The battery that was inside the macbook was severely swollen, to the point it was bending the frame of the computer. I noticed this when the macbook was sitting on a granite surface and it would rock back and forth. This should have never been shipped in this condition. Not only did I have to replace it for an extra 90 bucks, it was also very unsafe to ship. The macbook itself was in good condition and worked properly, no complaints there. I probably should have returned it, but I wanted to try the battery fix.