LowPowerBanner 1.4.3 Cydia Tweak
Nakeninny & PrimeCode has released LowPowerBanner 1.4.3 for iPhone & iPad at iPhone Family Wolrd. LowPowerBanner v1.4.3 update delivers full support with regard to iOS 6, some languages support and other performance enhancements as well as various bug fixes.
Basically this app change your low battery alerts into a personalized low power banners. You can customize it from settings.