Original 7.4V 2500mAh Spare Battery for 4DRC F11 Drone Quadcopter. Original 3.7V 2000mAh Spare Battery for 4DRC V4 Drone Quadcopter. Foldable and Easy to Carry. 4DRC V15 provides perfect solution for indoor and outdoor flying, foldable and lightweight makes it exceptionally easy to carry.
