PowerPRO - Battery Saver - Although many do not believe that apps like these don't help, it's not. This app has one different trait, namely, enhanced battery saver mode. Its main difference from usual is that here will work in virtually any application except the most basic. This is very important when you are waiting for an important call, and charge the device, there is no way. Also, this app will monitor your battery and output information about it right on the screen. So you will always know the exact time of its operation, in different modes of consumption.