DU Battery Saver was downloaded and installed by over 100M users and its latest stable update was on Mar 11, 2019. This application has adverts. Samsung and Gionee users highly appreciate the app.
Download the free .apk file of DU Battery Saver 4.6.6 and take a look at users' reviews on Droid Informer. This installation package takes up 9 MB of disk space and it can be launched on Android devices 4.0 and above.
According to the users’ opinions, you can find a nice design, full functionality, excellent performance and battery optimization among the advantages of the app. As users mention, the main drawbacks of this application are battery issues, ads every time and forced notifications.