TEMCo 4 Gauge 85 Ft Red Flexible Pure Copper Welding Cable - Heavy

In this review the TEMCo 4 gauge 85 ft welding cable is evaluated for installers and hobbyists who need a long, flexible heavy duty copper lead. The bottom line: it is best for applications that demand flexibility, durability and genuine oxygen free copper conductors, and its single biggest selling point is the combination of high strand count OFC and a rugged EPDM jacket that stays pliable across a wide temperature range. For anyone wiring batteries, solar arrays or winch leads who wants a workhorse cable, this cable delivers.

Key Features

• 150 Max Amps: Provides adequate continuous current capacity for many battery, starter and light welding runs up to moderate lengths.
• Rated up to 600 volts: Suitable for a variety of DC systems including solar, RV and inverter applications where higher insulation rating is needed.
• Wide temperature range: Rated from -58F to +221F, it remains flexible and reliable in extreme cold or heat environments.
• Annealed 30 gauge OFC conductor: The high strand count gives excellent flexibility and conductivity compared with lower strand cables.
• Rugged EPDM jacket: Resists cuts, tears, abrasion, water, oil, grease and flame so it holds up on vehicles and workshop floors.
• Nominal OD 0.331 in: A compact profile for a 4 gauge cable that is easier to route in tight runs and conduit.

Who It's For

This cable is aimed at DIY installers, RV and van lifers, solar hobbyists and automotive mechanics who need a long, flexible run of genuine copper for battery banks, starter cables, winch leads or inverter feeds. The flexibility and OFC construction make it especially useful where repeated movement or tight bends are expected.

Those who need the absolute highest ampacity for heavy welding at long distances, or who require factory crimped lugs for a plug-and-play install, may prefer a thicker or purpose-specific welding lead or a pre-terminated kit. Still, for general-purpose battery and DC power runs this cable is a practical middle ground.

Pros & Cons

Pros

• High strand count OFC conductor delivers real copper feel, flexibility and good conductivity for battery work.
• EPDM jacket stands up to oil, grease, abrasion and flame for long life in harsh conditions.
• Wide temperature rating keeps the cable pliable in cold climates and stable in heat.
• Nominal 0.331 in diameter balances conductance with manageable bulk for routing.

Cons

• 150 max amps is suitable for many tasks but not for heavy continuous welding at long distances.
• Sold as bare cable, so buyers must terminate or crimp lugs themselves for many installs.

Specifications

Gauge	4 AWG
Length	85 ft
Conductor	Annealed 30 gauge OFC, 364/30 strands
Nominal OD	0.331 in (8.41 mm)
Voltage Rating	Up to 600 volts
Temperature Range	-58F to +221F (-50C to +105C)
Jacket	Rugged EPDM, resistant to cuts, tears, oil and flame

Our Verdict

The TEMCo 4 gauge 85 ft cable is a solid value for anyone needing a long, flexible copper lead for battery, solar or light welding work; its OFC stranded conductor and EPDM jacket combine durability and flexibility that justify the purchase for most DIY and mobile power installs.

Frequently Asked Questions

Can this cable be used for solar and battery banks?
Yes, it is rated to 600 volts and is commonly used for battery banks, inverter feeds and solar DC runs.

Is the conductor genuine copper and flexible?
Yes, the conductor is annealed oxygen free copper with 364/30 stranding for high flexibility.

Does it come with lugs attached?
No, the cable is sold bare so you will need to crimp or solder your own terminations.