I have had this problem for a few weeks now, tried a few different fixes that I have come across online, nothing seems to work so far.
I have attached part of my battery report, which shows the battery at 100% when turned off, then 2% next time I turned it on.
Now I can see the issue myself, is that it says suspended. I assume this should actually be stopped.
I guess the issue is that my laptop is only sleeping when I shut down. I have tried to reset power options, change them, etc, but this problem seems to persist.
I have a Dell Inspiron 11 3000, if that's any use. It's about 2 years old, and the battery report seems to be fine in terms of actual battery health.