Hello. I have a question with regards to behavior that can either extend or diminish the overall life of a laptop battery. My friend recently purchased a new laptop (sony vaio) at a local Microcenter. The salesman was very insistent upon lecturing my friend as to the proper way to take care of a laptop. One of things he mentioned was to never move the computer while it is on, and to always close the lid before engaging in any sort of extensive moving (due to hard drive? processor? any verification on this?). Another thing that was very insistent upon was to always let the battery deplete from full to near empty on every charging cycle, and only charge the computer when replenishing it back to full. He claimed that this would dramatically increase the overall life of the battery. My specific question relates to the MBP and this battery concept. 1) In general, can anyone verify this / does anyone believe that it would make a significant difference? 2) I remember watching one of those apple videos on the apple website where they were talking about their new battery technology, and they mentioned something about a chip that regulates the power distribution to the battery cells, thus preventing over charging, or something along those lines. Would this negate the advice given by the friendy salesman at Microcenter? Thanks, opinions are appreciated.