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.
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.
Hibernator - Download Hibernator Pro MOD APK (Full Unlocked) - Latest Version 2.18.1 Free for Android. save battery power and improve performance
Accubattery - Monitor's battery capacity through the use of science
JuiceDefender - Über 5.
Power Battery - Power Battery, as the most professional battery saver app, could get up about 60% more battery life for Android phones or tablets.