Foil Drive Max High Power Battery Type:High Power the HA850 is designed to

the HA850 is designed to generate maximum efficiency with minimum drag

We've ensured the lining is extra wide and comfortable against your skin

Improved Weight Distribution: Positioning the battery closer to your feet enhances control

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Foil Drive Max High Power Battery Type:High Power the HA850 is designed toThe MAX High Power Battery The Pinnacle of Performance and Technology! Take your foiling to unprecedented heights with the MAX High Power Battery, the ultimate evolution in our High Power Range, designed exclusively for the Assist MAX System. Utilizing cutting edge battery technology, this powerhouse packs significantly more capacity into the same compact size as the current MAX Power Battery, just 100g heavier. MAX Sport: 332. 64 Wh MAX Power: 498.