Requires iOS 7
Also available, iBatteryInfoPro2 (iOS 8)
iBatteryInfoPro is a tweak that allows you to access to useful information about your iDevice battery and cable (if connected) , you can find all of them in its preference bundle or just show a pop-up with a simple activator gesture.
In this version you can read ALL the information that can be provided from your iDevice (20+), and also it can help you to save your battery life with programmed actions like : turn off GPS, bluetooth, airplane mode or adjust brightness when the battery reach a percentage point that you set!
Configure options from Settings app
See larger Screenshots below..