About this item This charger is for syma serial and can be charging for 3.7v lipo batterty. Come up with 4 pcs 650mah lipo batteries. Applicable for Syma X5 serial Portable and light, charge at any time you want. Safe and east to connect Product description 3.7V Lipo Battery USB Charger and 4pcs 650mAh Lipo Battery for Syma X5 Serial UAV Drone Description: This charger is for syma serial and can be charging for 3.7v lipo batterty. Come up with 4 pcs 650mah lipo batteries. Applicable for Syma X5 serial Portable and light, charge at any time you want. Safe and east to connect Package Included: 1 * syma battery charger 4 * 650mAh lipo batteries.