ANCOR Marine Gradeâ¢ Standard Battery Cable Assemblies are manufactured with ANCORâs premium UL1426 tin copper battery cable. The battery cable is fine stranded to produce maximum conductivity and flexibility. In addition, all ANCOR battery cable is flame retarded, UV inhibited, rated to 600V and 105Â°C. The lugs are tin copper to avoid corrosion and last longer. Each end has a piece of ANCORâs adhesive lined 3:1 heatshrink tubing placed over the electrical connection. The heatshrink tubing seals out moisture and other corrosive elements found in the marine environment. This ensures a longer lasting battery connection.