It can store and charge batteries. When used with the DJI 65W Portable Charger, it can fully charge three Intelligent Flight Batteries simultaneously* in just 68 minutes**. With at least one battery stored, it can serve as a power bank, using the remaining power from the battery to charge devices such as goggles or smartphones. * The number of batteries that can be charged simultaneously depends on the power of the charger used. Using a charger above 45W allows you to charge three batteries at the same time. Using a charger rated between 30W and 45W allows you to charge only two batteries simultaneously. Using a charger below 30W will charge the batteries sequentially from the highest remaining charge to the lowest. Refer to the charging protocols supported by the charger. ** Charging time is measured in a test environment with a temperature of 25° C (77° F). Actual charging time may increase due to higher ambient temperatures or voltage variations in different regions.