{"product_id":"hobbywing-quicrun-fusion-se-1800kv","title":"Hobbywing QUICRUN Fusion SE 1800KV FOC 2-in-1 40A ESC \u0026 Motor System for 1\/10 RC Crawlers","description":"\u003cp\u003eThe \u003cstrong\u003eHobbywing QUICRUN Fusion SE 1800KV\u003c\/strong\u003e combines a brushless ESC and 540-size motor into one compact FOC power system designed for 1\/10 RC crawlers and trail trucks. Its integrated layout reduces wiring clutter while delivering the smooth low-speed control, strong crawler torque and closed-loop RPM control that define Hobbywing's Fusion platform.\u003c\/p\u003e\n\n\u003cp\u003eWith \u003cstrong\u003e2-3S LiPo support\u003c\/strong\u003e, a 40A continuous current rating, adjustable 6V \/ 7.4V 4A BEC, IP67 protection, active drag brake adjustment and LED Program Box tuning, the Fusion SE is a practical choice for crawler builds where precise low-speed behavior matters more than maximum vehicle speed.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/1_58007cd1-36f7-406a-9aa2-c86435282680.png\" alt=\"Hobbywing QUICRUN Fusion SE 1800KV FOC 2-in-1 ESC and motor system for 1\/10 RC crawlers\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eQuick Fit Check\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBest suited for:\u003c\/strong\u003e 1\/10 RC crawlers, rock crawlers and scale trail trucks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e Sensored FOC brushless ESC + motor 2-in-1 system\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor KV:\u003c\/strong\u003e 1800KV\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous \/ Peak Current:\u003c\/strong\u003e 40A \/ 120A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2-3S LiPo or 6-9 cell NiMH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor size:\u003c\/strong\u003e 36mm diameter × 58.1mm length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft:\u003c\/strong\u003e 3.175mm diameter × 16.5mm exposed length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e 6V \/ 7.4V adjustable, 4A continuous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery connector:\u003c\/strong\u003e XT60\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtection rating:\u003c\/strong\u003e IP67\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgramming:\u003c\/strong\u003e Hobbywing LED Program Box\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Check motor clearance, mounting position, gearbox geometry and shaft dimensions before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px;font-size:14px;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eHobbywing QUICRUN Fusion SE 1800KV\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eProduct Number\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e30404317\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e1\/10 RC crawler\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eMotor \/ ESC Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eSensored FOC brushless ESC \u0026amp; motor 2-in-1 system\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e40A \/ 120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eBattery Support\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e2-3S LiPo \/ 6-9 cell NiMH\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eMotor KV\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e1800KV\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eMotor Poles\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e4 poles\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e6V \/ 7.4V adjustable, 4A continuous, switch-mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eMotor Diameter \/ Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e36mm × 58.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eShaft Diameter \/ Exposed Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e3.175mm \/ 16.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e201g including wires and connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003ePower Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eRed 14AWG 200mm × 1 \/ Black 14AWG 200mm × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eBattery Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eXT60\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eProtection Rating\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eProgramming Port\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eIndependent programming port located at the electronic switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eSupported Programmer\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eHobbywing LED Program Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eIntegrated ESC and Motor for a Cleaner Crawler Layout\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE integrates the ESC electronics into the motor assembly instead of using a conventional separate ESC and motor. This reduces the number of major components that need to be mounted inside the chassis and removes the three external motor phase wires normally required between a standalone ESC and brushless motor.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/2_9c9730a1-448c-4485-8144-4e04bd1f886c.png\" alt=\"Hobbywing QUICRUN Fusion SE integrated ESC and motor design with compact 58.1mm crawler power system\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eThe result is a simpler wiring layout that can free useful chassis space for the receiver, lighting controller, scale interior or other crawler electronics.\u003c\/p\u003e\n\n\u003cp\u003eIts motor body measures \u003cstrong\u003e36mm in diameter and 58.1mm long\u003c\/strong\u003e. The compact integrated format fits many 1\/10 crawler layouts, but chassis compatibility should still be checked individually rather than assuming universal fitment.\u003c\/p\u003e\n\n\u003ch2\u003eFOC Control for Smooth Low-Speed Crawling\u003c\/h2\u003e\n\n\u003cp\u003eThe QUICRUN Fusion SE uses \u003cstrong\u003eField-Oriented Control\u003c\/strong\u003e to manage motor torque smoothly across the crawler's low-speed range. The system is particularly useful when the vehicle needs to move slowly over rocks, roots and technical obstacles without abrupt throttle response.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/3_dc9fd871-218e-44a6-bdba-cf412ef32d8b.png\" alt=\"Hobbywing QUICRUN Fusion SE 1800KV FOC crawler motor with smooth low-speed torque control\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eFOC control gives the driver strong low-RPM torque and fine throttle modulation while maintaining a smooth, predictable driving feel. This makes the Fusion SE especially suited to crawling applications where precise movement is more important than maximum speed.\u003c\/p\u003e\n\n\u003ch2\u003eQuiet and Efficient Sine-Wave Drive\u003c\/h2\u003e\n\n\u003cp\u003eThe sine-wave drive strategy used by the Fusion SE helps the motor operate smoothly and quietly while reducing unnecessary electrical losses and heat.\u003c\/p\u003e\n\n\u003cp\u003eLower operating noise is particularly noticeable during technical crawling, where the vehicle spends much of its time running at low motor RPM. Improved efficiency can also help make better use of available battery energy, although actual runtime still depends on battery capacity, gearing, vehicle weight, terrain and driving style.\u003c\/p\u003e\n\n\u003ch2\u003eRPM \/ Throttle Matching for Controlled Climbing and Descending\u003c\/h2\u003e\n\n\u003cp\u003eWith \u003cstrong\u003eRPM \/ Throttle Matching enabled\u003c\/strong\u003e, the Fusion SE uses closed-loop speed control to automatically adjust motor torque as vehicle resistance changes.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/4_929d751e-2fbf-4fd9-8511-6f999ff17287.png\" alt=\"Hobbywing QUICRUN Fusion SE RPM Throttle Matching closed-loop control for crawler climbs and descents\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eWhen the crawler encounters a steeper climb or additional resistance, the system can increase torque output to keep vehicle speed closer to the driver's throttle request. On descents, the same closed-loop strategy provides a more controlled slow-downhill feel instead of allowing gravity alone to determine vehicle speed.\u003c\/p\u003e\n\n\u003cp\u003eWhen RPM \/ Throttle Matching is disabled, the system behaves more like a conventional sensored brushless ESC: changes in terrain load can cause vehicle speed to change accordingly.\u003c\/p\u003e\n\n\u003ch2\u003eAdjustable Drag Brake for Better Hill Holding\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE provides separate adjustment for \u003cstrong\u003eDrag Brake Force\u003c\/strong\u003e and \u003cstrong\u003eDrag Brake Rate\u003c\/strong\u003e, allowing the crawler's neutral-throttle braking behavior to be tuned for different terrain and driving styles.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/5_b75987eb-2bcc-4f9f-88ab-f6af2f39be03.png\" alt=\"Hobbywing QUICRUN Fusion SE adjustable drag brake force and drag brake rate for crawler hill holding\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrag Brake Force:\u003c\/strong\u003e Disabled plus Levels 1-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrag Brake Rate:\u003c\/strong\u003e Levels 1-9\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDrag Brake Force determines the final braking force applied when the throttle returns to neutral. Drag Brake Rate controls how quickly that braking force builds.\u003c\/p\u003e\n\n\u003cp\u003eThis separation allows a crawler to use strong holding force without necessarily applying that force abruptly, which can improve stability and drivetrain feel on steep technical sections.\u003c\/p\u003e\n\n\u003ch2\u003e2-3S LiPo Support\u003c\/h2\u003e\n\n\u003cp\u003eThe Hobbywing Fusion SE 1800KV supports \u003cstrong\u003e2S and 3S LiPo\u003c\/strong\u003e batteries as well as 6-9 cell NiMH packs.\u003c\/p\u003e\n\n\u003cp\u003eLiPo cell count can be detected automatically or manually selected. If the same battery cell count is used consistently, manually selecting the cell count can reduce the risk of a heavily discharged 3S pack being incorrectly identified as a charged 2S pack.\u003c\/p\u003e\n\n\u003ch2\u003eAdjustable 6V \/ 7.4V 4A BEC\u003c\/h2\u003e\n\n\u003cp\u003eThe integrated switch-mode BEC provides \u003cstrong\u003e4A continuous output\u003c\/strong\u003e with selectable \u003cstrong\u003e6V or 7.4V\u003c\/strong\u003e settings.\u003c\/p\u003e\n\n\u003cp\u003e6V is intended for conventional receiver and servo systems, while 7.4V can be used with compatible high-voltage equipment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e the 7.4V setting should only be used when the receiver, steering servo and every connected device support that voltage.\u003c\/p\u003e\n\n\u003cp\u003eFor the Fusion SE, \u003cstrong\u003ea 3S LiPo is required when a regulated 7.4V BEC output is needed\u003c\/strong\u003e. A 2S pack does not provide sufficient voltage headroom to maintain the full 7.4V output throughout its discharge cycle.\u003c\/p\u003e\n\n\u003ch2\u003eIP67 Protection for Wet and Dusty Trails\u003c\/h2\u003e\n\n\u003cp\u003eThe complete Fusion SE power system carries an \u003cstrong\u003eIP67 protection rating\u003c\/strong\u003e, giving it strong resistance to water and dust during normal crawler use.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/7_ec76eee7-ebec-4388-bc9c-c587e1884c5e.png\" alt=\"Hobbywing QUICRUN Fusion SE IP67 waterproof and dustproof 1\/10 crawler power system\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eThis makes the system suitable for trails involving splashes, mud, dust, snow and other demanding outdoor conditions.\u003c\/p\u003e\n\n\u003cp\u003eIP67 protection should not be interpreted as permission for prolonged underwater operation. Protection performance can also decline over time due to aging, impact damage, worn seals or improper maintenance. Clean and dry the vehicle after wet or muddy use and inspect wiring and connectors before storage.\u003c\/p\u003e\n\n\u003ch2\u003eNine Adjustable ESC Parameters\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE provides nine programmable settings for basic crawler setup and tuning:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRPM \/ Throttle Matching\u003c\/li\u003e\n  \u003cli\u003eLiPo Cells\u003c\/li\u003e\n  \u003cli\u003eCutoff Voltage\u003c\/li\u003e\n  \u003cli\u003eESC Thermal Protection\u003c\/li\u003e\n  \u003cli\u003eMotor Rotation\u003c\/li\u003e\n  \u003cli\u003eBEC Voltage\u003c\/li\u003e\n  \u003cli\u003eDrag Brake Force\u003c\/li\u003e\n  \u003cli\u003eDrag Brake Rate\u003c\/li\u003e\n  \u003cli\u003eMax. Reverse Force\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProgrammable Low-Voltage Cutoff\u003c\/h2\u003e\n\n\u003cp\u003eThe low-voltage protection system continuously monitors LiPo battery voltage and reduces power when the selected threshold is reached.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow:\u003c\/strong\u003e 3.0V per cell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 3.2V per cell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh:\u003c\/strong\u003e 3.4V per cell\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLow-voltage protection can also be disabled, but Hobbywing does not recommend disabling it when using LiPo batteries because over-discharge can permanently damage the pack.\u003c\/p\u003e\n\n\u003ch2\u003eLED Program Box Programming\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE uses an \u003cstrong\u003eindependent programming interface integrated into the electronic switch\u003c\/strong\u003e. ESC parameters are adjusted with the Hobbywing LED Program Box.\u003c\/p\u003e\n\n\u003cp\u003eWith the system switched off, connect the programming cable between the switch's 3-pin programming interface and the LED Program Box. After powering on the system, the program box displays the available settings and values.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe LED Program Box is not included unless specifically stated in the product package.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Fusion SE does \u003cstrong\u003enot\u003c\/strong\u003e support the LCD Program Box G2, LCD Program Box Pro or Hobbywing OTA Programmer.\u003c\/p\u003e\n\n\u003ch2\u003eMultiple Protection Functions\u003c\/h2\u003e\n\n\u003cp\u003eBuilt-in protection functions help protect the Fusion SE against several common crawler power-system problems:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBattery low-voltage protection\u003c\/li\u003e\n  \u003cli\u003eESC thermal \/ overheat protection\u003c\/li\u003e\n  \u003cli\u003eThrottle signal loss protection\u003c\/li\u003e\n  \u003cli\u003eMotor lock-up protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLED status signals also help identify low-voltage protection, thermal protection and throttle-signal problems during troubleshooting.\u003c\/p\u003e\n\n\u003ch2\u003eElectronic Switch and Independent Programming Port\u003c\/h2\u003e\n\n\u003cp\u003eThe electronic switch provides normal system power control while also housing the independent programming interface used by the LED Program Box.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/6_3a9a9207-0166-44b8-8769-7053f821798c.png\" alt=\"Hobbywing QUICRUN Fusion SE electronic switch with independent LED Program Box programming port\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eShort-press the switch to power the system on and long-press it to shut the system down. The battery should still be physically disconnected after every driving session.\u003c\/p\u003e\n\n\u003ch2\u003eReceiver Power and External BEC Warning\u003c\/h2\u003e\n\n\u003cp\u003eThe red wire in the Fusion SE throttle lead supplies BEC power to the receiver and steering servo. Do not simultaneously power the same receiver bus from another BEC or receiver battery while leaving this BEC connection active.\u003c\/p\u003e\n\n\u003cp\u003eIf an independent receiver power source is required, remove or disconnect the red BEC wire from the throttle lead, insulate it securely and keep it isolated before applying the second power source.\u003c\/p\u003e\n\n\u003ch2\u003eThrottle Calibration\u003c\/h2\u003e\n\n\u003cp\u003eThrottle-range calibration should be completed before first use and repeated whenever transmitter throttle settings, transmitter, receiver, TRIM, D\/R or EPA settings are changed.\u003c\/p\u003e\n\n\u003cp\u003eThe calibration procedure stores three positions:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNeutral\u003c\/li\u003e\n  \u003cli\u003eFull forward\u003c\/li\u003e\n  \u003cli\u003eFull reverse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor safety, remove the pinion gear or otherwise ensure that the drivetrain cannot move the vehicle while performing calibration.\u003c\/p\u003e\n\n\u003ch2\u003eAutomatic Motor Pairing\u003c\/h2\u003e\n\n\u003cp\u003eIf the Fusion SE experiences severe impact, abnormal heating or abnormal power output, Hobbywing provides an optional automatic motor-pairing procedure.\u003c\/p\u003e\n\n\u003cp\u003eThe motor gear must be removed before pairing. Once the system enters pairing mode, the motor will rotate automatically during the matching process. Reconnect the throttle lead and confirm correct operation after pairing is complete.\u003c\/p\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is the Hobbywing QUICRUN Fusion SE 1800KV?\u003c\/h3\u003e\n\u003cp\u003eIt is an integrated 2-in-1 crawler power system combining a sensored FOC brushless motor and ESC in one 540-size assembly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat battery does the Fusion SE 1800KV use?\u003c\/h3\u003e\n\u003cp\u003eIt supports 2S and 3S LiPo batteries or 6-9 cell NiMH packs.\u003c\/p\u003e\n\n\u003ch3\u003eIs the Fusion SE designed for high-speed RC cars?\u003c\/h3\u003e\n\u003cp\u003eNo. Its primary application is 1\/10 RC crawling and trail driving, where smooth low-speed torque, precise throttle control, drag brake behavior and compact installation are more important than maximum speed.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the Fusion SE have cruise-control-style RPM Matching?\u003c\/h3\u003e\n\u003cp\u003eYes. When RPM \/ Throttle Matching is enabled, closed-loop control automatically adjusts motor torque as vehicle resistance changes so vehicle speed stays closer to the driver's throttle request.\u003c\/p\u003e\n\n\u003ch3\u003eCan the Fusion SE hold a crawler on a steep hill?\u003c\/h3\u003e\n\u003cp\u003eIts adjustable drag brake is designed to provide strong hill-holding capability. Drag Brake Force and Drag Brake Rate can be tuned separately to balance holding strength and how quickly braking is applied.\u003c\/p\u003e\n\n\u003ch3\u003eCan I run a 7.4V servo?\u003c\/h3\u003e\n\u003cp\u003eThe built-in BEC can be set to 7.4V when the receiver, servo and connected electronics all support that voltage. A 3S LiPo should be used when regulated 7.4V BEC output is required.\u003c\/p\u003e\n\n\u003ch3\u003eWhich programming box works with the Fusion SE?\u003c\/h3\u003e\n\u003cp\u003eThe Fusion SE supports the Hobbywing LED Program Box through the independent programming port located at the electronic switch. It does not support LCD G2, LCD Pro or OTA programming.\u003c\/p\u003e\n\n\u003ch3\u003eIs the Fusion SE waterproof?\u003c\/h3\u003e\n\u003cp\u003eThe complete system carries an IP67 protection rating for normal exposure to water and dust. It should not be treated as permanently waterproof or intentionally left submerged for extended periods.\u003c\/p\u003e\n\n\u003ch3\u003eWill the Fusion SE fit every 1\/10 crawler?\u003c\/h3\u003e\n\u003cp\u003eNo universal-fit claim should be made. Its 36 × 58.1mm integrated body fits many 1\/10 crawler layouts, but motor mounting, transmission clearance, link geometry, shaft position and surrounding components should always be checked before purchase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLED Program Box, battery, receiver, servo and other RC electronics are not included unless specifically stated in the product listing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notice\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDisconnect the battery after every use. The system can continue drawing a small amount of current even when switched off.\u003c\/li\u003e\n  \u003cli\u003eNever reverse battery polarity. Reverse-polarity damage can permanently damage the power system.\u003c\/li\u003e\n  \u003cli\u003eUse 7.4V BEC output only with receiver-side electronics rated for 7.4V operation.\u003c\/li\u003e\n  \u003cli\u003eUse a 3S LiPo when regulated 7.4V BEC output is required.\u003c\/li\u003e\n  \u003cli\u003eDo not feed the receiver simultaneously from the internal BEC and an external BEC or receiver battery unless the power sources are correctly isolated.\u003c\/li\u003e\n  \u003cli\u003eDo not allow external system temperature to exceed 90°C \/ 194°F.\u003c\/li\u003e\n  \u003cli\u003eIP67 protection does not mean the product should remain submerged for extended periods.\u003c\/li\u003e\n  \u003cli\u003eRemove the pinion gear before calibration or automatic motor pairing where required by the manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eQUICRUN Fusion SE User Manual\u003c\/h2\u003e\n\n\u003cp\u003e\n\u003ca style=\"color:#E60073;text-decoration:underline;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_QUICRUN_Fusion_SE_Manual.pdf?v=1786085162\"\u003e\nDownload the Hobbywing QUICRUN Fusion SE User Manual\n\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eComplete Your RC Crawler Power Setup\u003c\/h2\u003e\n\n\u003cp\u003e\n\u003ca style=\"color:#E60073;text-decoration:underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/brushless-escs\"\u003eBrushless ESC Collection\u003c\/a\u003e\u003cbr\u003e\n\u003ca style=\"color:#E60073;text-decoration:underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-quicrun-escs\"\u003eHobbywing QUICRUN ESCs\u003c\/a\u003e\u003cbr\u003e\n\u003ca style=\"color:#E60073;text-decoration:underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programming-cards\"\u003eESC Programming Cards\u003c\/a\u003e\n\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":49872548135126,"sku":"30404317 GL","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/FusionSE.3_2048x_9607876d-6b40-4278-b980-917e77dce5fb.webp?v=1786086242","url":"https:\/\/chinahobbyline.com\/id\/products\/hobbywing-quicrun-fusion-se-1800kv","provider":"ChinaHobbyLine","version":"1.0","type":"link"}