Does charging your computer too long really kill the battery?

Does charging your computer too long really kill the battery?  I have some friends who claim this happened to thair PCs, and my friend's iBook G4 has about ~3 minutes of battery life because of this.  Has Apple fixed this in later models or should I still only charge it until just as long as it takes for it to get filled up?

Mac power management is now, and always has been, very smart. The Mac does not over-charge its battery.
Batteries have a limited lifetime, and they eventually wear out whether they are charged daily or never charged at all. Your friend's G4 battery, if original, has lasted a very long time. It is not dying due to over-charging, it is dying due to old age.
For longest battery life, follow the recommendations in the article shldr2thewheel cited above.

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    Click Accept as Solution for posts that have solved your issue(s)!
    Be sure to click Like! for those who have helped you.
    Install BlackBerry Protect it's a free application designed to help find your lost BlackBerry smartphone, and keep the information on it secure.

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    Message Edited by Bifocals on 08-03-2009 07:15 PM
    Click Accept as Solution for posts that have solved your issue(s)!
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