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, press the battery status button and look at the status lights:

| Lights on | Meaning |
|---|---|
| 0 | 0% charged |
| 1 | 25% charged |
| 2 | 50% charged |
| 3 | 75% charged |
| 4 | 100% charged |
If the battery is charging, a solid light turns on for each completed charge level and a light blinks for the current charge level.
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. |