This is how you charge your smartphone with a Chimpy Powerbank:
1. Turn the Chimpy Powerbank on:
a) Push the black button on the upper left side of a green Chimpy Powerbank
b) Push the blue or white button on the lower left side of a black Chimpy Powerbank
2. Plug the correct cable for your smartphone into the charging port of your smartphone.
a) If you have rented a Chimpy Powerbank at a Selecta machine, you need to plug the USB-C or lightning port on to the Micro-USB plug before you can use them. *→ picture?*
3. Charge your phone.