When it comes to battery widgets, generally the prevaling questions are "Does it look good?" and "Does it function well?" and thankfully this application does not compromise on either.
The app looks fantastic and is very cleanly designed, all while closely following the Android Design Guidelines. Despite the application's "Beta" tag, the app seems solid and works great.
This is one of the better looking battery widgets out there, while it is still in beta form, it works great on both phones and tablets - so give it a whirl - it's FREE:
Battery Widget Reborn (FREE) - Google Play Store