The Toyota Prius is equipped with two types of batteries. The first one, found in almost all automobiles, is a lead-acid (Pb-A) 12V accessory battery. The second battery is designed for hybrid vehicles and is a Panasonic Metal Case Prismatic Module. The latter battery charges by running the on-board generator and by regenerative braking; it is not designed to be charged manually. The lead-acid (Pb-A) 12V accessory battery is charged by obtaining current from a battery charger or by jump-starting with another car.
Open the Prius’s hood by pulling on the handle located on the bottom left of the steering wheel. Hold the hood open by hooking the metal “I” rod on the inner part of the hood into the small hole on the side of the hood.