From: abea@dragoon (Art Beattie)
Newsgroups: comp.sys.mac.apps
Subject: Re: Looking for battery PB discharger
Date: 25 Jan 1993 06:54:50 GMT
Organization: Stratus Computer Inc, Marlboro MA
Reply-To: abea@az.stratus.com
NNTP-Posting-Host: dragoon.az.stratus.com

In article <C15yoG.Kzw@dartvax.dartmouth.edu> hades@dartmouth.edu  
writes:
> 
>     I know that this post seems out of date, but everything that I  
have
> posted since the first of the year never made it out of my site. I
> apologize if the discussion in question has already ended.
> 
> 
> >In article <1993Jan4.212139.5593@linus.mitre.org>,  
dsb@mbunix.mitre.org
> >wrote:
> >> 
> >>Has anyone seen a battery discharger/recharger in the adds???   
The
> >>powerbook battery suffers from the NiCad "Memory" effect.  The  
powerbook
> >>only allows the battery to discharge about 50%, then after one or  
two
> >>discarge/charge cycles the battery "forgetts" it is supposed to  
be a
> >>three hour battery and becoms a 1 1/2 hour battery.  I have seen  
a
> >>device advertised in, I believe. MacWeek, that both discharges to  
zero
> >>and recharges the battery, but, I don't remember exactly when or  
where.
> >
> >  The "Memory Effect" is most likely a myth for PB batteries.  But  
Lind
> >Electronic Designs makes a charger/discharger that works slick  
(I've got
> >one).  One of the big mail-order firms should carry it.
> 
>     Yes, it is quite likely a myth, but a full cycle  
discharge/charger
> is probably needed for any of the batteries to reach their full
> capacity. The Powerbooks, even if you let the battery go until it  
puts
> itself to sleep still has about 5-10% of the charge left on the  
battery,
> and this can result in you not getting the full charge out of your
> batteries. This information was found in the latest MacUser which  
does
> an extremely thorough review of Powerbooks, and battery life.
> 
> 
> 
> --
> -Brian V. Hughes 
> "December 1 - What begins as a friendly transitional get-together  
between
>  the Bushes and the Clintons ends in tragedy when Millie ralphs up  
what
>  is later identified as Socks the cat." Dave Barry 1992 Year in  
Review

For those that are interested, MacZone {(800) 248-0800} sells one;

M05354 Full Cycle Battery Charger for $138 plus $3 P&H.

Made by Applied Engineering.

I have no interest in either company, just supplying a source.
I speak for myself only.

-- NewsGrazer, a NeXTstep(tm) news reader, posting --
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