Use a battery cable that was designed specifically for the marine environment

Ancor Tinned Copper Battery Cable 3/0 AWG (81mm²) - Black - Sold by the Foot is a premium marine-grade electrical cable designed for ultra-high-current power systems, engine connections, and heavy-duty battery banks. This wire is explicitly built to withstand harsh environments and is available to purchase cut-to-length by the foot.

Specifications & Features

• Conductor Construction: Features high-purity, ultra-flexible Type 3 fine-stranded tinned copper. Tinning shields individual copper strands from oxidation, corrosion, and electrolysis caused by saltwater and humidity.
• Extreme Flexibility: Designed to absorb heavy vibration and flexing without suffering material fatigue or cracking, making it ideal for routing through tight engine compartments.
• Premium Vinyl Insulation: Rated for up to 600 Volts. It maintains complete flexibility in freezing conditions down to -40°C (-40°F) and withstands dry heat up to 105°C (221°F).
• Environmental Resistance: The outer jacket chemically resists saltwater, battery acid, engine oil, gasoline, UV exposure, and intense physical abrasion.

***Safety Certifications: Exceeds UL 1426, ABYC, and US Coast Guard Charter Boat (CFR Title 46) safety and electrical standards.

***Actual colors may vary. We strive for accurate product photos, but colors may appear slightly different due to screen settings, individual perception, and lighting during photography. We cannot guarantee that the color shown exactly matches the product’s true color.