I've decided to make my own battery cables. What I'm wondering is what size lug I should use if I make cables with accessory wires like factory? For instance, I'm going to use 2/0 cables with #4 accessory wires. Would I use 2/0 lugs still?

 

Just use welding cable.

 

I'm not asking about the cable. I need to know what gauge lug to use.

 

Bigcountry,
You have to use the 2/0 lug with an opening large enough for your connection.
Chuck

 

Oh, I see now. I thought you were wanting to parallel several smaller wires to equal a 2/0 cable... and I thought that was a pretty stupid idea. LOL!

I think what you're really wanting to do is replicate the molded cable ends that have the extra wire lead. Unfortunately I don't know how to do that with service parts at home other than crimping and soldering everything together in a single terminal barrel. Not sure if that passes a test of good practice.

 

Right lol, I've seen store bought ones like that with the molded on ends. But not sure how the back yard mechanic could do it.

 

I built my own, I believe I used 2/0 terminals but I found terminals that have dual inputs for the positives and it allowed me to fit all my extra wires. if not just get a size larger and cram the wires in, hammer closed and solder fill it then shrink wrap and your good to go!