Battery does not charge properly
When I plug in my power cord (fully functional when testing other laptops), my MacBook Pro 2017 often does not charge at all. On the rare occasions it does, it charges extremely slowly and often switches back to not charging. The battery percentage also jumps around (one moment "charging" at 16%, next second charging at 14% etc). My battery is normal and doesn't need replacement. In the past 30 minutes of "charging", the battery has gone from 10 to 13%. My macOS is 11.2.2.