[C320-list] Battery Bank Upgrade - Which starting battery??

[Warren Updike]

Alan, the fuse I installed with my battery upgrade is 150A on the
recommendation of my technical advisor (thanks, Jeff.)  The 80A fuse on the
engine, I mentioned earlier, is in the glow plug circuit (I think.)  In the
Perkins Shop Manual, the 540A under load is the max design spec for the
starter. In normal operation, it wouldn't/shouldn't get anywhere near that.

I recently saw the in-line fuse holder you mention.  First online somewhere
online then ran across it in WM.  Really a simple way to fuse the battery
without separate mount and extra wires.  

And, yes, GenuineDealz.com is a great resource. I had them make all my new
cables at a fraction of the cost of having them done locally; and,
turnaround is fast.  They are very accommodating and quick to reply.  I
highly recommend them.  Since then, I went in with two other owners and
bought a hydraulic crimper for about $60 at HarborFreight.com  It's quite
easy to use and does a great job. It makes properly sizing cable length a
snap.  I also bought a ratcheting crimper at HF for the small connectors.
I'm now self-sufficient for making all onboard connections.

Warren & Pattie Updike
1994 C320 #62 "Warr De Mar"

-----Original Message-----
From: Alan Goodman [mailto:goodmanalanlee at hotmail.com] 
Sent: Sunday, March 20, 2011 3:55 PM
To: c320-list at lists.catalina320.com
Subject: Re: [C320-list] Battery Bank Upgrade - Which starting battery??



Karl and Warren:  Thank you for the advice.  It seemed that 500+ amps was
excessive, maybe I am reading the Perkins shop book incorrectly (Warren, see
Electrical Section VI, the table titled "Starter Motor Specifications" which
I think says "60 amps or less non-loading" and "540 amps or less loading".
I assume un-loading is just cranking the starter and loading is starter and
engine?).  Anyway, you both recommend 300 amps or less, so I'll go with that
recommendation.  Warren, next time you are at your boat, would you please
check the rating of the fuse you have installed.  Karl, I saw the 'post
mounted fuse' in the Blue Sea catalog and thought "way cool !!".  But I
needed to extend the length of my "+" cable going to the new start battery
location, so using the in-line fuse holder as a 'junction' allowed me to
easily add 12 inches length to the cable (I had "Genuine Dealz" make me the
cable with the terminals and shrink tube all fabricated ... excellent place
to by electrical stuff).  About 40 days to go until launch !!!!!    Alan;
Hull #67;  Holland MI