3.7V 750mAh LiPo NightHawk Agility RC Quadcopter Lithium Battery Original 3.7V 750mAh battery for thel NightHawk Agility Fits NightHawk Agility RC quadcopter. High-performance batteries extending aircraft flight time. Quadcopter fliles longer than 600mAh, 650mAh and 700mAh batteries