I have a backbeat pro 2 headset since 3 or 4 years and the battery recently died, I can't reload it anymore, the charging led remain red even if I let it charge several hours.
I dismanteled the headset and I saw the battery is on the left side. The battery is soldered to the PCB so if you want to change it you need a soldier iron.
The characteristics of the battery are: 5cm long and 3mm wide, 650mAh, 3,7V.
I think you can find similar batteries on internet but non official. I will try to change it mine soon, hope I will have no problem with a chinese battery.
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Just because I like to put up and not throw everything away...
Attila
crwdns2934271:0crwdnd2934271:0 Weress Attila crwdne2934271:0