YKS Upgraded 3.7V 500mAh 25C Lipo Battery (4 PCS) with 4 in 1 Li-PO Battery Charger for Syma X5C X5C-1 X5SW Parts Upgraded Battery Charger Quick charging 4pcs batteries simultaneously, which effectively reduces your charging time. Auto Shut Off and built-in LED indicator, over charge protection and charging indicator light shows charging status. Suitable For: Syma X5 X5C X5C-1 X5SW, Hubsan H107 H107L H107C H107D,UDI U816 U815 U816A U818A,JXD385, WLToys V202 V939 V252,JJRC H5C,HCW 553 Quadcopter. Charger Voltage input: DC 5V; Voltage Output: DC 4.3V,350mAh. Battery Constant Discharge: 25C. Package Includes: 4 x Li-Po Battery, 1 x Balance Charger, 1 x Power Cable