Battery cable size

Post by: **elancoupe** » Tue Apr 14, 2020 5:51 pm

Looking to replace some of the original battery cables - they appear to be 4gauge, is this correct?

Post by: **MarkDa** » Wed Apr 15, 2020 7:40 am

As big as you can get into your battery clamp

Post by: **HCA** » Wed Apr 15, 2020 10:43 am

4 is going to be fine, but 3 if you can get it, and it is flexible enough.

Post by: **elanner** » Wed Apr 15, 2020 11:16 am

Heck, I used 2 GA from this eBay seller. Custom built and very nice:

https://www.ebay.com/itm/2-Gauge-AWG-BL ... 2178593017

He sells red & black and other gauges.

Nick

Post by: **HCA** » Wed Apr 15, 2020 11:37 am

You are certainly not going to suffer any voltage drop..

Post by: **gjz30075** » Wed Apr 15, 2020 1:40 pm

I installed #2 gauge but I bought in bulk and made my own ends. I like Nick's ebay seller's
cables and would go that route instead, if I were to do it again.

Post by: **ericbushby** » Wed Apr 15, 2020 1:48 pm

I went to the local breakers yard and cut a length out of a scrap car including the tag on one end.
When I told the owner what it was for he gave it me free !
Eric in Burnley
1967 S3SE DHC

Post by: **john.p.clegg** » Wed Apr 15, 2020 2:02 pm

Eric
What other car has the battery in the boot?

John ;-)

Post by: **MarkDa** » Wed Apr 15, 2020 2:04 pm

The Ebay cables are very impressive with all the choices available the way I'd go if doing it from scratch - haven't looked in UK but somebody should do it.

I had the same thought

Post by: **Bud English** » Wed Apr 15, 2020 2:47 pm

Thanks for that link Nick. Nice find!

Post by: **ericbushby** » Wed Apr 15, 2020 3:01 pm

Hi John, yes you are right. I only needed a short length for the battery earth so I found what I wanted.
I agree that method would not work if you were replacing the long cable to the engine bay.
Eric in Burnley.

Post by: **MarkDa** » Wed Apr 15, 2020 4:17 pm

Had a quick look at eBay and found a supplier.
Longest length listed is 2500mm - I expect they'll go longer.
No affiliation or experience.

https://www.ebay.co.uk/itm/372808704743

Post by: **Andy8421** » Wed Apr 15, 2020 5:14 pm

john.p.clegg wrote:Eric
What other car has the battery in the boot?

John

The original Mini.

Post by: **Slowtus** » Wed Apr 15, 2020 5:52 pm

john.p.clegg wrote:Eric
What other car has the battery in the boot?

John

Lotus Cortinas, earlier Escorts, BMWs etc...lots

Post by: **elancoupe** » Wed Apr 15, 2020 6:36 pm

Gentlemen, thanks for all the input, I have some kit on the way.

A related question, should the battery ground cable just lay loose in the lower corner of the boot, or should there be some retainers? On an S3.

Battery cable size

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