Ben Smith (QM Systems) wrote:
> I had a similar problem with a 2300, the type 3 battery would not
> charge, but I could force it to charge with a bench power supply, it
> turned out to be a faulty cell that would develop an internal short
> when it ran flat, the DUO did not supply sufficient power to clear the
> short, but a bench psu did (using 20V@1A) and the battery would be
> fine unless you let it get too flat (the DUO would charge it ok
> provided you did not let it get more than about 75% flat)
> I think it is possible that the seller has done something similar in
> order to (falsely) pass off a dud battery as good. try for a refund
> equal to the price of a new battery if this is the case.
If this is the case, would the seller admit it? I should say not!
I told him about these problems, and he sent me a pram battery and some
bogus software to make up for my prob with the ac adapter that I believe I
mentioned I replaced (with a 45w). The weird thing is, the battery came in
as fully charged, but I don't think it was charging at all when I plugged in
the 36w adapter that came with the unit (I didn't take any notice of the
charge since I was preoccupied with installing things).
My theory is the bad ac adapter that caused flickering shorted out something
in the battery. Also, when I tried to run the PB on battery, it resulted in
GLOD, but I got it going again by resetting Power manager.
I would like to know more about this bench power supply. I'm not exactly a
Mac novice, but this stuff is very arcane to me.
Ilene
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