Visual tweaks that add even a touch of functionality to our phones will always get props from us. The latest to catch our eye is an app called ChargeBar that brings you a running battery meter to the top or bottom of your phone. Inspired by MIUI, this app has enough customizable options to make it fit any of your themes or home screens. It’s free in the market and should work on phones running 2.1 and above. No root required.