lithium ion and battery calibration

view story

http://crunchbang.org – hi guys  I'm a MacBook Pro user. Recently, I've been thinking about the battery of the MacBook and pondering upon it. I came to me to the moment of epiphany about 'battery calibration'. Are all the lithium batteries can be calibrated, or it is limited to MacBook's battery only? If it is only limited for MacBook's, then why is it so? Why don't the others copycat this idea of battery calibration?I'm waiting for your excellent responses guys  (HowTos)