Add more functionality to your spare Mavic 2 batteries with the Battery to Power Bank Adapter for Mavic 2 Pro/Zoom Batteries from DJI. Power banks are a great accessory for mobile devices, providing them with an emergency source of power when needed most. With this accessory, you can convert any of your existing Mavic 2 batteries into one. Simply connect the adapter to your spare Mavic 2 battery to gain two USB Type-A ports. Recharge smartphones, tablets, and other compatible devices with 10W of output power per port.