「Borrowing a portable charger」
Find the nearest ChargeSPOT using the map feature. Using the built-in QR-code scanner scan the QR-code on the machine screen. A portable charger will come out from one of slots on the sides of the machine.  
A deposit is required to borrow a charger.

「Returning a portable charger」
Find the closest ChargeSPOT using the app, and return it in any empty slots. 
In the case the charger is not returned within 48 hours or of any loss or damage to the charger, the deposit will not be returned.

ChargeSPOT

Additional Information