I'd go with a 15 or 20 foot myself. Think mine is about 10 right now and when your standing on a 12ft ladder welding pipe you have a time fighting the heavy connector. My cable is about due a good refresh anyhow and will go with a longer one. If it's that long it'll keep the lug on the ground. Already hard enough on the ladder when you tote up two grinders, leather rod holder and what ever else you can think of.