{"title":"External BEC \u0026 UBEC for RC Models","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\u003eAn \u003cstrong\u003eexternal BEC\u003c\/strong\u003e or \u003cstrong\u003eUBEC\u003c\/strong\u003e provides stable receiver and servo power for RC models when the ESC’s built-in BEC is not enough, not available, or should be separated from the motor control system. This collection includes compact and high-current switching BEC options for RC airplanes, helicopters, boats, cars, crawlers, and custom RC builds.\u003c\/p\u003e\n\n\u003cp class=\"collapsible\"\u003eChoose a small 3A or 5A UBEC for lightweight receiver-power setups, or move to a 10A HV or 25A HV UBEC for larger aircraft, HV servos, OPTO ESC systems, and servo-heavy models. Always match the BEC output voltage to your receiver, gyro, flight controller, and servo specifications.\u003c\/p\u003e\n\n\u003cp class=\"collapsible\"\u003eWhether you are building a 2S park flyer, an 8S aircraft, a 14S power system, or a large 18S model with multiple servos, a properly selected external BEC helps keep your receiver-side electronics powered more reliably.\u003c\/p\u003e\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-3a-ubec-5v-6v-external-bec","title":"Hobbywing 3A UBEC 5V\/6V External Switching BEC for 2-6S LiPo RC Models","description":"\u003cp\u003e\u003cimg style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_0b118a95-00a5-4c13-8dd0-266f286cd685.jpg\" alt=\"Hobbywing 3A UBEC 5V\/6V external switching BEC for 2-6S LiPo RC models\"\u003e\u003c\/p\u003e\n\n\n\u003cp\u003eThe \u003cstrong\u003eHobbywing 3A UBEC 5V\/6V External Switching BEC for 2-6S LiPo RC Models\u003c\/strong\u003e is a compact external receiver-power regulator designed for RC setups that need stable voltage for receivers, gyros, servos, and other onboard electronics. It draws power from a 2S to 6S LiPo battery and converts it into a safe, consistent \u003cstrong\u003e5V or 6V output at up to 3A\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThis external switching BEC is useful when your ESC has no built-in BEC, when you are using an OPTO ESC, or when the ESC’s built-in BEC is not strong enough for your servo load. Compared with a traditional linear BEC, the switch-mode design offers higher efficiency on higher-voltage setups, especially 4S, 5S, and 6S LiPo systems.\u003c\/p\u003e\n\n\u003cp\u003eWith switchable 5V\/6V output, 2-6S LiPo input support, reverse polarity protection, and EMI reduction design, this Hobbywing UBEC is a practical power accessory for RC airplanes, helicopters, boats, cars, crawlers, and custom RC models.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width: 100%; display: block; overflow-x: auto; border-collapse: separate !important; border-spacing: 0 8px !important; font-size: 14px; line-height: 1.3;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eHobbywing 3A UBEC 5V\/6V External Switching BEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eUBEC-3A-6S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e86010010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eBEC Type\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eExternal switch-mode UBEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eContinuous Output Current\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003ePeak Output Current\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e5A \/ 10 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e5V\/3A or 6V\/3A, switchable by jumper cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e5.5V-26V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eBattery Compatibility\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e2-6S LiPo \/ 5-18 cells NiMH or NiCd\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eRipple\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e\u0026lt;50mVp-p @ 2A \/ 12V input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e41.6 × 16.6 × 7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e11g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3A external UBEC:\u003c\/strong\u003e Provides stable receiver and servo power for RC models that need a separate BEC solution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V\/6V switchable output:\u003c\/strong\u003e Select 5V or 6V output using the jumper cap to match your receiver and servo requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-6S LiPo input support:\u003c\/strong\u003e Works with common 2S, 3S, 4S, 5S, and 6S LiPo power systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch-mode efficiency:\u003c\/strong\u003e More efficient than a traditional linear BEC, especially when used with higher-voltage LiPo packs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5A peak current:\u003c\/strong\u003e Supports short burst current demand up to 5A for 10 seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMI reduction design:\u003c\/strong\u003e Shielded electronics and output filtering help reduce electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection:\u003c\/strong\u003e If battery polarity is connected incorrectly, the UBEC will not work but is designed to avoid damage from that mistake.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and lightweight:\u003c\/strong\u003e Small 11g design makes it easy to install in airplanes, helicopters, boats, cars, and other RC models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eWhen Should You Use This Hobbywing 3A UBEC?\u003c\/h2\u003e\n\n\u003cp\u003eUse this Hobbywing 3A UBEC when your RC model needs a stable external BEC instead of relying only on the ESC’s built-in BEC. It is especially helpful for models with multiple servos, higher-voltage LiPo setups, OPTO ESCs, or receiver systems that require a cleaner and more reliable power path.\u003c\/p\u003e\n\n\u003cp\u003eFor 4S to 6S LiPo systems, a switching BEC is often a better choice than a linear BEC because it reduces wasted heat and improves efficiency. This makes the UBEC-3A-6S a practical option for RC airplanes, helicopters, boats, crawlers, and custom builds where receiver-power stability matters.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eInstallation Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eConnect the UBEC input wires to the main battery power source.\u003c\/li\u003e\n\u003cli\u003ePlug the UBEC output lead into a spare receiver channel or receiver power input port.\u003c\/li\u003e\n\u003cli\u003eIf your ESC has no built-in BEC, no ESC-side BEC change is required.\u003c\/li\u003e\n\u003cli\u003eIf your ESC already has a built-in BEC, disable the ESC’s BEC before using this external UBEC.\u003c\/li\u003e\n\u003cli\u003eKeep the UBEC at least 5cm away from the receiver to reduce possible electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eCheck your receiver and servo specifications before selecting 5V or 6V output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eUser Manual\u003c\/h2\u003e\n\n\u003cp\u003eFor wiring details, setup notes, and installation guidance, please refer to the official \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/UBEC3A2-6S.pdf\" target=\"_blank\"\u003eHobbywing 3A UBEC user manual\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eRecommended Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eRC airplanes using 2S to 6S LiPo power systems\u003c\/li\u003e\n\u003cli\u003eRC helicopters with receiver, gyro, and servo power demand\u003c\/li\u003e\n\u003cli\u003eRC boats or cars using external receiver-power setups\u003c\/li\u003e\n\u003cli\u003eOPTO ESC systems that require a separate BEC\u003c\/li\u003e\n\u003cli\u003eCustom RC models where stable 5V\/6V electronics power is needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more ESC and power-system options, explore our \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\"\u003eHobbywing ESCs\u003c\/a\u003e, \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e, and \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/external-bec-ubec\"\u003eExternal BEC \u0026amp; UBEC\u003c\/a\u003e collections.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eWhat is this Hobbywing 3A UBEC used for?\u003c\/h3\u003e\n\u003cp\u003eThis Hobbywing 3A UBEC is used to power your receiver, gyro, servos, and other onboard electronics from a stable 5V or 6V output. It is useful when your ESC has no BEC, when the built-in BEC is not strong enough, or when you want a separate receiver-power solution.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eCan I use this UBEC with a 6S LiPo battery?\u003c\/h3\u003e\n\u003cp\u003eYes. This UBEC supports 2-6S LiPo input, with an input voltage range of 5.5V to 26V.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eShould I choose 5V or 6V output?\u003c\/h3\u003e\n\u003cp\u003eChoose 5V for standard receiver and servo setups that require 5V power. Choose 6V only if your receiver, gyro, and servos support 6V operation. Always check the electronics specifications before changing the jumper setting.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eDo I need to disable the ESC’s built-in BEC?\u003c\/h3\u003e\n\u003cp\u003eYes, if your ESC already has a built-in BEC and you want this UBEC to power the receiver, the ESC’s built-in BEC should be disabled first. This avoids powering the receiver from two BEC outputs at the same time.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eIs this the same as an ESC?\u003c\/h3\u003e\n\u003cp\u003eNo. This product is not an ESC. It does not control the motor. It is an external BEC used to provide stable power to the receiver, servos, gyro, and other low-voltage electronics.\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":48552939389142,"sku":"UBEC-3A-6S GL","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/01_a7454aa2-cb05-47cb-860c-e45a10372c87.avif?v=1783405911"},{"product_id":"hobbywing-ubec-25a-hv-external-bec","title":"Hobbywing UBEC 25A HV 5.2V\/6V\/7.4V\/8.4V External Switching BEC for 3-18S LiPo","description":"\u003cp\u003eThe \u003cstrong\u003eHobbywing UBEC 25A HV 5.2V\/6V\/7.4V\/8.4V External Switching BEC for 3-18S LiPo\u003c\/strong\u003e is a high-current external BEC designed for large RC aircraft, helicopters, and demanding receiver-power systems. It draws power from a \u003cstrong\u003e3S to 18S LiPo main battery\u003c\/strong\u003e and converts it into stable receiver-side voltage for servos, receivers, gyros, flight controllers, and other onboard electronics.\u003c\/p\u003e\n\n\u003cp\u003eWith \u003cstrong\u003e25A continuous current\u003c\/strong\u003e and up to \u003cstrong\u003e50A peak current\u003c\/strong\u003e, this HV UBEC is built for servo-heavy models where a small internal ESC BEC is not enough. The high-efficiency DC-DC regulator design offers more than 90% conversion efficiency, while the metal case helps with heat dissipation and reduces electromagnetic interference.\u003c\/p\u003e\n\n\u003cp\u003eThis UBEC also supports a \u003cstrong\u003e1S to 2S LiPo backup power supply\u003c\/strong\u003e. If the main power supply or UBEC power path fails, the connected electronics can continue receiving power from the backup battery, making it a strong option for large fixed-wing aircraft, helicopters, and high-value RC builds where receiver-power reliability matters.\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cimg style=\"max-width: 100%; height: auto; display: block; margin: 24px auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/01_240677a0-d4b0-489a-b183-bb00d02adb86.png\" alt=\"Hobbywing UBEC 25A HV metal case external BEC with powerful 25A 50A core component\"\u003e\n\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width: 100%; display: block; overflow-x: auto; border-collapse: separate !important; border-spacing: 0 8px !important; font-size: 14px; line-height: 1.3;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eHobbywing UBEC 25A HV External Switching BEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eUBEC-25A-HV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e30606000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eBEC Type\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eExternal switch-mode HV UBEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eMain Input Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e3S-18S LiPo \/ 9V-80V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eBackup Input Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e1S-2S LiPo \/ 3V-9V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e5.2V \/ 6.0V \/ 7.4V \/ 8.4V, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eContinuous 25A, peak 50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Channels\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eUp to 8-channel parallel outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eEfficiency\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eMore than 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eMain Input Wires\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eRed 16AWG 270mm × 1 \/ Black 16AWG 270mm × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Interface\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e3P vertical pin header; four 3P-JR male connector wires included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eInput Connectors\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Connectors\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e55 × 40.2 × 17.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e74g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eElegant Look \u0026amp; Powerful Core Component\u003c\/h2\u003e\n\n\u003cp\u003eThe Hobbywing UBEC 25A HV uses an elegant metal case that helps dissipate heat and reduce electromagnetic interference. Inside, the high-efficiency DC-DC voltage-regulating chip works with a specially designed circuit to deliver more than 90% conversion efficiency.\u003c\/p\u003e\n\n\u003cp\u003eIts \u003cstrong\u003e25A continuous current\u003c\/strong\u003e and \u003cstrong\u003e50A peak current\u003c\/strong\u003e meet the needs of demanding receiver-power systems, especially large helicopters, large fixed-wing aircraft, and models using multiple servos or high-current HV servo setups.\u003c\/p\u003e\n\n\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eVarious Functions \u0026amp; Different Applications\u003c\/h2\u003e\n\n\u003cp\u003eAn external switch allows users to turn the UBEC output on or off easily. The wide voltage input range allows the main power supply from \u003cstrong\u003e3S to 18S LiPo\u003c\/strong\u003e to be connected to the UBEC, making it suitable for high-voltage RC aircraft power systems.\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cimg style=\"max-width: 100%; height: auto; display: block; margin: 24px auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/02_99542407-8b5c-48dd-9409-41befdf7c452.png\" alt=\"Hobbywing UBEC 25A HV external switch 3S to 18S LiPo input and adjustable output voltage for RC applications\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eThe output voltage is adjustable between \u003cstrong\u003e5.2V, 6.0V, 7.4V, and 8.4V\u003c\/strong\u003e, covering different receiver and servo voltage requirements. Up to \u003cstrong\u003e8 channels of parallel outputs\u003c\/strong\u003e can help distribute current to multiple connected devices, while the internal LED indicators show the working status of the UBEC and the backup power connection status.\u003c\/p\u003e\n\n\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eMultiple Protections\u003c\/h2\u003e\n\n\u003cp\u003eThis UBEC is designed with several protection functions for large RC models. BEC shoot-through protection helps prevent the main input voltage from directly flowing to the UBEC output if the UBEC is accidentally damaged, helping protect connected electronic devices.\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cimg style=\"max-width: 100%; height: auto; display: block; margin: 24px auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/004_d3f1de69-be0a-4fa8-a6f4-829cf582e3ab.png\" alt=\"Hobbywing UBEC 25A HV multiple protections including overcurrent short circuit overheat and low voltage cutoff\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eIt also includes \u003cstrong\u003eover-current protection\u003c\/strong\u003e, \u003cstrong\u003eoutput short-circuit protection\u003c\/strong\u003e, \u003cstrong\u003eoverheat protection\u003c\/strong\u003e, and \u003cstrong\u003elow-voltage cutoff protection\u003c\/strong\u003e. When the main power supply voltage drops below 9V, the UBEC activates low-voltage cutoff and can switch to the backup power supply if a backup battery is connected.\u003c\/p\u003e\n\n\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eBackup Power Supply\u003c\/h2\u003e\n\n\u003cp\u003eThe backup power supply function allows electronic devices connected to the UBEC to receive power directly from a backup battery when the main power supply is damaged or the UBEC fails due to internal faults. This helps maintain receiver-side operation in critical situations.\u003c\/p\u003e\n\n\u003cp\u003e\n  \u003cimg style=\"max-width: 100%; height: auto; display: block; margin: 24px auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/006_c2d37ce4-1837-4a5f-b6bf-c38bc14c223f.png\" alt=\"Hobbywing UBEC 25A HV backup power supply function for large RC aircraft receiver power\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eThe backup input supports \u003cstrong\u003e1S to 2S LiPo\u003c\/strong\u003e. When using a backup battery, make sure the UBEC output voltage is not set much lower than the backup battery voltage. For example, do not set the UBEC output to 5.2V while using a 2S LiPo backup battery with voltage higher than the connected electronics can safely handle.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eOutput Voltage Guide\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.2V output:\u003c\/strong\u003e Suitable for many standard receiver and servo systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.0V output:\u003c\/strong\u003e Suitable for receivers and servos that support 6V operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.4V output:\u003c\/strong\u003e Suitable for compatible HV receivers and HV servos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.4V output:\u003c\/strong\u003e Suitable only for compatible HV servo systems rated for 8.4V operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe output voltage can be changed with the built-in DIP switch. Always check the voltage rating of your receiver, gyro, flight controller, and servos before changing the UBEC output voltage.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eInstallation Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eConnect the UBEC main input wires in parallel with the main battery power supply.\u003c\/li\u003e\n\u003cli\u003eConnect a 1S to 2S LiPo backup battery if backup power operation is required.\u003c\/li\u003e\n\u003cli\u003ePlug the UBEC output into the receiver, flight controller, gyro, or servo power system as required by your model setup.\u003c\/li\u003e\n\u003cli\u003eIf your brushless ESC has no built-in BEC, no ESC-side BEC change is required.\u003c\/li\u003e\n\u003cli\u003eIf your brushless ESC already has a built-in BEC, disconnect the ESC’s BEC output before using this external UBEC.\u003c\/li\u003e\n\u003cli\u003eKeep the UBEC more than 5cm away from the receiver to reduce possible electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eThe external switch turns the UBEC output on or off, but it does not fully disconnect the backup power supply. To completely stop backup output, disconnect the backup battery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eUser Manual\u003c\/h2\u003e\n\n\u003cp\u003eFor wiring diagrams, DIP-switch voltage settings, backup power notes, LED indicator details, and safety instructions, please refer to the official \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_UBEC_25A_User_manual.pdf\" target=\"_blank\"\u003eHobbywing UBEC 25A HV user manual\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eRecommended Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eLarge RC helicopters using multiple servos\u003c\/li\u003e\n\u003cli\u003eLarge fixed-wing aircraft with high receiver-side power demand\u003c\/li\u003e\n\u003cli\u003e3S to 18S LiPo high-voltage aircraft power systems\u003c\/li\u003e\n\u003cli\u003eOPTO ESC systems that require a separate BEC\u003c\/li\u003e\n\u003cli\u003eHV servo setups using 7.4V or 8.4V receiver power\u003c\/li\u003e\n\u003cli\u003eCustom RC aircraft builds where backup receiver power is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more ESC and power-system options, explore our \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\"\u003eHobbywing ESCs\u003c\/a\u003e, \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e, and \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/external-bec-ubec\"\u003eExternal BEC \u0026amp; UBEC\u003c\/a\u003e collections.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eWhat is the Hobbywing UBEC 25A HV used for?\u003c\/h3\u003e\n\u003cp\u003eIt is used to provide stable power to receivers, servos, gyros, flight controllers, and other onboard electronics. It is especially useful for large helicopters, large fixed-wing aircraft, OPTO ESC setups, and servo-heavy models that need more receiver-side current than a small internal ESC BEC can provide.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eCan this UBEC be used with an 18S LiPo battery?\u003c\/h3\u003e\n\u003cp\u003eYes. The main input supports 3S to 18S LiPo, or 9V to 80V, making it suitable for high-voltage RC aircraft power systems.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eWhat is the backup power supply used for?\u003c\/h3\u003e\n\u003cp\u003eThe backup power supply allows connected electronics to receive power from a 1S to 2S LiPo backup battery if the main power supply is damaged, the main voltage drops too low, or the UBEC fails internally. It is designed to help maintain receiver-side operation in critical situations.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eShould I choose 5.2V, 6.0V, 7.4V, or 8.4V output?\u003c\/h3\u003e\n\u003cp\u003eChoose 5.2V for standard receiver and servo setups, 6.0V for electronics that support 6V operation, and 7.4V or 8.4V only for compatible HV receivers and HV servos. Always check the voltage rating of every connected device before changing the output voltage.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eDo I need to disable the ESC’s built-in BEC?\u003c\/h3\u003e\n\u003cp\u003eYes, if your ESC already has a built-in BEC and you want this external UBEC to power the receiver, the ESC’s BEC output should be disconnected first. This avoids powering the receiver from two BEC outputs at the same time.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eIs this product an ESC?\u003c\/h3\u003e\n\u003cp\u003eNo. This product is not an ESC and does not control the motor. It is an external HV switching BEC used to power receivers, servos, gyros, flight controllers, and other low-voltage electronics.\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":48553109487830,"sku":"UBEC-25A-HV GL","price":73.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/UBEC25A_2048x_ab297900-a434-4250-a116-34e5f5144432.webp?v=1783419879"},{"product_id":"hobbywing-10a-hv-ubec-3-14s-lipo","title":"Hobbywing 10A HV UBEC 6V\/7.4V\/8.4V External Switching BEC for 3-14S LiPo","description":"\u003cp\u003e\u003cimg style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/1_24e4c69a-01f4-4e20-8d97-4c786ad2f319.jpg\" alt=\"Hobbywing 10A HV UBEC external switching BEC for 3-14S LiPo RC aircraft\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHobbywing 10A HV UBEC 6V\/7.4V\/8.4V External Switching BEC for 3-14S LiPo\u003c\/strong\u003e is a high-voltage external DC voltage regulator designed to provide stable receiver and servo power for larger RC aircraft and other demanding RC setups. It draws power from a \u003cstrong\u003e3S to 14S LiPo battery\u003c\/strong\u003e and converts it into a safe, consistent output voltage for receivers, servos, gyros, and other onboard electronics.\u003c\/p\u003e\n\n\u003cp\u003eThis HV UBEC uses an efficient DC-DC regulator chip with a conversion efficiency of more than 90%. Compared with a traditional linear BEC, the switch-mode design helps reduce wasted heat and is better suited for high-voltage RC power systems, especially larger fixed-wing aircraft and servo-heavy builds.\u003c\/p\u003e\n\n\u003cp\u003eWith \u003cstrong\u003e6.0V, 7.4V, and 8.4V adjustable output\u003c\/strong\u003e, 10A continuous current, 25A instantaneous current, overcurrent protection, output short-circuit protection, and overheat protection, this Hobbywing 10A HV UBEC is a practical external BEC upgrade for large aircraft, OPTO ESC setups, and HV servo systems.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width: 100%; display: block; overflow-x: auto; border-collapse: separate !important; border-spacing: 0 8px !important; font-size: 14px; line-height: 1.3;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eHobbywing 10A HV UBEC External Switching BEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eUBEC-10A-HV(3-14S)-V1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eProduct Number\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e30608000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eBEC Type\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eExternal switch-mode HV UBEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e3-14S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e6.0V \/ 7.4V \/ 8.4V, 3 options adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eContinuous 10A, instantaneous 25A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eEfficiency\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eMore than 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eProtection Functions\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eOvercurrent protection, output short-circuit protection, overheat protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eRecommended Use\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eLarge RC fixed-wing aircraft, HV receiver and servo power systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e55 × 25 × 12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e35g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10A HV external UBEC:\u003c\/strong\u003e Provides stable receiver and servo power for larger RC aircraft and other high-demand RC models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-14S LiPo input:\u003c\/strong\u003e Supports high-voltage aircraft power systems where a small internal BEC may not be suitable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.0V \/ 7.4V \/ 8.4V adjustable output:\u003c\/strong\u003e Three voltage options make it suitable for different receiver, servo, and HV servo setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25A instantaneous current:\u003c\/strong\u003e Helps handle short current spikes from servo movement and receiver-side load changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency DC-DC regulator:\u003c\/strong\u003e More than 90% conversion efficiency helps reduce heat compared with traditional linear BEC designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection design:\u003c\/strong\u003e Includes overcurrent protection, output short-circuit protection, and overheat protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal shield structure:\u003c\/strong\u003e Helps with heat dissipation and reduces electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED status indicator:\u003c\/strong\u003e The red LED indicates whether the UBEC is outputting normal voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eWhen Should You Use This Hobbywing 10A HV UBEC?\u003c\/h2\u003e\n\n\u003cp\u003eUse this Hobbywing 10A HV UBEC when your RC aircraft needs stronger and more stable receiver power than the ESC’s built-in BEC can provide. It is especially useful for larger fixed-wing aircraft, high-voltage 6S to 14S power systems, OPTO ESC setups, HV servo systems, or models with multiple high-load servos.\u003c\/p\u003e\n\n\u003cp\u003eFor large aircraft or servo-heavy setups, relying only on a small internal BEC may create heat or voltage stability issues. A dedicated external switching BEC helps separate receiver and servo power from motor control, giving the electronics a more reliable power path.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eOutput Voltage Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.0V output:\u003c\/strong\u003e Suitable for receivers and servos that support 6V operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.4V output:\u003c\/strong\u003e Suitable only for compatible HV receivers and HV servos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.4V output:\u003c\/strong\u003e Suitable only for compatible HV servo systems rated for 8.4V operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e When using 8.4V output, 4S LiPo or higher input is recommended for more stable output. With 3S LiPo, the UBEC may not maintain stable 8.4V output as battery voltage drops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eInstallation Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eConnect the UBEC input wires in parallel with the main battery power supply.\u003c\/li\u003e\n\u003cli\u003ePlug the UBEC output lead into an idle receiver channel or receiver power input port.\u003c\/li\u003e\n\u003cli\u003eIf your brushless ESC has no built-in BEC, no ESC-side BEC change is required.\u003c\/li\u003e\n\u003cli\u003eIf your brushless ESC already has a built-in BEC, disconnect the ESC’s BEC output before using this external UBEC.\u003c\/li\u003e\n\u003cli\u003eKeep the UBEC more than 5cm away from the receiver to reduce possible electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eAlways check your receiver and servo voltage ratings before selecting 6.0V, 7.4V, or 8.4V output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eUser Manual\u003c\/h2\u003e\n\n\u003cp\u003eFor wiring diagrams, voltage adjustment instructions, safety notes, and setup guidance, please refer to the official \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_UBEC_10A_User_manual.pdf?v=1783418771\" target=\"_blank\"\u003eHobbywing 10A HV UBEC user manual\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eRecommended Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eLarge RC fixed-wing aircraft using 3S to 14S LiPo power systems\u003c\/li\u003e\n\u003cli\u003eAircraft with multiple servos or higher receiver-side power demand\u003c\/li\u003e\n\u003cli\u003eOPTO ESC systems that require a separate BEC\u003c\/li\u003e\n\u003cli\u003eHV servo setups that support 7.4V or 8.4V receiver power\u003c\/li\u003e\n\u003cli\u003eCustom RC aircraft builds where stable external HV BEC power is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more ESC and power-system options, explore our \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\"\u003eHobbywing ESCs\u003c\/a\u003e, \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e, and \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/external-bec-ubec\"\u003eExternal BEC \u0026amp; UBEC\u003c\/a\u003e collections.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eWhat is the Hobbywing 10A HV UBEC used for?\u003c\/h3\u003e\n\u003cp\u003eIt is used to provide stable power to the receiver, servos, gyro, and other onboard electronics. It is useful when the ESC has no built-in BEC, when the internal BEC is not strong enough, or when a separate high-current receiver-power solution is preferred.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eCan this UBEC be used with a 14S LiPo battery?\u003c\/h3\u003e\n\u003cp\u003eYes. This Hobbywing 10A HV UBEC supports 3-14S LiPo input, making it suitable for many larger RC aircraft power systems.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eShould I use 6V, 7.4V, or 8.4V output?\u003c\/h3\u003e\n\u003cp\u003eUse 6V for electronics that support 6V operation, 7.4V for compatible HV receivers and HV servos, and 8.4V only for HV servo systems rated for 8.4V operation. Always check your electronics specifications before changing the output voltage.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eCan I use 8.4V output with a 3S LiPo battery?\u003c\/h3\u003e\n\u003cp\u003eIt is not recommended if you need stable 8.4V output. As the 3S LiPo voltage drops during use, the UBEC may not be able to maintain a stable 8.4V output. For 8.4V output, 4S LiPo or higher input is recommended.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eDo I need to disable the ESC’s built-in BEC?\u003c\/h3\u003e\n\u003cp\u003eYes, if your ESC already has a built-in BEC and you want this external UBEC to power the receiver, the ESC’s BEC output should be disconnected first. This avoids powering the receiver from two BEC outputs at the same time.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eIs this product an ESC?\u003c\/h3\u003e\n\u003cp\u003eNo. This product is not an ESC and does not control the motor. It is an external switching HV BEC used to power the receiver, servos, gyro, and other low-voltage electronics.\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":48553336045782,"sku":"UBEC-10A-HV(3-14S)-V1 GL","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/UBEC-10A-HV_2048x_c4040e38-c495-4ba9-8f0c-200f2e834475.webp?v=1783418967"},{"product_id":"hobbywing-5a-ubec-v2-air-2-8s-lipo","title":"Hobbywing 5A UBEC V2 Air 5V\/6V\/7.4V External Switching BEC for 2-8S LiPo","description":"\u003cp\u003e\u003cimg style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/1_21072488-de9a-4cd1-a4eb-7adbc3a7138e.jpg\" alt=\"Hobbywing 5A UBEC V2 Air external switching BEC for 2-8S LiPo RC aircraft\"\u003e\u003c\/p\u003e\n\n\n\n\u003cp\u003eThe \u003cstrong\u003eHobbywing 5A UBEC V2 Air 5V\/6V\/7.4V External Switching BEC for 2-8S LiPo\u003c\/strong\u003e is an external switch-mode DC voltage regulator designed to provide stable power for receivers, servos, gyros, and other onboard electronics in RC aircraft and custom RC models. It takes power from a \u003cstrong\u003e2S to 8S LiPo battery\u003c\/strong\u003e and converts it into a safe receiver-side output voltage.\u003c\/p\u003e\n\n\u003cp\u003eThis UBEC uses an efficient DC-DC regulator chip with a conversion efficiency of more than 90%. Compared with a traditional linear BEC, the switching design helps reduce wasted heat and is better suited for higher-voltage RC power systems.\u003c\/p\u003e\n\n\u003cp\u003eWith \u003cstrong\u003e5.0V, 6.0V, and 7.4V adjustable output\u003c\/strong\u003e, 5A continuous current, 15A instantaneous current, overcurrent protection, output short-circuit protection, and overheat protection, this Hobbywing UBEC is a practical external BEC upgrade for fixed-wing aircraft, OPTO ESC setups, and servo-heavy RC builds.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width: 100%; display: block; overflow-x: auto; border-collapse: separate !important; border-spacing: 0 8px !important; font-size: 14px; line-height: 1.3;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eHobbywing 5A UBEC V2 Air External Switching BEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eUBEC-5A-V2-Air 2-8S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e30607000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eBEC Type\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eExternal switch-mode UBEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e2-8S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e5.0V \/ 6.0V \/ 7.4V, 3 options adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eContinuous 5A, instantaneous 15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eEfficiency\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eMore than 90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eProtection Functions\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eOvercurrent protection, output short-circuit protection, overheat protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eRecommended Use\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eRC fixed-wing aircraft, receiver and servo power systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e50 × 17 × 10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e21g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5A external UBEC:\u003c\/strong\u003e Provides stable receiver and servo power for RC aircraft and other models that need a separate BEC solution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-8S LiPo input:\u003c\/strong\u003e Supports a wide input range for medium and larger RC power systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.0V \/ 6.0V \/ 7.4V adjustable output:\u003c\/strong\u003e Three voltage options make it suitable for different receiver, servo, and HV servo setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15A instantaneous current:\u003c\/strong\u003e Helps handle short current spikes from servo movement and receiver-side load changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency DC-DC regulator:\u003c\/strong\u003e Conversion efficiency of more than 90% helps reduce heat compared with traditional linear BEC designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection design:\u003c\/strong\u003e Includes overcurrent protection, output short-circuit protection, and overheat protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal shield structure:\u003c\/strong\u003e Helps with heat dissipation and reduces electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED status indicator:\u003c\/strong\u003e The red LED indicates whether the UBEC is outputting normal voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eWhen Should You Use This Hobbywing 5A UBEC?\u003c\/h2\u003e\n\n\u003cp\u003eUse this Hobbywing 5A UBEC when your aircraft or RC model needs stronger and more stable receiver power than the ESC’s built-in BEC can provide. It is especially useful for fixed-wing aircraft with multiple servos, higher-voltage LiPo systems, OPTO ESC setups, or models using compatible HV servos.\u003c\/p\u003e\n\n\u003cp\u003eFor larger aircraft or servo-heavy setups, relying only on a small internal BEC may create heat or voltage stability issues. A dedicated external switching BEC helps separate receiver and servo power from motor control, giving the electronics a more reliable power path.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eOutput Voltage Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.0V output:\u003c\/strong\u003e Suitable for many standard receiver and servo setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.0V output:\u003c\/strong\u003e Suitable for receivers and servos that support 6V operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.4V output:\u003c\/strong\u003e Suitable only for compatible HV receivers and HV servos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e When using 7.4V output, 3S LiPo or higher input is recommended for more stable output. With 2S LiPo, the UBEC may not maintain stable 7.4V output as battery voltage drops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eInstallation Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eConnect the UBEC input wires in parallel with the main battery power supply.\u003c\/li\u003e\n\u003cli\u003ePlug the UBEC output lead into an idle receiver channel or receiver power input port.\u003c\/li\u003e\n\u003cli\u003eIf your brushless ESC has no built-in BEC, no ESC-side BEC change is required.\u003c\/li\u003e\n\u003cli\u003eIf your brushless ESC already has a built-in BEC, disconnect the ESC’s BEC output before using this external UBEC.\u003c\/li\u003e\n\u003cli\u003eKeep the UBEC more than 5cm away from the receiver to reduce possible electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eAlways check your receiver and servo voltage ratings before selecting 5.0V, 6.0V, or 7.4V output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eUser Manual\u003c\/h2\u003e\n\n\u003cp\u003eFor wiring diagrams, voltage adjustment instructions, safety notes, and setup guidance, please refer to the official \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_UBEC_5A_User_manual.pdf?v=1783417710\" target=\"_blank\"\u003eHobbywing 5A UBEC user manual\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eRecommended Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eRC fixed-wing aircraft using 2S to 8S LiPo power systems\u003c\/li\u003e\n\u003cli\u003eAirplanes with multiple servos or higher receiver-side power demand\u003c\/li\u003e\n\u003cli\u003eOPTO ESC systems that require a separate BEC\u003c\/li\u003e\n\u003cli\u003eHV servo setups that support 7.4V receiver power\u003c\/li\u003e\n\u003cli\u003eCustom RC aircraft builds where stable external BEC power is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more ESC and power-system options, explore our \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\"\u003eHobbywing ESCs\u003c\/a\u003e, \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e, and \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/external-bec-ubec\"\u003eExternal BEC \u0026amp; UBEC\u003c\/a\u003e collections.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eWhat is the Hobbywing 5A UBEC V2 Air used for?\u003c\/h3\u003e\n\u003cp\u003eIt is used to provide stable power to the receiver, servos, gyro, and other onboard electronics. It is useful when the ESC has no built-in BEC, when the internal BEC is not strong enough, or when a separate receiver-power solution is preferred.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eCan this UBEC be used with an 8S LiPo battery?\u003c\/h3\u003e\n\u003cp\u003eYes. This Hobbywing 5A UBEC supports 2-8S LiPo input, making it suitable for many medium and larger RC aircraft power systems.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eShould I use 5V, 6V, or 7.4V output?\u003c\/h3\u003e\n\u003cp\u003eUse 5V for standard receiver and servo systems, 6V for electronics that support 6V operation, and 7.4V only for compatible HV receivers and HV servos. Always check your electronics specifications before changing the output voltage.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eCan I use 7.4V output with a 2S LiPo battery?\u003c\/h3\u003e\n\u003cp\u003eIt is not recommended if you need stable 7.4V output. As the 2S LiPo voltage drops during use, the UBEC may not be able to maintain a stable 7.4V output. For 7.4V output, 3S LiPo or higher input is recommended.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eDo I need to disable the ESC’s built-in BEC?\u003c\/h3\u003e\n\u003cp\u003eYes, if your ESC already has a built-in BEC and you want this external UBEC to power the receiver, the ESC’s BEC output should be disconnected first. This avoids powering the receiver from two BEC outputs at the same time.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 18px 0 8px; color: #000;\"\u003eIs this product an ESC?\u003c\/h3\u003e\n\u003cp\u003eNo. This product is not an ESC and does not control the motor. It is an external switching BEC used to power the receiver, servos, gyro, and other low-voltage electronics.\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":48553564274902,"sku":"UBEC-5A-V2-Air  2-8S GL","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/UBEC-5A-Air_2048x_9e91bf51-2851-4b38-b303-795fdf597b46.webp?v=1783418344"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/collections\/External_BEC_UBEC_for_RC_Models.png?v=1783422769","url":"https:\/\/chinahobbyline.com\/da\/collections\/external-bec-ubec.oembed","provider":"ChinaHobbyLine","version":"1.0","type":"link"}