Legitimately change that shit ASAP. I work in IT and changing bulged batteries is my bread and butter. It’s super dangerous and only gets worse the more the bulged battery is used. I had one a couple of weeks ago that was busting the laptops case in half. Shit is ready to bust and I’m not gonna be the one that’s gonna be around when it does.
Change that shit and be careful when you do. If you prick it you’re fucked and that’s nothing to say about the release of pressure causing a rip in the batteries plastic. That can cause it to explode on removal if the case was the only thing holding the battery together.
Seriously monkey. Batteries are on Amazon and you can get a tool kit for like $30. I use a chinesium one from Amazon in the office. Get one with the guitar picks.