DJI Mini 2 Two-Way Charging Hub Simple elegant and; functional the charging hub charges up to three batteries in sequence and can even be used as a power bank to charge additional devices. Charge Multiple Batteries The charging hub automatically charges upto three batteries in sequence the LED lets you know the battery level at a glance. Impressive Charging Experience Supporting quick-charge and; USB PD fast-charging protocols it can charge batteries upto 29W. If used together with the 18W charger it will take four hours to charge all three batteries in the hub. The hub also recognises the battery that is at the highest level and proceeds to charge this first. Easy to Carry No need to carry round extra power banks the hub is capable of charging a variety of devices such as the Pocket Series Osmo Action phones and; tablets..