Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!munnari.oz.au!cow!bmp
From: bmp@cow.ecs.oz (Bruce Paterson)
Newsgroups: sci.electronics
Subject: Re: Car Battery Rechargers
Summary: Well I've heard...
Message-ID: <524@cow.ecs.oz>
Date: 16 Oct 90 04:02:15 GMT
References: <1990Oct4.222556.20668@athena.mit.edu> <4179@rsiatl.UUCP> <13019@sdcc6.ucsd.edu>
Organization: Email Electronics, Melbourne, Australia.
Lines: 21

In article <13019@sdcc6.ucsd.edu>, cs161fhn@sdcc10.ucsd.edu (Dennis Lou) writes:
> In article <4179@rsiatl.UUCP> jgd@rsiatl.UUCP (John G. DeArmond) writes:
> >erspert@athena.mit.edu (Ellen R. Spertus) writes:
> >and flip the switch for the other.  Or you could just install 2 batteries.
> 
I've heard of a setup which (on the flick of a switch) uses a lantern 12V
dry battery to run your ignition while either your almost dead car battery
slowly cranks the engine (without pulling the volts to the ignition so low
that the car would never start anyway) or (if things are really bad) you push
the car. The concept of using a dry cell to recharge your car battery enough
is extremely hopeful, as a starter motor can draw up to 100 Amps (so that
gives you about 1/4 turn rotation of the motor before you've exhausted your
amp-hours).


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