Article View: sci.electronics
Article #2330Re: How to dispose of NiCads?
From: rice
Date: Sat, 08 Aug 1992 20:51
Date: Sat, 08 Aug 1992 20:51
31 lines
2278 bytes
2278 bytes
In article <7480103@hpfcso.FC.HP.COM>, myers@hpfcso.FC.HP.COM (Bob Myers) writes:
> Then you know too little about NiCds. Nicad "memory" is a myth, one which
> has been somewhat encouraged to flourish by the fact that these cells will
> show a distinct voltage depression following a severe *overcharge*, regardless
> of the depth of the previous discharge. (Actually, there has been a
> "memory" effect demonstrated, but it can only occur under VERY special
> conditions, and to date I am aware of no true "memory" problem showing
> up in a comsumer application. The one "true" memory incident involved
> computer-controlled charging on board a satellite, which resulted in a
> very unique and repeatable charge/discharge cycle.)
>
> Intentionally discharging nicads to avoid "memory" is a waste of both time
> and cells.
>
Then, what IS the definitive document on 'care and feeding of nicads' ? Like
alot of others, I have nicad powered equipment that I use infrequently.
(Two-way radios used in emergencies, a Notebook P.C that I use in bursts).
What's the best way to keep the batteries charged in such a way that they'll
be fully usable after not being used for a few months ?
Or in the case of the Notebook, if I use it most of the time from the A.C.
adaptor, what should I do to ensure that the battery will support the
machine for a reasonable length of time, when I need it to ?
--
John Rice K9IJ | "Did I say that ?" I must have, but It was
| MY opinion only, no one else's...Especially
| Not my Employer's....
rice@ttd.teradyne.com | Purveyor of Miracles,Magic and Sleight-of-hand
Technical Details
Message-ID:
<1992Aug8.160142.1@ttd.teradyne.com>Path:
arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!uwm.edu!rpi!newsserver.pixel.kodak.com!laidbak!tellab5!balr!ttd.teradyne.com!newsReferences:
<1992Jul27.161240.4905@nynexst.com> <7480103@hpfcso.FC.HP.COM>Show Full Headers
Complete Article Headers
Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!uwm.edu!rpi!newsserver.pixel.kodak.com!laidbak!tellab5!balr!ttd.teradyne.com!news From: rice@ttd.teradyne.com Subject: Re: How to dispose of NiCads? Message-ID: <1992Aug8.160142.1@ttd.teradyne.com> Lines: 31 Sender: news@ttd.teradyne.com (News Feed Account) Nntp-Posting-Host: mrdata.ttd.teradyne.com Organization: Teradyne Inc., Telecommunications Division References: <1992Jul27.161240.4905@nynexst.com> <7480103@hpfcso.FC.HP.COM> Date: Sat, 08 Aug 92 20:51:30 GMT Lines: 32