Apps like Battery Monitor by Glgjing or Cross-Device Battery Monitor are available on the Google Play Store for direct installation.

If you prefer a containerized environment, you can use a Dockerfile to build the image and run the build command internally to generate the APK. 3. Safety and Installation Steps

Run the command ./gradlew clean check assembleDebug in your terminal to create a debug build APK.

Could you specify if you are looking for a (like Victron or a smart shunt) or a particular open-source project ? I can give you more exact build instructions if I know the project name.

Some hardware-specific monitors (like smart battery shunts) provide APKs directly via their official websites or representative emails. 2. Build Your Own APK from Source

For specific versions or builds not in the Play Store, reputable sites like APKMirror or the Aurora Store are generally considered safer for downloading APK files.

You can often find native battery info by dialing *#*#4636#*#* in your phone's dialer to access the "Testing" menu.

Once installed, the app will likely ask for permissions to monitor system resources; only grant what is necessary for the app to function (e.g., battery stats).