Yes, thats actually dangerous.

REPLACE THE BATTERY NOW!! IT MAY EXPLODE AT ANY MOMENT!! if it starts erupting it DOESNT stop with water!!! if you cant do it NOW take this thing outside of the house… like put it in a bag and keep it outside always away from flammable material !!!

Your laptop = 💣

Is it a lithium ion or a lithium polymer battery?

I heard one type is more prone to explosion, the other type leaks acid. Cant remember which

But yeah it looks like its going to explode. Get it replaced like nowww

You definitely want to stop using that lol. Dont use it!