Xinleina 6-FM-4.5 12V 5Ah Battery with F1 Terminals
Battery 6-FM-7(12V7AH/20HR)12V for children's electric TOYS – Pentaras Motors
Amazon.com: 12v 7Ah Battery for Kids Ride on car, Valve Regulated Lead-Acid Rechargeable Battery,Rechargeable Replacement Battery for Kids Ride ons : Toys & Games