From: Mark Gardiner (100550.3170_at_compuserve.com)
Date: Wed Apr 05 2000 - 05:23:02 EDT
I think you will find that the cells are OK, it is the chip circuit that shuts down.
I rejuvenate a lot of laptop batteries and more often, the Li-ion circuits have shut
the charge circuit off. A cynical person would suggest that the manufacturers have built-in
obsolesence!!
You can't get circuitry parts either...
http://website.lineone.net/~battery_rejuvenate/
RE: Re: how to rebuild a 770 Li-Ion battery pack?
Hello.
The easy way to find out what is inside.
Take the battery pack to a government building with x-ray machine near the
entrance. When they scan the thing, take notes. I however, feel that the
battery rebuild places might be a better bet, after all, you are going to
have to find the cells, and they are most likely high output matched cells,
and they might be non-standard in size.
-----Original Message-----
From: Andrew Scott Beals <bandy_at_ricochet.net>
To: thinkpad_at_cs.utk.edu <thinkpad_at_cs.utk.edu>
Date: Monday, April 03, 2000 3:41 PM
Subject: how to rebuild a 770 Li-Ion battery pack?
>Well, some ebay bargains just aren't.. I'm now the proud owner of a
>totally dead 770 battery pack. My machine won't charge it -- tries for
>a few moments and then gives up.
>
>Is it worth $279.00 of my time to tear this thing apart and drop new
>cells into it? If so, could someone please give me a URL to a web site
>that tells me how IBM put this pack together so I can open it up without
>destroying it?
>
>thanks in advance
>
> andy
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