Package included:3.7V 350mAh 3pcs + 3 In 1 Charging Charger + 3pcs Charging Cables
For UDI U818A WiFi FPV U845A WiFi FPV
Can Charging 3 battery at one time, Over charge protection, Short circuit protection
High Capacity Battery:it will bring you more power and longer flying time
Red Lights on: currently charging ;Red Lights off: charging completely