Accubattery - Monitor's battery capacity through the use of science

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.

BatteryCare - BatteryCare - Application and good practice guide for maintaining and optimizing the battery of the modern laptop

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.

coconutBattery - With coconutBattery you are always aware of your current battery health. It shows you live information about the battery in your Mac and iOS devices (iPhone, iPad)

Power Battery - Power Battery, as the most professional battery saver app, could get up about 60% more battery life for Android phones or tablets.