LowPowerBanner Replaces iOS 5 Low Battery Alerts With Notification Banners!
ModMyi has posted LowerPowerBanner, which is a simple new tweak to replace your iOS 5 deafult low battery alerts on iPhone or any other iOS devices with the new good-looking notification banners.
The banner is a good alternative since it does not interrupts you while using your phone and will disappear on its own after almost a second.
LowPowerBanner offers alerts you at 20% and 10% battery marks.
You can download it for free from the BigBoss Cydia repository.