Foil Drive Max+ / Fusion Batteries

Foil Drive Gen 2.5 Batteries for Max+ and Fusion

The Fusion 860 Battery delivers 40% more thrust and up to 2× the runtime of a MAX Power Battery, thanks to its 43-volt system and 860 Wh capacity. Expect single-hour to multi-hour sessions in a compact, streamlined form.

Its one-piece molded design — integrating the battery and nose cone — improves water flow, durability, and optimal weight balance over the foil’s center of lift.

The intelligent Bluetooth BMS provides accurate live data to the V3 Controller (percentage, status, alerts). The battery also pairs with the Foil Drive App, allowing you to name your batteries, track health, view real-time SoC… and even monitor your surf camera and battery status without lifting a finger.

Internal thermal management ensures consistent power throughout the entire discharge curve, delivering smooth and predictable thrust from start to finish.

With the included Battery Caddy, transport and maintenance are effortless. The caddy can automatically discharge the battery to storage levels, or you can speed up the process using the USB-A and USB-C ports to charge your phone, laptop, or Foil Drive controller.

The FM+ 650 Battery sits at the intersection of runtime, weight and cost and is your “go to” battery option for both Gen2.5 Fusion and MAX+ units.

With 648Wh of capacity, Foil Drive’s 43V architecture unlocks powerful, consistent thrust, and endurance for extended surf sessions and upwind downwind runs to wake riding, pumping, flatwater starts and light eFoiling.

Engineered to work across both the Fusion and the MAX + units, gives riders the flexibility to move one battery between two very different setups.

For MAX+ riders, this is your highest capacity battery, offering plenty of runtime for a full surf session. Fusion riders simply add the FM+ Battery Adaptor for lighter, more maneuverable alternative.

The Gen. 2.5 batteries require the 43 V charger provided with your Fusion system. Average charge time is 1 hr 45, with an innovative Storage Mode that limits charging to preserve long-term battery health (recommended storage level: 30–60% SoC).