What functions does the DJI Air 3 Series Battery Charging Hub support?

The Battery Charging Hub supports the new power accumulation* and external discharge functions.

• Power Accumulation: When you insert two or more batteries, you can long-press the function button to initiate the process where lower-charged batteries transfer their power to the higher-charged one. This helps concentrate the remaining power, providing you with longer effective flight time.
• External Discharge: The battery's power can be output through the USB-C port to devices such as smartphones and tablets at up to 82 watts.
  
  * Do not connect the charger, connect external devices, or insert/remove any batteries during power accumulation.