Okay, here's the deal. I bought my Macboook a little over a year ago. I made sure to calibrate it the first day I got it. Now, I'm no saint. I didn't calibrate it every single month. But I went through the cycle about once every two months or so. Recently, I've realized my battery was dying WAY too soon. It had been a while since I last calibrated it. So, yesterday, I did just that. Today, Coconut battery is saying my battery has gone through 257 cycles (which I can believe), but also that my battery is only holding/ has a health of a 48% charge. That's ridiculous. I have my backlight on the lowest setting, and I can only expect to get an hour or so out of my computer. WTF?! Of course, I'm out of warranty. Don't tell me I need to go drop $130 on a freaking battery. Am I missing something here? EDIT: My expectations aren't super high, either. I realize I shouldn't expect a 100% capacity, and I also know it should die a wee bit faster than others because I put in a 7200RPM drive. But I've gone through 12% of my battery just typing this!