Amazon.com: 7.2V 2400mAh Rechargeable Ni-MH Battery AA Battery Pack with Standard Tamiya Connector for RC Car RC Truck Household Appliances 2 Pack with USB Charger : Toys & Games
Nikko 9.6v battery pack substitution.
Nikko 6.0V 4-Hour Ni-Cd Battery Charger Model 1764B | eBay