Alfa Battery Wire Size

[Gilbert Gagne <gilgagne@domain.elided>]

<From: alfacybersite <acs@domain.elided>
<I just received West Marine's catalog. While not critical at the
moment,
I was wondering if the appropriate size is a #1 or a #2 (or?). The #1's
apparently come in 50' rolls only, whereas one can buy a 25' roll in
#2.>

I'd use the largest wire you can afford but for what its worth, here's a
table of voltage drops assuming 20 feet of wire between the battery and
the starting motor. I also assume that the starter draws between 200 and
300 amps while cranking the engine.

Wire Size     ohms/Mft     volts drop
 2                  .201            .8 - 1.2
 1                  .154            .6 -  .9
1/0                .122            .5 -  .75
2/0                .0967          .4 -  .6

Hope this helps.
Gil Gagne
1985 Spider
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