Battery Monitor

Battery Monitor is a simple, practical Android app for keeping an eye on your device’s battery.

It gives you clear battery information at a glance, shows useful notifications, supports configurable battery alarms, and lets you review battery history over time.

Main features:

- persistent notification with current battery level, status, and optional details
- on Android 16 and newer, the main notification can be replaced with a Live Update showing the current battery level or temperature,
- detailed battery information, including charge level, temperature, voltage, health, and power source
- advanced battery information thanks to root access or Shizuku
- configurable battery alarms: for full charge, low battery, or custom charge thresholds; temperature and battery health
- battery event history with filtering
- CSV history export for further analysis
- home screen widgets
- no personal data collection

Battery status notification

Battery Monitor can show a persistent notification with up-to-date battery information. You can choose what is displayed, such as battery percentage, charging status, or additional details.

Battery alarms

Set practical alerts to help you manage charging and discharging. Battery Monitor can notify you when the battery reaches a selected level, drops below a chosen threshold, or becomes fully charged.

History and export

The app records battery-related events so you can review how your battery status changed over time. Logs can be filtered and exported to CSV for further analysis.

Widgets

Home screen widgets let you keep important battery information visible without opening the app.

Privacy

Battery Monitor does not collect, store, or transmit personal data. It focuses only on local battery monitoring on your device.

Project background

Battery Monitor is a continued and rebranded version of Battery Indicator Pro / BatteryBot Pro. The project aims to preserve a classic, clear battery monitoring experience while keeping the app working well on modern Android versions.

Improved:

- More reliable voltage reading (#142).

Fixed:

- Notifications opening Alarms instead of Current State (#139, thanks @matiamb).