|How to use:
To charge the phone with the battery case:
Slide your phone gently into the battery case, and make sure the phone is well connected to the micro connector of the battery case.
To charge the battery case:
Connect the charging cable to the battery case’s USB input interface, and then connect the cable to a USB charger.
When charging the Battery Case with the phone attached, the phone battery will be charged first. After the phone battery is fully charged, charging of the battery case will begin.