Super Fly 5-port Fast Charger Sets X5A-A05(VA12A) with 3.7V 720mAh Lipo Battery for RC Helicopter WLtoys V931 F949 Brand: WLtoys Model Number: X5A-A05(VA12A) Type: Battery Chargers Battery Capacity: 3.7V 720mAh 25C Battery Voltage: 3.7V Size/Dimensions: 12.5 * 8.8 * 4.8cm Features: High quality and durable perfermace. Portable and easy to carry. X5 charger can charge five battery once time. Safety for the using time of battery. Can be applied for many types of RC vehicle. Electrical Outlet Plug Type: Plug Type “A� (USA, Canada, Mexico, Japan)