Greenify - Greenify is a mobile app that gives you greater control over your Android device's power usage, allowing you to get a lot more mileage out of your battery life without having to constantly plug it back into a charger.
SuperFreezZ - An Android app to completely stop all background activities of other apps.
DU Battery Saver - DU Battery Saver, get up to 50% more battery life for your Android phone. Battery Saver learns how you use your phone, then creates smart profiles that match your settings to your needs while getting more life from your battery.
Accubattery - Monitor's battery capacity through the use of science
Power Battery - Power Battery, as the most professional battery saver app, could get up about 60% more battery life for Android phones or tablets.
FreezeYou! - FreezeYou