About this app

Make the same smart choice as 600+ Million users do??, just try DU Battery Saver, a light but smart battery saver app with 5+ years of experience and expertise that can extends your battery life up to 80%??.

Why DU Battery Saver - Battery Charger & Battery Life was so loved by 600+ million people???
One-Tap Battery Saver
Junk Cleaner
- Identify your phone trash accurately and clean up to 1,200 MB junk quickly every time.
Phone Cooler
- Detect phone temperature, make power-consuming apps dormant and cool down your phone effectively.
- Save your battery power and optimize battery usage with just 1 Tap, longer the phone battery life up to 80% in Advanced Saving mode.


Junk Cleaner
This Junk Cleaner can quickly identify and clean up your phone trash, make the phone cleaner by removing up to 1,200 Megabytes of garbage on average;
Healthy Battery Charge
Healthy Battery Charge - Real-time monitoring mobile phone charging status, protection of battery health;

Powerful functions??
One-Tap Battery Saver & Battery Optimizer & Battery Saver
One-Touch Battery Saver - Just One Tap to save power,Instantly find and fix battery power consumption problems, effectively clean up the power consuming application to help you optimize the battery health. Indicate how much battery power will be saved if you use One-Tap Battery Saver;

Power Save Up To 60% & Extend Battery Life
Battery Saver - With years of experience and expertise, make power consuming applications dormant completely and extend battery life up to 80% max;

Battery Monitor & Battery Saver
Battery Monitor - Measure battery usage and monitor all apps that drain power while not in use and remind user about high power consuming apps in order to extend battery life and optimize battery health. Monitor all running-apps' power consumption and list the detail to the app manager, Battery Monitor, clearly shows the status of battery life and usage;


Super Long Standby mode
Battery Mode - Super long standby power saving mode, sleep mode, custom power saving mode, effective extension of battery life;

Battery Saver Widget
Our "Task Killer” battery saver widget will optimize your power consumption conveniently. The 4x1 widget makes it easier to manage Wifi, Data, Brightness, etc, and set power saving modes;



Phone Cooler
Cool Down - Accurate detection of phone temperature and battery status, provide high temperature warning notice, help to extend battery life and maintain the status of battery health;

APP Protection
APP Lock - Protect your privacy and security. Use a secure password or pattern lock screen to keep your Android device safe and private;
Wi-Fi Security Inspection
Wi-Fi Security Inspection - Scan available free Wi-Fi with single tap and protect your phone from any network attacks and keep your personal data safe;

Super Long Standby mode
Battery Mode - Super long standby power saving mode, sleep mode, custom power saving mode, effective extension of battery life;



Enjoy the colorful battery skin
Battery Skin - You can add your favorite battery skin, including landscapes, animals and other colorful skin;

DU Battery Saver & Battery Monitor & Battery Life & Healthy Battery Charge is the simplest and easiest way to keep your Android phone working well when you need it, and protect against poor charging, battery hogging apps, and overlooked device settings that shorten your battery life.DU Battery Saver is a 100% FREE and GREEN Battery Saver App. If you have any suggestions or feedback, please feel free to contact us and join us in making DU Battery Saver better.

App Permissions

This constant was deprecated in API level 21. No longer enforced.
This constant was deprecated in API level 8. The restartPackage(String] API is no longer supported.
Allows an application to call killBackgroundProcesses(String].
Allows applications to open network sockets.
Allows applications to connect to paired bluetooth devices.
Allows applications to discover and pair bluetooth devices.
Allows applications to access information about networks.
Allows applications to access information about Wi-Fi networks.
Allows applications to change Wi-Fi connectivity state.
Allows an application to read or write the system settings.
Allows applications to write the sync settings.
Allows applications to read the sync settings.
Allows applications to disable the keyguard if it is not secure.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.