Battery cable size?
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=164638
Printed Date: 03 Jun 2025 at 3:50pm
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Topic: Battery cable size?
Posted By: caRon
Subject: Battery cable size?
Date Posted: 27 Sep 2019 at 11:23am
I have some 2/0 battery cables. Are they too big for a 12 Volt CA tractor, or is bigger better?
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CA Tractor
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Replies:
Posted By: Rhoadesy_65
Date Posted: 27 Sep 2019 at 11:57am
Bigger wires have less resistance, just like a bigger pipe lets more water flow. Less resistance means it will carry a higher amperage, so bigger the better.
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Farmin' with 1981 7010 PD, Great Grandpas 1947 Farmall H, JD 7000 planter, JD model B drill, NH 316 Baler, NH 1411 Discbine ,JD 100 8 Shank Chisel. Darke County OH
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Posted By: Joe(TX)
Date Posted: 27 Sep 2019 at 12:26pm
I use no. 2 cables on my diesels. 2/0 is pretty big but will work.
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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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Posted By: Dusty MI
Date Posted: 27 Sep 2019 at 1:06pm
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Think of electricity as water. Pressure/Voltage Flow/Amps Pipe size/Wire size
Dusty
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917 H, '48 G, '65 D-10 series III "Allis Express"
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Posted By: Bill_MN
Date Posted: 27 Sep 2019 at 7:51pm
I have 2/0 cables on a 12 volt WD, bigger cables are also safer as they will not heat up as much with higher amps. Only minus is they are harder to bend and shape.
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1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow
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Posted By: Steve in NJ
Date Posted: 28 Sep 2019 at 7:55am
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2/0 cables are a bit overkill, but will work just fine. 1 gauge would be the norm for 6V but is a nice step-up for 12V systems. I build my cables in the 1 gauge for both systems. The 2/0 would be real good for the 6V for the amperage factor... Steve@B&B
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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Posted By: caRon
Date Posted: 28 Sep 2019 at 8:34am
thanks
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CA Tractor
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