It only happens when it’s wet, it then lasts only about 2-3 weeks. I think it must have some sort of leak current when it has been wet. Maybe changing the o-ring might help, but it looks ok and getting a new one seems difficult at the moment. There is no obvious humidity that could be dried out, so there isn’t much I feel I can do. Its a gen 2 I picked up used. I had a gen 1 before that with the same issue, but I also have a new gen 3 that hasn’t had that problem yet.
Nothing is staying connected to it, I only connect it to my garmin, which will then be off. Bluetooth on my phone is always off too.
Anyway, I was really only posting to tell people about the amazing rechargable CR2032 batteries!