Part Number: PW-128 These batteries are for use on the Generation 1 (G1) EZee Fold and EZee Fold HD model wheelchairs only. The EZee Fold chairs are sold wth a single battery only but will hold up to three batteries, depending on the model, at once for additional power and range of travel.You can order additional batteries here for your EZee Fold power wheelchair.To order multiple batteries adjust the quantity as needed. Batteries are non-returnable