Amazon.com: Venom Drive Series 7.2V 3000mAh 6-Cell NiMH Battery- Universal 2.0 Plug/Adapter System Compatible, for Most 1/10 Brushed Radio Control Boats, 2WD and 4WD Cars, Trucks & Buggies, Advance Performance : Toys
iRobot APS Battery 17373 | Advanced Power System Battery – Vacuum Direct