[ltp] t22 battery replacement dead?

David Smith linux-thinkpad@linux-thinkpad.org
Tue, 23 Aug 2005 23:03:27 -0500 (CDT)


Great thanks for the info.
At the moment I've done something else, which I suppose will be an
equivalent, we'll find out.  I actually covered the three middle
connectors of the battery after seeing that done by someone on the list,
and am running the battery until the machine shuts off. The machine has no
idea what the voltage is on the battery.

I'll go check for those disks now.

thanks!
-- dave

David A. Desrosiers said:
>
>> I have since spent money to return to them the battery and now the
>> second one is apparently doing the same thing. 5 Cycles and the
>> capacity has gone from 43 WH to 34 Wh.  I am running the latest
>> bios.
>>
>> Anyone else with this issue?  I also noticed out of the box their
>> batteries drained to about 50%, then to 4%, would stay at 4% for
>> even an hour at times or more then go to 2% for less than a minute
>> and the machine would then turn off.
>
>  	I've run into this exact same problem with two identical T23
> laptops (2647-9LU) with 4 different replacement batteries (all shipped
> direct from IBM).
>
>  	The trick I found, which was quite odd, was to get the "PC
> Doctor for DOS" recovery/repair disc set from IBM (its available for
> download on their site), run the "Battery Rundown" function on your
> laptop while only on battery. You'll notice that it will run about 15
> minutes after the big "BEEBOOOBEEEBOOO" klaxon warning, and then will
> just shut down. Let it stay shut down after that, plug it into AC,
> don't boot it up, and let it charge for about 7-8 hours.
>
>  	After you see both green lights on the lid (after a full
> charge), boot it back up. You'll now have a fresh battery to work
> from.
>
>  	I wrote about this back in July. Search this list on July 14th
> for a post from me titled:
>
>  	Subject: Re: [ltp] Re: poll: how is your battery?
>  	(9-cell-battery lost about 25% capacity in 10 months)
>
>
>
> David A. Desrosiers
> desrod@gnu-designs.com
> http://gnu-designs.com
>
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