Automotive Battery Cable Size Chart

The manufacturers make stock battery cables as small as possible but still get the job done.

Automotive battery cable size chart. Going up a size or 2 is worth it in the long run. Mm cable then go up to 3 3 sq. Choose a higher ambient temperature when conductors are expected to pass through. Now choose the next largest cable size from the table below.

Download excel versions of our cable calculators from our free resources page a bonus voltage drop calculator. Mm which is 12 awg. For example if the above cable size calculator says you need 3 0 sq. 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.

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. I recommend building cables larger than stock. Outside engine compartments the ambient temperature should generally be 20 c.

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. For very long cables for example 15 foot long battery cables to relocate your battery go one size larger.