Important Note: The motor-only option does not include a battery or charger. The K4S Sport B15 battery package includes the B15 waterproof battery and a compatible dedicated Tedgix 819W charger.
K4S Sport is a high-performance electric SUP & kayak motor designed for faster rides, longer journeys, and more demanding on-water use. Built for SUP boards, kayaks, inflatable boats, canoes, and other compatible small watercraft, it delivers stronger electric propulsion for riders who want more speed, greater range potential, and more confident control on the water.
The K4S Sport B15 battery package is designed for riders who need stronger propulsion and longer on-water sessions. It includes the 1526Wh waterproof B15 battery and a compatible dedicated Tedgix 819W charger.
| Battery | Capacity | Included Charger |
|---|---|---|
| B15 | 1526Wh | Dedicated Tedgix 819W charger |
Runtime notice: Actual runtime and travel distance vary with speed setting, boat type, load, mounting position, wind, current, water conditions, and battery condition.
K4S Sport is designed for riders who need more than basic electric assistance. It is suitable for longer-distance touring, covering water routes more efficiently, compatible fishing setups, inflatable boats, and performance-focused riding.
The wireless remote provides speed adjustment, steering input, forward and reverse control, one-touch cruise control, and real-time operating information. Displayed battery and range information should be treated as reference data and may vary with the actual setup.
Despite its stronger output, K4S Sport maintains a compact and lightweight form for easier transport and setup. Its standard 9-inch quick-release fin design supports tool-free installation and removal on compatible mounting systems.
Use only the dedicated 819W charger included with the K4S Sport B15 battery package. Charge the battery indoors in a dry, well-ventilated location. Do not cover the charger during operation, and do not use the 252W K4C charger with the B15 battery.
If the battery will not be used for an extended period, recharge it periodically according to the battery care instructions. Do not store the battery fully discharged for a long time.
After saltwater use, rinse the motor exterior, propeller area, connectors, mounting components, and exposed metal parts with fresh water. Remove salt, sand, and debris, then allow the product to air-dry naturally before storage.
Watch our step-by-step installation guide to get started in minutes. Plus, explore real-world scenarios and see how the K4 transforms your kayaking、SUP and fishing experience.
1500W Brushless Power | 21.5 KG Thrust | Wireless Remote | Portable Design
Powered by a 1500W high-efficiency brushless permanent magnet motor, delivering robust thrust with a top speed of 14.5 km/h. Features three operating modes for seamless switching: variable speed control to meet diverse riding needs.
Equipped with aviation-grade metal steering servos for precise left/right turns, empowering you to conquer waves with ease and experience the thrill of gliding across water.
K4S SUP/kayak motor adopts advanced wireless control tech, which breaks free from traditional cable constraints for freer operation. With one-click pairing via the dedicated remote controller, you can start your water exploration journey effortlessly. The handheld remote enables agile steering with millisecond-level response.
Compact and lightweight at just 1780g. Features a standard 9-inch quick-release fin for tool-free installation/removal. Compatible with all small watercraft (inflatable boats, kayaks, canoes, transparent vessels, etc.) and SUP boards of various specifications.
Tedgix K4S Sport is built for longer routes, faster movement, and more efficient water journeys when your target lies beyond casual cruising distance.
Comes with wireless remote for effortless speed and steering adjustment with precise handling. One-touch cruise control makes operation easier, even for beginners. With IP68 waterproof protection and real-time ride data display, the remote is built to support more confident everyday use on the water.
The K4S motor requires a compatible waterproof battery to operate. The B15 is the current battery configuration available for K4S Sport and must be charged with the dedicated Tedgix 819W charger. Type-C battery charging is not supported.
*Actual test data obtained under specific conditions, for reference only.
The K4S Sport B15 1526Wh waterproof battery combines dedicated high-power charging with Type-C PD3.0 power output for compatible external devices. The B15 battery can only be charged with the dedicated Tedgix 819W charger. Type-C does not support battery charging.
The Type-C PD3.0 port supports power output of up to 100W to compatible phones, laptops, drones, camera batteries, and other mobile devices. Type-C cannot be used to charge the K4S battery. The B15 1526Wh battery must be charged only with the dedicated Tedgix 819W charger.
Allowing you to navigate the water without worries
A high-performance SUP and kayak propulsion system built for stronger thrust, faster rides, agile control, and saltwater-ready use.
Key performance, size, mounting, and operating specifications for K4S Sport.
21.5kg
1500W
45-55V
<30A
14.5km/h+
5-8km/h
1780g
±30°
Slide-In Quick-release Track
(Includes US BOX Adapter And Other Accessories)
Saltwater & Freshwater
This product can be used in both freshwater and saltwater. You must rinse it with freshwater after saltwater use, otherwise the machine's lifespan will be affected. When not in use, remove the main unit and battery and store them indoors. Try to avoid leaving it submerged in water for extended periods when not in use.
Please refer to the Warranty Agreement. K4S Sport includes a 1-year warranty and lifetime repair support.
| Battery Model |
Capacity |
Economy Mode |
Half Throttle Mode |
Full Throttle Mode |
|---|---|---|---|---|
| B15 | 1526Wh | 14h | 1.9h | 1h |
Everything included with the K4S Sport package for motor control, remote operation, signal receiving, and US-BOX mounting support.
The standard package includes the K4S Sport main unit, remote control, signal receiving box, and US-BOX.
Return to the top purchase section, choose your preferred configuration, and complete your order.
K4C
K4S
K5