3. DU Battery Saver & Widgets
The DU Battery Saver is an app that extends and improves the battery life for Android devices. With more than 10 million users, the Du Battery Saver app will help users solve their battery problems with easy to use pre-set modes and one-touch controls. Check battery status, health, temperature and more. Simply hit "optimize" and unused background apps will be shutdown. Get up to 50 percent more battery life with Du Battery Saver app. You can download DU Battery Saver from the Google Play Store here.