Hello, I am having a weird problem, probably since the last update (I'm on 7.80). I charge my watch up to 100%, and when I unplug it, the battery starts draining really quick, i.e., some 5-10% every hour. If I restart the watch, though, battery drain is normal (the watch lasts 4-5 days). Perhaps some process is getting "stuck" when charging and then drains the battery quickly... Syncing to the phone? Trying to find networks and update? I don't know.
Does anyone else have this problem? I know that battery drain has been a recurring issue in these forums, but in my case it is happening under very specific conditions (and is, luckily, easily solvable... if I remember to restart the watch :)) .