apparently, it looks like i can now only go about 1 1/2 hours running the macbook on battery power before it expires, when a few months ago, i could go for 3-4 hours (even up to last month), but all of a sudden, battery life keeps shrinking so fast, two days ago, it went to 2 hours, now its 1 1/2 hours. i calibrated the other day and it's worse than before. btw, my current battery capacity is actually higher than it was before. 41 cycles for my battery and a 3 month old computer. i hope my battery isn't going dead. you think a few more calibrations should do the trick to get the battery running like it was before? thanks.