Thunder Power RC 2250mAh 3-Cell/3S 11.1V G8 Performance Pro 45C LiPo Battery Max Continuous Discharge: 45C Max Continuous Current: 101A Weight (grams): 179; Dimensions H x W x L (mm): 24 x 35 x 104 Ideal battery for Trex 450 and other similar class size helis Adult supervision is required