[PurpleRabbit73]

I read in a thread somewhere that there are some updates that allow you to improve the overall performance of your battery. Do these such updates just change your computer's settings, prolonging the battery life, or do they actually do something to the battery itself?

[skyman]

You know you search the MacNN forums about this subject?

There is already a thread about this.

http://forums.macnn.com/69/mac-notebooks/286993/battery-lame/

[PurpleRabbit73]

Yes, but nobody really explains how it works....

[JKT]

If you mean the PowerBook G4 battery updater, it changes the firmware of the battery to improve its reliability. It doesn't improve its performance. It also only works on a certain subset of batteries issued between certain dates/serial numbers.