Venom 9.6V 4200mAh 8-Cell Hump Pack NiMH Battery with Universal Plug (EC3/Deans/Traxxas/Tamiya) Battery Type: Nickel Metal Hydride (NiMH) Battery Capacity: 4200mAh Volts: 9.6V Plug Type: Venom UNI Plug. Compatible with Traxxas Plug, Tamiya Plug, Deans Plug & EC3 Plug. Plug Type: Venom Universal Plug System