Removed laptop battery because it was overheating and got puffy, laptop now uses wall power

Was fine for a long while but I’m now finding that the number keys and some top letters are hard to use now. No spills or damage has happened to the laptop, the only thing I can think is that, since these keys are right where the battery would be, something internal is no longer supported and has come away.

Not going to put the battery back in to test because it’s scary to look at, more curious than anything since I want to get a new battery anyway.