{"product_id":"firduo-65111-motor-diy-kit-for-efoil-hydrofoil-esurfboard","title":"Firduo 65111 Motor DIY Kit – Sea Lion 120A ESC + VX3 Remote for eFoil \u0026 Electric Surfboard","description":"\u003ch3\u003e🌊 Complete Drive System. Ready to Build.\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eFirduo 65111 Motor DIY Kit\u003c\/strong\u003e is a complete, pre-matched propulsion bundle combining the \u003cstrong\u003e65111 150KV IP68 Waterproof Motor with Propeller\u003c\/strong\u003e, \u003cstrong\u003eSea Lion 120A Water-Cooled ESC\u003c\/strong\u003e, and \u003cstrong\u003eVX3 IP67 Waterproof Remote Controller\u003c\/strong\u003e — everything you need to power an eFoil, electric surfboard, hydrofoil, or ROV build.\u003c\/p\u003e\n\u003cp\u003eAll three components are matched for compatibility: the 65111 motor operates within the Sea Lion ESC's 5S–12S input range, the VX3 remote connects via PPM for reliable throttle control, and the IP68 motor pairs with the water-cooled ESC for sustained high-current operation. Skip the compatibility research — just add your battery, mount, and board.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e⚡ Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eComplete Matched System\u003c\/strong\u003e — motor, ESC, and remote pre-matched for voltage, current, and signal compatibility\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e65111 150KV IP68 Motor + Propeller\u003c\/strong\u003e — 2KW peak \/ 1.5KW continuous, 10mm shaft, fully waterproof\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSea Lion 120A Water-Cooled ESC\u003c\/strong\u003e — 120A continuous \/ 240A burst, 5S–12S LiPo, active water cooling\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eVX3 IP67 Waterproof Remote\u003c\/strong\u003e — 1.6-inch display, GPS, MOS temperature, cruise control, PPM + UART,wireless charging\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSuitable for eFoil, Hydrofoil, Electric Surfboard, ROV, Robot\u003c\/strong\u003e — versatile across water sport and marine applications\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMultiple ESC Protection Systems\u003c\/strong\u003e — stall, low voltage, over-heat, signal loss protection\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLCD Program Card \u0026amp; USB\/PC Programming\u003c\/strong\u003e — easy ESC parameter tuning and firmware updates\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📋 Full Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003ca title=\"Firduo 65111 IP68 Waterproof Brushless Motor 150KV 2KW for Efoil\" href=\"https:\/\/firduo.com\/collections\/firduo-motor\/products\/waterproof-ip68-sensorless-brushless-motor-65111-for-diy\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0000ff;\"\u003e65111 — 150KV IP68 Waterproof Brushless Motor\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65111\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65 × 111mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKV Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150KV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShaft Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStator Slots \/ Poles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12N \/ 12P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Wire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14S (58.8V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e140A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNo-Load Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.7A @ 142KV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePeak Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2,000W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContinuous Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115.8 \/ 114.9 \/ 114.7 mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaterproof Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.41 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"Firduo 65111 Motor Dimension Drawing D65 L111mm\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/D65L111-A-150kv_b104cf00-6ce2-4185-b788-816673141e0b.jpg?v=1670378183\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/65111-150KV_1024x1024.jpg?v=1647506824\" alt=\"Firduo 65111 150KV Motor Specification Performance Data\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/firduo.com\/collections\/firduo-esc\/products\/firduo-sea-lion-120a-water-cooled-esc-for-efoil-hydrofoil\" title=\"Firduo Sea Lion 120A Water-Cooled ESC for Efoil \u0026amp; Hydrofoil\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0000ff;\"\u003eSea Lion — 120A Water-Cooled ESC\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContinuous Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBurst Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240A (up to 10 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5S–12S LiPo (18.5V–44.4V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBEC Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo BEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater Cooling Pipe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.6mm, \u003cspan\u003ewaterproof-Splash protection\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e105 × 48 × 23mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower \u0026amp; Motor Wire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12AWG silicone, 160mm, no connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal Wire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\/black with JR male, 300mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrive Direction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eForward only \/ Forward+Backward (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStall, low voltage, over-heat, signal loss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLCD Program Card \/ USB + PC software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"Firduo Sea Lion 120A Water-Cooled ESC for eFoil Hydrofoil\" src=\"https:\/\/cdn.shopifycdn.net\/s\/files\/1\/0227\/7805\/2685\/files\/120a.jpg?v=1605770855\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/firduo.com\/collections\/firduo-remote\/products\/fully-waterproof-remote-controller-vx3-for-electric-surfboard-efoil-and-electric-skateboard\" title=\"Firduo VX3 Waterproof Remote UART \u0026amp; PWM for Efoil \u0026amp; Electric Surfboard\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0000ff;\"\u003eVX3 — IP67 Waterproof Remote Controller\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWaterproof Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.6-inch super clear screen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Data\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGPS, motor power, MOS temperature, throttle progress bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eESC Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVESC and Non-VESC compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESK8 mode \/ E-surf mode (cruise control)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePPM \/ UART\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,500mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWireless charging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eESC Failure Alert\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (real-time detection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReceiver\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"Firduo VX3 IP67 Waterproof Remote Controller Receiver UART PPM\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/VX3_95914b93-8a01-4f0c-9e2f-02e581f94f7d.jpg?v=1709104241\"\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📦 What's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1× \u003ca rel=\"noopener\" title=\"Firduo 65111 IP68 Waterproof Brushless Motor 150KV 2KW for Efoil\" href=\"https:\/\/firduo.com\/collections\/firduo-motor\/products\/waterproof-ip68-sensorless-brushless-motor-65111-for-diy\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo 65111 150KV IP68 Waterproof Brushless Motor\u003c\/span\u003e\u003c\/a\u003e + Matched Propeller (with installation accessories)\u003c\/li\u003e\n\u003cli\u003e1× \u003ca rel=\"noopener\" title=\"Firduo Sea Lion 120A Water-Cooled ESC for Efoil \u0026amp; Hydrofoil\" href=\"https:\/\/firduo.com\/collections\/firduo-esc\/products\/firduo-sea-lion-120a-water-cooled-esc-for-efoil-hydrofoil\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo Sea Lion 120A Water-Cooled ESC\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e1× \u003ca rel=\"noopener\" title=\"Firduo VX3 Waterproof Remote UART \u0026amp; PWM for Efoil \u0026amp; Electric Surfboard\" href=\"https:\/\/firduo.com\/collections\/firduo-remote\/products\/fully-waterproof-remote-controller-vx3-for-electric-surfboard-efoil-and-electric-skateboard\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo VX3 IP67 Waterproof Remote Controller\u003c\/span\u003e\u003c\/a\u003e (with receiver)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e⚠️ Sea Lion ESC has no BEC — receiver must be powered separately.ESC's waterproof rating is \u003cspan\u003ewaterproof-Splash protection\u003c\/span\u003e; it cannot be used underwater.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"Firduo 65111 Motor DIY Kit Propeller Matched for 10mm Shaft\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/7_9c3a4d38-46e8-4e4f-b7e3-2c6ff1e63e22.jpg?v=1651810246\"\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e🔗 Compatible Builds \u0026amp; Recommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eeFoil \/ Hydrofoil\u003c\/strong\u003e — 65111 at 10S–12S for compact, lightweight foil builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Surfboard \/ Jetboard\u003c\/strong\u003e — complete 2KW drive system for DIY electric surfboard builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eROV \/ AUV \/ Robot\u003c\/strong\u003e — IP68 motor + waterproof ESC for underwater and marine robotics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpgrade to VESC System\u003c\/strong\u003e: \u003ca rel=\"noopener\" title=\"Firduo 2KW eFoil Kit – Manatee 100 ESC + 65111 Motor + VX3 Remote for Hydrofoil \u0026amp; Electric Surfboard\" href=\"https:\/\/firduo.com\/collections\/diy-kit\/products\/firduo-2kw-waterproof-kit-75v-100a-esc-motor-remote-for-efoil-esurfboard\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo 2KW eFoil Kit – Manatee 100 ESC + 65111 Motor + VX3 Remote\u003c\/span\u003e\u003c\/a\u003e — same motor and remote with VESC-based ESC for full telemetry and UART support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC Upgrade (VESC)\u003c\/strong\u003e: \u003ca rel=\"noopener\" title=\"Firduo Manatee 100 75V 100A Water-Cooled ESC – VESC Compatible\" href=\"https:\/\/firduo.com\/collections\/firduo-esc\/products\/firduo-manatee100-high-voltage-75v-high-current-100a-esc-base-on-vesc-with-water-cooling-enclosure\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo Manatee 100 75V 100A Water-Cooled VESC\u003c\/span\u003e\u003c\/a\u003e — drop-in ESC upgrade with VESC Tool configurability and UART telemetry;Higher waterproof rating, supports underwater use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Only\u003c\/strong\u003e: \u003ca rel=\"noopener\" title=\"Firduo 65111 IP68 Waterproof Brushless Motor 150KV 2KW for Efoil\" href=\"https:\/\/firduo.com\/collections\/firduo-motor\/products\/waterproof-ip68-sensorless-brushless-motor-65111-for-diy\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo 65111 150KV IP68 Waterproof Motor\u003c\/span\u003e\u003c\/a\u003e — purchase motor separately if you have an existing ESC and remote\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Connector\u003c\/strong\u003e: \u003ca rel=\"noopener\" title=\"Firduo 120A High Current and High Voltage Waterproof Connector for Efoil \u0026amp; Surfboard \u0026amp; Ebike\" href=\"https:\/\/firduo.com\/collections\/other\/products\/friduo-120a-high-current-high-voltage-waterproof-plug-socket-for-electric-hydrofoil-surfboard-thruster-ejet-board-electric-bicycle\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo 120A Waterproof Power Connector\u003c\/span\u003e\u003c\/a\u003e — for sealed battery-to-ESC connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery\u003c\/strong\u003e: 5S–12S LiPo or Li-ion pack (Sea Lion ESC limit), minimum continuous current to meet the rated power requirements of the motor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e🛠️ Setup Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan your build\u003c\/strong\u003e — confirm your battery voltage (10S–12S recommended for this kit), motor mount type, and board configuration. The Sea Lion ESC is limited to 12S max — do not exceed 44.4V input. The 65111 has a 10mm shaft — verify your propeller hub matches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount the motor\u003c\/strong\u003e — secure the 65111 motor into your foil mast pod or motor mount using the standard M5 screws. Route the 12AWG motor wires through the mast or board channel, away from the propeller arc and any moving parts. Attach the matched propeller to the 10mm shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect motor to ESC\u003c\/strong\u003e — connect the 3 motor phase wires to the Sea Lion ESC phase outputs (A-B-C). Rotation direction can be corrected by swapping any two phase wires — no motor rewiring required. Test rotation direction at low throttle before installing the propeller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect water cooling\u003c\/strong\u003e — attach the Sea Lion ESC's 4.6mm water cooling inlet and outlet to your board's water circuit. Ensure water flows through the ESC before running at high current. Secure hose connections with clamps to prevent leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect battery\u003c\/strong\u003e — use a high-current connector rated for 120A+ (Firduo 120A waterproof connector recommended). Use an anti-spark switch or pre-charge resistor to prevent connector arcing. Verify battery voltage is within 5S–12S (18.5V–44.4V).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect VX3 receiver to ESC\u003c\/strong\u003e — connect the VX3 receiver signal wire (JR male) to the Sea Lion ESC's PPM signal input. Power the receiver separately from a 5V BEC — the Sea Lion has no BEC output. Pair the VX3 remote with the receiver before first use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgram the ESC\u003c\/strong\u003e — use an LCD Program Card (sold separately) or USB + PC software to calibrate throttle endpoints, set drive direction, and configure low voltage cutoff. Calibrate throttle range with the VX3 remote before first water test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater test at low power\u003c\/strong\u003e — start at 20–30% throttle in calm water. Verify smooth motor operation, check water cooling flow (ESC should remain cool), and confirm all connections are sealed before increasing to full power.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch3\u003e❓ FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What battery do I need, and what voltage range is supported?\u003c\/strong\u003e\u003cbr\u003eThe \u003cstrong\u003eSea Lion 120A ESC supports 5S–12S LiPo (18.5V–44.4V)\u003c\/strong\u003e. The 65111 motor supports up to 14S, but the ESC is the limiting factor — do not exceed 12S (44.4V) with this kit. A \u003cstrong\u003e10S–12S LiPo or Li-ion pack with minimum 50A continuous discharge\u003c\/strong\u003e is recommended. The battery is not included — ensure your pack has a BMS capable of sustaining the discharge rate and a high-current connector rated for 120A+.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: The Sea Lion ESC has no BEC. How do I power the VX3 receiver?\u003c\/strong\u003e\u003cbr\u003eThe Sea Lion 120A has \u003cstrong\u003eno BEC output\u003c\/strong\u003e. You must power the VX3 receiver separately using a standalone 5V BEC connected to your battery, or a small receiver battery pack. Connect the BEC output to the receiver's power input, and connect the ESC signal wire (JR male) to the receiver's throttle channel. Do not attempt to draw receiver power from the ESC signal wire.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Can I upgrade the Sea Lion ESC to a VESC-based system later?\u003c\/strong\u003e\u003cbr\u003eYes. The 65111 motor and VX3 remote are both compatible with VESC-based ESCs. The \u003ca rel=\"noopener\" title=\"Firduo Manatee 100 75V 100A Water-Cooled ESC – VESC Compatible\" href=\"https:\/\/firduo.com\/collections\/firduo-esc\/products\/firduo-manatee100-high-voltage-75v-high-current-100a-esc-base-on-vesc-with-water-cooling-enclosure\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo Manatee 100 VESC\u003c\/span\u003e\u003c\/a\u003e\u003ca style=\"color: rgb(0, 0, 255);\" href=\"https:\/\/firduo.com\/products\/6940985196722\" target=\"_blank\"\u003e\u003c\/a\u003e is a direct upgrade — it supports UART mode for full VX3 telemetry (motor power, MOS temperature, GPS on the VX3 display) and VESC Tool configurability. Alternatively, the \u003ca rel=\"noopener\" title=\"Firduo 2KW eFoil Kit – Manatee 100 ESC + 65111 Motor + VX3 Remote for Hydrofoil \u0026amp; Electric Surfboard\" href=\"https:\/\/firduo.com\/collections\/diy-kit\/products\/firduo-2kw-waterproof-kit-75v-100a-esc-motor-remote-for-efoil-esurfboard\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eFirduo 2KW eFoil Kit\u003c\/span\u003e\u003c\/a\u003e includes the Manatee 100 ESC pre-matched with the 65111 motor and VX3 remote.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Is the motor water-cooled? What about the ESC?\u003c\/strong\u003e\u003cbr\u003eThe \u003cstrong\u003e65111 motor is IP68 waterproof\u003c\/strong\u003e and relies on natural water flow for passive cooling during operation — no separate cooling circuit is required for the motor. The \u003cstrong\u003eSea Lion 120A ESC uses active water cooling\u003c\/strong\u003e via a 4.6mm cooling pipe — connect the ESC cooling inlet and outlet to your board's water circuit before high-current operation. Always ensure water cooling is active before full-power riding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5: What is the difference between this kit and the 2KW eFoil Kit (Manatee 100 + 65111 + VX3)?\u003c\/strong\u003e\u003cbr\u003eBoth kits include the 65111 motor and VX3 remote, but differ in the ESC. This kit uses the \u003cstrong\u003eSea Lion 120A\u003c\/strong\u003e — a traditional RC ESC with PPM control, 5S–12S input, and LCD\/USB programming. The \u003ca rel=\"noopener\" title=\"Firduo 2KW eFoil Kit – Manatee 100 ESC + 65111 Motor + VX3 Remote for Hydrofoil \u0026amp; Electric Surfboard\" href=\"https:\/\/firduo.com\/collections\/diy-kit\/products\/firduo-2kw-waterproof-kit-75v-100a-esc-motor-remote-for-efoil-esurfboard\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e2KW eFoil Kit \u003c\/span\u003e\u003c\/a\u003e uses the \u003cstrong\u003eManatee 100 VESC ESC\u003c\/strong\u003e — open-source VESC platform with UART telemetry, 75V (16S) support, and full VESC Tool configurability. Choose this kit for a simpler, lower-cost build at 10S–12S; choose the 2KW eFoil Kit for higher voltage, VESC features, and full VX3 telemetry.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"Firduo 65111 Motor DIY Kit Complete System eFoil Hydrofoil Electric Surfboard\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/65111_8d589e46-a54e-4f7a-93f5-ff8a70f2f017_1024x1024.jpg?v=1651810030\"\u003e\u003c\/div\u003e","brand":"Firduo","offers":[{"title":"Default Title","offer_id":37571559162034,"sku":"65111-KIT-S","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0227\/7805\/2685\/files\/1_1b41d7a9-8003-40af-9b94-5a16081add87.jpg?v=1709104155","url":"https:\/\/firduo.com\/products\/firduo-65111-motor-diy-kit-for-efoil-hydrofoil-esurfboard","provider":"Firduo","version":"1.0","type":"link"}