Prolonging Battery Life

[Bob Gir.]

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Dual-USB, 500MHz G3 12" Ibook
640MB of RAM
10Gb IDE Hard Drive
OS 10.3.2
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AirPort Base Station M5757 (Graphite)
AirPort Card 8.2011
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Linksys BEFSR41 Router, v.3; firmware version 1.04.
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    Is leaving an iBook plugged in all the time the best strategy for
battery longevity???

    I.e., by longevity I mean to lengthen the time between battery purchases
and to lengthen the time you are able to run on battery power when necessary
to do so.

     90% of the time I can use my iBook plugged in, so, should I do so?

    Thanks,
    bob