Very good condition. The box may have been opened or replaced but products are fully tested & functional Using high-density lithium the DJI Intelligent Flight Battery for Mavic Air can deliver up to 21 minutes of flight time. When depleted charge it up with a compatible Mavic Air charger. The onboard LED capacity gauge lights up to display the current battery level so you can know if a recharge is needed without mounting the battery to your Mavic Air. Features. Capacity 2375 m Ah Voltage 11.55 V Max 13.2 VBattery Type Li Po 3 S Energy 27.43 Wh..