Zeal is a battery management system for your jailbroken iPhone or iPad

Lots of people take their battery life seriously, and it goes without saying that Apple provides the bare minimum of battery health and information tools; it has often been up to jailbreak developers to fill in these gaps.

A new jailbreak tweak release called Zeal by iOS developers Rabih M. and Stijn aims to answer all the cries from battery sticklers that have yet to be answered by Apple. It provides both an informative battery management interface that you can invoke on demand to see more about how your battery is doing and conserve power.