Battery Info is application which displays the battery charge level in percentage(%) and in amperes(mAh).
It also shows how long the phone has been charged or unplugged from a charger.
You can also set " Automatic Power Save " timer to make your phone battery last longer!
For example by setting it on for night time or when you are sleeping or not using your phone!
Note that " Battery charge " level indicator will be accurate only after the first full charge of the battery!