Hi, my Runner 3 has been fine for a few months, but about 3 weeks ago it started suffering from excess battery drain. I've been though all of the forums and help, to no avail, I've followed all the advice, turned off sleep, heart rate monitor, etc and it pretty much goes from full charge to nearly flat overnight, or from full charge in a morning to pretty much drained by the evening even when no activities have been tracked. I even followed the advice to do a factory reset and the battery still drains in a few hours. Interestingly when I go for a run with music on, it seems to last pretty much as long as when there is no music and no activity being monitored.
Is this an inherent fault, or do I have a dodgy watch or does anyone have any advice, it's pretty much useless to me at the moment