Issue: The battery usage time for "Android System" is over-reported by a factor of five.
To replicate:
- Charge phone to 100%.
- Take note of the time the charger is disconnected.
- Use the phone normally for a day or so.
- Go to Settings > Battery > Battery Usage.
- View the battery usage for "Android System" and compare the stated usage to the duration since the charger was disconnected.