{"product_id":"ztw-g2-40a-2-4s-5v-6v-4a-shark-esc-built-in-swithcing-bec-water-cooling-bidirectional-waterproof-brushless-speed","title":"ZTW G2 40A 2-4S 5V\/6V 4A Shark ESC Built-in Swithcing BEC Water-Cooling Bidirectional Waterproof Brushless Speed","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eZTW Shark G2 40A ESC 2-4S Built-in Swithcing BEC 5V\/6V 4A Water-Cooling Bidirectional Waterproof Brushless Speed Controller for RC Boat Marine\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eZTW G2 40A 2-4S 5V\/6V 4A Shark ESC Built-in Swithcing BEC Water-Cooling Bidirectional Waterproof Brushless Speed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ZTW Shark G2 Series brings next-generation 32-bit microprocessor control, true bidirectional operation, and integrated water cooling to every RC boat hull from a 20A pocket runner to the 120A flagship. Marine-grade conformal glue seals every component. Splash, mist, and humidity stay out even after a flip. A flat aluminum plate bonded to the PCB transfers heat to the integrated water-cooling tube, where flowing water carries it away. High-current MOSFET switches handle burst currents up to 140A on the 120A model without overheating. Start-up \/ over-heat \/ low-voltage \/ phase-loss \/ signal-loss five independent safeguards protect your pack and motor. The Shark G2 is more than an ESC it's a complete marine power platform. Each highlighted point on the image reveals the engineering behind a key feature from the 32-bit microprocessor to the pre-soldered XT60\/XT90 plug. Hover or tap to explore. Deep-V Hydroplane 32-bit MCU + linear throttle response means precise corner handling at peak speeds. Realistic Operation Soft brake + adjustable acceleration profiles match the inertia feel of full-size vessels. Twin-Screw Maneuvering True bidirectional control lets you spin in place one motor forward, one reverse. DIY ROV Linear forward+reverse with full power in both directions enables precision yaw and station-keeping. Wind-Drift Counter Use reverse on one hull while forward on the other to counter wind drift. ZTW Shark G2 20A ESC 2-4S ZTW Shark G2 30A ESC 2-4S ZTW Shark G2 40A ESC 2-4S ZTW Shark G2 50A ESC 2-4S ZTW Shark G2 60A ESC 2-6S ZTW Shark G2 80A ESC 2-6S ZTW Shark G2 100A ESC What's included in the box? One ZTW Shark G2 ESC (size you ordered), pre-soldered with XT60\/XT90 battery plug and 3.5mm\/4mm bullet motor connectors. LCD Program Card G2 is sold separately. what do the different beep sounds mean? \"Beep-Beep-\"every 2s=Signal lost \"Beep Beep-Beep Beep-\" every 2s=Temp protection \"Beep Beep Beep-Beep Beep Beep-\" every 2s=Low voltage \"Beep - Beep -\"every 200ms=Throttle is not at 0% \"Do-Ra-Mi - Do-Ra-Mi-\"every 200ms=Voltage out of supported range What size silicone tubing fits the water-cooling port? 2.41 mm ID 4.0 mm OD silicone or PVC tubing ( 3\/32\" 5\/32\" in inches). 27 mm length for 20-60A models, 32 mm for 80-120A. Compatible tubing is available at any RC hobby shop, marine supply store, or McMaster-Carr. Can I use it in saltwater? The Shark G2 is splash-proof and humidity-resistant inside the hull. However,prolonged submersion in saltwater is not recommended-rinse the ESC with fresh water after any saltwater exposure to prevent long-term corrosion of the cooling tube fittings. Which Shark G2 amperage do I need? Match the ESC continuous current to at least 1.2 your motor's rated peak draw, then size up. As a rough hull-length guide: 20-30A for boats under 500 mm, 40-60A for 500-900 mm, 80-100A for 900-1200 mm, 120A for over 1200 mm or twin-motor builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e ZTW\u003c\/p\u003e\n\u003cp\u003eshark 40a, swithcing bec, brushless, marine remote, cooling, water, water cooling, waterproof brushless, app controlled, power, parts remote, bec water Remote \u0026amp; App Controlled Vehicles \u0026amp; Parts Remote \u0026amp; App Controlled Vehicle Parts Power Plant \u0026amp; Driveline Systems Electric Speed Controllers\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ TRUE BIDIRECTIONAL FORWARD \u0026amp; REVERSE** Switch between \"Forward Only\" and \"Forward + Reverse\" modes via transmitter or LCD program card. Linear throttle response in both directions makes the Shark G2 ideal for twin-screw boats, catamarans, deep-V hulls and underwater thrusters that need precise reverse maneuvering not a half-power emergency reverse like cheaper ESCs.\u003c\/li\u003e\n\u003cli\u003e✅ 32-BIT MCU + SR SYNCHRONOUS RECTIFICATION** A new-gen 32-bit microprocessor with optimized BLDC algorithm delivers smoother startup, higher RPM ceiling and rock-steady throttle linearity. Synchronous Rectification cuts MOSFET conduction loss, lowers ESC running temperature and extends battery runtime proven energy-saving on 6S high-load runs.\u003c\/li\u003e\n\u003cli\u003e✅ WATERPROOF + INTEGRATED WATER-COOLING PLATE** Internal PCB is fully potted with marine-grade glue against splashes, mist and humidity inside the hull. The flat aluminum water-cooling plate channels water across both the FET and capacitor zones, holding the ESC well within safe temps even on extended high-throttle runs. **Compatible with standard 3\/32\" ID 5\/32\" OD silicone or PVC tubing easy to source locally.**\u003c\/li\u003e\n\u003cli\u003e✅ ADJUSTABLE SBEC, DRIVES STRONG SERVOS** Built-in switching SBEC is selectable 5V or 6V **4A continuous on 20A\/30A\/40A\/50A models, 8A continuous on 60A\/80A\/100A\/120A models** enough headroom to power high-torque rudder servos, FPV cameras, lights or a water pump without a separate UBEC. Wide input 2-4S LiPo (20A50A) \/ 2-6S LiPo (60A120A).\u003c\/li\u003e\n\u003cli\u003e✅ 5 PROTECTIONS + 2 PROGRAMMING WAYS** Start-up, over-heat, low-voltage cutoff, phase-loss and signal-loss protections guard your motor and pack. Program every parameter (timing \/ brake \/ battery cells \/ cutoff \/ direction \/ SR \/ acceleration) via stick on the transmitter, ZTW LCD Program Card G2.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Item Weight: 0.05 Kilograms\u003c\/li\u003e\n\u003cli\u003e✅ Power Source: Battery Powered\u003c\/li\u003e\n\u003cli\u003e✅ Material Type: Aluminum\u003c\/li\u003e\n\u003cli\u003e✅ Theme: Boat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Guarantees\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ FREE standard shipping within the United States (3 6 business days)\u003c\/li\u003e\n\u003cli\u003e✅ 100% money-back guarantee for lost or damaged items\u003c\/li\u003e\n\u003cli\u003e✅ Secure checkout with encrypted payment processing\u003c\/li\u003e\n\u003cli\u003e✅ Shipping via UPS, FedEx, and USPS\u003c\/li\u003e\n\u003cli\u003e✅ Ships to lower 48 states only (no PO Boxes \/ APO \/ FPO)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ 30-day hassle-free returns\u003c\/li\u003e\n\u003cli\u003e✅ Items must be unused and in original packaging\u003c\/li\u003e\n\u003cli\u003e✅ Full refund if item is not delivered\u003c\/li\u003e\n\u003cli\u003e✅ Guaranteed delivery within 6 7 business days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePayment Methods\u003c\/h3\u003e\n\u003cp\u003e✅ Credit Cards, PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, Meta Pay\u003c\/p\u003e\n\u003ch3\u003eCustomer Support\u003c\/h3\u003e\n\u003cp\u003e✅ Questions? Contact us at \u003cstrong\u003eSupport@GiftAbay.com\u003c\/strong\u003e\u003cbr\u003eWe respond within 24 hours on business days.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ZTW","offers":[{"title":"Default Title","offer_id":51189784871132,"sku":"TGABL2897488","price":30.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0816\/2816\/8412\/files\/51mmTOg_QpL._AC_SL1200.jpg?v=1781368183","url":"https:\/\/tech.giftabay.com\/products\/ztw-g2-40a-2-4s-5v-6v-4a-shark-esc-built-in-swithcing-bec-water-cooling-bidirectional-waterproof-brushless-speed","provider":"Tech.GiftAbay","version":"1.0","type":"link"}