BatMonitor

Read your BMS over Bluetooth LE. Direct, in real time and no account.

Android 8.0 or higher · Free download from GitHub Releases

Features

Everything your BMS tells you

No middlemen: the app talks to the BMS over Bluetooth and renders whatever it answers.

  • Direct Bluetooth

    Connects to the BMS over BLE and reconnects on its own if the link drops. No cloud, no relay servers.

  • No account

    No sign-up, no email. Open the app, find your battery and read it. Your data stays on your phone.

  • 24 cells with voltages

    Every cell voltage in millivolts, with its bar and the pack imbalance computed on the fly.

  • Protections

    Overvoltage, undervoltage, temperature and current. When a protection is active, you see it in Summary and Status.

  • Balancing

    Balancing cells and imbalance in mV. Ideal for spotting a pack that starts to drift out of balance.

  • Light and dark themes

    Follows the system theme. Dark is the original, light keeps figures readable in sunlight.

Updates

What's in the latest version

v1.5

Version 1.5

What's new

Adsterra ads restored and new Settings screen with update check and an About section.

Your battery, in a minute.

Install the APK, switch on the BMS and move closer. That's it.