I've had the watch for a long while, through various software upgrades and I know to do a full power off after an upgrade or sometimes you get a bit of battery drain.
With 5.30, I'm getting 2.5-4.0% drain per hour. Nothing has changed on the watch or how I use it. Full power off done several times.
It was 100% 13 hours ago and now it's 55%.
Anyone else seeing this?