HOW TO: Improve Your Battery Life (Calibration Tutorial)
1. Turn your phone on and charge it for 8 hours or more
2. Unplug the charger
3. Turn your phone off and charge it for one hour
4. Unplug the charger
5. Turn on the phone and wait 2 minutes
6. Turn your phone off and charge it for one hour
7. Unplug, turn it on and use as normal. Your battery life should now be a lot better
