Rapid battery drain from 25%

For the past month the watch turns off when reaching battery levels around 25%, it suddenly jumps to 1% and then 0% and shuts off without prompting to activate battery saver.

I think the watch is overly optimistic when calculating the battery draining for some reason and only catches up when it is finished. This is very annoying since I will just lose power with even a battery saver prompt.

Is there any way to trigger reset of the way the software estimates battery life? I have already been charging it to 100% for 4 weeks to try to recalibrate.