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Re: battery of ibook2



Hello,

K. Reid Wightman (krwightm@ecs.syr.edu) schrieb:

> On Tue, 2002-11-26 at 18:42, J. Volkmann wrote:
> 
> > Argh. This is exactly what I didn't hope to hear. As I need this laptop
> > for my work, there is no way I can send it in as a whole. Do you know if
> > it is enough to send in the battery? But even this would be cruel as I
> > have no second one :-/
> 
> No worries.  I hadn't meant that you have to send the whole machine
> back...They will send a battery to your mailbox, then you mail the old
> one back (at least that's how they do it in the US...).
> 
Did you go to apple directly or to your shop? I just mailed my shop,
hopefully they'll do it the same way.

> > Hmm, how long is the warranty? If it isn't anymore, I will razz them
> > until they do something, as this is really awkward for them.
> 
> One year I believe.  If you have a 700mhz model, it's a pretty safe bet
> that you are under warranty :).
> 
Yes I am, I just looked up, the order mail is from june 02.

What I found out until now:
1. It seems only ibook2 dualUSB 700 are affected, anyone has another
than that and is experiencing the same problem?
2. Kernel, OS etc doesn't matter.

In the apple.de forums there is a quite big discussion about it, this is
what I found there:
1. If you are at warranty apple replaces your battery.
2. It happens again and again (there was wan already having his third
battery... this is frightening me).
3. If you aren't at warranty anymore, they offer you to "fix it" for 340
EUR (!). Not sure what they want to do though?
4. Apple refuses to comment this :-/
5. This is what someone posted there and what I thought is quite
interesting:
---snip---
If you have had your iBook for a while you may merely be running into
the end of your battery's life. All Li-ion batteries have around 300-500
charge cycles. Even plugging in when your battery is only down 1% will
use up a cycle. A bummer isn't it! I wish someone had explained this to
me before I wore out my first battery.

Apple re-designed the PMU on later units to only go into a charge cycle
if the power level drops below 98% (I think I am remembering the number
correctly) thereby extending the lifespan of the battery. 
---snip---
[Thanks Shawm M.]

Summa summarum this really kills my picture of apple as products of
extremely high quality :-(

mfG Johannes

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