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.