On 07/05/02 09:15, "Prabhakar Ragde" <plragde_at_plg2.math.uwaterloo.ca> wrote:
> Mycroft wrote:
>
>> NiCD cells generally don't recondition successfully after 5 years, whether
>> you use them or not. If you use them regularly, they simply exhaust their
>> normal cycle life. If you don't use them at all like your spare pack, or
>> very little, then they tend to grow metal crystals which eventually puncture
>> the seperator, and the cell can no longer hold a charge for very long due to
>> self-discharge through leakage current through the seperator.
>
> [much appreciated but somewhat intimidating detail snipped]
>
> But isn't the battery pack for the 2000/2100 NiMH? Can old Newton
> battery packs, never used, be used now or not? And if so, how to get
> them to hold a charge? --PR
Apparently, you can, but even if they're new, they've been sitting on a
shelf and I read a message no later than yesterday (hmmm, maybe it was on
the G-Books list) about the chemical process that occurs even if the battery
is not used, which will reduce its life expectancy over the course of a
couple of years. I don't know, I'm merely reporting what I've read...
-Laurent.
-- ===================================================================== Laurent Daudelin Developer, Multifamily, ESO, Fannie Mae mailto:Laurent_Daudelin_at_fanniemae.com Washington, DC, USA ********************** Usual disclaimers apply **********************-- Read the List FAQ/Etiquette: http://www.newtontalk.net/faq.html Read the Newton FAQ: http://www.guns-media.com/mirrors/newton/faq/ This is the NewtonTalk mailing list - http://www.newtontalk.net
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