VOLANTEXRC RC Boat Spare Parts: 7.4V-380mAh-LiIon Battery for RC Boat
Amazon.com: Anstoy 7.4V Li-ion Battery 1200mAh Rechargeable SM-4P Plug Charging/Using Integration with USB Charger Cable Gel Blaster Accessories for Remote Control RC Boat Car (1-Pack) : Health & Household