I have an issue with my Dual HRM. After replacing the battery in the device it only stays online for about 5 minutes or so, after which it disconnects and cannot be connected again until the battery is removed and then re-inserted . i have even reset ( installing the battery upside down ) it a number of times and once put back together it stays online for about 5 min top sand then cannot be located again.
i tried both ANT+ and BLE and the same issue occurs, its happening on both my Edge 530 or my forerunner 245 when its connected,
i also bought a new strap as i thought there might be issues with the connectivity but same issue, any ideas?