Positive/ Negative lead what gauge?

[macojoe]

My leanth is much greater then yours, I used 4 gauge Tinned wire for marine use. Got from a guy on ebay at a fair price.
Went from transom all the way to cabin in the 23 foot Sea Ox and have 0 issues.

Hope that helps

[smokeonthewater]

yep awg 4 and ur GTG

[Kracker Jack]

Exactly what i was looking for! Thanks SMOKE and MJ.

[THEFERMANATOR]

For that size engine a 6 guage is teh minumum size to go with, but I would go with 4 or bigger myself. I believe in overkill.

[phatdaddy]

ferms right, size matters

[gw204f]

I'm pretty sure I used 2 AWG (don't think it was 2/0...not that I really know the difference) in my old 20' Grady when I moved the batteries under the console. That was with a 150 Merc V6.

That motor cranked so fast it nearly tore the transom off.

[Kracker Jack]

Originally Posted by gw204f

I'm pretty sure I used 2 AWG (don't think it was 2/0...not that I really know the difference) in my old 20' Grady when I moved the batteries under the console. That was with a 150 Merc V6.

That motor cranked so fast it nearly tore the transom off.

Lol!

[Richie Rich]

Originally Posted by gw204f

I'm pretty sure I used 2 AWG (don't think it was 2/0...not that I really know the difference) in my old 20' Grady when I moved the batteries under the console. That was with a 150 Merc V6.

That motor cranked so fast it nearly tore the transom off.

2/0 is big.....from small to big..14awg, 12awg,.....6awg, 4awg, 2awg, 1/0, 2/0 and so on....2 and 4awg is typical for a short run battery cable....but using the load charts is the best way to pick the right size....the distance is always measured round trip, not one way..

[Destroyer]

Originally Posted by gw204f

I'm pretty sure I used 2 AWG (don't think it was 2/0...not that I really know the difference)

Just as an FYI: 2/0 is called "two-ott" (phonetically) from the British pronunciation of zero as "aught". (Pronounced the same as "you aught to be in pictures"). In American Wire gauge, sizes run from the smallest of 40 gauge, which is 3.1 thousandths of an inch, (.0031") diameter, getting larger until they reach 1 gauge which is 289 thousandths (.289") diameter. To designate larger diameters, (since there is no number smaller than 1) the next logical number was 0, or "one aught", .325", then 00, generally designated 2/0, two aught, .365", then 000, threee aught, .410, and 0000, 4/0, four aught.

The designation AWG refers to American Wire Gauge. AWG wire is described by it's Circular Mil area and the number of strands for each size wire depending on wire type used.

AWG #2 has a CM Area of 66,360 while AWG 2/0 has a CM Area of 133,100.