Aerofoils Audi e-tron eFoil Endurance Battery

At the heart of the Audi e-tron foil sits a 44.25 Ah (2.23 kWh) lithium-ion battery, which provides power for up to 120 minutes or even up to 40km riding. The battery is charged to its full capacity in 120 minutes using the industrial grade charger. Additionally, slow charging can be used to charge the battery with mobile power outlets in vehicles or multiple chargers on the same circuit to its full capacity in 5 hours and 30 minutes.