yes, 4 gauge is modern 12V weight, you need to go heavier, best if you use 0 or 00, welding cable works to make your own if no shops around you have good heavy cables .... also make sure all your connections are clean and tight
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
