1-10pcs 7.4v Lipo Battery For Remote Control Toy Car Robot Spare Parts 7.2v 8.4v Batteries Oda Palace Joint 5200mah 15*50*83mm - Battery Packs - AliExpress
Amazon.com: melasta 8.4V 4200mAh Hump NiMH Battery Pack Fit for Tracxas RC Racing Car Truck Boat Tank RC Hobby, 7-Cell Rechargeable RC Nimh Battery : Toys & Games
Amazon.com: Venom Power - Drive Series 8.4V 5000mAh 7-Cell NiMH Battery Flat - Universal 2.0 Plug/Adapter System Compatible, for Most 1/10 Brushed Radio Control Boats, 2WD and 4WD Cars, Trucks & Buggies :
Melasta 8.4V 4200mAh 7-Cell Flat Pack NiMH Battery with Traxxas Discharge Plug for RC Racing Car Toys Hobbies