9.6 volt Radio Control Car Rechargeable Battery Pack - 9.6v Tamiya Connector (Fits Many Tyco Nikko & Radio Shack Radio Controlled Cars & Trucks): Amazon.co.uk: Toys & Games
Nikko 9.6 V Ni-MH Battery and Charger: Amazon.de: Electronics & Photo
NiMH Battery: 9.6V 2200mAh Battery for RC Car Toy of Nikko and Radioshock