In article <280820032117043216%thomasareeddont.spam.me>,
Thomas Reed <thomasareeddont.spam.me> wrote:
Possibly not: a 1.5 year old 15" PowerBook probably has a>In article <susanhal-2808031820000001bigears.psychology.dal.ca>, Susan
>Hall <susanhalis.dal.ca> wrote:
>>>> I rarely use it on battery. I'll go for days at a time just carting it
>> asleep between work and home and plugging it in as soon as I arrive. So
>> it's spending a lot of time in the amber state as it slowly falls from
>> 100% to 83% during the commute intervals.
>You probably need to recondition your battery.
Lithium Ion battery (you can check it, Susan, it'll be on the
label if you take the battery out of the PowerBook). These
do not have the 'memory' characteristics associated with the
Nickel-Cadmium system used in earlier rechargable batteries.
However, if you keep them at full charge for a long time they
do gradually lose their capacity. So what I'd recommend to
Susan is that she try letting the battery discharge once a
week or so: take it home or to work as normal but don't plug
it in until it gives the low-power warning. If they battery
can last a whole office-time or home-time without recharging,
so much the better.
Note that LI batteries aren't really expected to last longer
than three or four years anyway: they have both a limit on
lifetime and a limit on the number of charge/discharge
cycles they can go through (about 3,000). Your pattern of
use involves two charge/discharge cycles a day which is what's
causing your problem.