Re: NTLK Re: Will using AC lenghten NiMH pack's lifespan?

From: Laurent Daudelin (laurent_daudelin@fanniemae.com)
Date: Wed Aug 23 2000 - 10:54:24 CDT


Stainless Steel Rat wrote:
>
> * Marco Mailand <Marco.Mailand@psi.ch> on Wed, 23 Aug 2000
> | They are dying one after the other very badly. They even release some
> | liquid which stucks underneath the sticker foil.
>
> And that, my friends, is what happens when you overcharge batteries.
>
> | I think the same can happen with Apple NiMH-accu packs for the
> | Newton.
>
> Not likely. The charging mechanism in the MP2x00 is smarter than that, and
> they are of a much higher quality than the junk cells you bought.

They mention on the battery site that NiCads need some "exercises", from
time to time, which is a complete discharge (down to 1V by cell).

They also mention that NiMH can also benefit from discharges, albeit a
lot less often (once every 3 months).

So, anyone has any idea about how you can easily discharge an NiMH pack?
Any danger of over-discharging an NiMH?

-Laurent.
=====================================================================
Laurent Daudelin Developer, Adaptive Infrastructure, CIS
Fannie Mae Washington, DC, USA
Phone: 703-833-4266 mailto:Laurent_Daudelin@fanniemae.com
           ********** Usual disclaimers apply **********

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