{"title":"Hobbywing SeaKing ESCs – Brushless Marine Speed Controllers","description":"\u003cstyle\u003e\n  .desc-section {\n    max-width: 75rem; \/* 1200px *\/\n    margin: 0 auto;\n    padding: 1.5rem 1rem;\n    background-color: #ffffff;\n    border-radius: 0;\n  }\n  .desc-text p {\n    color: #333333;\n    line-height: 1.75;\n    margin-bottom: 1rem;\n  }\n.desc-text.collapsed .collapsible {\n  display: none;\n}\n@media screen and (min-width: 768px) {\n  .desc-text.collapsed .collapsible {\n    display: block;\n  }\n}\n  .desc-btn-wrapper {\n    display: flex;\n    justify-content: center;\n    margin-top: 1rem;\n  }\n  .desc-button {\n    background-color: #E60073;\n    color: white;\n    border: none;\n    padding: 0.75rem 1.5rem;\n    border-radius: 9999px;\n    font-weight: 700;\n    text-transform: uppercase;\n    font-size: 0.875rem;\n    letter-spacing: 0.05em;\n    cursor: pointer;\n    transition: background-color 0.3s ease;\n  }\n  .desc-button:hover {\n    background-color: #D5006B;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"desc-section\"\u003e\n  \u003cdiv class=\"desc-text collapsed\" id=\"descText\"\u003e\n\u003cp\u003e\nExplore \u003cstrong\u003eHobbywing SeaKing ESCs\u003c\/strong\u003e, a range of brushless marine electronic speed controllers designed for reliable power delivery, precise throttle response, and demanding RC boat applications. From compact recreational speedboats to high-performance racing hulls, the SeaKing lineup combines water-cooling technology, programmable motor control, and model-specific protection features to support a wide variety of electric marine setups.\n\u003c\/p\u003e\n\n\u003cp class=\"collapsible\"\u003e\nOur collection includes \u003cstrong\u003eHobbywing SeaKing V4, SeaKing HV V4, and SeaKing Pro ESCs\u003c\/strong\u003e, with continuous current ratings from 30A to 300A and LiPo compatibility spanning 2S through 14S across the range. Choose from compact 30A\/60A controllers, versatile 90A\/120A models, powerful 160A\/200A\/300A units, or competition-focused SeaKing Pro options. Selected models offer IP67 waterproof protection, integrated Bluetooth programming, adjustable BEC voltage, and performance data logging.\n\u003c\/p\u003e\n\n\u003cp class=\"collapsible\"\u003e\nFind the right \u003cstrong\u003eHobbywing SeaKing marine ESC\u003c\/strong\u003e by matching your motor's current requirements, LiPo cell count, boat size, available installation space, and cooling setup. Browse the products below, then compare individual SeaKing models, V4 versus Pro features, programming options, and electrical specifications in our detailed buying guide.\n\u003c\/p\u003e\n\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"desc-btn-wrapper\"\u003e\n    \u003cbutton class=\"desc-button\" id=\"descToggleBtn\" aria-expanded=\"false\" aria-controls=\"descText\"\u003e\n      Read Full Guide\n    \u003c\/button\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\n  const text = document.getElementById('descText');\n  const btn = document.getElementById('descToggleBtn');\n\n  function updateButton(expanded) {\n    btn.textContent = expanded ? 'Show Less' : 'Read Full Guide';\n    btn.setAttribute('aria-expanded', expanded);\n  }\n\n  btn.addEventListener('click', () =\u003e {\n    const isCollapsed = text.classList.toggle('collapsed');\n    updateButton(!isCollapsed);\n  });\n\n  function handleResize() {\n    if(window.innerWidth \u003e= 768) {\n      text.classList.remove('collapsed');\n      updateButton(true);\n    } else {\n      text.classList.add('collapsed');\n      updateButton(false);\n    }\n  }\n\n  window.addEventListener('resize', handleResize);\n  window.addEventListener('load', handleResize);\n\u003c\/script\u003e","products":[{"product_id":"hobbywing-seaking-30a-v4-brushless-rc-boat-esc","title":"Hobbywing SEAKING 30A V4 2-3S Waterproof Brushless Marine ESC","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;color:#333;font-size:15px;line-height:1.75;\"\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe \u003cstrong\u003eHobbywing SEAKING 30A V4 Brushless Marine ESC\u003c\/strong\u003e is a compact, water-cooled electronic speed controller designed for small RC boats running 2S or 3S LiPo batteries. With a 30A continuous current rating, 100A peak output and an IP67 waterproof design, it brings modern SeaKing V4 motor control to lightweight marine power systems.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 16px;\"\u003eBuilt for brushless sensorless motors, this \u003cstrong\u003e30A RC boat ESC\u003c\/strong\u003e combines a slim 32.8 × 26 × 18.3mm housing with an adjustable 6V\/7.4V switch-mode BEC, Freewheeling technology and programmable throttle settings. Support for Hobbywing programming devices, OTA data monitoring and firmware updates gives boat builders additional control over setup and performance.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:14px 16px;margin:18px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eQuick Fit Check\u003c\/strong\u003e\n\u003cul style=\"margin:8px 0 0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Brushless RC boats up to 45cm in length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2S–3S LiPo (7.4V–11.1V nominal).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e Sensorless brushless motor, single-motor setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 30A continuous \/ 100A peak.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e Water-cooled marine ESC; requires a suitable water-cooling circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery connector:\u003c\/strong\u003e Not preinstalled; soldering is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size:13px;line-height:1.65;margin:9px 0 0;color:#666;\"\u003eCheck motor current demand, propeller load, cooling layout, installation space and receiver power requirements before installation. Boat length is a manufacturer application guideline, not a guarantee of compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eHobbywing SEAKING 30A V4 Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:39%;background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBrand \/ Series\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eHobbywing SEAKING V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSEAKING 30A V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eProduct Number \/ SKU\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e30302061\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eBrushless, Sensorless, Marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e30A \/ 100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e2–3S LiPo (7.4–11.1V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBuilt-in BEC\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSwitch-mode, adjustable 6V \/ 7.4V; 2A per current online product specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCooling System\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eWater-cooled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCooling Pipe Diameter\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e2.0mm inner \/ 4.0mm outer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e32.8 × 26 × 18.3mm (excluding cooling pipe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e33.9g (including wires and motor connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Input Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e14AWG red \/ black, 75mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Output Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e3 × 16AWG black wires, 60mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Input Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNone (connector installation required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Output Connectors\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e3.5mm gold female bullet connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eESC Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eLED Program Box, LCD G2 \/ Pro, OTA Programmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eFirmware Upgrade\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported with compatible programming hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e≤45cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eKey Features of the SEAKING 30A V4\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003eIP67 Waterproof Protection with Water Cooling\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eMarine electronics must cope with splashes, moisture and heat in confined hulls. The SEAKING 30A V4 features an IP67-rated design and integrated water-cooling passages to support operation in compatible RC boat installations.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eIts cooling pipe connections use a 2.0mm inner and 4.0mm outer diameter. A properly connected water-cooling circuit helps carry heat away from the ESC during operation, particularly when the motor is working under propeller load.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eAlthough the ESC is waterproof, electrical plugs and exposed connections should be checked and dried after use to reduce corrosion risk. Secure cooling hoses to prevent leaks or disconnection.\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/003_eaa55e14-a613-4611-bdd6-270d77847e2c.png?v=1794378025\" alt=\"Hobbywing SeaKing 30A V4 IP67 waterproof brushless marine ESC with water cooling\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eCompact 32.8mm Housing for Small RC Boats\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eWith a 32.8 × 26 × 18.3mm body and a weight of approximately 33.9g including wires and output connectors, the SEAKING 30A V4 is designed for compact installations where hull space and component weight matter.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eThe slim V4 construction makes it easier to organize the ESC, brushless motor, cooling tubing, receiver and battery inside a small RC boat. Hobbywing recommends this model for boats up to 45cm in length, subject to the electrical demands of the power system.\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/006_22c54377-7107-4f1e-9cb1-e6016e964b41.png?v=1794378194\" alt=\"Hobbywing SeaKing V4 compact ESC design compared with previous SeaKing V3 models\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAdjustable 6V \/ 7.4V Switch-Mode BEC\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eThe integrated switch-mode BEC supplies regulated power to the receiver and compatible steering servo, helping simplify the electrical layout without requiring a separate receiver battery in suitable installations.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eChoose 6V for standard-voltage electronics or 7.4V when the connected receiver and servo are rated for higher-voltage operation. Always verify the voltage and current requirements of the radio system before changing the BEC setting.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eFreewheeling Technology for Improved Throttle Behavior\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eHobbywing's Freewheeling technology helps improve motor-control efficiency and throttle response. It can also contribute to reduced ESC heat generation and more controlled deceleration when the throttle is released.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eOn the SEAKING 30A V4, Freewheeling is enabled and cannot be disabled through the programming menu. This provides consistent behavior without requiring users to select the function during setup.\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/009_0b921594-b7de-4cf1-9ecb-5251394c36bf.png?v=1794378389\" alt=\"Hobbywing SeaKing V4 Freewheeling technology for RC boat deceleration and throttle control\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAUX Channel Adjustment from Your Radio\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eThe additional yellow signal wire allows the ESC to use an available receiver channel for real-time adjustment of selected parameters. Depending on the chosen AUX function, you can adjust maximum reverse force, punch or drag brake through a suitable transmitter switch or control.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eThis is particularly useful for boat builders who want to fine-tune handling without repeatedly connecting programming hardware. The receiver must have an available channel, and the transmitter must be configured appropriately.\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/010_a6c62222-06d0-41d1-8b3a-fefacb527780.png?v=1794378494\" alt=\"Hobbywing SeaKing 30A V4 AUX yellow signal wire for remote ESC parameter adjustment\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eHW LINK Data Monitoring and Firmware Support\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 30A V4 supports performance monitoring through the Hobbywing HW LINK system when connected to a compatible external OTA Bluetooth module.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eAvailable monitoring functions include recorded peak values and, with the appropriate OTA connection during operation, real-time information such as throttle position, voltage, temperature and motor speed. Historical operating graphs can also be reviewed through the OTA-supported data function.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px;\"\u003eFirmware upgrades and parameter adjustments are supported through compatible Hobbywing programming equipment. The OTA module or suitable LCD programming hardware is required for the corresponding functions and is sold separately.\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/011_b3ec2e9b-1425-476a-8259-da2c52c1286a.png?v=1794378554\" alt=\"Hobbywing SeaKing V4 ESC performance monitoring using HW LINK app and external OTA Bluetooth module\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eBattery, Motor and Connector Compatibility\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 30A V4 supports \u003cstrong\u003e2S and 3S LiPo batteries\u003c\/strong\u003e. Selecting the right battery is only part of the setup: motor current, propeller size, hull load and cooling conditions determine whether a 30A ESC has sufficient operating headroom.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:39%;background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e2S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e7.4V nominal; supported for suitable brushless marine power systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e3S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e11.1V nominal; supported when the motor and overall setup are rated for 3S operation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e4S LiPo or Higher\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported by this ESC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eThree-phase sensorless brushless motor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eChoose and solder a suitable connector matching the battery and expected current.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:13px 16px;margin:16px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eImportant Connector Note:\u003c\/strong\u003e\n\u003cp style=\"margin:6px 0 0;\"\u003eThe SEAKING 30A V4 does not include a preinstalled battery input connector. The red and black battery leads must be fitted with a suitable connector before use. The motor side has three 3.5mm gold female bullet connectors. Check the mating motor connectors before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eESC Programming and Setup\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 12px;\"\u003eThe SEAKING 30A V4 offers adjustable motor-control settings so you can configure the ESC for your boat's operating requirements.\u003c\/p\u003e\n\n\u003cul style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRunning Mode:\u003c\/strong\u003e Forward Only or Forward and Reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Reverse Force:\u003c\/strong\u003e Adjust reversing strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiPo Cell Count:\u003c\/strong\u003e Automatic detection or manual 2S \/ 3S selection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Cutoff:\u003c\/strong\u003e Set a suitable battery protection threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC Voltage:\u003c\/strong\u003e Select 6V or 7.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Rotation:\u003c\/strong\u003e Change motor direction electronically.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePunch:\u003c\/strong\u003e Adjust acceleration response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrag Brake:\u003c\/strong\u003e Tune deceleration at neutral throttle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming:\u003c\/strong\u003e Adjust motor timing according to the power system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX Channel Function:\u003c\/strong\u003e Assign supported real-time parameter adjustments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFreewheeling is also part of the V4 parameter system, but it remains enabled on the 30A version. Available settings and menu options may vary by model and firmware.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe ESC supports the Hobbywing LED Program Box, LCD G2 \/ Pro programming boxes and OTA Programmer. For a straightforward bench-setup accessory, see the \u003ca href=\"https:\/\/chinahobbyline.com\/products\/hobbywing-esc-led-program-card\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing ESC LED Program Card\u003c\/a\u003e.\u003c\/p\u003e\n\n\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eBefore Your First Run\u003c\/h3\u003e\n\n\u003col style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003eCheck the motor, battery connector, receiver wiring and water-cooling connections.\u003c\/li\u003e\n\u003cli\u003eConfigure the transmitter and perform throttle-range calibration as described in the official manual.\u003c\/li\u003e\n\u003cli\u003eConfirm that the ESC correctly detects the LiPo cell count.\u003c\/li\u003e\n\u003cli\u003eSet the BEC voltage, low-voltage cutoff and running mode for the connected equipment.\u003c\/li\u003e\n\u003cli\u003eTest motor rotation and throttle response with the propeller safely clear of people and objects.\u003c\/li\u003e\n\u003cli\u003eVerify cooling-water flow before operating under load.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAlways disconnect the LiPo battery after use. Do not leave the battery connected to the ESC during storage.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eProtection and Operating Reliability\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 30A V4 includes important electronic safeguards for marine use, including low-voltage protection, ESC temperature protection, over-current protection and throttle-signal-loss protection.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThese functions help reduce the risk of damage when operating conditions become abnormal. However, they do not replace correct motor selection, adequate current headroom, reliable connectors or effective water cooling.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eModel-specific note:\u003c\/strong\u003e The SEAKING 30A V4 does not include the dedicated capacitor overheating protection available on certain higher-current SeaKing V4 models.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eOfficial Hobbywing SEAKING V4 Manual\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor throttle calibration, programming options, wiring instructions, protection behavior and troubleshooting, refer to the official Hobbywing user manual covering the SEAKING 30A, 60A, 90A and 120A V4 ESCs.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_SEAKING_120A-90A-60A-30A_V4__Manual.pdf?v=1794375916\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#E60073;text-decoration:underline;font-weight:bold;\"\u003eDownload Hobbywing SEAKING 30A V4 User Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eExplore More Hobbywing Marine ESCs \u0026amp; Accessories\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eLooking for a different power rating or planning another RC boat build? Explore our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e to compare marine speed controllers across the SeaKing series, or browse our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/rc-boat-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eRC Boat ESC collection\u003c\/a\u003e for more electronic speed controllers designed for brushless marine power systems.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor additional speed controllers and setup tools, visit our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing ESC collection\u003c\/a\u003e and \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\" style=\"color:#E60073;text-decoration:underline;\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eIs the Hobbywing SEAKING 30A V4 waterproof?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. It features an IP67-rated waterproof design for marine use. Check and dry exposed electrical connections after operation, and ensure the water-cooling system is properly connected.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 30A V4 support 3S LiPo batteries?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. It supports both 2S and 3S LiPo batteries. The connected brushless motor and overall power system must also be suitable for the selected voltage and operating current.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat size RC boat is the SEAKING 30A V4 designed for?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eHobbywing recommends boats up to 45cm in length. Actual suitability depends on motor specifications, propeller load, expected current draw, cooling and installation dimensions.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 30A V4 have a built-in BEC?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. It has an adjustable switch-mode BEC with 6V and 7.4V output settings. Select the voltage according to the receiver and servo specifications. Check the current rating against the actual equipment and ESC documentation.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 30A V4 have built-in Bluetooth?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The ESC supports Hobbywing HW LINK app functions through a compatible external OTA Bluetooth module. The module is required for Bluetooth-based configuration and monitoring.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I update the SEAKING 30A V4 firmware?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Firmware updating is supported using compatible Hobbywing programming hardware and software. An appropriate LCD programming box or OTA module is required.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I use a Hobbywing LED Program Card with this ESC?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. The SEAKING 30A V4 supports compatible Hobbywing LED programming equipment. Follow the model-specific wiring and programming instructions in the official user manual.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 30A V4 include a battery connector?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The battery input wires come without a preinstalled connector. A suitable connector must be soldered to the ESC and matched to the battery plug and current requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan this ESC run a brushed motor or two brushless motors?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The SEAKING 30A V4 is designed to control one compatible sensorless brushless motor. It is not a brushed motor ESC, and a single ESC should not be used to drive two brushless motors.\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67943723008214,"sku":"30302061 GL","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/01_b6208cc5-d78d-458a-934d-ff55fd9b87ea.webp?v=1794377974"},{"product_id":"hobbywing-seaking-60a-v4-brushless-rc-boat-esc","title":"Hobbywing SEAKING 60A V4 2-3S Waterproof Brushless Marine ESC","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;color:#333;font-size:15px;line-height:1.75;\"\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe \u003cstrong\u003eHobbywing SEAKING 60A V4 Brushless Marine ESC\u003c\/strong\u003e brings 60A continuous power handling, IP67 waterproof protection and programmable motor control to compact RC boats running 2S or 3S LiPo batteries. Designed for sensorless brushless marine motors, this water-cooled ESC delivers a 200A peak current rating while maintaining a compact 38.7 × 29 × 25mm housing.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 16px;\"\u003eCompared with the smaller SeaKing 30A V4, the \u003cstrong\u003eSeaKing 60A V4 ESC\u003c\/strong\u003e provides twice the continuous current rating, a stronger adjustable 6V\/7.4V BEC and larger 4.0mm motor connectors. Add Freewheeling control, configurable throttle response, AUX channel adjustment and optional HW LINK monitoring, and it becomes a versatile choice for brushless RC boat builds requiring more power without moving to a larger ESC.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:14px 16px;margin:18px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eQuick Fit Check\u003c\/strong\u003e\n\u003cul style=\"margin:8px 0 0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Brushless RC boats up to 60cm in length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2S–3S LiPo (7.4V–11.1V nominal).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e Single sensorless brushless motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 60A continuous \/ 200A peak.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e Adjustable 6V \/ 7.4V, rated at 4A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Connectors:\u003c\/strong\u003e 4.0mm gold female bullet connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Connector:\u003c\/strong\u003e Not preinstalled; soldering required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e Water-cooled, requiring a functioning marine cooling circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size:13px;line-height:1.65;margin:9px 0 0;color:#666;\"\u003eMotor current demand, propeller load, cooling efficiency and available installation space must all be considered. The 60cm boat-length recommendation is a manufacturer guideline, not a universal fit guarantee.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eHobbywing SEAKING 60A V4 Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:39%;background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBrand \/ Series\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eHobbywing SEAKING V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSEAKING 60A V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eBrushless \/ Sensorless \/ Marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e60A \/ 200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e2–3S LiPo (7.4–11.1V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSwitch-mode, 6V \/ 7.4V adjustable, 4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCooling System\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eWater-cooled marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCooling Pipe Diameter\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e2.0mm inner \/ 4.0mm outer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e38.7 × 29 × 25mm (excluding cooling pipe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e64.6g (including wires and output connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Input Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e14AWG red \/ black, 85mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Output Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e3 × 14AWG black wires, 85mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Input Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNone (connector installation required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Output Connectors\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e4.0mm gold female bullet connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eESC Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eLED Program Box, LCD G2, LCD Pro, OTA Programmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eData Recording\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003ePeak values and real-time data; historical graphs with external OTA connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBuilt-in Historical Graph Storage\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported independently\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eFirmware Upgrade\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported with compatible programming hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e≤60cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eStock Number\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e30302201\u003c\/td\u003e\n\u003c\/tr\u003e  \n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eWhy Choose the SEAKING 60A V4?\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003e60A Continuous Power for 2S–3S Marine Systems\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 60A V4 provides a significant step up from entry-level 30A marine speed controllers while retaining the same 2S–3S LiPo operating range. Its 60A continuous and 200A peak current ratings make it suitable for more demanding small-boat power systems, provided the motor and propeller combination remains within the ESC's operating limits.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe additional current capacity is particularly useful when moving to a higher-load brushless motor or a setup that requires stronger acceleration. However, the ESC's peak rating should never be treated as a sustainable operating current.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor reliable operation, motor current should be evaluated under actual propeller load, with adequate cooling and sufficient current headroom. A 60A ESC does not automatically make every 2S or 3S motor combination suitable.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eIP67 Waterproof Design with Water Cooling\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 60A V4 features an IP67 waterproof design for RC marine environments. Its sealed construction helps protect the ESC electronics against water exposure, while the integrated water-cooling system transfers heat away during operation.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe cooling pipe uses a 2.0mm inner and 4.0mm outer diameter, allowing integration with compatible marine water-cooling tubing. Secure all hose connections and verify water flow before running the motor under load.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWaterproof protection does not eliminate maintenance. After use, inspect and dry exposed electrical connections to reduce the risk of corrosion, especially when operating in wet or dirty conditions.\u003c\/p\u003e\n\n\n  \n  \n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/003_eaa55e14-a613-4611-bdd6-270d77847e2c.png?v=1794378025\" alt=\"Hobbywing SeaKing 60A V4 IP67 waterproof brushless marine ESC for RC boats\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eSlim 29mm Width for Easier Boat Installation\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eDespite offering twice the continuous current rating of the 30A model, the SeaKing 60A V4 maintains a compact housing measuring just 38.7 × 29 × 25mm, excluding the water-cooling pipe.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eHobbywing's V4 housing design is approximately 25% narrower than the previous SeaKing 60A V3, helping simplify component placement inside narrow boat hulls.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWith a total weight of 64.6g including wires and output connectors, it offers a practical balance between power handling, cooling and installation size for compatible RC boats up to 60cm long.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAdjustable 6V \/ 7.4V Switch-Mode BEC\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe built-in switch-mode BEC provides regulated power for the receiver and steering servo, with selectable output voltages of 6V and 7.4V and a rated output current of 4A.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eChoose the 6V setting for compatible standard-voltage radio equipment, or 7.4V when the receiver and steering servo support higher-voltage operation. The increased BEC current rating compared with the 30A model provides additional power capacity for suitable steering systems.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAlways verify the voltage and current requirements of the connected receiver and servo. Do not select 7.4V for electronics that are only rated for 6V operation.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAdjustable Freewheeling for Better Throttle Control\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eHobbywing's Freewheeling function is designed to improve motor-control efficiency and throttle linearity while helping reduce ESC heat generation under comparable operating conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWhen Freewheeling is enabled, the boat can decelerate more quickly after the throttle is released, helping improve control when approaching turns or making speed adjustments.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eUnlike the 30A V4, which operates with Freewheeling permanently enabled, the \u003cstrong\u003eSEAKING 60A V4 allows Freewheeling to be enabled or disabled\u003c\/strong\u003e through the programming system. This gives users additional flexibility to adjust motor-control behavior.\u003c\/p\u003e\n\n  \n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/009_0b921594-b7de-4cf1-9ecb-5251394c36bf.png?v=1794378389\" alt=\"Hobbywing SeaKing 60A V4 adjustable Freewheeling function for improved RC boat throttle control\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAUX Channel for Real-Time Parameter Adjustment\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe additional yellow signal wire enables selected ESC parameters to be controlled through an available receiver channel and a properly configured transmitter.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eDepending on the AUX function assigned, users can adjust maximum reverse force, acceleration punch or drag brake force using a transmitter switch or control.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis makes it easier to fine-tune boat handling without repeatedly stopping to change settings using a separate programming device. The receiver must have a suitable unused channel, and correct wiring is essential.\u003c\/p\u003e\n\n  \n  \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/010_a6c62222-06d0-41d1-8b3a-fefacb527780.png?v=1794378494\" alt=\"Hobbywing SeaKing 60A V4 AUX control using yellow signal wire for real-time ESC tuning\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \n  \n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eHW LINK Data Monitoring with External OTA Module\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 60A V4 supports performance monitoring through Hobbywing's HW LINK system when connected to a compatible external OTA Bluetooth module.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAvailable data functions include recorded peak values such as maximum current, maximum motor RPM, maximum ESC temperature and minimum battery voltage.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWith the OTA module connected during operation, supported real-time data and historical operating graphs can also be accessed through the HW LINK app. These monitoring tools help users evaluate motor load and ESC operating conditions when adjusting a boat's power system.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Bluetooth is not built into the 60A V4 ESC. The OTA module is required for Bluetooth connectivity, and independent built-in historical graph storage is not supported.\u003c\/p\u003e\n\n  \n  \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/011_b3ec2e9b-1425-476a-8259-da2c52c1286a.png?v=1794378554\" alt=\"Hobbywing SeaKing 60A V4 ESC data monitoring with HW LINK app and external OTA Bluetooth module\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eFirmware Updates and Advanced Programming\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 60A V4 supports firmware upgrades using compatible Hobbywing programming equipment. Programming options include the LED Program Box, LCD G2, LCD Pro and OTA Programmer.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe ESC offers 11 programmable parameter categories, including running mode, reversing force, LiPo cell count, low-voltage cutoff, BEC voltage, motor rotation, punch, Freewheeling, drag brake, timing and AUX channel function.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFirmware updates through the corresponding computer software or HW LINK app require compatible external programming hardware, sold separately.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eBattery, Motor and Connector Compatibility\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe Hobbywing SEAKING 60A V4 is designed for 2S–3S LiPo-powered, single-motor brushless RC boats. When selecting components, consider battery voltage, motor current requirements, propeller load and the physical dimensions of the boat's power compartment.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:39%;background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e2S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e7.4V nominal; supported with an appropriately matched brushless motor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e3S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e11.1V nominal; supported when the motor, propeller and overall setup are rated for 3S operation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e4S LiPo or Higher\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported by this ESC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSingle three-phase sensorless brushless motor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Connection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e4.0mm gold female bullet connectors on three 14AWG output leads.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Connection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNo factory-installed battery connector; installation required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:13px 16px;margin:16px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eConnector Installation Note\u003c\/strong\u003e\n\u003cp style=\"margin:6px 0 0;\"\u003eThe SEAKING 60A V4 is supplied with bare battery input wires. Select and solder an appropriate connector that matches the battery and expected current load. The motor output leads use 4.0mm gold female bullet connectors, so the motor must have compatible mating connectors or suitable replacement connectors must be installed. Observe correct polarity and use properly insulated solder joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eSEAKING 60A V4 vs 30A V4: Which One Should You Choose?\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eBoth models support 2S–3S LiPo batteries and share the core SeaKing V4 waterproof marine design. The most important difference is the available current capacity, followed by BEC capability, connector size and application range.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.6;margin:12px 0 16px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#E60073;color:#fff;\"\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003e30A V4\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003e60A V4\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e30A\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e60A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003ePeak Current\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e100A\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eLiPo Support\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e2–3S\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e2–3S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBEC Current\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e2A (online spec)\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eMotor Bullet Connectors\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e3.5mm\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e4.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eFreewheeling\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eAlways enabled\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e≤45cm\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e≤60cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eChoose the 30A V4\u003c\/strong\u003e for a lighter, lower-current brushless setup where minimizing ESC size and weight is the priority.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eChoose the 60A V4\u003c\/strong\u003e when your system requires higher continuous current capacity, a stronger BEC or larger motor connectors, while remaining within the supported 2S–3S voltage range.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor larger boats or higher-voltage systems, compare additional models in our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eProgramming and First-Time Setup\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eProper throttle calibration and ESC configuration are essential before operating a new brushless marine power system. The SEAKING 60A V4 supports the following adjustments:\u003c\/p\u003e\n\n\u003cul style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRunning Mode:\u003c\/strong\u003e Forward Only or Forward and Reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Reverse Force:\u003c\/strong\u003e Select the desired reversing strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiPo Cells:\u003c\/strong\u003e Automatic detection or manual 2S \/ 3S configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Cutoff:\u003c\/strong\u003e Configure battery discharge protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC Voltage:\u003c\/strong\u003e Select 6V or 7.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Rotation:\u003c\/strong\u003e Set clockwise or counterclockwise operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePunch:\u003c\/strong\u003e Adjust acceleration response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreewheeling:\u003c\/strong\u003e Enable or disable the function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrag Brake Force:\u003c\/strong\u003e Configure deceleration at neutral throttle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Timing:\u003c\/strong\u003e Tune timing to suit the motor and operating load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX Channel Function:\u003c\/strong\u003e Assign a supported parameter for transmitter-based adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eProgramming Connection for the 60A V4\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 60A V4 has model-specific programming connection instructions. When using an LED or LCD programming box, follow the official manual's dedicated three-pin programming-port connection diagram. A compatible JR connection cable is used between the ESC programming port and programming device.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor OTA programming, follow the manual's 60A-specific OTA connection instructions rather than assuming that all SeaKing V4 models use the same wiring arrangement.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eYou can also browse the \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\" style=\"color:#E60073;text-decoration:underline;\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e collection for compatible setup equipment.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eBefore Your First Run\u003c\/h3\u003e\n\n\u003col style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003eConfirm the ESC, motor, battery and receiver connections are correct.\u003c\/li\u003e\n\u003cli\u003eConnect and secure the water-cooling tubing.\u003c\/li\u003e\n\u003cli\u003eSet the transmitter throttle controls to the required calibration positions.\u003c\/li\u003e\n\u003cli\u003ePerform throttle-range calibration according to the official manual.\u003c\/li\u003e\n\u003cli\u003eVerify correct 2S or 3S battery detection.\u003c\/li\u003e\n\u003cli\u003eConfigure BEC voltage, running mode and low-voltage cutoff.\u003c\/li\u003e\n\u003cli\u003eCheck motor direction and throttle response with the propeller safely clear.\u003c\/li\u003e\n\u003cli\u003eVerify cooling-water circulation before sustained operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAlways disconnect the LiPo battery after operation. Do not leave the battery connected to the ESC during storage.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eProtection Features for Marine Operation\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 60A V4 integrates several electronic protection functions to help safeguard the ESC and connected power system during abnormal operating conditions.\u003c\/p\u003e\n\n\u003cul style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Protection:\u003c\/strong\u003e Helps prevent excessive LiPo discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC Over-Temperature Protection:\u003c\/strong\u003e Reduces output when ESC temperature becomes excessive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-Current Protection:\u003c\/strong\u003e Responds to excessive current conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Signal Loss Protection:\u003c\/strong\u003e Helps prevent uncontrolled motor operation when the receiver signal is lost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThese safeguards complement proper system design but do not replace correct motor matching, reliable electrical connections, adequate cooling or responsible operation.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eModel-specific clarification:\u003c\/strong\u003e The SEAKING 60A V4 does not feature the dedicated capacitor overheating protection found on certain higher-current SeaKing V4 models.\u003c\/p\u003e\n\n  \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/002_86ec64d3-0867-48af-9b6a-b11c61a76ca7.png?v=1794385967\" alt=\"Hobbywing SeaKing 60A V4 marine ESC low voltage over-temperature overload and signal loss protection\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eOfficial Hobbywing SEAKING 60A V4 Manual\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor wiring, throttle calibration, programming-port connections, adjustable parameters, LED indicators, safety precautions and troubleshooting, refer to the official Hobbywing SEAKING V4 user manual.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_SEAKING_120A-90A-60A-30A_V4__Manual.pdf?v=1794375916\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#E60073;text-decoration:underline;font-weight:bold;\"\u003eDownload Hobbywing SEAKING 60A V4 User Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 14px;\"\u003eThe manual also covers the SEAKING 30A, 90A and 120A V4 models. Follow the 60A-specific specifications and programming instructions.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eExplore More Hobbywing Marine ESCs \u0026amp; Accessories\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eLooking for a different current rating or planning another RC boat build? Explore our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e to compare marine speed controllers across the SeaKing series, or browse our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/rc-boat-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eRC Boat ESC collection\u003c\/a\u003e for more electronic speed controllers designed for marine power systems.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor additional speed controllers and setup tools, visit our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing ESC collection\u003c\/a\u003e and \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\" style=\"color:#E60073;text-decoration:underline;\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat batteries can I use with the Hobbywing SEAKING 60A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe SEAKING 60A V4 supports 2S and 3S LiPo batteries. The motor, propeller and overall power system must be compatible with the selected battery voltage. 4S or higher LiPo batteries are not supported.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eIs the SEAKING 60A V4 waterproof?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. The ESC features IP67 waterproof protection. However, the water-cooling system must still be installed correctly, and exposed electrical connectors should be inspected and dried after use.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat size RC boat is the SEAKING 60A V4 suitable for?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eHobbywing recommends boats up to 60cm in length. Actual suitability depends on motor current demand, propeller load, cooling efficiency and installation space.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat is the difference between SeaKing 30A V4 and 60A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe 60A V4 doubles the continuous current rating from 30A to 60A and increases the peak current rating from 100A to 200A. It also features a higher-rated BEC, larger 4.0mm motor bullet connectors, adjustable Freewheeling and a longer recommended boat length.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 60A V4 have a built-in BEC?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. It includes a 4A switch-mode BEC with selectable 6V and 7.4V output. Always verify that the receiver and steering servo support the selected voltage and current requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the Hobbywing SEAKING 60A V4 have built-in Bluetooth?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. Bluetooth connectivity requires a compatible external Hobbywing OTA module. With the module and appropriate connection, supported HW LINK app programming and monitoring functions become available.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan the SEAKING 60A V4 record performance data?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. The ESC supports peak-value recording and real-time data monitoring. Historical operational graphs require an external OTA module connected during operation. Independent built-in historical graph storage is not supported.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I turn Freewheeling off on the 60A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Unlike the 30A V4, the SeaKing 60A V4 allows Freewheeling to be enabled or disabled using compatible programming equipment.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I update the SeaKing 60A V4 firmware?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Firmware upgrades are supported through compatible Hobbywing programming hardware and software. A suitable LCD programming box or OTA module is required for the corresponding update method.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhich programming box works with the SEAKING 60A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe ESC supports compatible Hobbywing LED Program Box, LCD G2, LCD Pro and OTA programming devices. The 60A model has specific programming-port wiring instructions, so consult the official manual before connecting programming hardware.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 60A V4 come with a battery connector?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. Its battery input wires are supplied without a preinstalled connector. A properly rated connector must be soldered to match the battery and electrical requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat motor connectors are fitted to the SEAKING 60A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe three motor output wires are fitted with 4.0mm gold female bullet connectors. Use compatible mating motor connectors or install suitable alternatives where necessary.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 60A V4 have capacitor overheating protection?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. Hobbywing specifies that the SeaKing 30A and 60A V4 models do not include the dedicated capacitor overheating protection function. Other supported protections include low-voltage, ESC over-temperature, over-current and throttle-signal-loss protection.\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67944273641686,"sku":"30302201 GL","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/01_72165af4-690a-4fb1-b452-6911c766d68b.webp?v=1794385535"},{"product_id":"hobbywing-seaking-90a-v4-brushless-rc-boat-esc","title":"Hobbywing SEAKING 90A V4 2-4S Waterproof Brushless Marine ESC","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\n\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;color:#333;font-size:15px;line-height:1.75;\"\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe \u003cstrong\u003eHobbywing SEAKING 90A V4 Brushless Marine ESC\u003c\/strong\u003e is a high-performance, water-cooled electronic speed controller designed for RC boats running 2S to 4S LiPo batteries. With a 90A continuous current rating, 360A peak output and an IP67 waterproof design, it provides the power-handling capability and programmable control needed for more demanding brushless marine setups.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 16px;\"\u003eStepping up from the SeaKing 60A V4, the \u003cstrong\u003eSeaKing 90A V4 ESC\u003c\/strong\u003e adds 4S LiPo support, an 8A switch-mode BEC with adjustable 6V\/7.4V\/8.4V output, dedicated capacitor overheating protection and larger 12AWG power wiring. Combined with adjustable Freewheeling, AUX channel control and optional HW LINK data monitoring, it offers a flexible solution for RC boat builds requiring increased current capacity and more advanced power management.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:14px 16px;margin:18px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eQuick Fit Check\u003c\/strong\u003e\n\u003cul style=\"margin:8px 0 0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Brushless RC boats up to 80cm in length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2S–4S LiPo (7.4V–14.8V nominal).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e Single sensorless brushless marine motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 90A continuous \/ 360A peak.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e Adjustable 6V \/ 7.4V \/ 8.4V, rated at 8A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 with integrated water cooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Connectors:\u003c\/strong\u003e 4.0mm gold female bullet connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Connector:\u003c\/strong\u003e Not preinstalled; soldering required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size:13px;line-height:1.65;margin:9px 0 0;color:#666;\"\u003eCheck motor current draw, propeller load, water-cooling capacity, battery discharge capability and installation space before use. The 80cm boat-length recommendation is a manufacturer guideline rather than a guaranteed fitment limit.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eHobbywing SEAKING 90A V4 Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:39%;background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBrand \/ Series\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eHobbywing SEAKING V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSEAKING 90A V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eProduct Number \/ SKU\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e30302362\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eBrushless \/ Sensorless \/ Marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e90A \/ 360A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e2–4S LiPo (7.4–14.8V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBuilt-in BEC\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSwitch-mode, 6V \/ 7.4V \/ 8.4V adjustable, 8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCooling System\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eIntegrated water cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCooling Pipe Diameter\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e3.0mm inner \/ 5.5mm outer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e60 × 36.3 × 22.5mm (excluding water-cooling pipe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e115.6g (including wires and output connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Input Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e12AWG red × 150mm \/ 12AWG black × 150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Output Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e3 × 12AWG black, 100mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Input Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNone (connector installation required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Output Connectors\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e4.0mm gold female bullet connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eFreewheeling\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported, enable \/ disable selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCapacitor Overheating Protection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eESC Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eLED Program Box, LCD G2, LCD Pro, OTA Programmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eProgramming Connection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eThrottle signal cable + yellow signal cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003ePeak Data Recording\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eReal-Time Monitoring\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported with compatible external OTA module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eHistorical Graph Recording\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eExternal OTA supported; independent built-in historical graph recording not supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eFirmware Upgrade\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported with compatible programming hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e≤80cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eKey Features of the SEAKING 90A V4\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003e90A Continuous Power with 4S LiPo Support\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 90A V4 expands the available operating range beyond the 2S–3S limits of the smaller SeaKing 30A and 60A V4 models. Supporting \u003cstrong\u003e2S, 3S and 4S LiPo batteries\u003c\/strong\u003e, it gives RC boat builders greater flexibility when matching battery voltage to brushless motor requirements.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eIts 90A continuous current rating and 360A peak rating provide increased power-handling capability for appropriately configured marine propulsion systems. The 4S capability is particularly important when upgrading from a 3S setup to a compatible higher-voltage brushless motor and battery combination.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eHigher voltage does not automatically mean higher performance in every boat. Motor KV, propeller diameter, pitch, hull resistance and cooling efficiency all influence the actual current draw. The motor should be evaluated under operating load, and the 360A peak figure should not be treated as a continuous current rating.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eIP67 Waterproof Construction with Water Cooling\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eDesigned for the wet operating environment of RC boats, the SeaKing 90A V4 features an IP67-rated waterproof and dustproof construction. This helps protect the internal electronics from water exposure under the manufacturer's specified conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAn integrated water-cooling system provides heat transfer during operation. The cooling pipe connections measure \u003cstrong\u003e3.0mm inner diameter and 5.5mm outer diameter\u003c\/strong\u003e, making them larger than those used on the 30A and 60A V4 models.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eA properly functioning cooling circuit is especially important during sustained high-current operation. Confirm that the water inlet, tubing and outlet are correctly connected, and secure the hoses against loosening or leaks.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAlthough the ESC is waterproof, exposed plugs and electrical connectors should be inspected and dried after use to help prevent corrosion. Waterproof protection can also diminish with wear, damage and aging.\u003c\/p\u003e\n\n  \n  \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/003_eaa55e14-a613-4611-bdd6-270d77847e2c.png?v=1794378025\" alt=\"Hobbywing SeaKing 90A V4 IP67 waterproof marine ESC with integrated water cooling for RC boats\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003e8A Adjustable BEC with Three Voltage Options\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eOne of the most important upgrades over the SeaKing 60A V4 is the higher-output switch-mode BEC. The SEAKING 90A V4 provides a rated \u003cstrong\u003e8A BEC output\u003c\/strong\u003e with three selectable voltage settings: 6V, 7.4V and 8.4V.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe 6V option is appropriate for compatible standard-voltage receivers and servos. The 7.4V and 8.4V settings allow the ESC to supply equipment specifically designed for higher-voltage operation, including suitable high-torque steering servos.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis additional voltage flexibility is useful when building a boat with more demanding steering electronics. However, the selected BEC voltage must never exceed the maximum operating voltage of the connected receiver or servo.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:13px 16px;margin:16px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eBEC Compatibility Reminder\u003c\/strong\u003e\n\u003cp style=\"margin:6px 0 0;\"\u003eThe three BEC voltage options are selectable settings, not simultaneous outputs. Check both voltage compatibility and current requirements of the connected radio equipment before configuration. The manufacturer's published BEC rating for the SEAKING 90A V4 is 8A.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eCapacitor Overheating Protection\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 90A V4 includes a dedicated \u003cstrong\u003ecapacitor overheating protection function\u003c\/strong\u003e, adding another layer of protection for demanding marine applications.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eExcessive electrical loading can raise temperatures within the ESC's power components, including the capacitors. This protection function monitors abnormal capacitor temperature conditions and helps reduce the risk of damage associated with overheating.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAccording to Hobbywing's official manual, when capacitor overheating protection is triggered, ESC output is reduced to approximately 50%. Full output can be restored automatically after the temperature falls sufficiently.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis function is a meaningful difference from the SeaKing 30A and 60A V4 models, which do not include dedicated capacitor overheating protection. It complements proper current matching and cooling rather than replacing them.\u003c\/p\u003e\n\n  \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/008_6b73b234-3003-47e4-af48-9ec596d8413c.png?v=1794387112\" alt=\"Hobbywing SeaKing 90A V4 capacitor overheating protection for high-load RC boat operation\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAdjustable Freewheeling for More Controlled Handling\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 90A V4 incorporates Hobbywing's Freewheeling function to improve motor-control behavior and operating efficiency. When enabled, Freewheeling can help reduce ESC heat generation and improve throttle linearity under comparable operating conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eIt also changes how the boat responds when the throttle is released. With Freewheeling enabled, the boat can decelerate more quickly, giving the operator additional control when approaching corners or adjusting speed.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe 90A V4 allows Freewheeling to be enabled or disabled through the programming system, giving users flexibility to choose the behavior that best suits their boat and driving preferences.\u003c\/p\u003e\n\n\n  \n  \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/009_0b921594-b7de-4cf1-9ecb-5251394c36bf.png?v=1794378389\" alt=\"Hobbywing SeaKing 90A V4 adjustable Freewheeling function for RC boat deceleration and handling\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \n  \n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAUX Channel for Real-Time ESC Adjustment\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe additional yellow signal cable allows selected ESC parameters to be adjusted through an available receiver channel and compatible transmitter controls.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eBy assigning the AUX channel function, operators can adjust supported parameters such as maximum reverse force, acceleration punch or drag brake force using a transmitter switch or control.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis can simplify fine-tuning when evaluating boat handling, reducing the need to repeatedly connect a programming device for every minor adjustment. The receiver must have an available channel, and the transmitter must be configured correctly.\u003c\/p\u003e\n\n  \n    \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/010_a6c62222-06d0-41d1-8b3a-fefacb527780.png?v=1794378494\" alt=\"Hobbywing SeaKing 90A V4 AUX channel control with yellow signal wire for real-time ESC adjustments\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eHW LINK Data Logging and Performance Monitoring\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 90A V4 supports performance data monitoring through the Hobbywing HW LINK system using a compatible external OTA Bluetooth module.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eRecorded peak-value information can include minimum battery voltage, maximum current, maximum motor RPM and maximum ESC temperature. These values help operators evaluate how the propulsion system behaves under actual operating conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWith the appropriate OTA connection during operation, supported real-time measurements such as throttle position, voltage, temperature and motor speed can be monitored through the mobile app. Historical operating data can also be displayed as graphs.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis is particularly useful when comparing different propellers, adjusting motor timing or reviewing changes to the power system, although readings should always be interpreted in the context of the actual setup and operating conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Bluetooth connectivity requires an external OTA module; it is not integrated directly into the ESC. The 90A V4 does not support independent built-in historical graph recording without the appropriate external OTA arrangement.\u003c\/p\u003e\n\n    \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/007_b911d0ce-1ca8-4b68-a1a2-4209c7cf305b.png?v=1794387231\" alt=\"Hobbywing SeaKing 90A V4 ESC performance data logging with HW LINK app and external OTA Bluetooth module\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eFirmware Updates and 11 Programmable Parameters\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 90A V4 supports firmware upgrades and a comprehensive range of programmable motor-control settings through compatible Hobbywing programming hardware.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAvailable programming devices include the LED Program Box, LCD G2, LCD Pro and OTA Programmer. Firmware updating through Hobbywing software or the HW LINK mobile app requires compatible external hardware, such as a supported LCD programming box or OTA module.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWith 11 programmable parameter categories, the ESC allows users to configure acceleration, braking, running direction, motor timing, voltage protection and other operating characteristics to suit the boat's power system.\u003c\/p\u003e\n\n\n  \n    \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/011_b3ec2e9b-1425-476a-8259-da2c52c1286a.png?v=1794378554\" alt=\"Hobbywing SeaKing 90A V4 firmware updates using LCD programming box or external OTA programmer\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n  \n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eBattery, Motor and Connector Compatibility\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe Hobbywing SEAKING 90A V4 supports 2S–4S LiPo batteries and is designed to operate a single compatible sensorless brushless marine motor. Selecting a suitable battery requires more than matching cell count: discharge capability, connector ratings, motor current demand and propeller load must also be considered.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:39%;background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e2S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e7.4V nominal; supported with an appropriately matched brushless marine motor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e3S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e11.1V nominal; supported when the motor and propulsion system are rated for 3S operation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e4S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e14.8V nominal; supported for suitable 4S-rated brushless marine power systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e5S \/ 6S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported by the SEAKING 90A V4.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSingle three-phase sensorless brushless motor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Connection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eThree 4.0mm gold female bullet connectors on 12AWG output wires.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Connection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eBare 12AWG input wires; suitable battery connector must be installed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:13px 16px;margin:16px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eImportant Connector Note\u003c\/strong\u003e\n\u003cp style=\"margin:6px 0 0;\"\u003eThe SEAKING 90A V4 does not include a preinstalled battery input connector. The 12AWG red and black power leads must be fitted with a connector suitable for the battery and expected operating current. The motor output leads are equipped with 4.0mm gold female bullet connectors. Match connector sizes and polarity carefully, and ensure all solder joints are properly insulated.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eSeaKing 60A V4 vs 90A V4 vs 120A V4\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eChoosing the correct SeaKing V4 model depends on the electrical requirements of the complete propulsion system, not simply the size of the boat. The 90A V4 occupies the middle ground between the compact 60A model and the higher-current 120A V4.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.6;margin:12px 0 16px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#E60073;color:#fff;\"\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003e60A V4\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003e90A V4\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003e120A V4\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e60A\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e90A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003ePeak Current\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e200A\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e360A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e500A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eLiPo Support\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e2–3S\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e2–4S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e2–6S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBEC Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e6\/7.4V\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e6\/7.4\/8.4V\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e6\/7.4\/8.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBEC Current\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e4A\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e8A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eCapacitor Overheat Protection\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eYes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e64.6g\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e115.6g\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e123.5g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e≤60cm\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e≤80cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e≤100cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eChoose the 60A V4\u003c\/strong\u003e when a compact 2S–3S system requires moderate current capacity and a smaller, lighter ESC.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eChoose the 90A V4\u003c\/strong\u003e when you need 4S LiPo compatibility, an 8A adjustable BEC and additional current-handling capability without stepping up to the larger 120A class.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eChoose the 120A V4\u003c\/strong\u003e when your motor requires higher continuous current capacity or the power system operates beyond 4S, up to the manufacturer's 6S limit.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eExplore the full range in our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eESC Programming and First-Time Setup\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 90A V4 provides 11 programmable parameter categories, allowing the operator to configure motor behavior and protection settings for the specific boat.\u003c\/p\u003e\n\n\u003cul style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRunning Mode:\u003c\/strong\u003e Forward Only or Forward and Reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Reverse Force:\u003c\/strong\u003e Adjustable reverse-throttle strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiPo Cell Count:\u003c\/strong\u003e Automatic detection or manual 2S, 3S or 4S selection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Cutoff:\u003c\/strong\u003e Adjustable battery protection threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC Voltage:\u003c\/strong\u003e Select 6V, 7.4V or 8.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Rotation:\u003c\/strong\u003e Clockwise or counterclockwise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePunch:\u003c\/strong\u003e Seven acceleration-response levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreewheeling:\u003c\/strong\u003e Enable or disable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrag Brake Force:\u003c\/strong\u003e Adjustable neutral-throttle braking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Timing:\u003c\/strong\u003e Adjustable timing for compatible motor setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX Channel Function:\u003c\/strong\u003e Assign selected parameters for transmitter-based adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eProgramming Connections\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SEAKING 90A V4 supports compatible Hobbywing LED, LCD G2, LCD Pro and OTA programming devices. For the 90A model, the official programming procedure uses the throttle signal cable together with the yellow signal cable.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWhen using a programming box, both cables must be connected according to the manufacturer's polarity and signal-position instructions. When using an OTA Programmer, follow the official Y-cable connection diagram to configure the ESC and access supported data functions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eDo not assume the 90A V4 uses the same programming-port arrangement as the SeaKing 60A V4, which has a model-specific independent programming interface.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eFirst-Time Setup Checklist\u003c\/h3\u003e\n\n\u003col style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003eConfirm the motor, battery, receiver and ESC connections are correct.\u003c\/li\u003e\n\u003cli\u003eInstall and secure the water-cooling tubing.\u003c\/li\u003e\n\u003cli\u003eSet up the transmitter and perform throttle-range calibration.\u003c\/li\u003e\n\u003cli\u003eVerify that the ESC detects the correct LiPo cell count.\u003c\/li\u003e\n\u003cli\u003eConfigure BEC voltage for the receiver and steering servo.\u003c\/li\u003e\n\u003cli\u003eSet the running mode and an appropriate low-voltage cutoff.\u003c\/li\u003e\n\u003cli\u003eCheck motor rotation and throttle response with the propeller safely clear.\u003c\/li\u003e\n\u003cli\u003eVerify water circulation before running the boat under significant load.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAlways disconnect the LiPo battery after operation. The ESC can continue drawing a small amount of power when connected, potentially over-discharging the battery during storage.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eAdvanced Protection for Demanding RC Boat Use\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 90A V4 integrates multiple electronic protection functions designed to reduce the likelihood of ESC damage when operating conditions become abnormal.\u003c\/p\u003e\n\n\u003cul style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Protection:\u003c\/strong\u003e Helps prevent excessive LiPo battery discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC Over-Temperature Protection:\u003c\/strong\u003e Reduces output when the ESC temperature becomes excessive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-Current Protection:\u003c\/strong\u003e Responds to abnormal current conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Signal Loss Protection:\u003c\/strong\u003e Helps prevent uncontrolled motor operation when the receiver signal is lost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitor Overheating Protection:\u003c\/strong\u003e Reduces output under excessive capacitor-temperature conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThese safeguards improve operating reliability but do not eliminate the need for correct component selection, secure electrical connections, adequate cooling and appropriate motor loading.\u003c\/p\u003e\n\n\n  \n  \n    \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/002_86ec64d3-0867-48af-9b6a-b11c61a76ca7.png?v=1794385967\" alt=\"Hobbywing SeaKing 90A V4 marine ESC electronic protection against low voltage overheating overcurrent and signal loss\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eOfficial Hobbywing SEAKING 90A V4 Manual\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor wiring instructions, throttle calibration, programming connections, adjustable parameters, LED indicators, protection behavior and troubleshooting, refer to the official Hobbywing SEAKING V4 user manual.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_SEAKING_120A-90A-60A-30A_V4__Manual.pdf?v=1794375916\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#E60073;text-decoration:underline;font-weight:bold;\"\u003eDownload Hobbywing SEAKING 90A V4 User Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 14px;\"\u003eThis manual also covers the SEAKING 30A, 60A and 120A V4 models. Always follow the 90A-specific electrical specifications and programming instructions.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eExplore More Hobbywing Marine ESCs \u0026amp; Accessories\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eLooking for another current rating or planning a different RC boat power system? Explore our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e to compare marine speed controllers across the SeaKing series, or browse our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/rc-boat-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eRC Boat ESC collection\u003c\/a\u003e for more electronic speed controllers designed for brushless marine applications.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor additional speed controllers and setup tools, visit our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing ESC collection\u003c\/a\u003e and \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\" style=\"color:#E60073;text-decoration:underline;\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the Hobbywing SEAKING 90A V4 support 4S LiPo batteries?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. The SeaKing 90A V4 supports 2S, 3S and 4S LiPo batteries. Your brushless motor and complete propulsion system must also be rated for the selected voltage. 5S and 6S LiPo batteries are not supported by this model.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eIs the SeaKing 90A V4 waterproof?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. It features IP67 waterproof and dustproof protection. The water-cooling system must still be connected correctly, and exposed plugs should be checked and dried after use to reduce corrosion risk.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat size RC boat is the SEAKING 90A V4 suitable for?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eHobbywing recommends boats up to 80cm in length. Actual suitability depends on motor current draw, propeller load, cooling effectiveness and installation space.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat is the difference between the SeaKing 60A V4 and 90A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe 90A V4 increases continuous current capacity from 60A to 90A and supports up to 4S LiPo instead of 3S. It also features an 8A BEC with an additional 8.4V setting, larger power wiring and dedicated capacitor overheating protection.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat is the difference between the SeaKing 90A V4 and 120A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe 120A V4 supports 120A continuous current and up to 6S LiPo, compared with 90A and 4S for the 90A V4. Both models include an adjustable 6V\/7.4V\/8.4V 8A BEC and capacitor overheating protection.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 90A V4 have an 8.4V BEC option?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. The integrated 8A switch-mode BEC supports selectable 6V, 7.4V and 8.4V output. The 8.4V setting should only be used with receiver and servo equipment specifically rated for that voltage.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SeaKing 90A V4 have capacitor overheating protection?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Unlike the SeaKing 30A and 60A V4 models, the 90A V4 includes dedicated capacitor overheating protection. When triggered, the ESC reduces output until the capacitor temperature falls sufficiently.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I adjust Freewheeling on the SEAKING 90A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Freewheeling can be enabled or disabled using compatible Hobbywing programming equipment, allowing users to adjust motor-control behavior and deceleration characteristics.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SEAKING 90A V4 have built-in Bluetooth?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. Bluetooth connectivity requires a compatible external Hobbywing OTA module. The module enables supported HW LINK app functions, including programming and performance monitoring.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan the SeaKing 90A V4 record performance data?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. The ESC supports peak-value recording and real-time data monitoring. Historical operating graphs require the appropriate external OTA connection; independent built-in historical graph recording is not supported.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhich programming devices work with the SeaKing 90A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe ESC supports compatible Hobbywing LED Program Box, LCD G2, LCD Pro and OTA programming devices. Follow the official throttle-signal and yellow-signal cable connection instructions for this model.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I update the SEAKING 90A V4 firmware?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Firmware upgrades are supported using compatible Hobbywing programming equipment and software. An appropriate LCD programming box or OTA module is required for the relevant update method.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SeaKing 90A V4 come with a battery connector?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The 12AWG battery input leads are supplied without a preinstalled connector. Select and solder a connector suitable for the battery and current requirements. The motor outputs use 4.0mm gold female bullet connectors.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I use the SeaKing 90A V4 with a brushed motor or two brushless motors?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. It is designed to operate one compatible sensorless brushless motor. It is not a brushed motor controller, and a single ESC should not be used to drive two brushless motors.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67944393113814,"sku":"30302362 GL","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_a9e96aa3-2d3e-4574-a29b-0fd4116ecb1f.webp?v=1794386792"},{"product_id":"hobbywing-seaking-120a-v4-brushless-rc-boat-esc","title":"Hobbywing SEAKING 120A V4 2-6S Waterproof Brushless Marine ESC","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\u003cdiv style=\"font-family: Arial,Helvetica,sans-serif; color: #333; font-size: 15px; line-height: 1.75;\"\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe \u003cstrong\u003eHobbywing SEAKING 120A V4 Brushless Marine ESC\u003c\/strong\u003e is a high-current, water-cooled electronic speed controller designed for RC boats operating on 2S to 6S LiPo batteries. With 120A continuous current capacity, a 500A peak rating and an IP67 waterproof design, it provides the voltage flexibility and power handling required for demanding brushless marine propulsion systems.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003eAs the highest-current model in Hobbywing's standard SeaKing 30A–120A V4 range, the \u003cstrong\u003eSeaKing 120A V4 ESC\u003c\/strong\u003e combines 6S compatibility with an adjustable 8A switch-mode BEC, capacitor overheating protection, water cooling and configurable motor-control functions. Its slimmer V4 housing, AUX channel adjustment and optional HW LINK performance monitoring make it a practical option for RC boat builders upgrading to higher-voltage or higher-load brushless setups.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff7fb; border-left: 4px solid #E60073; padding: 14px 16px; margin: 18px 0;\"\u003e\n\u003cstrong style=\"color: #111;\"\u003eQuick Fit Check\u003c\/strong\u003e\n\u003cul style=\"margin: 8px 0 0; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Brushless RC boats up to 100cm in length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2S–6S LiPo (7.4V–22.2V nominal).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e Single compatible sensorless brushless marine motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 120A continuous \/ 500A peak.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e 8A switch-mode, adjustable 6V \/ 7.4V \/ 8.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 with integrated water cooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Connectors:\u003c\/strong\u003e 4.0mm gold female bullet connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Connector:\u003c\/strong\u003e Not preinstalled; soldering required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; line-height: 1.65; margin: 9px 0 0; color: #666;\"\u003eConfirm motor voltage rating, operating current, propeller load, battery discharge capability, cooling performance and available installation space before use. The recommended boat length is a manufacturer application guideline rather than a guaranteed fitment limit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eHobbywing SEAKING 120A V4 Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: separate; border-spacing: 0 8px!important; font-size: 14px; line-height: 1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39%; background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBrand \/ Series\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eHobbywing SEAKING V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSEAKING 120A V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eProduct Number \/ SKU\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e30302363\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eBrushless \/ Sensorless \/ Marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e120A \/ 500A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e2–6S LiPo (7.4–22.2V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSwitch-mode, 6V \/ 7.4V \/ 8.4V adjustable, 8A rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eCooling System\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eIntegrated water cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eCooling Pipe Diameter\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e3.0mm inner \/ 5.5mm outer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e64.7 × 36.3 × 22.5mm (excluding water-cooling pipe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e123.5g (including wires and output connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBattery Input Wires\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e12AWG red × 150mm \/ 12AWG black × 150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eMotor Output Wires\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e3 × 12AWG black wires, 100mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBattery Input Connector\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eNone (connector installation required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eMotor Output Connectors\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e4.0mm gold female bullet connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eFreewheeling\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSupported, enable \/ disable selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eCapacitor Overheating Protection\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eESC Programming\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eLED Program Box, LCD G2, LCD Pro, OTA Programmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eProgramming Connection\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eThrottle signal cable + yellow signal cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003ePeak Value Recording\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eReal-Time Data Monitoring\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSupported with compatible external OTA module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eHistorical Data Graphs\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eExternal OTA supported; independent built-in historical graph recording not supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eFirmware Upgrade\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSupported with compatible programming hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e≤100cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eKey Features of the SEAKING 120A V4\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 20px 0 8px;\"\u003e120A Continuous Current and 6S LiPo Compatibility\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe defining advantage of the SeaKing 120A V4 is its combination of \u003cstrong\u003e120A continuous current capacity and support for up to 6S LiPo batteries\u003c\/strong\u003e. While the SeaKing 90A V4 reaches its maximum supported voltage at 4S, the 120A model extends the operating range to 5S and 6S power systems.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eA 6S LiPo battery provides a nominal voltage of 22.2V, compared with 14.8V for 4S. For a properly matched motor and propeller, higher operating voltage can provide greater available electrical power and allow different motor-speed and current configurations.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe ESC's 500A peak rating provides short-duration current-handling capability, but it should not be interpreted as a sustainable operating limit. Continuous operation must remain within the 120A rating and suitable thermal conditions.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor high-performance RC boats, the actual electrical load depends on motor KV, propeller diameter, propeller pitch, hull resistance and operating conditions. Increasing battery voltage or propeller load without checking motor current can overload even a high-current ESC.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eIP67 Waterproof Design with Integrated Water Cooling\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 120A V4 features an IP67-rated waterproof and dustproof construction designed for the demanding environment of RC marine operation. Its protected housing helps shield the internal electronics against water exposure under the manufacturer's specified conditions.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe integrated water-cooling system is particularly important for a 120A-class ESC. It helps transfer heat away from the electronic components during operation, supporting temperature management under sustained motor load.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe cooling pipe connections have a \u003cstrong\u003e3.0mm inner diameter and 5.5mm outer diameter\u003c\/strong\u003e. Install appropriately sized tubing, secure the connections and verify that cooling water circulates correctly before applying significant throttle.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eAlthough the ESC housing is waterproof, electrical connectors and solder joints still require attention. After operation, inspect and dry exposed plugs to reduce corrosion risk. The IP67 protection rating does not eliminate the need for maintenance, and protection may decrease with wear or damage.\u003c\/p\u003e\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/003_eaa55e14-a613-4611-bdd6-270d77847e2c.png?v=1794378025\" alt=\"Hobbywing SeaKing 120A V4 IP67 waterproof brushless marine ESC with integrated water cooling\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eSlimmer V4 Housing for Easier Installation\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eDespite its higher current rating, the SeaKing 120A V4 maintains a relatively compact housing measuring \u003cstrong\u003e64.7 × 36.3 × 22.5mm\u003c\/strong\u003e, excluding the water-cooling pipe.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eHobbywing's V4 design is approximately 10% narrower than the previous SeaKing 120A V3 generation, helping simplify installation in narrow RC boat hulls.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe slimmer construction provides more flexibility when organizing the ESC, motor, battery, receiver and cooling tubing inside a boat. At 123.5g including wires and motor connectors, the 120A V4 is also only slightly heavier than the 90A V4 despite its increased continuous current capacity and voltage range.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor boat builders upgrading from a previous-generation SeaKing ESC, the new housing dimensions should be checked against the existing mounting arrangement and water-cooling layout before installation.\u003c\/p\u003e\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/006_656b3a69-c3ed-4ae8-9d81-53be2cf08dfd.png\" alt=\"Hobbywing SeaKing 120A V4 slim 36.3mm width compared with previous SeaKing 120A V3 ESC\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003e8A Switch-Mode BEC with 6V \/ 7.4V \/ 8.4V Output\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe integrated switch-mode BEC supplies regulated power to compatible receivers and steering servos, helping simplify the electrical system without requiring a separate receiver battery in suitable installations.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 120A V4 provides an \u003cstrong\u003e8A rated BEC output with three selectable voltage settings: 6V, 7.4V and 8.4V\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe 6V setting is appropriate for compatible standard-voltage electronics. The 7.4V and 8.4V options support receivers and high-voltage servos specifically rated for these voltages.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThis flexibility is useful when building a larger RC boat that uses more demanding steering electronics. However, the voltage selection must always match the connected receiver and servo specifications, and the equipment's current requirements must remain within the supported BEC capacity.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff7fb; border-left: 4px solid #E60073; padding: 13px 16px; margin: 16px 0;\"\u003e\n\u003cstrong style=\"color: #111;\"\u003eBEC Voltage Reminder\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0;\"\u003e6V, 7.4V and 8.4V are selectable output settings, not simultaneous outputs. Never select a BEC voltage higher than the maximum rating of the connected receiver or steering servo. The published product specification lists an 8A BEC rating for the SeaKing 120A V4.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eCapacitor Overheating Protection\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 120A V4 includes dedicated \u003cstrong\u003ecapacitor overheating protection\u003c\/strong\u003e to help reduce the risk of damage caused by abnormal thermal conditions in the ESC's power components.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eUnder heavy electrical loads, excessive capacitor temperature can affect ESC reliability. The additional protection system monitors abnormal temperature conditions and responds by reducing output.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eAccording to Hobbywing's official manual, when capacitor overheating protection is triggered, the ESC reduces its power output to approximately 50%. Full output can be restored automatically after the temperature drops sufficiently.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThis protection is available on both the 90A and 120A V4 models, distinguishing them from the smaller SeaKing 30A and 60A V4 versions, which do not include dedicated capacitor overheating protection.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe protection function is an additional safeguard, not permission to exceed the ESC's current rating or operate without effective water cooling.\u003c\/p\u003e\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/008_6b73b234-3003-47e4-af48-9ec596d8413c.png?v=1794387112\" alt=\"Hobbywing SeaKing 120A V4 capacitor overheating protection for high-current RC boat power systems\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eAdjustable Freewheeling for Improved Throttle Response\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eHobbywing's Freewheeling technology helps improve motor-control efficiency, throttle linearity and ESC temperature behavior under comparable operating conditions.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eWhen Freewheeling is enabled, the boat can decelerate more quickly when the throttle is released. This can provide a different handling response when approaching turns or making precise speed adjustments.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SEAKING 120A V4 allows Freewheeling to be enabled or disabled through its programming system, giving operators flexibility to adjust throttle-release behavior according to the boat's setup and handling preferences.\u003c\/p\u003e\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/009_0b921594-b7de-4cf1-9ecb-5251394c36bf.png?v=1794378389\" alt=\"Hobbywing SeaKing 120A V4 adjustable Freewheeling function for RC boat deceleration and handling\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eAUX Channel for Real-Time Parameter Adjustment\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SEAKING 120A V4 includes an additional yellow AUX signal cable that allows selected ESC parameters to be adjusted through an available receiver channel.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eWith a properly configured transmitter, the AUX channel can be assigned to supported functions such as maximum reverse force, acceleration punch or drag brake force.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eInstead of repeatedly connecting a programming device for minor adjustments, operators can use a transmitter switch or control to change the assigned parameter. This can be convenient when fine-tuning handling characteristics during setup.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe receiver must have an available compatible channel, and the AUX function must be configured correctly. Follow the manufacturer's wiring instructions before using the yellow signal cable.\u003c\/p\u003e\n  \n      \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/010_a6c62222-06d0-41d1-8b3a-fefacb527780.png?v=1794378494\" alt=\"Hobbywing SeaKing 120A V4 AUX channel control with yellow signal wire for real-time ESC adjustment\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \n  \n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eHW LINK Data Logging and Performance Monitoring\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 120A V4 supports performance monitoring through Hobbywing's HW LINK system using a compatible external OTA Bluetooth module.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eAfter operation, recorded peak values can be accessed through the supported OTA connection. These include:\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 14px; padding-left: 22px;\"\u003e\n\u003cli\u003eMinimum battery voltage\u003c\/li\u003e\n\u003cli\u003eMaximum operating current\u003c\/li\u003e\n\u003cli\u003eMaximum motor RPM\u003c\/li\u003e\n\u003cli\u003eMaximum ESC temperature\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor real-time monitoring and historical operating graphs, the OTA module must be connected according to the manufacturer's instructions during operation.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eSupported real-time information includes throttle position, voltage, temperature and motor speed. Reviewing these readings can help operators understand how battery voltage, propeller load and operating conditions affect the performance of a 6S marine power system.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor example, comparing current and temperature behavior after a propeller change can help determine whether the revised setup places additional load on the ESC. Proper measurement and controlled testing remain important when evaluating the complete propulsion system.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Bluetooth is not built directly into the SeaKing 120A V4. An external OTA module is required for Bluetooth-based monitoring and configuration. Independent onboard recording of historical operating graphs is not supported without the appropriate OTA setup.\u003c\/p\u003e\n\n  \n      \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/007_b911d0ce-1ca8-4b68-a1a2-4209c7cf305b.png?v=1794387231\" alt=\"Hobbywing SeaKing 120A V4 ESC data logging and real-time monitoring using external OTA Bluetooth module\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eFirmware Updates and Advanced ESC Programming\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SEAKING 120A V4 supports firmware upgrades through compatible Hobbywing programming hardware and software, including supported USB LINK and HW LINK update methods.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eProgramming options include the Hobbywing LED Program Box, LCD G2, LCD Pro and OTA Programmer. Firmware updating requires suitable external programming hardware, such as a compatible LCD programming box or OTA module.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe ESC provides 11 programmable parameter categories, covering running mode, reversing behavior, battery protection, BEC voltage, motor direction, acceleration response, Freewheeling, drag brake, timing and AUX control.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThese adjustment options allow the power system to be configured according to the motor, propeller and handling requirements rather than relying entirely on factory settings.\u003c\/p\u003e\n\n  \n     \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/011_b3ec2e9b-1425-476a-8259-da2c52c1286a.png?v=1794378554\" alt=\"Hobbywing SeaKing 120A V4 firmware updates using LCD programming box or external OTA programmer\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eChoosing a 2S–6S LiPo Battery for the SeaKing 120A V4\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 120A V4 supports a wide LiPo voltage range, but the correct battery depends on the motor and propulsion system rather than the ESC alone.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eA compatible battery must provide the appropriate cell count, sufficient discharge capability, suitable dimensions and a properly rated connector. Higher-capacity or higher-discharge batteries do not automatically increase boat speed, and higher voltage must never exceed the motor's operating limits.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: separate; border-spacing: 0 8px!important; font-size: 14px; line-height: 1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39%; background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e2S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e7.4V nominal; supported with a suitable brushless marine motor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e3S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e11.1V nominal; supported with a properly matched 3S propulsion system.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e4S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e14.8V nominal; supported for compatible 4S-rated motors.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e5S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e18.5V nominal; supported where the motor and full power system are rated for 5S operation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e6S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e22.2V nominal; maximum supported LiPo cell count for this ESC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e7S \/ 8S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eNot supported by the SEAKING 120A V4.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eDoes a 6S Battery Automatically Make an RC Boat Faster?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eNot necessarily. Increasing battery voltage can raise the motor's potential operating speed, but it can also significantly increase current draw and mechanical load when the motor and propeller remain unchanged.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eA successful 6S conversion requires the correct motor KV, propeller selection, cooling capacity and battery discharge performance. The ESC's 6S compatibility does not mean every motor or boat originally designed for 4S can safely operate on 6S.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eBattery Connector and Current Capacity\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SEAKING 120A V4 is supplied without a battery input connector. Its 12AWG red and black input leads allow the installer to select a suitable connector for the battery and expected operating current.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor high-current marine systems, connector selection should consider current rating, wire gauge, solder-joint quality and operating temperature. Use properly matched connector pairs and avoid undersized connections or unsuitable adapters that could introduce excessive resistance and heat.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff7fb; border-left: 4px solid #E60073; padding: 13px 16px; margin: 16px 0;\"\u003e\n\u003cstrong style=\"color: #111;\"\u003eImportant Electrical Compatibility Note\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0;\"\u003eThe ESC's 120A continuous rating does not establish the safe continuous current of the battery, connector or motor. Every component in the electrical system must be appropriately rated. The 500A peak figure is not a connector-sizing target for continuous operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eMotor Connection\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 120A V4 uses three 12AWG motor output wires, each approximately 100mm long, terminated with 4.0mm gold female bullet connectors.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eCheck that the motor has compatible mating connectors. If motor rotation is opposite to the required direction, it can be corrected through the ESC's Motor Rotation programming setting or by exchanging any two motor phase connections while the system is disconnected from power.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eSeaKing 90A V4 vs 120A V4: Which ESC Should You Choose?\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 90A and 120A V4 share several important features, including IP67 waterproofing, an 8A adjustable BEC, capacitor overheating protection, Freewheeling and HW LINK compatibility.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe main differences are battery voltage support, current-handling capability and the recommended application range.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.6; margin: 12px 0 16px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #E60073; color: #fff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003e90A V4\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003e120A V4\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e90A\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e120A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003ePeak Current\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e360A\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e500A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eLiPo Support\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e2–4S\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e2–6S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e6\/7.4\/8.4V, 8A\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e6\/7.4\/8.4V, 8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eCapacitor Overheat Protection\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eDimensions (mm)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e60×36.3×22.5\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e64.7×36.3×22.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e115.6g\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e123.5g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e≤80cm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e≤100cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eChoose the SeaKing 90A V4\u003c\/strong\u003e when your boat operates on 2S–4S LiPo and the motor's expected continuous current remains within the 90A rating. It offers the same BEC voltage options and capacitor protection in a slightly smaller and lighter package.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eChoose the SeaKing 120A V4\u003c\/strong\u003e when your setup requires higher continuous current capacity or compatibility with 5S–6S LiPo batteries. Its increased voltage range and 120A rating make it more appropriate for compatible higher-voltage marine propulsion systems.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor additional current ratings and voltage ranges, browse our \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eProgramming and First-Time Setup\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SEAKING 120A V4 offers 11 programmable parameter categories that help configure the ESC for different brushless marine applications.\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 14px; padding-left: 22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRunning Mode:\u003c\/strong\u003e Forward Only or Forward and Reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Reverse Force:\u003c\/strong\u003e Adjust the strength of reverse operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiPo Cell Count:\u003c\/strong\u003e Automatic detection or manual 2S–6S selection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Cutoff:\u003c\/strong\u003e Configure an appropriate LiPo protection threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC Voltage:\u003c\/strong\u003e Select 6V, 7.4V or 8.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Rotation:\u003c\/strong\u003e Configure clockwise or counterclockwise rotation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePunch:\u003c\/strong\u003e Seven acceleration-response levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreewheeling:\u003c\/strong\u003e Enable or disable the function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrag Brake Force:\u003c\/strong\u003e Adjust neutral-throttle braking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Timing:\u003c\/strong\u003e Configure timing to suit the motor and operating conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX Channel Function:\u003c\/strong\u003e Assign supported real-time transmitter adjustments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eProgramming Connections\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 120A V4 supports compatible Hobbywing LED, LCD G2, LCD Pro and OTA programming equipment.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eWhen using a programming box, follow the official manual's instructions for connecting the throttle signal cable and yellow signal cable to the appropriate programming interfaces. Correct signal alignment and polarity are essential.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eWhen using the OTA Bluetooth module, follow the corresponding Y-cable instructions. The wiring arrangement for peak-value reading and the arrangement used for real-time and historical graph monitoring are described separately in the official manual.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eCompatible programming tools can be found in our \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e collection.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eFirst-Time Setup Checklist\u003c\/h3\u003e\n\u003col style=\"margin: 0 0 14px; padding-left: 22px;\"\u003e\n\u003cli\u003eConfirm the ESC, brushless motor, battery and receiver connections are correct.\u003c\/li\u003e\n\u003cli\u003eInstall and secure the water-cooling tubing.\u003c\/li\u003e\n\u003cli\u003eSet the transmitter throttle parameters to the required calibration positions.\u003c\/li\u003e\n\u003cli\u003ePerform throttle-range calibration according to the official manual.\u003c\/li\u003e\n\u003cli\u003eVerify that the detected LiPo cell count matches the connected battery.\u003c\/li\u003e\n\u003cli\u003eConfigure BEC voltage and low-voltage cutoff settings.\u003c\/li\u003e\n\u003cli\u003eSelect the appropriate running mode and motor rotation direction.\u003c\/li\u003e\n\u003cli\u003eCheck throttle operation with the propeller safely clear of people and objects.\u003c\/li\u003e\n\u003cli\u003eVerify cooling-water flow before operating at significant motor load.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eAlways disconnect the battery after use. The ESC can draw a small amount of power while connected, even when the motor is not running, potentially causing excessive battery discharge during storage.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eElectronic Protection for High-Current Marine Operation\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 120A V4 includes multiple electronic protection functions designed to respond to abnormal operating conditions.\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 14px; padding-left: 22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Protection:\u003c\/strong\u003e Helps prevent excessive LiPo battery discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC Over-Temperature Protection:\u003c\/strong\u003e Reduces output when ESC temperature becomes excessive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-Current Protection:\u003c\/strong\u003e Responds to abnormal current conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Signal Loss Protection:\u003c\/strong\u003e Helps prevent uncontrolled motor operation when the receiver signal is lost.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitor Overheating Protection:\u003c\/strong\u003e Reduces output under excessive capacitor-temperature conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThese safeguards improve operating reliability, but they cannot compensate for an unsuitable motor, an overloaded propeller, inadequate cooling or undersized electrical connections.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe 120A continuous current rating remains the key reference when evaluating sustained power-system load.\u003c\/p\u003e\n  \n\n  \n      \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/002_86ec64d3-0867-48af-9b6a-b11c61a76ca7.png?v=1794385967\" alt=\"Hobbywing SeaKing 120A V4 ESC protection against low voltage overheating overcurrent and throttle signal loss\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eOfficial Hobbywing SEAKING 120A V4 Manual\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor detailed wiring instructions, throttle calibration, programming methods, adjustable parameters, LED indicators, protection behavior and troubleshooting, refer to the official Hobbywing SEAKING V4 user manual.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca style=\"color: #e60073; text-decoration: underline; font-weight: bold;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_SEAKING_120A-90A-60A-30A_V4__Manual.pdf?v=1794375916\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Hobbywing SEAKING 120A V4 User Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #666; margin: 0 0 14px;\"\u003eThe manual also covers the SEAKING 30A, 60A and 90A V4 models. Always follow the 120A-specific specifications and connection instructions.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eExplore More Hobbywing Marine ESCs \u0026amp; Accessories\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eLooking for a different current rating or building another RC boat power system? Explore our \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e to compare marine speed controllers across the SeaKing series, or browse our \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/rc-boat-escs\"\u003eRC Boat ESC collection\u003c\/a\u003e for more electronic speed controllers designed for brushless marine applications.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor additional speed controllers and setup tools, visit our \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\"\u003eHobbywing ESC collection\u003c\/a\u003e and \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the Hobbywing SeaKing 120A V4 support 6S LiPo batteries?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. The SeaKing 120A V4 supports 2S through 6S LiPo batteries, with 6S being the maximum supported cell count. The connected motor and complete propulsion system must also be compatible with the selected voltage.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan I use the SeaKing 120A V4 with a 4S battery?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. The ESC supports 4S LiPo operation as well as 2S, 3S, 5S and 6S. It does not require a 6S battery to operate, but the motor and power system must be correctly matched to the chosen voltage.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eIs the SeaKing 120A V4 waterproof?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. It features IP67 waterproof and dustproof protection. Proper water cooling is still required, and exposed electrical connectors should be inspected and dried after use to reduce corrosion risk.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eWhat size RC boat is the SeaKing 120A V4 suitable for?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eHobbywing recommends the SeaKing 120A V4 for boats up to 100cm in length. Actual suitability depends on motor load, battery voltage, propeller selection, cooling performance and installation space.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eWhat is the difference between SeaKing 90A V4 and 120A V4?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eThe 120A V4 increases continuous current capacity from 90A to 120A and extends battery compatibility from 4S to 6S LiPo. Its peak current rating is also higher at 500A compared with 360A for the 90A model. Both offer an 8A adjustable BEC and capacitor overheating protection.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan I use the SeaKing 120A V4 in a boat smaller than 100cm?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes, provided the ESC fits physically and the electrical and cooling requirements are satisfied. The 100cm figure is Hobbywing's recommended upper boat-length guideline, not a required minimum hull length.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eWhat is the BEC output of the SeaKing 120A V4?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eThe integrated switch-mode BEC is rated at 8A and supports selectable 6V, 7.4V and 8.4V output. Choose a setting compatible with the receiver and steering servo, and check the connected equipment's current requirements.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the SeaKing 120A V4 include capacitor overheating protection?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. The ESC includes dedicated capacitor overheating protection that reduces output under excessive capacitor-temperature conditions. This protection is also available on the 90A V4 but not on the smaller 30A and 60A V4 models.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan Freewheeling be enabled or disabled?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. The SeaKing 120A V4 allows Freewheeling to be enabled or disabled through compatible programming equipment. This function can change throttle-release deceleration and motor-control behavior.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the SeaKing 120A V4 have built-in Bluetooth?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. The SeaKing 120A V4 requires a compatible external Hobbywing OTA Bluetooth module for supported HW LINK app connectivity, parameter adjustment and performance monitoring.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan the SeaKing 120A V4 record performance data?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. The ESC supports peak-value recording and real-time data monitoring. Historical operating graphs require a compatible external OTA module connected during operation. Independent built-in historical graph recording is not supported.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan I update the SeaKing 120A V4 firmware?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. Firmware upgrades are supported using compatible Hobbywing programming hardware and software. A suitable LCD programming box or external OTA module is required for the corresponding update method.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eWhich programming devices work with the SeaKing 120A V4?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eThe ESC supports compatible Hobbywing LED Program Box, LCD G2, LCD Pro and OTA programming devices. Follow the official throttle-signal and yellow-signal cable connection instructions before programming.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the SeaKing 120A V4 include a battery connector?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. The ESC is supplied with bare 12AWG battery input leads. A connector suitable for the battery and expected current must be installed. The motor output wires have 4.0mm gold female bullet connectors.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan the SeaKing 120A V4 run two brushless motors?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. The ESC is designed to control one compatible sensorless brushless motor. A single SeaKing 120A V4 should not be used to drive two brushless motors. Twin-motor boat setups require appropriately selected motor controllers.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eIs the 500A peak current rating suitable for continuous operation?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. The 500A figure is the ESC's peak current rating, not its continuous operating capacity. The rated continuous current is 120A, and actual operating load must remain within the capabilities of the complete propulsion system under appropriate cooling conditions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67944532967638,"sku":"30302363 GL","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_4799526b-b61f-4904-9043-9cfce684b760.webp?v=1794387705"},{"product_id":"hobbywing-seaking-160a-hv-v4-brushless-marine-esc","title":"Hobbywing SeaKing 160A HV V4 3-8S Brushless Marine ESC","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\u003cdiv style=\"font-family: Arial,Helvetica,sans-serif; color: #333; font-size: 15px; line-height: 1.75;\"\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe \u003cstrong\u003eHobbywing SeaKing 160A HV V4 Brushless Marine ESC\u003c\/strong\u003e is a high-current, water-cooled electronic speed controller designed for RC boats operating on 3S to 8S LiPo batteries. Delivering 160A continuous current with an 800A peak rating, it combines IP67 waterproof protection, dual-channel water cooling and advanced motor control for demanding brushless marine power systems.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px;\"\u003eUnlike the smaller SeaKing 30A–120A V4 models, the \u003cstrong\u003eSeaKing 160A V4 ESC\u003c\/strong\u003e features Bluetooth integrated into its power switch, allowing direct connection to the Hobbywing HW LINK V2 mobile app without a separate OTA module. Built-in historical data logging, an adjustable 8A BEC, capacitor overheating protection and configurable Freewheeling provide additional control when building or upgrading a high-performance RC boat.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff7fb; border-left: 4px solid #E60073; padding: 14px 16px; margin: 18px 0;\"\u003e\n\u003cstrong style=\"color: #111;\"\u003eQuick Fit Check\u003c\/strong\u003e\n\u003cul style=\"margin: 8px 0 0; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Brushless RC boats up to 120cm in length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 3S–8S LiPo (11.1V–29.6V nominal).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e Single compatible sensorless brushless marine motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 160A continuous \/ 800A peak.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e Adjustable 6V \/ 7.4V \/ 8.4V, rated at 8A continuous.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e Dual-channel water cooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Connectors:\u003c\/strong\u003e 6.5mm gold female bullet connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Connector:\u003c\/strong\u003e Not preinstalled; soldering required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgramming:\u003c\/strong\u003e Built-in Bluetooth with HW LINK V2 app.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 13px; line-height: 1.65; margin: 9px 0 0; color: #666;\"\u003eThe 120cm boat-length recommendation is a manufacturer guideline, not a universal fit guarantee. Check motor voltage and current requirements, propeller load, cooling capacity, electrical connectors and installation space before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eHobbywing SeaKing 160A HV V4 Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: separate; border-spacing: 0 8px!important; font-size: 14px; line-height: 1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39%; background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBrand \/ Series\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eHobbywing SeaKing V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSeaKing 160A HV V4 \/ SeaKing 160A V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eProduct Number \/ SKU\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e30206200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eBrushless \/ Sensorless \/ Marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e160A \/ 800A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e3–8S LiPo (11.1–29.6V nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSwitch-mode, 6V \/ 7.4V \/ 8.4V adjustable, 8A continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBEC Instantaneous Current\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e25A maximum instantaneous (manufacturer rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eCooling System\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eDual-channel water cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eCooling Pipe Diameter\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e3.0mm inner \/ 5.5mm outer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e91 × 41 × 25.5mm (excluding water-cooling pipes and mounting holes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e220g (including wires and motor output connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBattery Input Wires\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eRed 10AWG × 160mm \/ Black 10AWG × 160mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eMotor Output Wires\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e3 × black 12AWG, 150mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBattery Input Connector\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eNone; connector installation required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eMotor Output Connectors\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e6.5mm gold female bullet connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eBluetooth\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eBuilt into ESC power switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eProgramming Method\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eHW LINK V2 smartphone app via built-in Bluetooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eExternal Program Boxes \/ OTA\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eLED, LCD G2, LCD Pro and separate OTA Programmer not supported for normal programming\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eData Logging\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003ePeak values, real-time data and built-in historical graphs supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eFirmware Upgrade\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSupported through HW LINK V2 app\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eFreewheeling\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSupported; enable \/ disable selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eCapacitor Overheating Protection\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e≤120cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eKey Features of the SeaKing 160A HV V4\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 20px 0 8px;\"\u003e160A Continuous Power for 3S–8S Brushless Marine Systems\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 is designed for higher-current marine propulsion systems requiring more power capacity than the standard SeaKing 120A V4. It provides \u003cstrong\u003e160A continuous current and an 800A peak rating\u003c\/strong\u003e, with support for 3S through 8S LiPo batteries.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe expanded 8S voltage range makes this ESC suitable for compatible high-voltage brushless marine setups. An 8S LiPo battery has a nominal voltage of 29.6V, compared with 22.2V for 6S, allowing different motor-speed and power configurations when the entire system is correctly matched.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eHigher voltage and current capacity are particularly valuable in performance-oriented RC boats, but the actual motor load still depends on motor KV, propeller diameter, pitch, hull resistance and operating conditions. A 160A ESC does not make an oversized propeller or an incompatible motor safe to use.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe 800A figure is a peak rating, not a sustainable operating current. Continuous motor demand must remain within the ESC's 160A rating under suitable cooling conditions.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eBuilt-in Bluetooth: Direct HW LINK V2 App Connection\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eA major difference between the SeaKing 160A V4 and the smaller SeaKing V4 models is its \u003cstrong\u003eintegrated Bluetooth module\u003c\/strong\u003e. The Bluetooth hardware is built into the ESC's power switch, allowing direct connection to a compatible smartphone running the Hobbywing HW LINK V2 app.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eNo separate OTA Bluetooth module is required for normal app-based parameter programming, data reading or firmware updates. Once the ESC is powered on, the operator can pair with the ESC through the app and access supported configuration functions.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe app allows adjustments to running mode, motor timing, BEC voltage, Freewheeling, acceleration response and other programmable settings. Firmware updates can also be installed through the supported app workflow.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eHobbywing specifies an effective Bluetooth communication distance of approximately 5 meters. Treat this as a short-range setup and diagnostic interface rather than a long-range telemetry connection for a boat operating far from shore.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff7fb; border-left: 4px solid #E60073; padding: 13px 16px; margin: 16px 0;\"\u003e\n\u003cstrong style=\"color: #111;\"\u003eProgramming Compatibility\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0;\"\u003eUnlike the SeaKing 120A V4, the 160A V4 is programmed primarily through its built-in Bluetooth connection and the HW LINK V2 app. Hobbywing lists conventional LED\/LCD programming boxes and the separate OTA Programmer as unsupported for this model. Keep the original Bluetooth-integrated switch connected and follow the official app instructions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/01_251e923b-0633-4cab-b3a6-7ee4b4486a87.png\" alt=\"Hobbywing SeaKing 160A HV V4 ESC built-in Bluetooth power switch connecting directly to HW LINK V2 app\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eBuilt-in Historical Data Logging and Performance Monitoring\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 supports integrated performance data logging, allowing users to review operating information through the HW LINK V2 smartphone app without installing an external OTA recorder.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eAvailable monitoring functions include peak-value recording, real-time operating data and onboard historical data that can be displayed as graphs through the app.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThese functions help operators understand how their marine power system responds to different loads and operating conditions. Recorded information can be useful when comparing propeller setups, reviewing battery voltage behavior or checking whether ESC operating temperatures remain reasonable.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe system also supports viewing parameters such as throttle position, operating voltage, current, motor speed and temperature through the supported app interface.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eUnlike the smaller SeaKing 120A V4, the 160A V4 supports built-in historical graph recording. The independent external OTA historical-recording method used by some smaller SeaKing models is not required or supported here.\u003c\/p\u003e\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/2_52de3e25-400a-4a6f-9bce-55bb06295079.png?v=1794466459\" alt=\"Hobbywing SeaKing 160A V4 built-in data logging with historical graphs and HW LINK V2 performance monitoring\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eDual-Channel Water Cooling for High-Current Operation\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eEffective heat management becomes increasingly important as motor current and operating load increase. The SeaKing 160A V4 features a \u003cstrong\u003edual-channel water-cooling system\u003c\/strong\u003e designed to improve heat transfer from the ESC during marine operation.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe cooling arrangement uses two water-cooling channels within the ESC housing, supporting more effective heat dissipation when a compatible water circulation system is installed.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe water-cooling connections have a 3.0mm inner diameter and a 5.5mm outer diameter. Choose compatible tubing, secure the hose connections with suitable clamps or ties, and ensure water can flow through the cooling circuit without obstruction.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eA correctly installed cooling system is essential for sustained operation under high load. Dual-channel cooling improves heat-management capability, but it does not eliminate the need to keep motor current within the ESC's continuous rating.\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/05_456af575-0506-4620-8ef6-5e84e3e31049.png?v=1794466586\" alt=\"Hobbywing SeaKing 160A HV V4 dual-channel water cooling system for high-current RC boat ESC operation\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eIP67 Waterproof and Dustproof Protection\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 uses an IP67-rated waterproof and dustproof design to protect its electronics in the wet operating environment of RC boats.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eHobbywing specifies that the waterproof rating has been tested under controlled laboratory conditions in accordance with applicable IP protection standards. The protection is designed for normal marine use, but it is not permanent and may decrease with wear, damage and aging.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eWaterproof construction does not remove the need to maintain exposed electrical plugs, the power switch or cooling-hose connections. After use, inspect the wiring and dry wet connectors to reduce the risk of corrosion.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor reliable operation, combine waterproof protection with secure wiring, correct battery polarity and a properly maintained cooling circuit.\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-img\"\u003e\n \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/03_42d8414f-a06e-4822-b169-978af5863da2.png?v=1794466723\" alt=\"Hobbywing SeaKing 160A HV V4 IP67 waterproof and dustproof brushless marine ESC\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \n \n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003e15% Narrower Than the Previous SeaKing 180A V3\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 features a streamlined, elongated housing measuring 91 × 41 × 25.5mm, excluding its water-cooling pipe connections and mounting holes.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eAccording to Hobbywing, the V4 design is approximately \u003cstrong\u003e15% narrower, or 7mm slimmer, than the previous SeaKing 180A V3\u003c\/strong\u003e. This reduced width can make installation easier inside narrow boat hulls where the motor, batteries, receiver and water-cooling tubing compete for space.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe ESC weighs approximately 220g including its wires and motor connectors. Although larger and heavier than the SeaKing 120A V4, the 160A model provides additional current-handling capacity, 8S voltage support and integrated Bluetooth functionality.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eCheck the complete installation space before replacing an older ESC. In addition to the body dimensions, allow room for mounting hardware, cooling connections, power wires and the Bluetooth-integrated switch.\u003c\/p\u003e\n  \n\n  \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/06_13189bbb-8e3b-4893-9585-c0256e705780.png?v=1794466976\" alt=\"Hobbywing SeaKing 160A V4 41mm width compared with older SeaKing 180A V3 48mm width\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003ePowerful 8A BEC with Three Selectable Voltages\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe built-in switch-mode BEC supplies regulated power to compatible receivers and steering servos. Its rated continuous output current is \u003cstrong\u003e8A\u003c\/strong\u003e, with selectable output voltages of 6V, 7.4V and 8.4V.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe manufacturer also specifies a maximum instantaneous BEC current of 25A. This is a short-duration rating and must not be confused with the 8A continuous BEC capacity.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe 6V setting is suitable for compatible standard-voltage electronics. The 7.4V and 8.4V options can be selected for receivers and high-voltage steering servos specifically rated for those voltages.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor larger boats using demanding steering systems, these voltage options provide useful configuration flexibility. Always verify the connected receiver and servo ratings before changing the BEC output.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff7fb; border-left: 4px solid #E60073; padding: 13px 16px; margin: 16px 0;\"\u003e\n\u003cstrong style=\"color: #111;\"\u003eBEC Safety Reminder\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0;\"\u003e6V, 7.4V and 8.4V are selectable outputs, not simultaneous outputs. Never select a BEC voltage above the maximum supported voltage of the receiver or servo. The continuous BEC rating is 8A, while the separately advertised 25A figure refers to instantaneous current.\u003c\/p\u003e\n\u003c\/div\u003e\n\n    \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/04_68985617-e334-44ed-8401-07792390a992.png?v=1794467055\" alt=\"Hobbywing SeaKing 160A HV V4 adjustable 8A continuous BEC with 6V 7.4V and 8.4V output\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eCapacitor Overheating Protection\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eHigh-current operation can place considerable thermal stress on an ESC's power components. The SeaKing 160A V4 includes dedicated capacitor overheating protection to reduce the risk of damage under abnormal capacitor-temperature conditions.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eAccording to the official user manual, when capacitor overheating protection is triggered, the ESC reduces output to approximately 50%. Full output can be restored automatically after the temperature falls to a suitable level.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe function adds an important safeguard alongside the ESC's other electronic protection features, but it cannot compensate for an overloaded motor, poor electrical connections or inadequate cooling.\u003c\/p\u003e\n  \n  \n    \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/07_58ccefc4-6b0e-404c-b2ed-d718e996b8b1.png\" alt=\"Hobbywing SeaKing 160A V4 capacitor overheating protection for high-current brushless marine systems\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e  \n  \n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eAdjustable Freewheeling for Throttle and Deceleration Control\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eHobbywing's Freewheeling function is designed to improve motor-control efficiency, throttle linearity and heat management under comparable operating conditions.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eWhen enabled, the function can help the boat decelerate faster after the throttle is released, providing a different handling response when approaching turns or adjusting speed.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 allows Freewheeling to be enabled or disabled through the HW LINK V2 app. Operators can compare the response of both settings and select the behavior that best suits the boat's motor, propeller and handling characteristics.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eUnlike the SeaKing 300A HV V4, which operates with Freewheeling permanently enabled, the 160A model retains the selectable setting.\u003c\/p\u003e\n\n  \n      \u003cdiv class=\"cnhl-img\"\u003e\n \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/08_ebe6e548-ee70-427f-9e85-524271593d86.png\" alt=\"Hobbywing SeaKing 160A V4 selectable Freewheeling function for RC boat throttle response and deceleration\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e  \n  \n  \n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eAUX Channel for Real-Time Transmitter Adjustments\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe additional yellow AUX signal cable allows selected ESC parameters to be adjusted through an available receiver channel and a compatible transmitter.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe default AUX assignment is maximum reverse force. Through the HW LINK V2 app, the AUX function can also be assigned to supported parameters such as punch or drag brake force.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eOnce correctly configured, the assigned parameter can be changed using a transmitter switch or control without repeatedly connecting the smartphone to modify every setting.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe receiver must have a suitable unused channel, and the transmitter must be configured appropriately. Follow the manufacturer's connection instructions for the yellow signal cable.\u003c\/p\u003e\n\n  \n        \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/09_616026e6-6f97-4b50-92de-cb622a5cf888.png\" alt=\"Hobbywing SeaKing 160A HV V4 AUX yellow signal wire for real-time reverse punch and drag brake adjustment\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e  \n  \n  \n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eBattery, Motor and Connector Compatibility\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 supports 3S through 8S LiPo batteries and is designed to control one compatible sensorless brushless marine motor. The correct battery depends on the motor's voltage rating, expected operating current, propeller load and the complete boat configuration.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: separate; border-spacing: 0 8px!important; font-size: 14px; line-height: 1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 39%; background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e2S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eNot supported; below the manufacturer's minimum input voltage range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e3S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e11.1V nominal; supported with a suitably matched motor and power system.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e4S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e14.8V nominal; supported with compatible brushless marine equipment.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e5S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e18.5V nominal; supported when the complete propulsion system is appropriately rated.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e6S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e22.2V nominal; supported for compatible 6S brushless marine systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e7S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e25.9V nominal; supported with a suitably rated motor and power system.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e8S LiPo\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003e29.6V nominal; maximum supported cell count for the SeaKing 160A V4.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #E60073; color: #fff; padding: 10px 12px; font-weight: bold;\"\u003e9S LiPo or Higher\u003c\/td\u003e\n\u003ctd style=\"background: #f2f2f2; padding: 10px 12px;\"\u003eNot supported by this ESC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eCan You Upgrade a 6S RC Boat to 8S?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 supports both 6S and 8S LiPo operation, but ESC compatibility alone does not make an existing 6S boat suitable for 8S.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eIncreasing battery voltage can raise motor speed and power demand, especially when using the same motor KV and propeller. Before converting to 8S, verify the motor's maximum voltage, expected current draw, propeller load, battery capacity, cooling system and drivetrain requirements.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor a reliable high-voltage setup, select components as a complete propulsion system rather than treating the ESC as an isolated upgrade.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eBattery Input Connector: Installation Required\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 is supplied with 10AWG battery input leads but no preinstalled battery connector.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe installer must select and solder an appropriately rated connector that matches the battery and expected current load. Pay particular attention to connector current capacity, contact quality, soldering and insulation.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eAvoid using undersized connectors or adapters that could introduce excessive resistance and heat under high-current operation. The safe operating current of the complete electrical system is limited by its least capable component.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff7fb; border-left: 4px solid #E60073; padding: 13px 16px; margin: 16px 0;\"\u003e\n\u003cstrong style=\"color: #111;\"\u003eHigh-Current Connection Reminder\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0;\"\u003eThe ESC's 160A continuous rating does not automatically establish the safe current of the battery, connector or motor. Select all power-system components for the actual sustained current and thermal conditions. The 800A peak rating must not be treated as a continuous operating target.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003e6.5mm Bullet Motor Connections\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 uses three 12AWG motor output wires, each approximately 150mm long, terminated with \u003cstrong\u003e6.5mm gold female bullet connectors\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eEnsure the motor has compatible mating bullet connectors. If it does not, appropriately rated connectors must be installed before use.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eMotor rotation direction can be changed through the ESC's Motor Rotation setting or by exchanging any two motor phase wires while the system is completely disconnected from power.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eSeaKing 120A V4 vs 160A V4 vs 200A HV V4\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 sits between the 120A V4 and the higher-voltage SeaKing 200A HV V4, but the differences extend beyond current ratings. Battery voltage support and programming architecture are especially important when choosing between these models.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.6; margin: 12px 0 16px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #E60073; color: #fff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003e120A V4\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003e160A V4\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003e200A HV V4\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e120A\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e160A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003ePeak Current\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e500A\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e800A\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e1000A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eLiPo Support\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e2–6S\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e3–8S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e5–14S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e6\/7.4\/8.4V, 8A\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e6\/7.4\/8.4V, 8A\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e6\/7.4\/8.4V, 8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eBluetooth\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eExternal OTA\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBuilt-in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eHistorical Graphs\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eExternal OTA\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBuilt-in\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eMotor Bullet Connectors\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e4.0mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e6.5mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eModel-specific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eDimensions (mm)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e64.7×36.3×22.5\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e91×41×25.5\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e106×51×31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e123.5g\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e220g\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e386g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e≤100cm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e≤120cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px; border: 1px solid #ddd;\"\u003e≤140cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eChoose the SeaKing 120A V4\u003c\/strong\u003e for a compatible 2S–6S boat requiring up to 120A continuous current and a smaller, lighter ESC. It also supports conventional compatible Hobbywing programming devices and an external OTA module.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eChoose the SeaKing 160A V4\u003c\/strong\u003e when your setup requires 3S–8S support, 160A continuous current, larger motor connectors and direct Bluetooth programming with onboard historical data logging.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003cstrong\u003eChoose the SeaKing 200A HV V4\u003c\/strong\u003e for compatible higher-current or 9S–14S marine power systems. Note that its supported LiPo range starts at 5S, so it is not a direct substitute for every lower-voltage configuration.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eBrowse more current ratings and voltage ranges in our \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eHW LINK V2 Programming and First-Time Setup\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 provides 11 programmable parameter categories through the HW LINK V2 app. These allow the ESC to be configured for the motor, battery and handling requirements of the boat.\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 14px; padding-left: 22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRunning Mode:\u003c\/strong\u003e Forward Only or Forward and Reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Reverse Force:\u003c\/strong\u003e 25%, 50%, 75% or 100%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiPo Cell Count:\u003c\/strong\u003e Automatic detection or manual 3S–8S selection for this model.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Cutoff:\u003c\/strong\u003e Adjustable battery protection threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC Voltage:\u003c\/strong\u003e Select 6V, 7.4V or 8.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Rotation:\u003c\/strong\u003e Clockwise or counterclockwise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePunch:\u003c\/strong\u003e Seven acceleration-response levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreewheeling:\u003c\/strong\u003e Enable or disable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrag Brake Force:\u003c\/strong\u003e Adjustable neutral-throttle braking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Timing:\u003c\/strong\u003e Adjustable from 10° to 30°.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX Channel Function:\u003c\/strong\u003e Assign selected parameters for transmitter-based adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eHow to Connect the ESC to HW LINK V2\u003c\/h3\u003e\n\u003col style=\"margin: 0 0 14px; padding-left: 22px;\"\u003e\n\u003cli\u003eInstall Hobbywing's official HW LINK V2 app on a compatible smartphone.\u003c\/li\u003e\n\u003cli\u003eConnect a suitable LiPo battery to the ESC and turn on its integrated power switch.\u003c\/li\u003e\n\u003cli\u003eOpen the app and select Bluetooth as the connection method.\u003c\/li\u003e\n\u003cli\u003eChoose the SeaKing ESC from the available Bluetooth devices.\u003c\/li\u003e\n\u003cli\u003eOpen the Parameters section to view and adjust the supported settings.\u003c\/li\u003e\n\u003cli\u003eSave the changes and disconnect the Bluetooth connection when finished.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe Bluetooth module is integrated into the ESC's switch and normally operates over a short distance of approximately 5 meters. Make configuration changes with the boat secured and the propeller unable to cause injury.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eFirmware Updates and Factory Reset\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eWith the ESC connected to the app, the Firmware Update section allows the user to select an available firmware version and perform the supported update procedure.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe app also supports resetting ESC parameters to factory defaults. After a factory reset, throttle-range calibration must be performed again before operating the boat.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eIf Bluetooth pairing information needs to be restored, the official manual provides a switch-button procedure for resetting the factory Bluetooth name and password. Follow the documented sequence rather than attempting an unsupported programming-box connection.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 17px; font-weight: bold; color: #111; margin: 22px 0 8px;\"\u003eThrottle Calibration Before the First Run\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThrottle calibration is required during initial setup and whenever a new transmitter or receiver is installed. Hobbywing recommends configuring the radio's fail-safe behavior so that loss of the throttle signal stops motor output.\u003c\/p\u003e\n\u003col style=\"margin: 0 0 14px; padding-left: 22px;\"\u003e\n\u003cli\u003eCheck that throttle travel settings and trim are correctly configured on the transmitter.\u003c\/li\u003e\n\u003cli\u003eWith the ESC connected to the battery but switched off, move the throttle to full forward.\u003c\/li\u003e\n\u003cli\u003eSwitch on the ESC while holding full throttle.\u003c\/li\u003e\n\u003cli\u003eAfter approximately four seconds, two motor beeps confirm the full-throttle position.\u003c\/li\u003e\n\u003cli\u003eFor a pistol-type transmitter, release the trigger to neutral and wait for the long confirmation beep.\u003c\/li\u003e\n\u003cli\u003eFor a stick-type transmitter, follow the manual's specific neutral or full-travel calibration procedure.\u003c\/li\u003e\n\u003cli\u003eVerify the correct battery cell-count indication before operating the motor.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eKeep the propeller clear of people and objects during calibration and bench testing. Disconnect the battery after use rather than relying on the power switch alone for long-term storage.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eElectronic Protection for High-Current Marine Operation\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe SeaKing 160A V4 incorporates multiple electronic safeguards intended to respond to abnormal operating conditions.\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 14px; padding-left: 22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Protection:\u003c\/strong\u003e Responds when battery voltage drops below the selected cutoff threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC Over-Temperature Protection:\u003c\/strong\u003e Reduces power when the ESC becomes excessively hot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-Current Protection:\u003c\/strong\u003e Cuts output when abnormal current is detected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitor Overheating Protection:\u003c\/strong\u003e Reduces output under excessive capacitor-temperature conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Signal Loss Protection:\u003c\/strong\u003e Helps prevent uncontrolled operation when the receiver signal is unavailable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThe official manual also describes status-light patterns that help identify protection events. For example, the red LED signals low-voltage protection, while blue LED flash patterns indicate different temperature or current-related protection states.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eThese protections improve operating safety but do not replace correct component selection, secure electrical connections or effective cooling.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eOfficial Hobbywing SeaKing 160A V4 Manual\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eFor detailed wiring diagrams, throttle calibration, Bluetooth pairing, HW LINK V2 programming, data logging, protection behavior and troubleshooting, consult the official Hobbywing SeaKing V4 user manual.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003e\u003ca style=\"color: #e60073; text-decoration: underline; font-weight: bold;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_SEAKING_300A-200A-160A_HV_V4__Manual.pdf?v=1794465378\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Hobbywing SeaKing 160A HV V4 User Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #666; margin: 0 0 14px;\"\u003eThis manual also covers the SeaKing 200A HV V4 and 300A HV V4 models. Their voltage ranges, Freewheeling options and programming connections may differ. Always follow the 160A-specific specifications.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eExplore More Hobbywing Marine ESCs\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eChoosing an ESC for another RC boat or comparing different current ratings? Browse our \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e for additional SeaKing models, including compact 2S–3S controllers and high-voltage marine ESCs.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px;\"\u003eYou can also explore our \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/rc-boat-escs\"\u003eRC Boat ESC collection\u003c\/a\u003e for more marine electronic speed controllers, or visit the \u003ca style=\"color: #e60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\"\u003eHobbywing ESC collection\u003c\/a\u003e to browse controllers for other RC applications.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: bold; color: #111; margin: 30px 0 12px; border-bottom: 1px solid #eee; padding-bottom: 8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the Hobbywing SeaKing 160A V4 support 8S LiPo batteries?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. The SeaKing 160A V4 supports 3S through 8S LiPo batteries, with 8S being the maximum supported cell count. The connected motor and complete power system must also be rated for the selected battery voltage.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan I use a 2S LiPo battery with the SeaKing 160A V4?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. Hobbywing specifies a minimum input of 3S LiPo for this model. A 2S battery falls below the supported input-voltage range.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the SeaKing 160A V4 have built-in Bluetooth?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. Bluetooth is integrated into the ESC's power switch. Users can connect directly to the HW LINK V2 app for supported programming, data monitoring and firmware updates without purchasing a separate OTA module.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the SeaKing 160A V4 need an OTA Programmer or LCD programming box?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. Its normal programming and firmware-update workflow uses built-in Bluetooth and the HW LINK V2 mobile app. Hobbywing lists conventional LED\/LCD programming boxes and the separate OTA Programmer as unsupported for this model.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan the SeaKing 160A V4 record historical operating data?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. It supports built-in historical data recording, as well as peak-value recording and real-time data monitoring. Recorded information and historical graphs can be viewed through the supported HW LINK V2 app interface.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eHow far does the built-in Bluetooth connection work?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eHobbywing states that the effective Bluetooth communication distance is approximately 5 meters. It is intended for nearby configuration and diagnostics rather than long-range communication while the boat is operating far away.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eIs the SeaKing 160A HV V4 waterproof?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. It features IP67 waterproof and dustproof protection. The water-cooling system must still be installed correctly, and exposed electrical connectors should be inspected and dried after use.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the SeaKing 160A V4 have dual-channel water cooling?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. Its dual-channel water-cooling system is designed to improve heat dissipation during marine operation. The cooling connections have a 3.0mm inner diameter and a 5.5mm outer diameter.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eWhat size RC boat is the SeaKing 160A V4 recommended for?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eHobbywing recommends the SeaKing 160A V4 for boats up to 120cm long. Actual suitability depends on motor current demand, propeller load, water-cooling performance and installation space.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eWhat is the difference between the SeaKing 120A V4 and 160A V4?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eThe 160A V4 increases continuous current capacity from 120A to 160A and extends battery support from 6S to 8S. It also provides built-in Bluetooth, onboard historical data graphs, dual-channel water cooling and larger 6.5mm motor connectors. The 120A V4 is smaller and supports 2S batteries, whereas the 160A V4 starts at 3S.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eWhat is the BEC rating of the SeaKing 160A V4?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eIts switch-mode BEC provides selectable 6V, 7.4V and 8.4V output with an 8A continuous rating. Hobbywing additionally specifies a maximum instantaneous current of 25A. The selected voltage must be compatible with the receiver and steering servo.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the SeaKing 160A V4 include capacitor overheating protection?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. The ESC includes capacitor overheating protection that reduces motor output when an abnormal capacitor-temperature condition is detected. Full output can return after the temperature falls sufficiently.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan I disable Freewheeling on the SeaKing 160A V4?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eYes. Freewheeling can be enabled or disabled through HW LINK V2. This differs from the SeaKing 300A HV V4, for which the official manual specifies that the Disabled option is unavailable.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eDoes the SeaKing 160A V4 include a battery connector?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. Its 10AWG battery input leads are supplied without a preinstalled connector. Install a suitable connector matched to the battery, wiring and expected operating current.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eWhat motor connectors are fitted to the SeaKing 160A V4?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eThe three 12AWG motor output leads are equipped with 6.5mm gold female bullet connectors. The motor must have compatible mating connectors or suitably rated alternatives must be installed.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eCan I use one SeaKing 160A V4 ESC to run two brushless motors?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. The ESC is designed to control one compatible sensorless brushless motor. Twin-motor installations require appropriately selected individual motor controllers.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #111; margin: 18px 0 6px;\"\u003eIs the 800A peak rating suitable for continuous operation?\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 12px;\"\u003eNo. The 800A figure is the published peak current rating. The continuous current rating is 160A, and the complete propulsion system must operate within suitable electrical and thermal limits.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67944656470230,"sku":"30206200 GL","price":115.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_7c5e0770-a734-4dae-a35e-667a13256c48.webp?v=1794465691"},{"product_id":"hobbywing-seaking-200a-hv-v4-brushless-marine-esc","title":"Hobbywing SeaKing 200A HV V4 5-14S Brushless Marine ESC","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\n\n\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;color:#333;font-size:15px;line-height:1.75;\"\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe \u003cstrong\u003eHobbywing SeaKing 200A HV V4 Brushless Marine ESC\u003c\/strong\u003e is a high-voltage, water-cooled electronic speed controller designed for demanding RC boat power systems. Supporting \u003cstrong\u003e5S–14S LiPo batteries\u003c\/strong\u003e, it delivers 200A continuous current and a 1000A peak rating, making it a powerful option for compatible high-current brushless marine applications.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 16px;\"\u003eBuilt for more than raw power, the SeaKing 200A HV V4 combines IP67 waterproof protection, dual-channel water cooling, an integrated spark-proof circuit, built-in Bluetooth programming and onboard performance data logging. Its adjustable 8A BEC, Freewheeling function and AUX transmitter control provide additional flexibility for configuring and monitoring a high-performance RC boat.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:14px 16px;margin:18px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eQuick Fit Check\u003c\/strong\u003e\n\u003cul style=\"margin:8px 0 0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e High-performance brushless RC boats up to 140cm long.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 5S–14S LiPo (18.5V–51.8V nominal).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e One compatible sensorless brushless marine motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 200A continuous \/ 1000A peak.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e 6V \/ 7.4V \/ 8.4V selectable, 8A continuous.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e Dual-channel water cooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e IP67 waterproofing and built-in spark-proof circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgramming:\u003c\/strong\u003e Built-in Bluetooth with Hobbywing HW LINK V2 app.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Connector:\u003c\/strong\u003e Not preinstalled; suitable high-current connector required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Connectors:\u003c\/strong\u003e 6.5mm gold female bullet connectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 106 × 51 × 31mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size:13px;color:#666;margin:9px 0 0;\"\u003eThe manufacturer's boat-length recommendation is a general application guideline. Confirm motor voltage, current draw, propeller load, cooling, battery capacity, connector ratings and installation space before operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eHobbywing SeaKing 200A HV V4 Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:39%;background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBrand \/ Series\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eHobbywing SeaKing V4 HV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSeaKing 200A HV V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eProduct Number \/ SKU\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e30301201\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eBrushless \/ Sensorless \/ Marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003ePeak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e1000A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eSupported Battery\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e5S–14S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e18.5V–51.8V nominal (5S–14S LiPo)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSwitch-mode, 6V \/ 7.4V \/ 8.4V, 8A continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCooling System\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eDual-channel water cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWater-Cooling Pipe\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e3.0mm inner \/ 5.5mm outer diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e106 × 51 × 31mm (excluding cooling pipes and mounting holes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e386g (including wires and output connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Input Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eRed 8AWG × 200mm \/ Black 8AWG × 200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Output Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e3 × Black 10AWG, 150mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBattery Input Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNone (requires installation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eMotor Output Connectors\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e6.5mm gold female bullet connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eBluetooth\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eBuilt into ESC power switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eProgramming Method\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eHW LINK V2 smartphone app via integrated Bluetooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eLED \/ LCD Program Boxes\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eExternal OTA Programmer\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported; built-in Bluetooth provided\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eData Recording\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003ePeak values, real-time data and built-in historical graphs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eHistorical Logging\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eUp to 10 minutes of operation (manufacturer specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eFirmware Updates\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported through HW LINK V2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eSpark-Proof Circuit\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eBuilt-in (manufacturer highlights 6S–14S connection use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eFreewheeling\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported \/ Enable or Disable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eAUX Control\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eReal-time transmitter adjustment via yellow signal wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eCapacitor Overheating Protection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e≤140cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eKey Features of the SeaKing 200A HV V4 Marine ESC\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003e14S High-Voltage Power with 200A Continuous Current\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe Hobbywing SeaKing 200A HV V4 is engineered for high-voltage marine applications where the motor, propeller and battery system demand substantial current-handling capacity.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWith support for \u003cstrong\u003e5S through 14S LiPo\u003c\/strong\u003e, the ESC can operate across a wide range of compatible high-voltage configurations. A 14S LiPo system provides 51.8V nominal voltage and reaches 58.8V when fully charged at 4.20V per cell.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eIts 200A continuous rating provides greater current capacity than the SeaKing 160A V4, while the published 1000A peak rating accommodates short-duration current demands within the manufacturer's operating conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis combination is suitable for appropriately matched, high-power brushless marine propulsion systems, particularly where acceleration response, high operating load and sustained power delivery are important.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:13px 16px;margin:16px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eImportant: 200A Continuous vs. 1000A Peak\u003c\/strong\u003e\n\u003cp style=\"margin:6px 0 0;\"\u003eThe 1000A figure is a peak current rating, not the allowable continuous operating current. Motor load, propeller selection, battery discharge capability, connectors and cooling must be matched to the ESC's 200A continuous rating and the complete power system.\u003c\/p\u003e\n\u003c\/div\u003e\n\n  \n  \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/01_0c1c9754-4b5e-463c-bac3-6b4060601cad.png\" alt=\"Hobbywing SeaKing 200A HV V4 5-14S brushless marine ESC with 200A continuous current\"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n\n  \n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eIP67 Waterproof Protection for RC Boat Applications\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 features an IP67-rated waterproof and dustproof enclosure designed for the wet environments associated with RC boating.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe IP67 protection helps protect the ESC's internal electronics against water and dust under specified conditions, reducing the need for additional waterproof treatment to the ESC housing before normal use.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe rating is based on controlled laboratory testing, and protection may decrease with wear, aging or damage. Exposed electrical connections, power leads and water-cooling connections still require inspection and maintenance.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAfter boating, dry any wet electrical plugs and inspect the ESC for contamination, corrosion or loose connections before the next run.\u003c\/p\u003e\n\n\n  \n    \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/03_42fb7c6f-038a-4be9-a62b-aabef67ad9f2.png?v=1794469084\" alt=\"Hobbywing SeaKing 200A HV V4 IP67 waterproof and dustproof high-voltage marine ESC\"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eIntegrated Bluetooth for Direct HW LINK V2 App Programming\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 includes an integrated Bluetooth module built directly into its power switch. This allows the ESC to communicate with the Hobbywing HW LINK V2 mobile app without a separate OTA Bluetooth programmer.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThrough the app, users can access supported ESC settings, read operating data and install firmware updates using a compatible smartphone.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe integrated design simplifies setup compared with systems requiring an additional programming device. It is particularly useful when adjusting throttle behavior, BEC voltage, motor timing or other parameters while preparing a boat for different running conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe manufacturer specifies an effective Bluetooth communication distance of approximately 5 meters. The connection is intended for nearby setup, configuration and diagnostics rather than long-range telemetry from a moving boat.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:13px 16px;margin:16px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eProgramming Device Compatibility\u003c\/strong\u003e\n\u003cp style=\"margin:6px 0 0;\"\u003eThe SeaKing 200A HV V4 uses built-in Bluetooth and the HW LINK V2 app for normal programming. Hobbywing lists the conventional LED Program Box, LCD G2, LCD Pro and external OTA Programmer as unsupported for this model.\u003c\/p\u003e\n\u003c\/div\u003e\n\n  \n      \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/04_eef324ad-f6d3-4638-aa65-9d9a06a8f195.png?v=1794469144\" alt=\"Hobbywing SeaKing 200A HV V4 built-in Bluetooth with direct HW LINK V2 mobile app connection\"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n  \n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eBuilt-in Data Logging with Historical Performance Graphs\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eHigh-performance marine setups benefit from more than throttle adjustment alone. The SeaKing 200A HV V4 incorporates onboard data logging that allows operators to review operating conditions through the HW LINK V2 app.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAccording to Hobbywing, the integrated recording system can store approximately \u003cstrong\u003e10 minutes of operating data\u003c\/strong\u003e. Historical information can be reviewed through graphical displays after operation.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe supported data functions include peak-value recording, real-time monitoring and built-in historical graph recording. Available operating information can help users evaluate motor speed, throttle response, voltage behavior, current demand and temperature readings.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis information is useful when comparing propeller configurations, reviewing power-system loading or understanding changes in performance between runs.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eUnlike smaller SeaKing controllers that depend on an external OTA module for historical graphs, the 200A HV V4 provides built-in recording capability.\u003c\/p\u003e\n\n  \n        \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/05_ec516cc6-fe32-4206-9833-ba9d0f915b65.png?v=1794469206\" alt=\"Hobbywing SeaKing 200A HV V4 built-in 10-minute data logging and performance monitoring graphs\"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eBuilt-in Spark-Proof Circuit for High-Voltage Connections\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eConnecting high-voltage LiPo batteries to an ESC can produce a noticeable electrical spark as the internal capacitors charge. This effect becomes especially relevant in high-voltage marine power systems.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 includes a \u003cstrong\u003ebuilt-in spark-proof circuit\u003c\/strong\u003e designed to reduce connection sparks and help protect battery plugs from spark-related wear.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eHobbywing specifically highlights this feature for high-voltage connections in the 6S–14S range. The circuit helps make repeated battery connections more manageable in demanding marine applications.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eSpark suppression does not eliminate every electrical hazard. Always use properly rated connectors, ensure correct polarity and maintain secure, well-insulated solder joints.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe ESC is supplied without a preinstalled battery connector, allowing the installer to select a suitable connector for the intended battery and operating current.\u003c\/p\u003e\n\n\n          \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/07_e841a654-e21d-4118-bc49-9422247afd49.png?v=1794469270\" alt=\"Hobbywing SeaKing 200A HV V4 built-in spark-proof circuit for high-voltage LiPo battery connections\"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n  \n  \n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eDual-Channel Water Cooling for High-Current Operation\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eEffective cooling is essential when operating a marine ESC under substantial motor load. The SeaKing 200A HV V4 uses a dual-channel water-cooling system designed to improve heat dissipation across the ESC housing.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe water-cooling connections measure 3.0mm inner diameter and 5.5mm outer diameter. Compatible tubing should be securely fitted and properly routed through the boat's water-cooling circuit.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eDual-channel cooling increases the available heat-transfer capability compared with a simpler cooling arrangement, helping the ESC manage sustained operating loads when adequate water flow is provided.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eDuring installation, check that both cooling channels have unobstructed flow. Secure tubing with suitable clamps or ties and inspect the system for leaks before running the boat.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWater cooling is not a substitute for appropriate motor and propeller selection. Excessive propeller load can still push current beyond the ESC's continuous rating.\u003c\/p\u003e\n  \n            \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/08_40e3ad1c-a116-4245-bf8d-22e261fcb81f.png?v=1794469346\" alt=\"Hobbywing SeaKing 200A HV V4 dual-channel water cooling system with circulating water tubes\"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n  \n  \n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAdjustable High-Output BEC for Powerful Steering Servos\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe integrated switch-mode BEC supplies regulated power to compatible receivers and steering servos, reducing the need for a separate receiver battery in appropriately configured systems.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eIts selectable output voltages are \u003cstrong\u003e6.0V, 7.4V and 8.4V\u003c\/strong\u003e, with an 8A continuous current rating. The manufacturer also advertises a maximum short-duration output of up to 25A.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis provides flexibility for boats using standard-voltage or high-voltage steering electronics. Select 6V for compatible conventional electronics, or 7.4V\/8.4V when the connected receiver and servo are specifically rated for the higher output.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe BEC voltage is adjustable through the HW LINK V2 app. The selected setting applies to the BEC output; the three voltage options are not supplied simultaneously.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;border-left:4px solid #E60073;padding:13px 16px;margin:16px 0;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003eBEC Rating and Voltage Reminder\u003c\/strong\u003e\n\u003cp style=\"margin:6px 0 0;\"\u003eThe continuous BEC specification is 8A. Do not treat the advertised 25A maximum as a continuous rating. Never select an output voltage exceeding the receiver or steering servo's operating limit.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n              \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/06_558845f7-ca3e-46dd-b6d1-80f743b21f80.png?v=1794469408\" alt=\"Hobbywing SeaKing 200A HV V4 adjustable 8A BEC with 6V 7.4V and 8.4V outputs\"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n  \n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eCapacitor Overheating Protection\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 includes dedicated capacitor overheating protection to help protect its electronic components under abnormal thermal conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAccording to the official manual, when capacitor overheating protection is triggered, the ESC reduces motor output to approximately 50% of normal output. Full power can return automatically after the temperature falls sufficiently.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis additional protection is valuable in high-current marine applications, where the power system may experience substantial thermal stress from sustained acceleration or heavy propeller loading.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eIf thermal protection occurs repeatedly, inspect the cooling system, wiring, motor current demand and propeller setup rather than continuing to operate under the same conditions.\u003c\/p\u003e\n\n  \n                \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/09_7e946b94-a3ea-4802-9baa-3dad36b5dbc4.png?v=1794469462\" alt=\" Hobbywing SeaKing 200A HV V4 capacitor overheating protection for high-current marine operation\"\u003e\u003c\/p\u003e \u003c\/div\u003e\n  \n  \n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eSelectable Freewheeling for Improved Throttle Response\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 supports Hobbywing's configurable Freewheeling function, which affects how the motor responds when the throttle is released.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eWith Freewheeling enabled, the ESC can provide faster deceleration, improved throttle linearity and reduced operating heat under comparable conditions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis can be particularly useful when approaching turns or adjusting speed in a performance-oriented RC boat, where predictable throttle response contributes to more controlled handling.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFreewheeling can be enabled or disabled through the HW LINK V2 app. Users can compare the two settings and select the response that best suits the boat's power system and handling characteristics.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis is an important distinction from the SeaKing 300A HV V4, which does not provide a Disabled option for Freewheeling according to the official manual.\u003c\/p\u003e\n\n  \n                  \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/10_92a496d2-20e3-45aa-bbc6-e076457e2118.png?v=1794469507\" alt=\"Hobbywing SeaKing 200A HV V4 selectable Freewheeling function for faster RC boat deceleration\"\u003e\u003c\/p\u003e \u003c\/div\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eAUX Channel for Real-Time Transmitter Parameter Adjustment\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 includes an additional yellow AUX signal wire that can be connected to an available receiver channel.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eOnce the receiver and transmitter are configured, this connection allows selected ESC parameters to be adjusted through a transmitter switch or knob.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe default AUX assignment is Maximum Reverse Force. Other supported assignments include Punch and Drag Brake Force, selected through the HW LINK V2 app.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis provides a convenient way to make selected adjustments without repeatedly opening the smartphone app to change the same parameter.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe AUX input requires a compatible receiver channel and transmitter configuration. Refer to the official wiring diagram before connecting the yellow signal wire.\u003c\/p\u003e\n\n\n                    \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/11_04681a20-db36-4e84-9689-eaa4c0a38d00.png?v=1794469553\" alt=\"Hobbywing SeaKing 200A HV V4 AUX yellow signal wire for real-time transmitter parameter adjustment\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eBattery and Motor Compatibility: 5S–14S LiPo\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 supports 5S through 14S LiPo input. Choosing the appropriate battery configuration depends on the motor's maximum voltage, KV rating, propeller load, expected current draw and the boat's drivetrain.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:39%;background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e2S–4S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported; below the minimum 5S input rating.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e5S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e18.5V nominal; supported.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e6S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e22.2V nominal; supported.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e8S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e29.6V nominal; supported.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e10S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e37.0V nominal; supported.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e12S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e44.4V nominal; supported.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e14S LiPo\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e51.8V nominal; maximum supported cell count.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;padding:10px 12px;font-weight:bold;\"\u003e15S or Higher\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe supported range also includes intermediate cell counts between 5S and 14S. Refer to the manual for available automatic and manual cell-count settings.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eUsing Multiple LiPo Packs in Series\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eA higher-cell-count marine system may use multiple compatible LiPo packs connected in series to achieve the required total voltage. In a series connection, pack voltages add together while the capacity in mAh remains that of one matching pack.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor example, two matching 6S LiPo batteries connected in series create a 12S power supply. Two compatible 7S packs connected in series create a 14S supply.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eOnly use packs and wiring specifically suitable for series operation. Match battery chemistry, capacity, cell condition and state of charge, and use connectors and harnesses rated for the voltage and expected current. Do not use a parallel connection when a higher voltage is required.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAt 14S, a fully charged standard LiPo system reaches 58.8V. Ensure the motor, wiring and other connected power components are suitable for this voltage.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003eHigh-Current Battery Connector Selection\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A V4 includes 8AWG battery input wires but no factory-installed battery connector. The positive and negative leads are supplied for installation of a connector appropriate to the intended marine setup.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor a high-current system, connector selection should account for continuous current capacity, voltage rating, contact resistance, installation method and electrical insulation.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eA connector suitable for a lower-current RC application should not automatically be considered suitable for a 200A marine power system. Select connectors and wiring based on the actual application and verified component ratings.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe built-in spark-proof function helps manage connection sparks, but does not replace proper high-current connector selection or correct polarity.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:22px 0 8px;\"\u003e6.5mm Motor Bullet Connectors\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThree 10AWG motor output leads, approximately 150mm long, are fitted with 6.5mm gold female bullet connectors.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe motor must have compatible mating connectors or appropriately rated replacements must be installed.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe ESC controls one compatible sensorless brushless motor. For a twin-motor boat, select a suitable ESC for each motor rather than connecting two brushless motors to one controller.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eMotor rotation direction can be changed through the HW LINK V2 app or by exchanging two motor phase wires when the entire system is disconnected from power.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eSeaKing 160A V4 vs 200A HV V4 vs 300A HV V4\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing V4 family includes several current ratings, but higher current is not the only difference. Input voltage, physical size, cooling connections and programming behavior should all be considered.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;margin:12px 0 16px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background:#E60073;color:#fff;\"\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003e160A V4\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003e200A HV V4\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003e300A HV V4\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eCurrent\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e160A \/ 800A\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e200A \/ 1000A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e300A \/ 1600A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eLiPo Range\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e3–8S\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e5–14S\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e5–14S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBEC\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e6\/7.4\/8.4V, 8A\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e6\/7.4\/8.4V, 8A\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e6\/7.4\/8.4V, 8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBluetooth\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBuilt-in\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBuilt-in\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eFreewheeling\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eSelectable\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eSelectable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eAlways enabled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eCooling Pipe I.D. \/ O.D.\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e3.0\/5.5mm\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e3.0\/5.5mm\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e3.5\/6.0mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eDimensions (mm)\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e91×41×25.5\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e106×51×31\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e94×58.8×43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003ePublished Weight\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e220g\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e386g\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e443g*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBoat Length\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e≤120cm\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e≤140cm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003e≤180cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 14px;\"\u003e*The 300A HV V4 published weight includes its input wires, while the 160A and 200A figures include wires and output connectors. These weight figures are not measured on identical accessory bases.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eSeaKing 160A V4:\u003c\/strong\u003e A smaller 3S–8S controller with 160A continuous current, suitable for compatible marine systems requiring a lower maximum cell count.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eSeaKing 200A HV V4:\u003c\/strong\u003e Extends support to 14S while providing 200A continuous current, integrated Bluetooth, high-current input wiring and configurable Freewheeling.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003cstrong\u003eSeaKing 300A HV V4:\u003c\/strong\u003e Provides 300A continuous current for still more demanding applications, with a larger housing, different cooling connectors and permanently enabled Freewheeling.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eExplore additional models in our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003e11 Programmable Parameters for Marine Performance Tuning\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 offers 11 programmable parameter categories through the Hobbywing HW LINK V2 app.\u003c\/p\u003e\n\n\u003cul style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e1. Running Mode:\u003c\/strong\u003e Forward Only or Forward and Reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2. Maximum Reverse Force:\u003c\/strong\u003e 25%, 50%, 75% or 100%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3. LiPo Cells:\u003c\/strong\u003e Automatic battery cell-count detection or supported manual selections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4. Low-Voltage Cutoff:\u003c\/strong\u003e Disabled or adjustable per-cell cutoff settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5. BEC Voltage:\u003c\/strong\u003e 6.0V, 7.4V or 8.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6. Motor Rotation:\u003c\/strong\u003e Clockwise or counterclockwise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7. Punch:\u003c\/strong\u003e Seven acceleration-response levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8. Freewheeling:\u003c\/strong\u003e Enabled or Disabled.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9. Drag Brake Force:\u003c\/strong\u003e Disabled, 10%, 25%, 50%, 75% or 100%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10. Motor Timing:\u003c\/strong\u003e Adjustable from 10° to 30°.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11. AUX Channel Function:\u003c\/strong\u003e Assign reverse force, Punch or Drag Brake for compatible transmitter adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eHigher Punch settings produce more aggressive acceleration but may also increase startup current and stress the motor, ESC and battery. Higher motor timing can affect motor speed, efficiency, heat and current demand.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eUse the manufacturer's recommended settings as a starting point and make changes based on actual motor, propeller and boat behavior.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eInstallation and First-Time Setup\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003e1. Connect the Motor, Receiver and Cooling System\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eConnect the three motor phase wires to a compatible sensorless brushless motor. Install the water-cooling tubing according to the boat's cooling circuit and secure the connections.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eConnect the ESC throttle lead to the receiver's throttle channel. The red wire in the throttle cable supplies BEC power to the receiver and steering servo.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eDo not connect another receiver power supply in parallel with the ESC's BEC unless the system is specifically configured to isolate the BEC output as described in the manufacturer's manual.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eConnect the yellow AUX signal wire to a compatible unused receiver channel only when AUX adjustment functionality is required.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003e2. Install the Battery Connector and Check Polarity\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eInstall a suitable high-current battery connector onto the supplied 8AWG input leads. The red wire is positive and the black wire is negative.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eIncorrect battery polarity can cause permanent ESC damage. Confirm all solder joints, insulation and connections before connecting the battery.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003e3. Calibrate the Throttle Range\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThrottle calibration is required during the first setup and when a new transmitter or receiver is installed. The following summarizes the pistol-transmitter procedure.\u003c\/p\u003e\n\n\u003col style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003eTurn on the transmitter and check that throttle travel and trim settings are correct.\u003c\/li\u003e\n\u003cli\u003eConnect the battery while leaving the ESC switched off.\u003c\/li\u003e\n\u003cli\u003ePull the throttle trigger to full forward and hold it.\u003c\/li\u003e\n\u003cli\u003eSwitch on the ESC while maintaining full throttle.\u003c\/li\u003e\n\u003cli\u003eAfter approximately four seconds, two motor beeps confirm the maximum throttle position.\u003c\/li\u003e\n\u003cli\u003eRelease the trigger to neutral.\u003c\/li\u003e\n\u003cli\u003eA long confirmation beep indicates calibration is complete.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eStick-type transmitters have a corresponding calibration procedure described in the manual. Confirm the correct battery cell-count indication before running the motor.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eAlways keep the propeller clear of people and objects during setup and bench testing. Configure transmitter fail-safe protection to stop the motor when the throttle signal is lost.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003e4. Connect to HW LINK V2\u003c\/h3\u003e\n\n\u003col style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003eDownload and install Hobbywing's official HW LINK V2 mobile app.\u003c\/li\u003e\n\u003cli\u003ePower on the ESC with a compatible battery.\u003c\/li\u003e\n\u003cli\u003eOpen the app and select Bluetooth as the connection method.\u003c\/li\u003e\n\u003cli\u003eChoose the ESC from the available Bluetooth devices.\u003c\/li\u003e\n\u003cli\u003eOpen the Parameters menu to review and adjust supported settings.\u003c\/li\u003e\n\u003cli\u003eSave the changes and disconnect the Bluetooth connection when finished.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe factory Bluetooth device name follows the HW_BLE naming format. Refer to the official manual for pairing and reset instructions.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:bold;color:#111;margin:20px 0 8px;\"\u003e5. Firmware Updates and Factory Reset\u003c\/h3\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe HW LINK V2 app provides firmware-update functions for the SeaKing 200A HV V4. Select an available compatible firmware version through the app's Firmware Update menu and follow the instructions.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe Parameters menu also allows users to restore factory-default ESC settings. Throttle-range calibration must be repeated after a factory reset.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eElectronic Protection and LED Status Indicators\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing 200A HV V4 includes multiple protection functions designed to respond to abnormal electrical and thermal conditions.\u003c\/p\u003e\n\n\u003cul style=\"margin:0 0 14px;padding-left:22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Voltage Protection:\u003c\/strong\u003e Responds to battery voltage falling below the selected cutoff threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC Overheating Protection:\u003c\/strong\u003e Reduces output to approximately 50% when triggered.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-Current Protection:\u003c\/strong\u003e Cuts output when an over-current condition is detected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitor Overheating Protection:\u003c\/strong\u003e Reduces output to approximately 50% until sufficient cooling occurs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Signal Protection:\u003c\/strong\u003e Works with correctly configured receiver and transmitter fail-safe settings to reduce uncontrolled operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe official manual describes the following diagnostic indications:\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.6;margin:12px 0 16px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#E60073;color:#fff;\"\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eLED Indication\u003c\/th\u003e\n\u003cth style=\"padding:10px;border:1px solid #ddd;text-align:left;\"\u003eMeaning\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eRed LED: Single repeating flash\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eLow-voltage protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBlue LED: Single repeating flash\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eESC overheating protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBlue LED: Three repeating flashes\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eOver-current protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eBlue LED: Five repeating flashes\u003c\/td\u003e\n\u003ctd style=\"padding:9px;border:1px solid #ddd;\"\u003eCapacitor overheating protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eIf protection activates repeatedly, check the battery, motor load, cooling system and wiring before resuming operation. Do not treat the protection functions as permission to exceed the ESC's electrical ratings.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eRecommended Applications and Installation Space\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eHobbywing recommends the SeaKing 200A HV V4 for compatible RC boats up to approximately 140cm in length.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThis includes suitably designed high-performance electric marine models where the motor and battery system require the ESC's 5S–14S voltage range and 200A continuous current capability.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe ESC housing measures 106 × 51 × 31mm, excluding the water-cooling pipe connections and mounting holes. Its published weight is 386g with wires and output connectors.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eBefore installation, verify that the hull offers adequate space for the ESC, mounting hardware, power wires, cooling tubing and Bluetooth-integrated switch.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eThe hull must also provide appropriate battery mounting and weight distribution. High-voltage ESC selection should be based on the complete propulsion system rather than hull length alone.\u003c\/p\u003e\n\n\u003c!-- IMAGE SLOT 11\nPOSITION: After Recommended Applications\nVISUAL: SeaKing 200A HV V4 installed inside RC boat hull\nALT: Hobbywing SeaKing 200A HV V4 installed in a high-performance RC boat with brushless motor and water cooling\n--\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eOfficial Hobbywing SeaKing 200A HV V4 Manual\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eFor detailed wiring diagrams, transmitter calibration, Bluetooth pairing, programmable parameters, data logging and troubleshooting, consult the official Hobbywing SeaKing HV V4 ESC user manual.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_Seaking_200A_HV_V4_Manual.pdf?v=1794467998\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#E60073;text-decoration:underline;font-weight:bold;\"\u003eDownload Hobbywing SeaKing 200A HV V4 User Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp style=\"font-size:13px;color:#666;margin:0 0 14px;\"\u003eThe linked manual also covers the SeaKing 300A HV V4. Some functions and physical specifications differ between the two models. Use the 200A-specific settings and information for this ESC.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eExplore More Hobbywing Marine ESCs\u003c\/h2\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eNeed another current rating or input-voltage range? Browse our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e to compare controllers for smaller brushless boats, 8S power systems and high-voltage marine applications.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 14px;\"\u003eYou can also explore our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/rc-boat-escs\" style=\"color:#E60073;text-decoration:underline;\"\u003eRC Boat ESC collection\u003c\/a\u003e for additional marine electronic speed controllers.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;font-weight:bold;color:#111;margin:30px 0 12px;border-bottom:1px solid #eee;padding-bottom:8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the Hobbywing SeaKing 200A HV V4 support 14S LiPo batteries?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. The ESC supports 5S through 14S LiPo batteries. A standard 14S LiPo has a nominal voltage of 51.8V and reaches 58.8V when fully charged at 4.20V per cell.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I use a 4S LiPo with the SeaKing 200A HV V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The manufacturer's minimum supported battery configuration is 5S LiPo. A 4S battery is below the specified input range.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat is the difference between the SeaKing 160A V4 and 200A HV V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe SeaKing 160A V4 supports 3S–8S LiPo batteries with 160A continuous current, while the 200A HV V4 supports 5S–14S with 200A continuous current. The 200A is larger and heavier, with 8AWG battery leads and a different application range.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat is the difference between the SeaKing 200A V4 and 300A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eBoth models support 5S–14S LiPo and feature built-in Bluetooth, data logging and adjustable BEC voltage. The 300A increases continuous current capacity to 300A, uses a larger cooling-pipe diameter and does not allow Freewheeling to be disabled. The 200A is rated at 200A continuous current and supports selectable Freewheeling.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SeaKing 200A HV V4 have built-in Bluetooth?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Bluetooth is integrated into the ESC power switch. It connects directly to the Hobbywing HW LINK V2 mobile app for supported programming, data monitoring and firmware updates.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDo I need an OTA module or LCD programming box?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The SeaKing 200A HV V4 uses integrated Bluetooth for normal programming. Hobbywing lists conventional LED\/LCD programming boxes and the separate OTA Programmer as unsupported for this model.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eHow much historical data can the SeaKing 200A V4 record?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eHobbywing advertises built-in recording for approximately 10 minutes of operation. Recorded information can be viewed as historical graphs through the supported HW LINK V2 app.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SeaKing 200A V4 have an anti-spark circuit?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Hobbywing specifies an integrated spark-proof circuit designed to reduce battery-connection sparks, particularly for high-voltage 6S–14S applications. Proper connector selection and safe wiring practices are still essential.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eIs the SeaKing 200A HV V4 waterproof?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. It has IP67 waterproof and dustproof protection. The rating applies under specified test conditions and can decline with wear or damage. Electrical plugs and cooling connections still require maintenance.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SeaKing 200A HV V4 require water cooling?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe ESC features dual-channel water cooling intended for operation with a properly installed marine cooling circuit. Adequate water flow is important for reliable performance, especially under sustained high-current loads.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat is the BEC output of the SeaKing 200A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eThe switch-mode BEC provides selectable 6V, 7.4V and 8.4V outputs with an 8A continuous rating. The manufacturer also advertises up to 25A short-duration output. Always match the voltage setting to the receiver and servo specifications.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan Freewheeling be disabled on the SeaKing 200A V4?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. Freewheeling can be enabled or disabled through the HW LINK V2 app. The 300A HV V4 differs because its Freewheeling setting cannot be disabled.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SeaKing 200A V4 support reverse?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes. The ESC supports Forward Only and Forward and Reverse running modes. Maximum Reverse Force can be adjusted, and the AUX channel can be assigned to modify reverse force through a compatible transmitter.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eDoes the SeaKing 200A HV V4 include battery connectors?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The ESC has red and black 8AWG battery input leads without a preinstalled connector. A suitable high-current connector must be installed for the intended battery system.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat motor connectors does the SeaKing 200A V4 use?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eIt is supplied with three 10AWG motor output wires fitted with 6.5mm gold female bullet connectors. Confirm the motor has compatible mating connectors before installation.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan I connect two LiPo batteries in series?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eYes, an appropriately designed series connection can be used to create a higher total cell count within the ESC's supported 5S–14S range. Use matched, compatible batteries and properly rated wiring and connectors. Series wiring increases voltage rather than mAh capacity.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eCan one SeaKing 200A V4 control two brushless motors?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The ESC is designed for one compatible sensorless brushless motor. Twin-motor installations require appropriately selected individual motor controllers.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eWhat size RC boat is the SeaKing 200A V4 recommended for?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eHobbywing recommends the ESC for compatible boats up to approximately 140cm long. Actual suitability depends on the motor, propeller, battery configuration, current demand and cooling system.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:16px;font-weight:bold;color:#111;margin:18px 0 6px;\"\u003eIs the 1000A peak rating suitable for continuous use?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;\"\u003eNo. The continuous rating is 200A. The 1000A specification refers to peak current, not a sustainable operating level. Select the motor, propeller and battery system to stay within appropriate continuous electrical and thermal limits.\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67944704999638,"sku":"30301201 GL","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_107d6eaf-2874-45f4-849a-9083aa146ac0.webp?v=1794468729"},{"product_id":"hobbywing-seaking-300a-hv-v4-brushless-marine-esc","title":"Hobbywing SeaKing 300A HV V4 Brushless Marine 5–14S ESC","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\n\n\u003cdiv style=\"max-width:1000px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;color:#222;font-size:15px;line-height:1.75;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHobbywing SeaKing 300A HV V4 Brushless Marine ESC\u003c\/strong\u003e is built for large, high-current RC boat power systems that need precise throttle response, dependable cooling, and high-voltage LiPo support. With a 300A continuous current rating, 1600A peak current rating, and 5–14S LiPo compatibility, it brings serious power-handling capability to demanding marine installations.\u003c\/p\u003e\n\n\u003cp\u003eBeyond its current rating, this SeaKing V4 controller combines an IP67-rated enclosure, built-in Bluetooth programming, a high-capacity capacitor bank, configurable BEC output, and a dedicated programming interface. It offers more flexibility for setting up, monitoring, and maintaining a large brushless RC boat.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fafafa;border-left:4px solid #e60073;padding:18px 20px;margin:24px 0;border-radius:5px;\"\u003e\n\u003ch2 style=\"font-size:20px;margin:0 0 12px;color:#111;\"\u003eQuick Fit Check\u003c\/h2\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 5–14S LiPo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 300A continuous \/ 1600A peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e Three-phase sensorless brushless marine motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor connection:\u003c\/strong\u003e Integrated 8.0mm female sockets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery connection:\u003c\/strong\u003e 8AWG red\/black input wires; no battery plug pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater cooling:\u003c\/strong\u003e 3.5mm inner \/ 6.0mm outer water-cooling port diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC body dimensions:\u003c\/strong\u003e 94 × 58.8 × 43mm (L × W × H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer boat-length guidance:\u003c\/strong\u003e Up to 180cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin:12px 0 0;font-size:14px;\"\u003e\u003cstrong\u003eBefore ordering:\u003c\/strong\u003e Check motor current requirements, available hull space, cooling-tube connections, and connector compatibility. Boat length alone does not determine ESC suitability.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:32px 0 15px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eHobbywing SeaKing 300A HV V4 Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:38%;background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eBrand \/ Model\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eHobbywing SeaKing 300A HV V4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eProduct Number\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003e30301202\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eBrushless \/ Sensorless Marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003e300A \/ 1600A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003e5–14S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eSwitch-mode, 6V \/ 7.4V \/ 8.4V @ 8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eWaterproof Rating\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eInput Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eRed 8AWG × 200mm; Black 8AWG × 200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eInput Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eNot pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eMotor Output Connection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eIntegrated 8.0mm female sockets; no separate output wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003e94 × 58.8 × 43mm (excluding cooling fittings and mounting features)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003e443g (including input wires)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eWater-Cooling Port Diameter\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003e3.5mm inner \/ 6.0mm outer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eBuilt-in Bluetooth\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eYes, integrated into the power switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eProgramming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eHW LINK V2 app, LED Program Box, LCD G2, LCD Pro, OTA Programmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eData Recording\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003ePeak values, real-time data and historical graph recording\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eFirmware Updates\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 13px;font-weight:bold;\"\u003eRecommended Boat Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 13px;\"\u003eUp to 180cm (manufacturer guidance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n  \n    \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/02_7b9178ce-4bed-472f-a78b-0631fe296a80.png?v=1794471588\" alt=\"Hobbywing SeaKing 300A HV V4 5-14S high Power\"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n \n  \n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003e300A Continuous Power for High-Voltage Marine Setups\u003c\/h2\u003e\n\n\u003cp\u003eThe SeaKing 300A HV V4 is designed for large RC boats with demanding brushless propulsion systems. Its 300A continuous current rating provides greater current-handling capacity than the SeaKing 200A HV V4, while its 5–14S input range accommodates high-voltage marine configurations.\u003c\/p\u003e\n\n\u003cp\u003eA high-current ESC is particularly useful when motor load, propeller selection, hull resistance, and repeated acceleration place substantial demands on the power system. The 1600A peak rating describes the manufacturer's peak current capability; it should not be interpreted as a continuous operating rating.\u003c\/p\u003e\n\n\u003cp\u003eThe aluminum housing and integrated water-cooling structure help manage heat. As with any high-power marine ESC, actual operating temperature depends on sufficient water flow, propeller load, wiring, and the complete power-system configuration.\u003c\/p\u003e\n\n  \n      \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/07_bf2652e0-69bc-4a02-874a-164d7cd2f7b0.png\" alt=\"Hobbywing SeaKing 300A HV V4 5-14S CAPACITOR AND SPARK PROTECTION \"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n  \n  \n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eBuilt-in 4080μF Capacitor Bank and Spark Protection\u003c\/h2\u003e\n\n\u003cp\u003eThe SeaKing 300A HV V4 incorporates a \u003cstrong\u003e4080μF capacitor bank\u003c\/strong\u003e to support high-current operation and reduce the need for additional external capacitors in many installations. This integrated design helps simplify the electrical layout of large RC boats.\u003c\/p\u003e\n\n\u003cp\u003eCapacitor temperature protection monitors thermal conditions and reduces output when the protection threshold is reached. The ESC also incorporates a spark-protection circuit intended to reduce connection sparks when using high-voltage battery systems.\u003c\/p\u003e\n\n\u003cp\u003eThese protections are useful safeguards, but they do not replace correct connector selection, sound solder joints, proper polarity, and suitable battery wiring. Additional capacitor requirements still depend on the particular installation and manufacturer's recommendations.\u003c\/p\u003e\n\n\n        \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/04_aa317800-5fd8-4043-996e-35f3897f4bde.png\" alt=\"Hobbywing SeaKing 300A HV V4 5-14S BLUETOOTH \"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eBuilt-in Bluetooth and HW LINK V2 App\u003c\/h2\u003e\n\n\u003cp\u003eUnlike ESCs that require a separate Bluetooth adapter for basic mobile programming, the SeaKing 300A HV V4 has Bluetooth integrated into its power-switch assembly.\u003c\/p\u003e\n\n\u003cp\u003eUsing the \u003cstrong\u003eHobbywing HW LINK V2 app\u003c\/strong\u003e, users can configure supported parameters, read performance data, and perform firmware updates directly through a compatible smartphone.\u003c\/p\u003e\n\n\u003cul style=\"padding-left:22px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eParameter adjustment:\u003c\/strong\u003e Configure throttle behavior, motor direction, BEC voltage, timing, and other supported settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-time monitoring:\u003c\/strong\u003e View available operating information through the app.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHistorical data:\u003c\/strong\u003e Review recorded operating data in graph format.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware updates:\u003c\/strong\u003e Access supported firmware versions and update the controller.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"font-size:14px;background:#f7f7f7;padding:12px 15px;border-radius:4px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Bluetooth communication is intended for nearby setup and data access, with a stated effective range of approximately 5 meters. It is not a long-range telemetry link for monitoring a boat across the water.\u003c\/p\u003e\n\n  \n          \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/11_3001e4be-3221-491c-a57f-342fc425f309.png\" alt=\"Hobbywing SeaKing 300A HV V4 5-14S PROGRAMMING \"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n  \n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eTwo Ways to Program the ESC\u003c\/h2\u003e\n\n\u003cp\u003eThe SeaKing 300A HV V4 offers more programming flexibility than relying on a mobile app alone. In addition to its built-in Bluetooth connection, it provides a dedicated programming interface.\u003c\/p\u003e\n\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:14px;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 260px;border:1px solid #ddd;border-radius:6px;padding:16px;background:#fafafa;\"\u003e\n\u003ch3 style=\"font-size:17px;color:#e60073;margin:0 0 8px;\"\u003eHW LINK V2 App\u003c\/h3\u003e\n\u003cp style=\"margin:0;\"\u003eWireless configuration, firmware updates, and data monitoring via built-in Bluetooth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px;border:1px solid #ddd;border-radius:6px;padding:16px;background:#fafafa;\"\u003e\n\u003ch3 style=\"font-size:17px;color:#e60073;margin:0 0 8px;\"\u003eExternal Programming Devices\u003c\/h3\u003e\n\u003cp style=\"margin:0;\"\u003eSupports compatible LED Program Box, LCD G2, LCD Pro, and OTA Programmer through the dedicated interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eProgramming accessories are separate from the ESC unless expressly included in a particular package.\u003c\/p\u003e\n\n  \n            \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/10_ccc5ed19-0805-44d5-99c2-3c781097a64f.png\" alt=\"Hobbywing SeaKing 300A HV V4 5-14S TUNING \"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n  \n  \n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003e11 Programmable Parameters and AUX Control\u003c\/h2\u003e\n\n\u003cp\u003eThe SeaKing V4 programming system provides 11 configurable parameter categories, covering running mode, reverse force, LiPo cell count, low-voltage cutoff, BEC voltage, motor rotation, punch, Freewheeling, drag brake, motor timing, and AUX channel function.\u003c\/p\u003e\n\n\u003cp\u003eA separate yellow AUX signal wire can connect to an available receiver channel. With a suitable transmitter control assigned, supported settings can then be adjusted without repeatedly entering the programming menu.\u003c\/p\u003e\n\n\u003cp\u003eFor example, the AUX channel can be configured to control maximum reverse force, punch, or drag-brake force, depending on the selected function.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:18px;color:#111;margin:22px 0 8px;\"\u003eFreewheeling Behavior on the 300A Model\u003c\/h3\u003e\n\n\u003cp\u003eFreewheeling technology supports more controlled throttle release, improved deceleration behavior, and reduced heat under suitable operating conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant model-specific detail:\u003c\/strong\u003e On the SeaKing 300A HV V4, Freewheeling does not have a selectable Disabled option. This differs from some smaller SeaKing V4 models and should be considered when configuring the ESC.\u003c\/p\u003e\n\n\n  \n              \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/06_cb3adf5b-c18e-4260-8b75-e20197fed62b.png\" alt=\"Hobbywing SeaKing 300A HV V4 5-14S BEC \"\u003e\u003c\/p\u003e  \u003c\/div\u003e\n  \n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eAdjustable Switch-Mode BEC for High-Voltage Servos\u003c\/h2\u003e\n\n\u003cp\u003eThe integrated switch-mode BEC provides selectable \u003cstrong\u003e6.0V, 7.4V, and 8.4V output settings\u003c\/strong\u003e, with an official continuous output current specification of 8A.\u003c\/p\u003e\n\n\u003cp\u003eThis gives builders flexibility when choosing compatible standard-voltage or high-voltage steering servos. Select the BEC voltage according to the operating limits of both the receiver and servo.\u003c\/p\u003e\n\n\u003cp style=\"font-size:14px;background:#fff5fa;border-left:3px solid #e60073;padding:12px 15px;\"\u003eDo not set the BEC voltage above the maximum supported voltage of connected receiver or servo equipment. Higher voltage does not automatically mean better compatibility.\u003c\/p\u003e\n  \n  \n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eWater Cooling, Installation and Connection Guide\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:18px;color:#111;margin:20px 0 8px;\"\u003eWater-Cooling Connections\u003c\/h3\u003e\n\u003cp\u003eThe SeaKing 300A HV V4 uses water-cooling fittings with a 3.5mm inner diameter and 6.0mm outer diameter. Choose compatible cooling tubing and secure all water-line connections to help prevent loosening during operation.\u003c\/p\u003e\n\n\u003cp\u003eVerify reliable water circulation before high-load operation. The IP67 enclosure rating does not eliminate the need for effective cooling.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:18px;color:#111;margin:20px 0 8px;\"\u003eBattery and Motor Wiring\u003c\/h3\u003e\n\u003cp\u003eThe ESC is supplied with red and black 8AWG battery input wires without a pre-installed battery connector. Choose an appropriate high-current connector for the intended battery system and make secure, correctly polarized connections.\u003c\/p\u003e\n\n\u003cp\u003eOn the motor side, the controller uses integrated 8.0mm female sockets rather than separate output leads. Match the motor's three-phase connection system to these sockets.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:18px;color:#111;margin:20px 0 8px;\"\u003eFirst-Time Throttle Calibration\u003c\/h3\u003e\n\u003cp\u003eThrottle-range calibration is required before first use and whenever the transmitter or receiver is changed. Follow the manufacturer's procedure for your transmitter type. Confirm the throttle endpoints and neutral position, and configure an appropriate receiver failsafe before running the boat.\u003c\/p\u003e\n\n\u003cp\u003eKeep the propeller safely clear during all setup procedures. Disconnect the drive battery after use, even when the ESC's power switch is off.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 15px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:17px;margin:18px 0 6px;\"\u003eWhat batteries does the Hobbywing SeaKing 300A HV V4 support?\u003c\/h3\u003e\n\u003cp\u003eIt supports 5–14S LiPo battery configurations. The complete battery system must also meet the motor's voltage requirements and the application's current demands.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;margin:18px 0 6px;\"\u003eDoes the SeaKing 300A HV V4 have built-in Bluetooth?\u003c\/h3\u003e\n\u003cp\u003eYes. Bluetooth is integrated into the power-switch assembly, allowing direct connection to the HW LINK V2 smartphone app without an additional Bluetooth module.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;margin:18px 0 6px;\"\u003eCan I program it without using a smartphone?\u003c\/h3\u003e\n\u003cp\u003eYes. The 300A model includes a separate programming interface compatible with supported Hobbywing LED and LCD programming boxes. The official specifications also list OTA Programmer support.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;margin:18px 0 6px;\"\u003eWhat is the BEC output current?\u003c\/h3\u003e\n\u003cp\u003eHobbywing specifies an 8A BEC output with selectable voltages of 6V, 7.4V, and 8.4V. This is the rating to use when evaluating continuous receiver and servo power requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;margin:18px 0 6px;\"\u003eDoes it come with battery connectors?\u003c\/h3\u003e\n\u003cp\u003eNo battery connector is pre-installed. The ESC has red and black 8AWG input wires, so a suitable connector must be selected and installed for the battery system.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;margin:18px 0 6px;\"\u003eCan Freewheeling be switched off?\u003c\/h3\u003e\n\u003cp\u003eNo. According to the Hobbywing manual, the SeaKing 300A HV V4 does not offer a Disabled option for Freewheeling.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;margin:18px 0 6px;\"\u003eWhat is the difference between the SeaKing 200A HV V4 and 300A HV V4?\u003c\/h3\u003e\n\u003cp\u003eBoth support 5–14S LiPo systems. The 300A model increases the current rating from 200A continuous \/ 1000A peak to 300A continuous \/ 1600A peak. It also has a different enclosure, motor-output connection arrangement, cooling fitting dimensions, and an independent programming interface. Choose based on the complete motor, battery, cooling, and hull installation requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;margin:18px 0 6px;\"\u003eIs the ESC fully waterproof?\u003c\/h3\u003e\n\u003cp\u003eThe controller carries an IP67 rating, but waterproof performance can deteriorate with wear or damage. Inspect and dry exposed connections after use as needed, and continue to maintain the cooling system and wiring.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eHobbywing SeaKing 300A HV V4 Manual\u003c\/h2\u003e\n\n\u003cp\u003eFor throttle calibration, connection diagrams, programming tables, LED indications, and detailed safety instructions, refer to the official user manual.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_Seaking_200A_HV_V4_Manual.pdf\" target=\"_blank\" rel=\"noopener\" style=\"color:#e60073;font-weight:bold;text-decoration:underline;\"\u003eDownload Hobbywing SeaKing 300A \/ 200A HV V4 User Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp style=\"font-size:13px;color:#666;\"\u003eThe linked manual covers both the SeaKing 300A HV V4 and SeaKing 200A HV V4. Always check model-specific notes when following shared instructions.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:22px;font-weight:bold;color:#111;margin:34px 0 13px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eExplore More RC Boat ESCs\u003c\/h2\u003e\n\n\u003cp\u003eCompare other \u003ca href=\"\/fi\/collections\/hobbywing-seaking-escs\" style=\"color:#e60073;text-decoration:underline;font-weight:bold;\"\u003eHobbywing SeaKing ESCs\u003c\/a\u003e for different current ratings, battery voltages, and marine power-system requirements.\u003c\/p\u003e\n\n\u003cp\u003eYou can also browse our wider range of \u003ca href=\"\/fi\/collections\/rc-boat-escs\" style=\"color:#e60073;text-decoration:underline;font-weight:bold;\"\u003eRC boat electronic speed controllers\u003c\/a\u003e to find the right ESC for your next build or upgrade.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67944756216022,"sku":"30301202 GL","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_ff4a82d1-f180-43e3-924c-333014875ae7.webp?v=1794471514"},{"product_id":"hobbywing-seaking-pro-70a-g2-brushless-marine-esc","title":"Hobbywing SeaKing Pro 70A G2 Brushless Marine ESC 2-4S LiPo","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\n\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;color:#222;line-height:1.75;font-size:15px;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHobbywing SeaKing Pro 70A G2 Brushless Marine ESC\u003c\/strong\u003e brings competition-focused throttle control to compact RC racing boats. With 70A continuous output, support for 2-4S LiPo batteries, adjustable Turbo Timing, and a lightweight 35g design, it is developed for Mini Mono, Mini ECO, and Mini Hydro applications where precise power delivery matters.\u003c\/p\u003e\n\n\u003cp\u003eIts switch-mode BEC, adjustable PWM frequency, Freewheeling function, and optional OTA data monitoring give racers greater flexibility when tuning their marine power systems.\u003c\/p\u003e\n\n\n\n\u003cdiv style=\"background:#fff5fa;border-left:4px solid #e60073;padding:16px 18px;margin:24px 0;border-radius:4px;\"\u003e\n\u003ch2 style=\"font-size:19px;font-weight:700;color:#111;margin:0 0 12px;\"\u003eQuick Fit Check\u003c\/h2\u003e\n\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003eESC Model:\u003c\/strong\u003e Hobbywing SeaKing Pro 70A G2\u003c\/p\u003e\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 30302560\u003c\/p\u003e\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003eBattery:\u003c\/strong\u003e 2S-4S LiPo\u003c\/p\u003e\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003eMotor:\u003c\/strong\u003e Sensorless brushless motor\u003c\/p\u003e\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003eCurrent:\u003c\/strong\u003e 70A continuous \/ 200A peak\u003c\/p\u003e\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003eMain Applications:\u003c\/strong\u003e Mini Mono, Mini ECO, Mini Hydro\u003c\/p\u003e\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003eProtection Rating:\u003c\/strong\u003e IP55\u003c\/p\u003e\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003eESC Dimensions:\u003c\/strong\u003e 38.5 × 30 × 8.4mm (L × W × H)\u003c\/p\u003e\n\u003cp style=\"margin:5px 0;\"\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 35g without water-cooling fittings\u003c\/p\u003e\n\u003cp style=\"margin:10px 0 0;font-size:13px;color:#555;\"\u003e\u003cstrong\u003eInstallation note:\u003c\/strong\u003e Check available mounting space, motor current requirements, cooling arrangement, and connector compatibility before installation. The specified ESC dimensions exclude the water-cooling port and capacitor extension.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:32px 0 14px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eHobbywing SeaKing Pro 70A G2 Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.5;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"width:36%;background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eProduct Number\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e30302560\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003eBrushless, Sensorless\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e70A \/ 200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e2-4S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003eSwitch-mode 6V \/ 7.4V \/ 8.4V, 5A continuous, 10A peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eWater Resistance\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003eIP55\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e38.5 × 30 × 8.4mm (excluding water-cooling port and capacitor extension)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e35g (without water-cooling fittings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eWater-Cooling Port\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e2.0mm inner \/ 4.0mm outer diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eBattery Input Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e14AWG, 100mm (1 red + 1 black)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eMotor Output Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e16AWG, 80mm × 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eBattery Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003eNot pre-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eMotor Connectors\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e4.0mm female bullet connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eProgramming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003eLED Program Box, LCD Program Box Pro\/G2, OTA Programmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eProgrammable Parameters\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003e14 settings, including Turbo Timing, PWM frequency, Punch, Freewheeling, and BEC voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eData Recording\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003eExtreme-value recording; real-time and historical graph data with optional OTA module\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eFirmware Upgrade\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003eSupported via compatible LCD Program Box Pro\/G2 or OTA Programmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;font-weight:700;padding:12px;\"\u003eRecommended Application\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:12px;\"\u003eMini Mono, Mini ECO, Mini Hydro racing boats\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eBuilt for Mini RC Boat Competition\u003c\/h2\u003e\n\n\u003cp\u003eIn compact racing boats, ESC dimensions and weight can be just as important as outright current capability. The SeaKing Pro 70A G2 combines a slim controller body with a 70A continuous current rating, helping builders accommodate a capable power system within the limited space available in mini racing hulls.\u003c\/p\u003e\n\n\u003cp\u003eAt just 8.4mm in specified body height, its compact profile provides useful flexibility for mounting arrangements. The 35g specified weight also makes it a practical option where the overall power-system weight and boat balance need careful consideration.\u003c\/p\u003e\n\n\u003cp\u003eIts primary applications include:\u003c\/p\u003e\n\n\u003cul style=\"padding-left:22px;margin:12px 0;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMini Mono:\u003c\/strong\u003e Compact monohull racing setups requiring responsive throttle control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMini ECO:\u003c\/strong\u003e Racing applications where power-system efficiency and controlled current delivery matter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMini Hydro:\u003c\/strong\u003e Lightweight hydroplane racing configurations with demanding acceleration and handling requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eESC selection should also consider the motor, propeller, battery voltage, drivetrain load, and available cooling capacity.\u003c\/p\u003e\n\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eTurbo Acceleration with AUX Channel Control\u003c\/h2\u003e\n\n\u003cp\u003eOne of the distinguishing features of the SeaKing Pro 70A G2 is its programmable \u003cstrong\u003eTurbo Timing\u003c\/strong\u003e function. Instead of relying only on conventional throttle and timing adjustments, the ESC allows racers to activate additional motor timing through an auxiliary channel on the radio system.\u003c\/p\u003e\n\n\u003cp\u003eThe dedicated yellow signal wire connects to an available AUX channel on the receiver. A compatible transmitter switch or control can then activate or deactivate the configured Turbo Timing function during operation.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f7f7f7;padding:15px 18px;margin:18px 0;border-left:3px solid #e60073;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong\u003eTurbo Tuning Options\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eProgrammable Turbo Timing\u003c\/li\u003e\n\u003cli\u003eAdjustable Turbo Increase Rate\u003c\/li\u003e\n\u003cli\u003eTransmitter AUX channel activation\u003c\/li\u003e\n\u003cli\u003eAdditional control over acceleration characteristics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eTurbo Timing changes motor operating timing rather than increasing the battery voltage. Higher timing settings can increase electrical load and heat, so the motor, propeller, and cooling system must be considered together when tuning for competition.\u003c\/p\u003e\n\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eAdjustable 5A Switch-Mode BEC\u003c\/h2\u003e\n\n\u003cp\u003eThe integrated switch-mode BEC delivers \u003cstrong\u003e5A continuous current with up to 10A peak output\u003c\/strong\u003e, providing power for the receiver and steering servo without requiring a separate receiver battery in a standard installation.\u003c\/p\u003e\n\n\u003cp\u003eSelectable output voltages of 6V, 7.4V, and 8.4V provide flexibility for different servo and receiver configurations.\u003c\/p\u003e\n\n\u003cul style=\"padding-left:22px;margin:12px 0;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e6V:\u003c\/strong\u003e Commonly used with standard-voltage servo systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.4V:\u003c\/strong\u003e Available for compatible high-voltage equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.4V:\u003c\/strong\u003e Available for receiver and servo systems specifically rated for the higher voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"font-size:13px;color:#555;\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Always verify both receiver and servo voltage ratings before selecting a higher BEC output. Do not exceed the voltage rating of the connected electronics.\u003c\/p\u003e\n\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003ePrecision Throttle Tuning \u0026amp; Freewheeling\u003c\/h2\u003e\n\n\u003cp\u003eThe SeaKing Pro 70A G2 provides adjustable PWM drive frequency, Punch, Initial Throttle Force, motor Timing, and Freewheeling settings, allowing users to tailor throttle response to different racing conditions.\u003c\/p\u003e\n\n\u003cp\u003eLower PWM drive frequencies generally produce a more aggressive initial response, while higher settings can provide smoother acceleration. The most suitable setting depends on the motor and overall boat configuration.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:18px;font-weight:700;color:#222;margin:20px 0 10px;\"\u003eFreewheeling Function\u003c\/h3\u003e\n\n\u003cp\u003eWhen Freewheeling is enabled, the boat can decelerate more quickly after throttle release, with improved throttle linearity and reduced heat generation under comparable operating conditions.\u003c\/p\u003e\n\n\u003cp\u003eThis can be particularly useful when adjusting a boat's behavior through tighter turns or during rapid changes in throttle input.\u003c\/p\u003e\n\n    \u003cdiv class=\"cnhl-img\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/11_8cf72dc2-5ce3-471d-977f-1f40a7665ad8.png?v=1794476199\" alt=\"Hobbywing SeaKing Pro 70A G2 ESC Freewheeling function comparing RC boat deceleration with the feature enabled and disabled\"\u003e\u003c\/p\u003e\n \u003c\/div\u003e\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eCapacitor Overheating Protection\u003c\/h2\u003e\n\n\u003cp\u003eHigh-current acceleration and repeated changes in motor load place additional demands on the ESC's power electronics. The SeaKing Pro 70A G2 incorporates capacitor overheating protection to help reduce the risk of damage associated with capacitor overload or excessive temperature.\u003c\/p\u003e\n\n\u003cp\u003eThis protective feature complements the ESC's battery low-voltage protection, thermal protection, and throttle signal loss protection.\u003c\/p\u003e\n\n\n    \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/10_ac81eaf2-054e-40d2-a85b-2920c1a2aad0.png?v=1794476325\" alt=\"Hobbywing SeaKing Pro 70A G2 marine ESC capacitor overheating protection and integrated capacitor assembly\"\u003e\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eCompact Cooling Design \u0026amp; IP55 Protection\u003c\/h2\u003e\n\n\u003cp\u003eThe SeaKing Pro 70A G2 uses a compact heatsink arrangement with provision for water-cooling fittings. The supplied water-cooling ports can be installed when the boat's power requirements and operating conditions call for additional cooling.\u003c\/p\u003e\n\n\u003cp\u003eThe water-cooling port has a specified \u003cstrong\u003e2.0mm inner diameter and 4.0mm outer diameter\u003c\/strong\u003e. The fittings are not installed on the ESC at the factory.\u003c\/p\u003e\n\n\u003cp\u003eThe ESC carries an \u003cstrong\u003eIP55 protection rating\u003c\/strong\u003e, offering resistance to dust ingress and water jets within the rating's specified limits. Unlike fully submersible-rated electronics, an IP55 ESC should not be treated as suitable for prolonged immersion.\u003c\/p\u003e\n\n\u003cp\u003eKeep electrical connectors insulated and protected, check the cooling system regularly, and dry exposed connections after wet operation.\u003c\/p\u003e\n\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eData Recording with Optional OTA Bluetooth\u003c\/h2\u003e\n\n\u003cp\u003eBeyond conventional ESC programming, the SeaKing Pro 70A G2 supports performance data recording to help users understand how their power system behaves during operation.\u003c\/p\u003e\n\n\u003cp\u003eThe ESC records extreme values, including maximum current, highest ESC temperature, minimum battery voltage, and maximum motor RPM.\u003c\/p\u003e\n\n\u003cp\u003eFor additional data monitoring, a compatible \u003cstrong\u003eHobbywing OTA Programmer\u003c\/strong\u003e can connect the ESC to the HW LINK mobile app. With the OTA module connected during a run, users can access real-time information and historical performance graphs.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f7f7f7;padding:15px 18px;margin:18px 0;border-left:3px solid #e60073;\"\u003e\n\u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong\u003eAvailable Performance Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eESC current\u003c\/li\u003e\n\u003cli\u003eBattery voltage\u003c\/li\u003e\n\u003cli\u003eESC temperature\u003c\/li\u003e\n\u003cli\u003eMotor RPM\u003c\/li\u003e\n\u003cli\u003eThrottle information\u003c\/li\u003e\n\u003cli\u003eHistorical graphs through the optional OTA module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Bluetooth connectivity is not built into this ESC. The optional OTA module is required for wireless app connection. Real-time and historical graph recording requires the OTA module to remain connected during operation.\u003c\/p\u003e\n\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003e14 Programmable Parameters \u0026amp; Firmware Updates\u003c\/h2\u003e\n\n\u003cp\u003eWith 14 programmable settings, the SeaKing Pro 70A G2 offers extensive control over acceleration, braking behavior, battery protection, motor timing, and receiver power output.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:18px;font-weight:700;color:#222;margin:20px 0 10px;\"\u003eSupported Programming Methods\u003c\/h3\u003e\n\n\u003cul style=\"padding-left:22px;margin:12px 0;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Program Box:\u003c\/strong\u003e Parameter adjustment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD Program Box Pro\/G2:\u003c\/strong\u003e Parameter adjustment and supported firmware updates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOTA Programmer:\u003c\/strong\u003e Wireless parameter adjustment, data access, and supported firmware updates through HW LINK.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFirmware upgrades can be performed using Hobbywing USB LINK software with a compatible LCD Program Box, or through the HW LINK mobile app using the required external programming hardware.\u003c\/p\u003e\n\n\u003cp\u003eThe LCD programming boxes and OTA Programmer are separate accessories. Firmware updates are not performed through a direct built-in Bluetooth connection.\u003c\/p\u003e\n\n    \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/12_118c818f-bf52-44da-985c-3324ded5303b.png\" alt=\"Hobbywing SeaKing Pro 70A G2 ESC firmware update methods using LCD Program Box Pro and OTA Programmer\"\u003e\u003c\/p\u003e\n \u003c\/div\u003e\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eInstallation \u0026amp; Connection Notes\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:18px;font-weight:700;color:#222;margin:20px 0 10px;\"\u003eBattery \u0026amp; Motor Connections\u003c\/h3\u003e\n\n\u003cp\u003eThe ESC is supplied without a pre-installed battery input connector. Its 14AWG red and black power wires must be connected to a suitable battery connector using correctly rated components and proper soldering techniques.\u003c\/p\u003e\n\n\u003cp\u003eThree 16AWG motor output wires terminate in 4.0mm female bullet connectors for connecting a compatible three-phase brushless motor.\u003c\/p\u003e\n\n\u003cp\u003eCorrect battery polarity is essential. Reversing the positive and negative battery connections can permanently damage the ESC.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:18px;font-weight:700;color:#222;margin:20px 0 10px;\"\u003eReceiver \u0026amp; AUX Connections\u003c\/h3\u003e\n\n\u003cp\u003eConnect the ESC's throttle cable to the receiver's throttle channel. The separate yellow signal cable can be connected to an available AUX channel to control Turbo Timing through the transmitter.\u003c\/p\u003e\n\n\u003cp\u003eDo not supply a second receiver power source without following the isolation procedure described in the official manual.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:18px;font-weight:700;color:#222;margin:20px 0 10px;\"\u003eFirst-Time ESC Calibration\u003c\/h3\u003e\n\n\u003cp\u003eThrottle-range calibration is required before first use and when changing the radio or receiver. The ESC supports calibration procedures for pistol-grip and stick transmitters.\u003c\/p\u003e\n\n\u003cp\u003eComplete throttle calibration, verify the motor direction, confirm the correct LiPo cell count, and check the cooling system before running the boat.\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eHobbywing SeaKing Pro 70A G2 Manual\u003c\/h2\u003e\n\n\u003cp\u003eFor complete installation instructions, throttle calibration, parameter settings, wiring diagrams, LED status codes, and troubleshooting, refer to the official user manual.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_SEAKING_Pro_70A_G2_Manual.pdf?v=1794475233\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#e60073;text-decoration:underline;font-weight:700;\"\u003eDownload Hobbywing SeaKing Pro 70A G2 User Manual (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\n\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 12px;border-bottom:1px solid #ddd;padding-bottom:8px;\"\u003eExplore More Hobbywing Marine ESCs\u003c\/h2\u003e\n\n\u003cp\u003eLooking for a different power range or marine ESC setup? Explore our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-seaking-escs\" style=\"color:#e60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing SeaKing ESC collection\u003c\/a\u003e to compare controllers for mini racing boats, recreational RC boats, and high-power marine applications.\u003c\/p\u003e\n\n\u003cp\u003eYou can also browse our complete selection of \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/rc-boat-escs\" style=\"color:#e60073;text-decoration:underline;font-weight:700;\"\u003eRC boat ESCs\u003c\/a\u003e to find a suitable electronic speed controller for your motor, battery voltage, and boat configuration.\u003c\/p\u003e\n\n  \n  \n\u003ch2 style=\"font-size:22px;font-weight:700;color:#111;margin:34px 0 14px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eWhat batteries are compatible with the Hobbywing SeaKing Pro 70A G2?\u003c\/h3\u003e\n\u003cp\u003eThe ESC supports 2S, 3S, and 4S LiPo batteries. Choose a battery that also meets the motor's voltage requirements, the boat's installation constraints, and the expected current demand.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eIs the SeaKing Pro 70A G2 waterproof?\u003c\/h3\u003e\n\u003cp\u003eIt has an IP55 protection rating. This provides resistance to dust and water jets within defined limits but does not make the ESC suitable for prolonged underwater operation or immersion.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eDoes the SeaKing Pro 70A G2 have built-in Bluetooth?\u003c\/h3\u003e\n\u003cp\u003eNo. Wireless connectivity to the HW LINK app requires a compatible external Hobbywing OTA Programmer, sold separately.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eWhat does the yellow AUX cable do?\u003c\/h3\u003e\n\u003cp\u003eThe yellow signal cable allows a compatible transmitter AUX channel to activate or deactivate the configured Turbo Timing function during operation.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eCan this ESC run a boat in reverse?\u003c\/h3\u003e\n\u003cp\u003eYes. Forward and Reverse is available as a programmable running mode. However, reversing should only be enabled when the boat's motor and drivetrain arrangement support reverse rotation. Some flexible-shaft systems may be damaged by reversing.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eDoes the ESC support water cooling?\u003c\/h3\u003e\n\u003cp\u003eYes. The ESC has provisions for installing water-cooling fittings, which are supplied separately from the preassembled ESC body. The cooling arrangement should be selected according to the boat's expected operating load.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eCan I update the ESC firmware?\u003c\/h3\u003e\n\u003cp\u003eYes. Firmware updates are supported through compatible Hobbywing LCD Program Box Pro\/G2 hardware or an OTA Programmer, using the appropriate Hobbywing software or app.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eWhat are the exact dimensions of the SeaKing Pro 70A G2?\u003c\/h3\u003e\n\u003cp\u003eThe specified ESC body dimensions are 38.5mm long × 30mm wide × 8.4mm high. These measurements exclude the water-cooling port and the capacitor extension. Allow additional installation clearance for wiring and connected components.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:17px;font-weight:700;color:#222;margin:18px 0 7px;\"\u003eWhat RC boats is the Hobbywing SeaKing Pro 70A G2 designed for?\u003c\/h3\u003e\n\u003cp\u003eIts principal applications are Mini Mono, Mini ECO, and Mini Hydro competition boats. The suitability of a particular installation also depends on the motor, battery, propeller load, and cooling conditions.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\n","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67944922382550,"sku":"30302560 GL","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_abfe96fe-9fdb-4ce8-bfd5-87ea0b0a4dcf.webp?v=1794475622"},{"product_id":"hobbywing-seaking-pro-120a-esc","title":"Hobbywing SeaKing Pro 120A 2-6S Brushless Marine ESC","description":"\u003cstyle\u003e\n.cnhl-esc-content {\n  line-height: 1.7;\n  color: #222;\n}\n\n.cnhl-esc-content h2 {\n  font-size:18px;\n  font-weight:700;\n  margin:24px 0 10px;\n  color:#000;\n  border-bottom:1px solid #eee;\n  padding-bottom:6px;\n}\n\n.cnhl-esc-content h3 {\n  font-size:15px;\n  font-weight:bold;\n  margin:14px 0 8px;\n  color:#000;\n}\n\n.cnhl-esc-table-wrap {\n  width:100%;\n  overflow-x:auto;\n  -webkit-overflow-scrolling:touch;\n  margin:14px 0 20px;\n}\n\n.cnhl-esc-table {\n  width:100%;\n  min-width:620px;\n  border-collapse:collapse;\n  font-size:14px;\n  line-height:1.5;\n}\n\n.cnhl-esc-table th,\n.cnhl-esc-table td {\n  padding:10px 12px;\n  border:1px solid #ddd;\n  text-align:left;\n  vertical-align:top;\n}\n\n.cnhl-esc-table th {\n  width:34%;\n  background:#E60073;\n  color:#fff;\n  font-weight:700;\n}\n\n.cnhl-esc-table td {\n  background:#f2f2f2;\n}\n\n.cnhl-fit-box {\n  background:#f7f7f7;\n  padding:14px 16px;\n  margin:16px 0;\n  border-left:4px solid #E60073;\n  font-size:14px;\n  line-height:1.65;\n}\n\n.cnhl-img {\n  margin:20px 0;\n  text-align:left;\n}\n\n.cnhl-img img {\n  width:auto;\n  height:auto;\n  max-width:100%;\n  display:block;\n}\n\n.cnhl-esc-link {\n  color:#E60073;\n  text-decoration:underline;\n}\n\u003c\/style\u003e\n\n\n\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;color:#222;font-size:15px;line-height:1.75;max-width:100%;\"\u003e\n  \u003cp style=\"margin:0 0 16px;\"\u003eThe \u003cstrong\u003eHobbywing SeaKing Pro 120A\u003c\/strong\u003e is a water-cooled, sensorless brushless marine ESC built for competitive RC boats. With \u003cstrong\u003e120A continuous output, 760A peak output (0.1 second), and 2–6S LiPo compatibility\u003c\/strong\u003e, it combines a low-profile layout with flexible throttle tuning, a programmable Turbo function, and a switch-mode BEC for receiver and servo power.\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:28px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eQuick Fit Check\u003c\/h2\u003e\n  \u003cdiv style=\"background:#fff7fb;border-left:4px solid #e60073;padding:14px 16px;margin:0 0 20px;\"\u003e\n    \u003cp style=\"margin:0 0 7px;\"\u003e\u003cstrong\u003eBest suited for:\u003c\/strong\u003e ECO, Mono1 and other competition RC boats up to 100 cm in length, subject to the motor and drivetrain load.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 7px;\"\u003e\u003cstrong\u003eBattery:\u003c\/strong\u003e 2–6S LiPo or 6–18-cell NiMH; 120A continuous \/ 760A peak (0.1 second).\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 7px;\"\u003e\u003cstrong\u003eMotor:\u003c\/strong\u003e Sensorless brushless motor; three 4.0 mm female gold motor connectors.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 7px;\"\u003e\u003cstrong\u003eBattery connector:\u003c\/strong\u003e Not preinstalled; select and solder a connector rated for the intended system current.\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eCooling and fit:\u003c\/strong\u003e Water-cooled; 96.6 × 37.9 × 10.3 mm (L × W × H), 87.5 g; 5.5 mm outer-diameter cooling tube.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eHobbywing SeaKing Pro 120A Specifications\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px!important;font-size:14px;line-height:1.55;table-layout:fixed;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd style=\"width:39%;background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eBrand \/ Model\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eHobbywing SeaKing Pro 120A\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eStock Number\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e30302361\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eESC Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eBrushless, sensorless marine ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e120A \/ 760A (peak for 0.1 s)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eSupported Battery\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e2–6S LiPo \/ 6–18-cell NiMH\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eBuilt-in BEC\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSwitch-mode; selectable 6.0V \/ 7.4V; 4A continuous \/ 8A peak\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eWater Resistance\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eIP55; nano-coated, splash-resistant electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eCooling\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eWater-cooled heatsink with heat-conductive copper bars\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eCooling Tube I.D. \/ O.D.\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e2.0 mm \/ 5.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e96.6 × 37.9 × 10.3 mm (with extended water-cooling tube)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e87.5 g\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eBattery Input Leads\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e12AWG, 200 mm (1 red + 1 black)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eMotor Output Leads\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e12AWG, 150 mm × 3 (black)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eBattery Input Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNone (installation required)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eMotor Output Connectors\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003e4.0 mm female gold connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eESC Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eTransmitter, compatible multifunction LCD program box, WiFi module or supported OTA programmer\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eLED Program Box\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eProgramming Connection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSeparate programming wire; follow the manual's wiring instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eFirmware Upgrades\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eSupported with compatible external programming hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"background:#e60073;color:#fff;padding:10px 12px;font-weight:700;\"\u003eRecommended Applications\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;\"\u003eECO, Mono1 and other racing boats ≤100 cm, with suitable power systems\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eBuilt for Lightweight RC Boat Racing\u003c\/h2\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eAt just 87.5 g, the SeaKing Pro 120A helps keep weight under control in racing hulls where component placement, balance and available space matter. The sensorless controller supports both \u003cstrong\u003eForward Only\u003c\/strong\u003e for race-oriented setups and \u003cstrong\u003eForward\/Reverse\u003c\/strong\u003e where the boat's drivetrain is designed to reverse safely.\u003c\/p\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eIts water-cooled heatsink works with heat-conductive copper bars to move heat away from the power electronics. The cooling circuit must be connected and kept clear during use; water-cooling performance depends on the boat's installation and water flow.\u003c\/p\u003e\n\n  \n      \u003cdiv class=\"cnhl-img\"\u003e\n \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/05_ebbd50fe-7934-4182-bfd2-d95ed49d117c.png?v=1794478192\" alt=\"Hobbywing SeaKing Pro 120A 2-6S ESC Programmable Turbo Acceleration and Throttle Control\"\u003e\u003c\/p\u003e\n \u003c\/div\u003e\n  \n\n  \n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eProgrammable Turbo Acceleration and Throttle Control\u003c\/h2\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing Pro 120A includes a \u003cstrong\u003eTurbo Acceleration\u003c\/strong\u003e mode that activates a separately programmed Turbo Timing value when a valid auxiliary receiver-channel signal is received. This provides an additional tuning option for acceleration out of a turn or along a straight, rather than applying the same advanced timing at all times.\u003c\/p\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eTo use Turbo, connect the dedicated yellow Turbo signal wire to an appropriate auxiliary receiver channel, such as CH3 or CH4, and configure the transmitter accordingly. \u003cstrong\u003eTurbo Timing must be higher than General Timing\u003c\/strong\u003e for the feature to increase timing. Increase settings carefully while monitoring motor and ESC temperature.\u003c\/p\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eOther adjustments include five Punch levels, General Timing, Turbo Timing and selectable PWM frequency. Higher punch or timing settings can increase battery demand and operating heat, so the best configuration depends on your motor, propeller and cooling system.\u003c\/p\u003e\n\n  \n          \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/02_7244ac11-5c50-4eae-913c-8b43e2b2b59b.png?v=1794478284\" alt=\"Hobbywing SeaKing Pro 120A 2-6S ESC Switch-Mode BEC for Receiver and Servo Power\"\u003e\u003c\/p\u003e\n   \u003c\/div\u003e\n  \n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eSwitch-Mode BEC for Receiver and Servo Power\u003c\/h2\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eThe integrated BEC provides \u003cstrong\u003e6.0V or 7.4V selectable output, rated at 4A continuous and 8A peak\u003c\/strong\u003e. This allows the ESC to power a suitable receiver and steering servo without a separate receiver battery. Select 7.4V only when the connected servo and receiver support that voltage; ordinary 6V servos may be damaged by an unsuitable setting.\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eSplash-Resistant Design and Protective Functions\u003c\/h2\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eThe SeaKing Pro 120A uses a nano-coated circuit board and carries an \u003cstrong\u003eIP55\u003c\/strong\u003e water-resistance rating. It is designed for wet marine environments, but IP55 should not be confused with an IP67 immersion rating. Dry exposed connectors after contact with water to minimize corrosion.\u003c\/p\u003e\n  \u003cul style=\"padding-left:23px;margin:0 0 17px;\"\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003e\n\u003cstrong\u003eLow-voltage protection:\u003c\/strong\u003e Reduces output to 50% when the configured battery cutoff condition is triggered.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003e\n\u003cstrong\u003eESC thermal protection:\u003c\/strong\u003e Reduces output to 50% above the selected internal-temperature threshold and restores normal output after cooling.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003e\n\u003cstrong\u003eThrottle signal loss protection:\u003c\/strong\u003e Stops motor output when the ESC loses the throttle signal.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \n            \u003cdiv class=\"cnhl-img\"\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/07_332d0f75-76e7-4b99-9e70-30789e439bec.png\" alt=\"Hobbywing SeaKing Pro 120A 2-6S ESC Programming and Firmware Updates\"\u003e\u003c\/p\u003e\n   \u003c\/div\u003e\n  \n  \n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eProgramming and Firmware Updates\u003c\/h2\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eYou can program core parameters with a compatible transmitter or a supported Hobbywing multifunction LCD program box. The manufacturer also lists support for a \u003cstrong\u003eWiFi module and OTA programmer\u003c\/strong\u003e, which require separate hardware; this model does \u003cstrong\u003enot\u003c\/strong\u003e have built-in Bluetooth. Firmware updating is supported with compatible programming accessories and software.\u003c\/p\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eThe manual explains ten setup items: Running Mode, LiPo Cells, Cutoff Voltage, ESC Thermal Protection, BEC Voltage, Start Mode (Punch), General Timing, Turbo Acceleration, Turbo Timing and PWM Frequency. A basic LED program box is not supported.\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eBattery, Motor and Installation Notes\u003c\/h2\u003e\n  \u003cul style=\"padding-left:23px;margin:0 0 17px;\"\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003eChoose a \u003cstrong\u003e2–6S LiPo\u003c\/strong\u003e with adequate discharge capability for your complete boat setup. LiPo cell count alone does not determine motor or propeller compatibility.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003eNo battery-side power connector is factory fitted. Install a suitable high-current connector with correct polarity and properly insulated solder joints.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003eThe three motor leads terminate in 4.0 mm female gold connectors. Ensure the motor's mating connectors are compatible.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003eConnect appropriate silicone water tubing to the 5.5 mm outer-diameter cooling fittings. The user manual states silicone tubing must be supplied by the user.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003eCalibrate the throttle range when first installing the ESC, changing transmitters or modifying throttle-channel endpoints.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom:7px;\"\u003eFor a fixed LiPo cell count, manually selecting the cell count helps avoid automatic detection errors caused by a partially charged pack.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eSeaKing Pro 120A Manual (PDF)\u003c\/h2\u003e\n  \u003cp style=\"margin:0 0 14px;\"\u003eFor wiring diagrams, throttle calibration, the complete programming chart, warning tones and troubleshooting, refer to the \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_Seaking_Pro_120A_ESC_Manual.pdf?v=1794477426\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#e60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing SeaKing Pro 120A \/ 160A User Manual (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n  \u003ch3 style=\"font-size:17px;color:#111;margin:16px 0 6px;\"\u003eCan the SeaKing Pro 120A run on a 6S LiPo battery?\u003c\/h3\u003e\n  \u003cp style=\"margin:0 0 12px;\"\u003eYes. It supports 2–6S LiPo packs. Check motor voltage, propeller load, cooling and the battery's available discharge current before selecting 6S.\u003c\/p\u003e\n  \u003ch3 style=\"font-size:17px;color:#111;margin:16px 0 6px;\"\u003eDoes this ESC include a battery connector?\u003c\/h3\u003e\n  \u003cp style=\"margin:0 0 12px;\"\u003eNo. Its red and black 12AWG battery input wires are supplied without a battery plug, so an appropriate connector must be fitted.\u003c\/p\u003e\n  \u003ch3 style=\"font-size:17px;color:#111;margin:16px 0 6px;\"\u003eDoes it have built-in Bluetooth or support a basic LED program box?\u003c\/h3\u003e\n  \u003cp style=\"margin:0 0 12px;\"\u003eIt has no built-in Bluetooth, and a basic LED program box is not supported. Compatible external LCD, WiFi or OTA programming accessories may be used according to the manufacturer's compatibility instructions.\u003c\/p\u003e\n  \u003ch3 style=\"font-size:17px;color:#111;margin:16px 0 6px;\"\u003eIs the SeaKing Pro 120A IP67 waterproof?\u003c\/h3\u003e\n  \u003cp style=\"margin:0 0 12px;\"\u003eNo. Hobbywing specifies an IP55 rating and nano-coated splash-resistant electronics. Keep connections protected and dry connectors after exposure to water.\u003c\/p\u003e\n  \u003ch3 style=\"font-size:17px;color:#111;margin:16px 0 6px;\"\u003eCan Turbo Acceleration be used with a standard two-channel radio?\u003c\/h3\u003e\n  \u003cp style=\"margin:0 0 12px;\"\u003eTurbo is designed to be activated using a dedicated auxiliary-channel signal, commonly CH3 or CH4. An appropriate additional transmitter and receiver channel is required for that control method.\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size:21px;font-weight:700;color:#111;margin:30px 0 12px;border-bottom:2px solid #e60073;padding-bottom:8px;\"\u003eExplore More RC Boat Power Components\u003c\/h2\u003e\n  \u003cp style=\"margin:0 0 9px;\"\u003eCompare related controllers in our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\" style=\"color:#e60073;text-decoration:underline;\"\u003eHobbywing ESC collection\u003c\/a\u003e or browse the wider \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/rc-escs\" style=\"color:#e60073;text-decoration:underline;\"\u003eRC ESC selection\u003c\/a\u003e.\u003c\/p\u003e\n  \u003cp style=\"margin:0 0 5px;\"\u003eBuilding a complete marine power system? Explore \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/rc-boat-battery\" style=\"color:#e60073;text-decoration:underline;\"\u003eRC boat LiPo batteries\u003c\/a\u003e, then match pack voltage, connector configuration, dimensions and discharge capability to your boat.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":67945036677334,"sku":"30302361 GL","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001.avif?v=1794477619"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/collections\/002_9031d4f7-ba07-4bc4-8ac4-c7d1507a94f1.png?v=1794479762","url":"https:\/\/chinahobbyline.com\/fi\/collections\/hobbywing-seaking-escs.oembed","provider":"ChinaHobbyLine","version":"1.0","type":"link"}