Venom 30C 3S 7500mAh 11.1V LiPo Battery with Universal Plug (EC3/Deans/Traxxas/Tamiya) x4 Packs Battery Type: Lithium Polymer (LiPo) Battery Capacity: 7500mAh C Rate and Maximum Continuous Discharge (Amps): 30C (250A) Plug Type: Venom UNI Plug. Compatible with Traxxas Plug, Tamiya Plug, Deans Plug & EC3 Plug.