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

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.

I'm happy with the Bluetooth range (~30ft), the information presented, the UI, etc. This monitor and app have been great for my travel trailer. I do recommend the device and app. Minus 2 stars because the app has to be manually forced closed. That's become pretty annoying! Fix that and allow export of the log data to excel and this would be a six star setup.

(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.

What’s new

1. Compatible with Android 15
2. Optimized related details