WindyNation Power-Flex Battery & Welding Pure Copper Cable Simply select your desired cable size (available sizes are 8 gauge thru 4/0 gauge) and cable length & insulation color. Power-Flex Welding and Battery Cable Description:WindyNation's Power-Flex Cable is a highly flexible industrial grade electrical cable. Power-Flex Cable is excellent for welding applications, battery cable applications, battery bank wiring (wind and solar), RV & car wiring applications, and any other application where a highly flexible pure copper conductor is required. See Technical Specifications Chart below.WindyNation's PowerFlex cable is 100% PURE copper cable. It is NOT cheap copper clad aluminum (CCA) cable. WindyNation Power-Flex Cable Technical Specifications Conductor Material: Fully annealed bare stranded copper wireInsulation Material: EPDM (with polymer tape separator)Maximum Voltage: 600 VDCOperating Temperature: -50°C to 105°CStandards: IEC60245, RoHS