Powerleft is a cool new tweak for Jailbroken iPads that gives you the estimated time remaining on your battery, much like on Apple’s desktop OS. The ‘widget’ can be placed either side of the carrier name/iPad on the left, the clock in the centre or the battery percentage in the right. It can also appear as an overlay in the bottom corners of the screen. Custom strings can be added, to add things such as “time remaining:” or anything else you might wish to put.
As you can see in the screenshot, there are plenty of settings to be played with to get the perfect position and characteristics.
Powerleft is available now (iPad only) for $0.99 in the BigBoss repo in Cydia.