I currently have an Epix Pro and I use it to track a 45-90min workout about 6 days a week. I also have it set to "most accurate" (GPS + Galileo + GNSS) positioning and to sample blood oxygen all day rather than just at night, so it's getting quite a battery workout for a non-ultra-endurance-athlete user. When I opened this thread I decided it was a good time to charge it, since I'm in a work call anyway, and it was only at 53% after about a week since the last charge. I'll have it plugged in for 20-3min and it'll probably be around 90% when I put it back on after the meeting, and I'll find some other convenient time next week... but not until next week.