Venom 50C 2S 5000mAh 7.4v Water Cooled Marine 2 Cell LiPO Battery x4 Packs Battery Type: Lithium Polymer (LiPO) Battery Capacity: 5000mAh C Rate and Maximum Continuous Discharge (Amps): 50C (250A) Battery Volts: 7.4v Built in Water Cooling Technology