EBeth0001 wrote:
I did charge it to 100%. It’s been 16 minutes and it’s at 82%. I’ll let it drain to 50% and then power it down until I decide what to do with it.
My advice is to keep using the watch if possible. Put it back on the charger if necessary, but keep its alive and let it sort out its post-update tasks instead of shutting down and having to start over, and over, and over...
You won't do any real harm to the battery by leaving it on the charger for a day or so. The charging system on Apple Watch is intelligent, and it will just stop the charge to prevent over charging, and continue to use the charger power to run the watch.
I and many other users have noticed that battery usage is often much heavier than normal for a few days after a software update. We believe this is because the internal storage gets reindexed after the update is installed, and there is probably a lot of processor work to do this and clear all the remains of the previous version. Usually this clears after a few days and everything is back to normal. However, you need to let the software do its job and not keep making it go back to the start line by shutting down.