Hi there. My friend has a Macbook 2.4 ghz (just purchased 2 weeks ago) and it has amazing battery life. He was on it for 5 hours straight and the thing was still running although the battery was getting really really low. With my laptop, I will be grateful if I get 1.5 hours. Granted, I did purchase this "gaming" laptop from ibuypower.com a little more than a year ago, so, of course, I have to take into account that it is in fact a gaming laptop so it's a bit draining on the battery life. However, I compared the Macbook battery life with my friend's Dell XPS m1330 (purchased approx. a month ago) and it only netted 3 hours or so. So... what is it that gives Macbooks such a long battery life? In essence, if you wanted to skip the whole story above, what exactly must one look for when purchasing a laptop battery?