http://www.tigerdirect.com/applicat...A180-1046&CMP=EMC-TIGEREMAIL&SRCCODE=WEM983AM Now if you read that page, the Acer Laptop. Look at how long the 4-cell Lithium-Ion batter holds for. I know iBooks and PB are like 8-cell??? I think... Found it? If not, its 1.5 hours battery life. That's not even worth it to purchase it. Apple iBook's can get 6 hours, while Powerbooks can get up to 5 hours. - Under certain usage.