If the app is slow to refresh your Birds' battery levels, the coloured light indicator on your power kit is the next best way to identify your Bird's power levels.
If a red light appears on the power block while the Bird is plugged in, then it isn't fully charged and requires more time plugged in.
A green light indicates that your Bird is completely charged and is ready for release.
You will see the accurate and correct charge percentage on your phone upon properly releasing the Bird in the morning.