The Lift Electric Foil Battery custom lithium-ion battery built for rugged marine environments. Its 2.1 kWh the largest battery in the efoil industry. This battery offers performance, convenience, and the most comprehensive safety components on the market. It lasts up to an hour depending on rider weight and speed and is enclosed in a rugged, IP68 waterproof housing that allows it to be transported and installed safely. Our battery is also easily replaceable and rechargeable, with charge times of less than two and a half hours.