Make your own RC Car Battery Pack or Repair NIKKO Ni-Cd 6.0V-620mAh - YouTube
Amazon.com: OooSure Rechargeable Ni-Mh Battery AA X 6 2400mAh 7.2V SM-2P Plug for RC Toy Household Electric Appliances Lighting Equipment with Charging USB Cable : Toys & Games
7.2V 500mAh Ni-MH AA rechargable battery/USB charger for R/C cars R/C
5x Exell 1.2V AA 2200mAh Rechargeable NIMH Flat Top Batteries FAST USA SHIP - Walmart.com
Amazon.com: OooSure Rechargeable Ni-Mh Battery AA X 6 2400mAh 7.2V SM-2P Plug for RC Toy Household Electric Appliances Lighting Equipment with Charging USB Cable : Toys & Games