Hey guys, This is probably a silly question, so my apologies beforehand. I did review the battery guide stickied but I couldn't find an answer :\ I purchased a used 13" Aluminum Late 2008 Macbook. That being said, the battery has some wear. Currently it's at 93% capacity with 736 Cycles. (According to iStat Pro) I just wanted to know, at which point is it recommended to replace the battery? So far with daily usage I can pull about 3-4 hours which is sufficient for school work so I'm quite pleased with such an old and worn battery. I'm simply unsure if replacing a battery should be commonplace. Replacing it is simple enough, pop off the bottom and swap, I just don't think it's necessary but after 736 cycles, I have no clue. Thanks in advance!