Drone Pit Stop 2 X 520mAh Battery for Hubsan X4 H107D Plus (H107D+) FPV & External Charger - 2 Batteries Set Includes an external charger - Have loads of fun flying while the other 2 batteries are charging. 2 x 3.7 520mAh Batteries & 1 Dual External battery charger for Hubsan X4 H107D+ Enjoy extra flight time (based on flight conditions) together with the included batteries. The Hubsan X4 H107D+ and X4 H107C+ are using the same batteries but with -DIFFERENT- plastic caps (that can be removed and replaced) - make sure you order the right battery to fit your drone model 100% Satisfaction Guaranteed