Brainstream SOI.+ User Manual page 5

To charge a mobile phone
Connect USB cable with USB (standard size)
Out port of SOI.+ and connect with your
mobile phone.
The power bank function stops below 5 % capacity
of battery, light function still active.
To charge SOI.+
Connect micro USB charging cable (comes with
SOI.+) with micro USB port and connect with
computer or AC adapter.