The reason for this post is that I'm having issues with my battery and I cannot figure out what is the cause. I have a mid-2010 MBP 17" i7 2.66. The battery's design capacity is 13,000 mAh. Current capacity (as reported by coconut) is only 5,448 mAh. And that's after only 163 loadcycles. My computer is only 14 months old - can anyone help me understand why my battery is functioning so poorly, and better yet tell me what I can do about it? I'm kinda at a loss.