Venom 25C 2S 5000mAh 7.4 Hardcase LiPo Battery with HXT 4.0mm Plug Battery Type: Lithium Polymer (LiPo) Battery Capacity: 5000mAh C Rate and Maximum Continuous Discharge (Amps): 25C (125A) Plug Type: HXT4.0mm Fits many popular Redcat Racing models.