I've been using my Moto 360 for the last week and the battery life has been great. But this morning my 360 went from 100% battery life down to zero in 4 hours. I didn't change anything on my watch, so it's puzzling.
Exact same thing happened to me on the exact same day... can't be a coincidence. Battery is still draining from 100% to 0 in a few hours... did you figure out why this happened?
No, I haven't had any issues since that one time. I suspect it may have been my heart rate monitor being activated from the previous night and it didn't turn off.