2 Gauge AWG 400 Ft Black Flexible Pure Copper Welding Cable - Heavy

In this review of the 2 gauge AWG 400 ft black TEMCo welding cable, the bottom line is simple: this is a heavy duty, highly flexible copper cable best for DIYers and small installers who need reliable battery, solar or welding leads without specialty connectors. The reviewer found the cable's standout quality to be its annealed oxygen free copper conductor and rugged EPDM jacket, which combine to deliver flexibility and durability in tight spaces and harsh environments. For those wanting a long, serviceable run that resists oil, heat and abrasion, this cable delivers real value.

Key Features

• 205 Max Amps: Delivers sufficient current for many battery, inverter and smaller welding runs up to about 50 ft without overheating.
• Rated up to 600 volts: Provides safe insulation margin for DC systems like solar arrays, RV battery banks and starter cable applications.
• Flexible EPDM jacket: The easy-flex outer jacket resists cuts, tears, oil, grease and abrasion while remaining pliable for routing in engine bays or conduits.
• Annealed OFC conductor: The 624/30 pure copper stranding makes the cable very flexible and conductive compared with stiffer stranded alternatives.
• Wide temperature range: Rated from -58F to +221F, so it works in cold storage or hot engine environments without becoming brittle or soft.
• Multiuse suitability: Works for welding leads, battery and starter cables, car audio, solar and winch power leads for broad utility.

Who It's For

This cable is aimed at home mechanics, vanlifers, solar hobbyists and small shop owners who need a long length of robust, flexible copper cable for battery banks, inverter feed runs or light welding leads. It is especially useful where routing requires tight bends or frequent handling because the annealed conductor and EPDM jacket keep the wire pliable.

Those who should look elsewhere include professionals needing extremely high continuous ampacity for heavy industrial welding or those requiring factory-terminated harnesses. Also, if you need jacket colors other than black for multiple circuits, you may prefer pre-colored options.

Pros & Cons

Pros

• Very flexible construction makes installation in tight spaces straightforward.
• Pure oxygen free copper conductor improves conductivity and corrosion resistance.
• Durable EPDM jacket stands up to oil, grease, abrasion and higher temperatures.

Cons

• 205 max amps is suitable for many uses but may be undersized for heavy continuous welding tasks.
• Only offered in black jacket in this listing, which can complicate color-coding multiple runs.

Specifications

Gauge	2 AWG
Length	400 ft
Maximum current	205 Max Amps (up to 50 ft)
Voltage rating	Up to 600 volts
Temperature range	-58F to +221F
Conductor	Annealed 30 gauge OFC, stranding 624/30
Outer diameter	0.413 in (10.49 mm)

Our Verdict

The TEMCo 2 gauge 400 ft cable is a practical choice for DIY battery work, solar runs and light welding where flexibility and durability matter. With an annealed OFC conductor and rugged EPDM jacket, it balances conductivity and pliability for most hobbyist and light professional needs, offering strong value for the price while noting its ampacity limits for heavy continuous welding.

Frequently Asked Questions

Can this cable be used for solar array wiring?
Yes, the 600 V rating and oil- and heat-resistant EPDM jacket make it suitable for many DC solar and battery bank runs.

Is the conductor pure copper?
Yes, the cable uses annealed oxygen free copper (OFC) with 624/30 stranding for flexibility and good conductivity.

Will this work for car starter cables?
Yes, it is appropriate for battery and starter cable use in cars, trucks and RVs, though routing and terminal sizing should match the application.