"Battery Overlay Percent" is a cool application which will help you to display the battery percentage over your battery icon. You need not to have rooted.
- Customizable size, position and colors.
- No root or ROM modifications required.
- Battery efficient (won't eat up your battery just to show you percentage...)
- Get nice percentage on stock roms without modifications.
- Trying to use minimal permissions required.
Remember to read the description completely before you try it.Â
Get it from Google Play Store