On the B-124 Battery
1. Make sure the battery is on. The switch on the battery should be towards Cigarette (if powering the battery through cigarette power outlet) or Hardwired (if the battery is hardwired).
2. Locate the B-124 code written on the battery, Should start with B124****
On the Phone
1. Make sure your phone's bluetooth is turned on.
2. Open the blackvue battery app inside the main blackvue app.
3. Click on scan and locate your Battery pack's number.
4. Click on the number and you will be able to see the battery status details.