For developers or users wanting a custom "Battery Monitor" build, you can compile open-source projects using or Docker :
Apps like Battery Monitor by Glgjing or Cross-Device Battery Monitor are available on the Google Play Store for direct installation.
What app do you download to monitor the battery information?
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
Locate an open-source project, such as BatteryHub on GitHub . Build via Gradle: Ensure you have Gradle installed.