If there is one area where I am disappointed with Apple personally, it has to do with their batteries. I have a Blackbook 2.4GHz and had the battery replaced by Apple after only around 100 cycles on it because it was bulging. They replaced the battery under warranty but after one year and 100 cycles on the Apple replacement, it also started bulging, and I was told it was my problem because it had already been replaced. I need a new battery now and may have to buy one until I can afford a new Mac. It seems to me that there is a problem with Apple's method of charging these batteries.