Many parts are interchangeable between models.
Roto Drill Electric Nitro starter Battery 7.2v NiMH 3600 mAh RC Rechargeable UK
7.2v NiMH 3600 mAh RC Rechargeable Battery + USB Charger - Tamiya Connector
Drill Electric Nitro Roto start Battery 7.2v NiMH 3600 mAh RC Rechargeable
Nitro Engine Roto Start Battery 7.2v NiMH 3000 mAh RC Rechargeable UK
ZYGY 2PCS 7.4V 500mAh SM-4P Plug Rechargeable Battery with USB Charging Cable for EC16 DE85 RC Toy Car Model Buggy Battery M416 Electric Gel Ball Blaster Spare Battery
2pcs 5000mAh 11.1V 3S LiPo Battery 100C for RC Traxxas Car Truck Buggy Boat
