Combo: 3pcs of Tenergy 30C 7.4 V 2200mAh Replacement LiPO Battery for Syma X8C X8W X8G Exact replacement battery for Syma X8C, Syma X8W, Syma X8G quadcopter drones, no modification necessary! 2200mAh LiPo Battery - Higher capacity than the original Syma manufacturer battery (usually 2000mAh) Higher capacity provides longer run time for the quadcopter and applications High C rating (30C) - higher performance and more power. 7.4V 3.5mm banana connector