Venom 13C 3S 1320mAh 11.1 LiPO Battery with Universal Plug System x4 Packs Battery Type: Lithium Polymer (LiPO) Battery Capacity: 1320mAh C Rate and Maximum Continuous Discharge (Amps): 13C 17A) Plug Type: Venom UNI Plug. Compatible with Traxxas Plug, Tamiya Plug, Deans Plug & EC3 Plug.