ZIPPY 5000mAh 7.4v 2S1P 2S 30C - 40C HARDCASE LiPo Battery RC 1/10 1/8 Stampede ZIPPY 5000mAh 7.4v 2S1P 2S 30C - 40C HARDCASE LiPo Battery 2 Cell (2S1P) 7.4 volts Capacity: 5000MAH, Discharge: 30C Constant / 40C Burst Weight: 301g (including wire, plug & case) 4mm bullet Plug