Big 3 Upgrade hardware ???
Senior Member
Joined: Apr 2007
Posts: 4,494
Likes: 0
From: Slidell, LA
Honestly, I use the same size for looks and continuity. Normally, you can get use the excess. And why not, its a bit less resistance and slightly less of a voltage drop.
4ga at 6" can handle 300A.
4ga at 6" can handle 300A.