Foil drive FM+ 650 Battery

DESCRIPTION
The FM+ 650 Battery sits at the intersection of runtime, weight and cost, and is the go-to option for Gen2.5 Fusion and MAX+ units. With 648Wh of
capacity, Foil Drive’s 43V architecture delivers powerful, consistent thrust and endurance for extended surf sessions, upwind/downwind runs, wake
riding, pumping, flatwater starts and light eFoiling. It works across Fusion and MAX+ setups: add the FM+ Battery Adaptor for Fusion, while MAX+ riders
get the highest-capacity battery and Fusion riders gain a lighter, more manoeuvrable option.

WHAT’S INCLUDED
• FM+ 650 Battery
• FM+ 650 Battery Carry Case

COMPATIBLE WITH
• Foil Drive Fusion (with FM+ Battery Adaptor)
• Foil Drive MAX+
• FM+ Battery Adaptor
• 43V Standard Charger
• Foil Drive Battery Caddy (with FM+ Battery Adaptor)
• Not Compatible with Gen 2 MAX Unit.

DETAILS
Gen2.5 Battery Technology allows deeper cycle performance, delivering
full power down to ~10% battery before normal sag. Charging: requires
the 43V Charger supplied with Fusion or MAX+; averages 85 minutes and
includes Storage Mode. Store at 30–60% SoC. Intelligent Bluetooth
Module (BMS) provides accurate data to the V3 Controller and Foil Drive
App, including battery naming, health and SoC. One-piece molded design
unifies battery and nose cone for sealing, water flow, durability and
balanced weight over the foil’s centre of lift. Internal thermal
management keeps temperature stable for consistent power and smooth
thrust from start to finish.

Tech Specs 
Rated Capacity (Watt Hours): 648Wh | Amp Hours: 15 Ah | Nominal
Voltage: 43.2 V | Max Voltage: 50.4 V
Battery Weight: 3.95 kg / 8.70 lbs | Dimensions of Battery: L460 × W125 ×
H55 mm

Dimensions Installed: L540 x W125 x H55mm (Installed with MAX+) |
658x125x55mm (Installed with Fusion)
Nose Cone: Not Required - Integrated | Battery Type: Lithium-Ion
Water Rating: IP69 +IP69 Water and Dust Resistance
Certified: UN38.3, CE, FCC, WEEE, RoHS, PSE, IP68, IP69
Battery care: Proper care is essential for battery longevity; see your
Battery and Charger user manuals.

*E-Foil Runtime Intermediate: ~31 mins
*E-Foil Runtime Advanced: ~52 mins

**Surf Runtime Intermediate: ~40-50 mins
**Surf Runtime Advanced: ~55-70 mins

Runtime varies by skill, weight, gear sizing and weather conditions;
indicative guide only.

*E-Foil basis: 80 kg rider, 800 cm2 wing, 5'0 40L board, flat water, throttle
~70%; Intermediate has touch downs/falls/restarts, Advanced has none.

**Surf basis: 80 kg rider, 800 cm2 wing, 5'0 40L board, 3ft swell, under
5kts wind; Intermediate has high motor reliance and many falls/restarts,
Advanced medium reliance, some pumping and minimal falls/restarts