Amazon.com: 7.4V (2 x 3.7V) 700mAh Li-ion Battery with SM-4P Plug for Old Version UDI001 Venom Speed RC Boat UDI008 UD08 UDI001 Battery 2 Pack with USB Charger : Toys & Games
Bloimky 2 Pack 7.2V 700mAH NiCd AA Battery Pack and USB Charger Cable for Old Version 15 Channel 2.4G Huina 1550 550 RC Excavator 7.2V NiCd Battery and USB 2 : Toys & Games - Amazon.com
Amazon.com: 2 Pcs 9.6V 700mAh Rechargeable KET-3P Plug Ni-Cd Battery with Charging USB Cable for RC Toy Like Robot car Remote Control Boat 9.6 Volt ket3p : Toys & Games