TP701C Battery Advice Sought

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From: Robert Sturrock (rns_at_its.unimelb.edu.au)
Date: Thu Apr 29 1999 - 18:45:15 EDT


On Thu, Apr 29, 1999 at 11:04:14AM -0400, Bill Morrow wrote:

[...]

> IF the battery is old (over a year or so), then it could be kaput..!
> otherwise, the only other thing is could be is dirty contacts or the like...
>
> you can try to "cycle" it.. total discharge, then re-charge.. but i don't think
> this will work with Li batteries like it does with NiCad...

[...]

On the subject of batteries, I have a ThinkPad-701C with a single
NiCad battery. The battery is new (or so I'm led to believe). However,
I don't really ever use the battery, since I mostly just plug the unit
into the mains at home. I had been leaving the battery plugged into the
system anyway, but someone told me this is a bad idea. I was also told
that if I do use the battery, I should run it down to 0% then charge it
back up again, rather than just running it down to say 70%?

I want to preserve the battery for those rare occasions when I do need
to use it. What is the best strategy for doing this? I have taken the
battery out of the unit, but should I run it right down to 0% first,
or is it OK to leave it charged up while in storage?

Thanks.

/r.


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