Lowers the CPU frequency when the screen is locked (root) Unlockable FeaturesĪutomatically clears apps when the screen is lockedĬlears out apps that drain your battery in the backgroundĪllows power saving modes to be changed automatically on a scheduleĪllows power saving modes to be changed automatically when power is lowĪutomatically disables the network when the screen is turned off You can also unlock them by purchasing the PRO version of the app for $2.99. The coins are awarded by installing other free apps. There are other modes that you can unlock with coins. There are three saving modes that you can utilize free of charge, Phone Cooler, Advanced Saving, and Notification Saving.

When you select optimize it will go through and kill apps that are draining your battery.

When you fire up the app you are greeted by a screen that displays some battery stats and a single button that says “OPTIMIZE”. It has one mission and one mission only, to save your battery life. DU Battery Saver overviewĭU Battery Saver is a free app on Google Play. Sometimes you have to give something a try before you can change your mind. DU Battery Saver was that shot for me.

Du battery saver app android review