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From: wolit@rabbit.UUCP (Jan Wolitzky)
Newsgroups: net.analog
Subject: Re: Rechargeable Batteries
Message-ID: <3292@rabbit.UUCP>
Date: Thu, 15-Nov-84 08:40:55 EST
Article-I.D.: rabbit.3292
Posted: Thu Nov 15 08:40:55 1984
Date-Received: Fri, 16-Nov-84 05:07:58 EST
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 12

Varta Batteries, Inc., Elmsford, NY 10523, makes 9.6 volt NiCad
batteries and chargers for them.  I tried them after discovering that
the standard "9 volt" NiCads wouldn`t work for more than a few hours
in my smoke alarm before setting off the "low battery" warning.
Carbon-zinc cells each have a potential of 1.5 volts, so six of them
go into each 9 volt battery.  But NiCads only have a 1.2 volt
potential, so six only make 7.2.  Varta puts eight NiCad cells in
their "9 volt" battery.  It's been a few years, but I remember paying
about $12 for the battery and charger together.  (Actually, Varta's
plant is in West Germany; the Elmsford address is their U.S. office.)
-- 
Jan Wolitzky, AT&T Bell Laboratories, Murray Hill, NJ; (201) 582-2998