Boat Wiring Store

Custom built for your boat wiring project, the finest quality marine electrical boat battery wiring cables in a wide selection of colors, lengths, and gauges, and end-types, so you can get your boat wiring project done quickly and correctly.

Don't Believe Her. Size Matters.

The correct size of boat wiring is important for both function and safety. If you are reconfiguring your marine electric system, not just replacing old boat battery wiring, please download our Cable Calculator to choose the right marine battery cables for your project.

Please pick a boat battery wiring cable size for your application

Not sure what size you need? Here are tips to figure it out.

If your are replacing your marine electrical boat battery wiring cable with the same size boat wiring, you can often find the original gauge printed on the old cable.

Or, if there is no printing on the old cable, you can simply measure its diameter and compare it to the equivalencies above.

Finally, if you are working on a new boat wiring project or adding length to your old boat battery wiring cable runs, our downloadable "Cable Calculator" should help you figure out the size of your boat wiring.

About Boat Wiring Store Marine Electrical Cables

Built for you at one of the top boat wiring shops in the US, these marine electrical boat battery cables are multi-strand copper - the best choice in boat wiring and various marine electric projects - the same superior quality marine and automotive SAE cable that is used at the nation's top boat builders for their marine battery wiring, windlass and winch wiring, and various other applications.