This is a little strange. I first had one of the June 2009 15" unibodies. According to Coconut, the battery was around 6500 original capacity. After I calibrated it, it went to around 6700 and it gave really good battery life. Then, the anti-glare option came out so I sold that machine at got one of the new anti-glare ones. The original capacity showed 6500 as well, but the current was only 6300 after one battery calibration. So, after using it for a few months, I calibrated the battery again. Now it's showing 6224 as original capacity. Overall battery life is less than my original June 2009 unibody. Sure the battery life is pretty good, but I miss the extra life the first one had. Is this just a bum battery, or am I missing something?