Overview of the DJI Two-Way Charging Hub for Avata 2 Intelligent Flight Batteries Quickly prepare for a day of shooting by using the DJI Two-Way Charging Hub for Avata 2 Intelligent Flight Batteries to recharge your batteries. Saving yourself the trouble of charging each battery individually, this hub will recharge up to three Avata 2 flight batteries in sequence. The charging hub also has a convenient "power accumulation" function that is designed to get you a full battery in a pinch. The feature is designed to transfer the remaining power from multiple batteries to the one with the highest charge. As an added convenience, the hub also has a USB output for simultaneously charging a mobile device. Features of the DJI Two-Way Charging Hub for Avata 2 Intelligent Flight Batteries For DJI Avata 2 Flight Batteries Charge up to 3 Batteries in Sequence Power Accumulation Feature Charge Mobile Devices via USB For more DJI Products see here.