I opened my laptop for unrelated reasons and was greeted by a slightly bloated battery. Idk if the picture makes it clear, but the individual segments of the battery have slightly raised above the solid structure pieces in between. Laptop is just over a year old. I have already contacted the manufacturer, but with the holidays and everything I'm not sure when I'll get an answer.
Basically, I'm worried about the potential danger. I use my laptop a lot (usually plugged in). Since the battery seems to be screwed in and not glued, I could just take it out, but idk if that would be better than just leaving it in until the manufacturer sends me a new one or has me send it in for battery replacement.
Also, I hope that consumer hardware posts like this are accepted in this community. The rules at least don't state otherwise.
Edit: thank you all for your comments. I brought the bloated battery to a recycling center the day after I made this post. Communication with Medion support eventually led to me talking to a very pleasant service technician on the phone. He sent me a new battery, which I just installed. Everything is working great again.
I actually had to check some resources myself, as I was unsure if it was really useful in that case. Those blankets usually help stopping a fire by limiting the amount of oxygen that gets to it - without oxygen, no fire. Unfortunately, many batteries have oxygen in them, not much, but enough to keep it going. So the fire won’t stop in that case. But what the fire blanket does, is give a layer of insulation, thus reducing sparks flying around and reducing the temperature directly above it.
Fire blankets are always a very useful tool, as they are easy to use and at least protect the person holding it (in small fires, obviously). If it doesn’t help, it does not make it any worse.