Venom 20C 3S 6400mAh 11.1V LiPo Battery with Universal Plug (EC3/Deans/Traxxas/Tamiya) x2 Packs Battery Type: Lithium Polymer (LiPo) Battery Capacity: 6400mAh C Rate and Maximum Continuous Discharge (Amps): 20C (128A) Plug Type: Venom UNI Plug. Compatible with Traxxas Plug, Tamiya Plug, Deans Plug & EC3 Plug.