The item is a set of professional and practical WLtoys RC helicopter spare parts， which includes one USB Lipo battery charger and 5pcs 3.7V 200mAh Lipo batteries， and designed to provide power for your WLtoys V911 RC helicopter.Features- Material: durable hard plastic and Lipo.- Includes one USB Lipo battery charger and 5pcs 200mAh Lipo batteries.- You can use the USB battery charger to charge up to 2pcs Lipo batteries at a time.- Battery capacity: 200mAh. Voltage: 3.7V.Package Including1 * WLtoys V911 RC Helicopter Spare Parts USB Battery Charger5 * 3.7V 200mAh Lipo Batteries