You can check the attached battery’s level by looking in your phone’s quick settings or by using the battery status button.
To check battery level, do one of the following on your phone:
Open quick settings by swiping down with two fingers. You’ll see two battery icons, attached battery
and phone battery
. Touch either battery icon to view more information and settings.
Or, use the battery status button:
Press the button and look at the status light:

If the battery is detached and not charging:
| Status light | Meaning |
|---|---|
| Rapid blinking green | Full charge |
| Steady green, then off | 51-99% charged |
| Steady amber, then off | 16-50% charged |
| Steady red, then off | 6-15% charged |
To see if the attached battery is charging your phone, look at the battery icon in the status bar at the top of your home screen:
| Attached battery charging phone. | |
| Connected charger charging phone. | |
| Attached battery not charging phone’s battery, which is fully charged. |