recalibrating ibook battery

[e.mkeene]

> The battery needs to be re-calibrated from time to time to keep the
> onscreen battery time and percent display accurate. You should
> perform this procedure when you first use your computer and then
> every few months thereafter."
>
> The procedure for re-calibrating is to first fully charge your
> PowerBook, then disconnect it from the external power source and run
> it until there is no power left (the machine goes to sleep). Then
> connect the adapter and full recharge.
>
Does anybody know if there is a problem if the battery is re-calibrated 
too often? The reason I ask is because my normal work habit is to keep 
the ibook plugged in to ac with the battery installed and sleeping when 
I am not using it. Then if it is convenient, I leave it in that same 
state while I am working. When ac is not convenient, I unplug and run 
it on battery. Most of the time I run it until I get the reserve dialog 
and replug. Sometimes, I run on battery for awhile and when I get back 
near the ac, plug it back in even if it has not run down to reserve.

Any comments of how this does or does not affect battery life? As far 
as the battery indicator goes, it seems to be quite consistent and the 
amount of battery time I get on a full charge also seems to be 
consistent. I have not actually timed it and tracked it because some of 
the battery time may be spent sleeping intermittently. I run it with 
the monitor on max brightness and with airport always on and get about 
4hours consistently of steady use on battery. I do have the energy 
settings set to dim screen with 2 min of inactivity and to sleep the 
system with 8 minutes of inactivity even on ac. I don't use the 
speakers alot