BM2

wanbaolu

About this app

Battery Monitor BLE is an application for car battery monitoring, which can monitor the real-time voltage of the car battery; count the historical voltage of the battery; it can automatically test the battery startup voltage, and support idle and high-speed charging tests. All data is synced to the mobile app via Bluetooth.

And provides a Wear OS version, with functions including: displaying device data, battery test data, startup test data and charging test data on the Wear side through communication with the mobile phone BM2.

Ratings and reviews

Love this app! As others have said, wish we could select battery type. I am using this in my camper van and would love to be able to set alerts that my battery is low, and the percentages here are meaningless if you have AGM batteries. At a minimum, it would be great to set alerts on voltage rather than percentage, i.e. alert when voltage drops below 12.0V.

(Edited 3-9-20) There are multiple issues. First, the advice the developer keeps posting here does not keep the app from repeatedly popping up. It periodically restarts, I think maybe if it sees it's in Bluetooth range of the sensor. It can be Force Stopped in the Apps setting, but eventually it pops up again! And there's no way to remove the notification except killing the app manually. Other problems: There is no way to export the data. When the app is started, if you don't notice that it says "UnConnect" in small letters at the top, you may think the displayed status and animated voltage are real time - but they're not, they're old data until it connects.

This needs a function to export data, which is very helpful when getting warranty replacement on a weak battery. Also, if you have multiple sensors, the app keeps changing to the sensor with the strongest bluetooth signal. It needs to stay on the chosen device until the user changes it. It would also be handy to have a quick device selection on the main screen, rather than having to go into settings to switch devices every time.

What’s new

1. Compatible with Android 15
2. Optimized related details