I recently wanted to change batteries on my macbook since it was about 3 month ago I did a swap but I found it looking a bit strange; What should I do with it? is my house full off lethal acids now? It was bought over a year ago across the atlantic sea so I'm not sure there's any warranty left on it. P.S. And why? My room where I kept it is not exposed to direct sunlight so it can't be that.