🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.electronics
Article #1735

Re: How to dispose of NiCads?

#1735
From: Bob Myers
Date: Tue, 04 Aug 1992 18:28
23 lines
1600 bytes
> This is directed at how to properly treat NiCads to avoid having to
> dispose early.  I'm new with RC.  I know enough about NiCads to know
> they should not be "light" cycled which will result in a burned in
> light cycle memory.
> 

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.


Bob Myers  KC0EW   Hewlett-Packard Co.      |Opinions expressed here are not
                   User Interface Tech. Div.|those of my employer or any other
myers@fc.hp.com    Fort Collins, Colorado   |sentient life-form on this planet.
Technical Details
Message-ID: <7480103@hpfcso.FC.HP.COM>
Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!sdd.hp.com!hpscdc!hplextra!hpfcso!myers
References: <1992Jul27.161240.4905@nynexst.com>

Show Full Headers
Complete Article Headers
From: myers@hpfcso.FC.HP.COM (Bob Myers)
Date: Tue, 4 Aug 1992 18:28:07 GMT
Subject: Re: How to dispose of NiCads?
Message-ID: <7480103@hpfcso.FC.HP.COM>
Organization: Hewlett-Packard, Fort Collins, CO, USA
Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!sdd.hp.com!hpscdc!hplextra!hpfcso!myers
Newsgroups: sci.electronics
References: <1992Jul27.161240.4905@nynexst.com>
Lines: 23