Source for Battery Interconnect Cables

If you are near a West Marine, they have the cable, electrical grease and connectors. They will let you use their crimpers to assemble the cables.

I don't think you will find AWG 4 cables at an auto parts store because their cables are generally sized SAE, which has a somewhat smaller cross section than AWG for the same gauge. As mentioned there are multiple AWG suppliers to choose from. I've used www.genuinedealz.com a few time with good results.

I like to make up my own cables. Shown here is the ANCOR MARINE GRADE QUALITY BRAND available from ebay sellers in 25-foot spools for around $50... Comes in all the different colors

All of my 4AWG cable connections use the inexpensive 8-ton Hand Crimper tool and appropriate ring terminals...


Everything I use is sized for proper equal lengths and is bolted together...



Cable ends are dressed properly using adhesive heat shrink tubing keeping everything away from the elements..


I also sometimes ID the important cabling with heat shrink markers using a KROY Cable Marker tool...


I use BLUE SEA BATTERY SWITCHES, BUS BARS, FUSE BLOCKS etc components with all my battery projects where ring terminals are used for the connections...




Everything is sealed against the weather and battery vent gases keeping all of the connections in great shape... I do the same with my FRAME GROUNDs as well...

Did it this for years in my working years so it just comes natural to do it now for all of my 12VDC Battery Projects..

You can find many pre-made battery cable sources on ebay...

Roy Ken

As said, most auto parts stores carry a variety of pre-made cables, and some will make custom cables. I've also had custom cables made up by a welding supply shop on occasion, particularly when I want super flex cables.

Auto parts stores and Walmart
Get the red for positive and Black for negative. I use colored tape, yellow for jumpers along with red or black tape to identify where they go.
Get some electrical grease and coat them good.

For that use, auto parts store.