Venom 25C 3S 5000mAh 11.4V Hardcase LiHV LiPo Battery with Universal Plug (EC3/Deans/Traxxas/Tamiya) x4 packs Battery Type: High Voltage Lithium Polymer (LiPO) 3C Fast Charge Capable: 3C (15A) Battery Capacity: 5000mAh C Rate and Maximum Continuous Discharge (Amps): 25C (125A) Proven US Support and Lifetime Battery Replacement Plan.