[ltp] Battery dying
James Mckenzie
linux-thinkpad@www.bm-soft.com
Thu, 01 Nov 2001 22:11:45 -0700
Thomas:
What type of battery does the 770Z use? If it is a NiMH battery, you may have to
'deep cycle' it a few times to get all time back. This is NOT recommended for LiON
batteries as this may shorten the lifetime further of the battery.
James Mckenzie
Thomas Porter wrote:
> On Thu, Nov 01, 2001 at 10:27:32PM -0500, Thomas Hood thoughtfully expounded:
> > PMO. I just bought a new battery in July, and already it's dying
> > just as my last battery did. When charging, after it charges to
> > about 20% it jumps up to "100%", and when I run on battery it
> > only runs down to about 85% before dropping suddenly to 5%.
> >
> > Is this a firmware bug, or what?
>
> Thomas,
>
> I have had similar problems. Can you check something for me: What is the time
> remaining when your battery charge level drops from 85% to 5%?
>
> I have found on mine that regardless of my usage pattern, and thus the
> percentage shown, that when the time remaining drops under one hour, from 1:00
> to 0:55, is when the battery goes critical.
>
> I too suspect some kind of system problem: charging circuit, firmware in
> battery, APM BIOS support, etc. and am trying to confirm this.
>
> --
> Tom Porter txporter@mindspring.com
> ------------------------------------------------------------------------
> "On two occasions I have been asked [by members of Parliament],
> 'Pray, Mr. Babbage, if you put into the machine wrong figures, will
> the right answers come out?' I am not able rightly to apprehend the
> kind of confusion of ideas that could provoke such a question."
>
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