How to use battery tester
1. Open the battery cover of the car, find the battery positive and negative.
2. Loose the screw positive and negative, install the red and black connector of the product to the positive and negative of the battery accordingly. Then firm the screw.
3. Press the App on your phone it should connect to the device. As it is Bluetooth 4.0, it needn’t to pair and can connect the auto battery monitor automatically.
4. Allow all permissions when run the app.
5. Review the function details.
6. If the top left come up red letter, please kindly press it to connect the Bluetooth 4.0 again.
7. System setup
8. Notification bar message