Automotive Battery Cable Size Chart

Now choose the next largest cable size from the table below.

Automotive battery cable size chart.

Going up a size or 2 is worth it in the long run. Most of the cost is the ends and labor. Choose a higher ambient temperature when conductors are expected to pass through. Battery cable is used to power your electrical system and is sized according to the american wire gauge or awg for short specification for electrically conductive cables.

So you now have a cross sectional area for your cable. Mm which is 12 awg. Mm cable then go up to 3 3 sq. I recommend building cables larger than stock.

For example if the above cable size calculator says you need 3 0 sq. Car battery size chart all all how tos car maintenance cars 101 car truck mods cleaning detailing car buying car technology lawn garden othermotive winterizing your toys classic cars off roading racing community history of cars road trips sponsorships. Our battery cable is american made and comes in gauge awg sizes of 6 4 2 1 1 0 2 0 3 0 and 4 0 with 6 gauge being the smallest and 4 0 gauge being the largest. For very long cables for example 15 foot long battery cables to relocate your battery go one size larger.

Choosing the correct gauge automotive wire depends on the acceptable voltage drop length of the feeder branch circuit conductor load amperage and the ambient temperature of the compartment where the primary wire will pass through. Download excel versions of our cable calculators from our free resources page a bonus voltage drop calculator.