Review on Welding Battery Copper Flexible Inverter by Jason Ortiz

I have read other reviews about size 4 not being true to size. However, I have measured that the diameter of 4 gauge wire is 0.25 inches and the standard says that the diameter of 4 gauge wire is 0.2043 inches. I've tried to install a 6 gauge connector plug on a 4 gauge cable without success. The 4 gauge fit into the 4 gauge ring slot with some visible extra clearance. At the moment I have not yet completed the installation of the electrical equipment, so I can only confirm the durability or usability of the product after installation. So far, installation has been seamless and easy to handle.