Miata Mailing List: November 1994, Message #144
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   From: arch@server.uwindsor.ca (Archie Glasgow)
Subject: Re: Miata Batteries
   Date: Fri, 4 Nov 1994 18:12:36 -0500

> 
> >Has anyone heard any first hand reports on the Westco battery >advertised in
> the latest MCA rag? I called the company and for $84 >(less 5% for MCA members)
> they give you a 12 volt, 33 Amp gel cell >that is "a bit smaller" than the
> factory cell. Dimensions are 7H x 7.7L x >5.12W. It has a CCA capacity of 475.
> Anyone know the Cold Cranking >Capacity of the factory battery?
> 
> Gary,
> No, but I have had a first-hand report on the Interstate model # 51-50 gel cell
> battery.  It's $58.95 and made by Johnson Controls, the same people that make
> Sears Diehard and Motorcraft batteries.  It's 9 3/8"L x 5 1/8"W x 8 7/8"H (8"
> w/o post).  Our member, who bought it, said it fits in the tray even though
> it's bigger, the existing brackets work and the cover fits over it.  She's had
> it for several months now and is quite happy.  It is rated at 50 amp-hours (410
> cold amps).  The factory Panasonic battery is rated at 32 amp hours.  If you
> can't find out who distributes this battery on the East Coast, you might try
> calling Tom Allen with Interstate at 206/743-7677.
> Bill Allen
> 
> 

	I would like to know whether these batteries have the vent ports 
that fit the tubing on the stock batteries. I believe even though the 
batteries are gel cells there is still a concern about explosive gases 
given off during periods of heavy use.


-- 
Archie Glasgow Elect. Eng. Techn.
University of Windsor Bio. Sci.
Windsor, Ontario - Canada
arch@server.uwindsor.ca