Get the Smallest Battery saver for your phone by gejos
Battery Saver will change the systemROM configuration for better battery life.
Unlike other applications do, this
application will not cut-off the
mobile, wifi, etc connections while
sleep, will not slow down the data
connections, will not slow down the processors, etc. but this application will configure for the best battery settings in the system ROM for better battery life.
Note:-Root access required to use this app