1Can automatically detect the battery power and charge the battery once from high to low. 2Quick and safe charging, overcharge/overheat, / overload/overcurrent/overvoltage protection and short circuit protection 3Special designed for DJI Mavic Air2, an be used in conjunction with the power adapter to extend the charging interface to multiple units. 4Takes about 200 minutes to recharge four batteries, reliable and durable in use. 5High quality plastic material manufacturing ensuring maximum durability. Condition: 100% Brand New Item Type: Drone Battery Charging Hub Color: Black Shell Material: Plastic Input: 13.2V 2.82A (Maximum) Output: 13.2 V Type: RC accessories It needs to be used with the original charger. It takes about 200 minutes to charge from the battery with the highest power Fitment: Fit for DJI Mavic air2 Drone 1 x Drone Battery Charging Hub 1 x Manual