Cheerwing 3.7V 650mAh Lipo Battery (4PCS) with 4 in 1 Battery Charger for Syma X5SW X5 X5C X5C-1 RC Quadcopter Drone Parts 650mAh Lipo Battery(4PCS) with 4 in 1 Battery Charger for Syma X5SW X5 X5C X5C-1 Charger Voltage input: DC 5V; Voltage output: 4.2V  5%; Current output: 350mAh - 410 mAh Charging 4 battery at one time, Over charge protection, Short circuit protection Package Includes: 1pcs x charger, 4 pcs x 650mAh batteries