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Date:         Fri, 2 Sep 2005 17:47:45 -0700
Reply-To:     John Bange <jbange@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Bange <jbange@GMAIL.COM>
Subject:      Re: Maybe now is the time to fill the tank of your extra car or
              "parts vanagon"
In-Reply-To:  <4318EB40.4090507@charmfx.com>
Content-Type: text/plain; charset=ISO-8859-1


> 
> I've wondered for years why we still use lead acid batteries to start
> our cars. Capacitance cells would be trouble when discharged but should
> charge and jump the same as a lead acid. ...I'm guessing since they
> don't have internals that will eventually stop holding charge they would
> wreck the battery market. They might fail eventually but they should
> last much longer than a lead acid battery.
> 


With a discharge time of (at most) 30 seconds compared to a lead-acid 
battery's 3 hours, ultracapacitors are no good for long-duration loads like 
running lights and radios, or starting the engine.
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