Battery 7A (1Pcs)Please note that you need to plug in two batteries to make the Foil Assist work. The battery runtime depends on various factors, including your foiling skills, weight, conditions, board size, speed level, and the efficiency of your foil. Typically, the runtime ranges from 30 to 60 minutes. We recommend investing in a second set of batteries so you can fully enjoy your time on the water without significant interruptions. The batteries can be easily