Root Battery Saver Pro v1.6.8

Battery Saver Pro is a power saving for Android phones/table, It's easy to use
and if turn on the 1-4 level power-saving mode, the app will automatically open
you want to the power intensity, we directly reduce the cpu power down. (need
root)

Root is necessary

To maintain normal for 2 days in order to know is [...]

More: http://mobilehere.net/2012/09/root-battery-saver-pro-v1-6-8.html