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Open Roads Forum  >  Tech Issues

 > 4 awg Battery cable vs. 4 awg welding cable

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renoman69

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Posted: 03/26/11 01:54pm Link  |  Print  |  Notify Moderator

Can some one tell me what the main difference between the two is?


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Posted: 03/26/11 02:01pm Link  |  Print  |  Notify Moderator

Weldng is fine strand and very flexible. The other is very stiff. Solar? Bends and tight spaces? Get the welding cable.


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garym114

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Posted: 03/26/11 02:02pm Link  |  Print  |  Notify Moderator

Welding cable had smaller strands of copper to make easier to use and bend.


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renoman69

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Posted: 03/26/11 02:10pm Link  |  Print  |  Notify Moderator

I can get 4awg battery cable for 2.35/ft and 4awg welding cable for 1.40/ft. So do you guys think the welding cable is better? I am making up a bunch of cables to hook up charger, charge controller,inverter and such.

KendallP

Southern Oregon

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Posted: 03/26/11 02:17pm Link  |  Print  |  Notify Moderator

renoman69 wrote:

I can get 4awg battery cable for 2.35/ft and 4awg welding cable for 1.40/ft. So do you guys think the welding cable is better? I am making up a bunch of cables to hook up charger, charge controller,inverter and such.

I prefer welding cable, and at that price, I'd be all over it!


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Wayne Dohnal

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Posted: 03/26/11 02:24pm Link  |  Print  |  Notify Moderator

Are you positive that the battery cable is awg, and not sae? All the products I've seen labeled as battery cables have been sae, which is smaller than the equivalent awg gauge.

Another forum member and I once compared awg and welding cable, counting and measuring the strands. What we found was that awg wire was a consistent percentage smaller than the awg spec (in the 10% ballpark), while the welding cable was right on. I'm speculating that the awg spec has a manufacturing tolerance and all the wire is built on the lower edge of the range, but I don't have access to the specs to check that out.


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Chris Bryant

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Posted: 03/26/11 02:31pm Link  |  Print  |  Notify Moderator

From my supplier, welding cable is more expensive, but I always use it anyway. Definitely go with the welding cable.


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pianotuna

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Posted: 03/26/11 03:01pm Link  |  Print  |  Notify Moderator

Hi,

Another vote for welding cable.


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radiow6lar

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Posted: 03/26/11 03:11pm Link  |  Print  |  Notify Moderator

Welding cable all around! The only way....


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smkettner

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Posted: 03/26/11 03:23pm Link  |  Print  |  Notify Moderator

Battery cable is usually SAE not AWG and so it will be a bit smaller.
My preference is marine tinned AWG fine stranded wire.

Welding cable could well be more flexible and might be better for some cabling that needs to flex while in use.


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