Battery Life Extender helps you keeping your device battery in a healthy charge range in order to get a much longer battery lifespan. This range is by default from 25% to 85%, but it's fully customizable. And it shows an easily readable battery indicator on the status bar. Completely free and no ads!

Lithium-ion based batteries age faster at charging levels below 30% and above 80%. Ideally, staying within these limits and avoiding complete charging/discharging cycles should be completely automatic (some electric car power systems do). Unfortunately, most smartphones do not have (yet) the ability to stop charging without being unplugged*.

Note: Because of this, this app does not automatically extend the life of your battery. It merely assists you so that you can interrupt the charging process at an optimal level.

* (Some devices indeed have this capability, but this requires the device to be rooted. If you are interested in this feature, me ([email protected]) and specify your phone model to see if it is elegible. If there is enough interest, I will include this function in the Pro-Features package.)

This app gives you an audible and visible notification (including colored blinking LED when ed by device) when the battery reaches a -defined LOW and/or HIGH level so that you can plug/unplug the device if convenient. The default range of 25% to 85% is a good compromise between battery care and usability in most cases. As long as you don't dismiss the alert, the sound will repeat every 5 minutes when charging (high level) and every 15 minutes when discharging (low level). About once every other month, we recommend to fully charge and discharge the battery so the internal power gauge can calibrate itself.

You may set a silent period (from-to times) in which the sound will be disabled. The notification symbol and LED will still be shown when a limit is reached.

Battery Monitor shortcut: At the top right corner, the app shows a battery symbol with the current charge level. Pressing it calls the system's own battery usage monitor.

If the levels LOW and/or HIGH are enabled, after reboot, the app will reactivate itself automatically.

This app has been carefully designed to use very little resources.

The Highlights:
• Helps to operate the battery in the healthy range thus significantly extending its lifespan
• defined LOW/HIGH levels
• Battery indicator on the status bar
• Customizable sounds
• Customizable silent time
• Very friendly and clean design
• Uses very little resources
• Ad-free!

On Android 7 and newer, please turn off the battery optimization for this app (App info > Advanced > Battery optimization). Otherwise the app will not work reliably.

As of version 3.1.0, we introduced In-App-Purchase. All functionality stays the same for the free version. But if you want to enjoy some extra features, just enable the Pro-Features option in main menu. You will get these new features:


• Logging of plug and unplug times
• Notification tones can repeat 1, 2, and 3 times
• Battery temperature indication (in Celsius or Fahrenheit)


The log of the plug and unplug times will log every charging cycle including time and battery level as well as the duration of each cycle. This will help you better assess how long the charging process takes and how long you are running on battery. There is no limit on the number cycles recorded, and you can delete them individually or as a whole.

Short charging periods or charging interruptions below 5 minutes will be ignored in the log.

// Option A // 5e7015

To Battery Life Extender mod from happymod.completedownload.net.
You need enable the option "Unknown Sources".
1. Click on the above link to Battery Life Extender mod APK.
2. Save the file in your device s folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B // 5s5x38

To Battery Life Extender from HappyMod APP, you can follow this:
1. Open your browser and the HappyMod APK file from happymod.completedownload.net - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android s and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Battery Life Extender in HappyMod App.

Why does the app say I have no internet connection? q1as

This issue may occur due to temporary server problems or app glitches. Ensure your device is connected to a stable internet connection.

What should I do if the app is lagging? 4b5en

Lagging can be caused by insufficient device resources. Try closing other apps or restarting your device to improve performance.

Why can't I effects? 4w642l

ing effects may fail due to network issues or server problems. Check your internet connection and try again later.

How can I fix the network issue while using a VPN? g1zt

Sometimes, VPNs can interfere with app connectivity. Try disconnecting the VPN and see if the app works without it.

What can I do if the app keeps crashing? q2j6q

If the app crashes frequently, consider clearing the app cache or reinstalling it to resolve potential bugs.

Why can't I access AI modes in the app? 4z4l1i

AI modes may require a stable internet connection. Ensure your connection is strong and try again.

If AI modes are not accessible, it could be due to server issues or your internet connection. Check if other apps are working properly. If they are, the issue might be with the app itself.

Steps to resolve:
1. Check your internet connection by opening a web browser.
2. Restart your device to refresh the network settings.
3. Open the app again and try accessing the AI modes.

What should I do if the app is not ing templates? 6v4k2t

If templates are not ing, it may be due to a poor internet connection or server issues. Check your connection and try again later.

Why does the app keep saying 'no internet' even with a connection? 5b3o2o

This could be a bug in the app or a temporary server issue. Restarting the app or your device may help resolve this.

Persistent 'no internet' messages can indicate a problem with the app's ability to connect to its servers. Restarting can refresh the app's connection attempt.

Steps to resolve:
1. Close the app completely.
2. Restart your device.
3. Reopen the app and check the connection.

Why does the app crash when importing 4K videos? 1h6ml

The app may crash due to high resource demands when handling 4K videos. Try using lower resolution files for smoother editing.

4K videos require more processing power and memory. If your device is not equipped to handle such high-resolution files, it may lead to crashes.

What should I do if I keep getting network errors? 3i2d3u

Network errors can occur due to unstable internet connections. Try switching to a different network or resetting your router.

Network issues can disrupt the app's functionality. A stable connection is essential for smooth operation, especially when using online features.