Amazon.com: BAOBIAN 4.8V 2200mAH AA NiMH Rechargeable Battery with SM-2P Plug and USB Charger Cable for RC Toy Vehicle Car Truck Crawler (1 Pack) : Toys & Games
4.8V, 200mAh, NiMH Battery - RobotShop
Amazon.com: 4.8 Volt NiMH Battery Pack (4200 mAh) with Leads : Health & Household
Pololu - Rechargeable NiMH Battery Pack: 4.8 V, 2200 mAh, 4x1 AA Cells, JR Connector
4.8 Volt NiMH Square Battery Pack (1000 mAh) with Leads - Only Batteries