Tinned Copper Battery Cable, 3/0 AWG (81mm²) - Black - Sold By The FootAncor Marine Grade wire products are the longest lasting and most rugged available, exceeding UL 1426, ABYC, and US Coast Guard Charter boat (CFR Title 46) standards. They are constructed with premium vinyl insulation that is rated at 600 volts, 105 deg C dry and 75 deg C wet, stays flexible even in extreme cold (-40 deg F/C), and resists salt water, battery acid, oil, gasoline, heat, abrasion, and ultra-violet radiation. The highest quality ultra flexible (Type 3) tinned copper stranding provides maximum protection against corrosion and electrolysis while resisting fatigue due to vibration and flexing.Features:Manufactured from tinned copper stranding for maximum protection against corrosion and electrolysisUltra flexible (Type 3) stranding resists fatigue due to vibration and flexingStays flexible even in extreme cold (-40 deg C) and resists salt water, battery acid, oil, gasoline, and ultra-violet radiation