Venom 35C 2S 8000mAh 7.4V LiPo Battery with Universal Plug (EC3/Deans/Traxxas/Tamiya) x4 Packs Battery Type: Lithium Polymer (LiPo) Battery Capacity: 8000mAh C Rate and Maximum Continuous Discharge (Amps): 35C (280A) Plug Type: Venom UNI Plug. Compatible with Traxxas Plug, Tamiya Plug, Deans Plug & EC3 Plug.