In article <wissme-9A63A6.10435812082007@[EMAIL PROTECTED]
>,
Jean Guillaume Pyraksos <wissme@[EMAIL PROTECTED]
> wrote:
> > > Behavior is the following.
> > > I work with the battery connected, at 99%.
> > > When I disconnect and work outside, very soon the
> > > computer shuts down as if the battery was low, even
> > > if it is at 70%. I need to reconnect the battery,
> > > which charges up to 99%
> >
> > b) You don't give any indication of what kind of machine this is or
how
> > old the battery is.
>
> MacBookPro 15", refurbished Apple. 18 months.
If it's been getting any kind of significant use, you're pretty close to
the rated lifespan of that battery. It may legitimately not be able to
hold a decent charge any more.
> > c) Apple's recommendation for notebook users is that once or twice a
> > year you run the battery completely into the ground and then charge it
> > to full, specifically to recalibrate the thing that's telling you how
> > much longer it'll power your machine.
>
> The problem is that if i try this, the battery soon tells the computer
> (even at 70%) thta it is empty and the machine shuts down.
So you have run it into the ground, and then you've presumably charged
it back up again. This reinforces the notion that the battery is simply
"used up."
G
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