GoolRC 4Pcs 3.7V 500mAh 25C Lipo Battery and X4 Charger Super Fly Charger Battery Sets for Hubsan H107D FPV Quadcopter Hubsan H107D FPV Quadcopter Supper Fly Charger Battery Sets 3.7V 500mAh 25C Lipo Battery 4Pcs and X4 Charger Good product with high quality material. It can help your quadcopter fly much higher and quicker, more secure. Fashionable design, match with your quadcopter perfectly. Easy to install and convenient to use.