Farm Equipment - 7040 Battery Cables

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7040 Battery Cables

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=170747
Printed Date: 14 Oct 2025 at 3:50pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 7040 Battery Cables

Posted By: Red Bank
Subject: 7040 Battery Cables
Date Posted: 01 May 2020 at 10:49pm

I am going to install two 1100 cca batteries and make battery cables for them. What size should I go with? I have plenty of 2/0 cable but should I go larger?

Replies:

Posted By: DrAllis
Date Posted: 01 May 2020 at 10:55pm

I always use the original 4-battery cables cut to length for 2 batteries. Two batteries....two big cables.

Posted By: Alvin M
Date Posted: 02 May 2020 at 6:18am

I Make Mine All Out Of 2/0 Fine Wire Copper Welding Cable

Posted By: Boss Man
Date Posted: 02 May 2020 at 6:40am

2/0 should be big enough

Posted By: rw
Date Posted: 02 May 2020 at 6:46am

I use stud top group 31 batteries. I think the eyelet and stud is less trouble than the clamp and post set up that came from the factory. There are charts on the www that will tell cable gauge needed for the length and amps on the circuit.

Posted By: Steve in NJ
Date Posted: 02 May 2020 at 7:38am

2/0 should be fine to carry the current I'm thinkin'.

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