TEMCo 2 Gauge 150 ft Welding and Battery Cable - Heavy Duty Flex

In this review of the TEMCo 2 gauge 150 ft welding cable, the bottom line is simple: this is a heavy duty, highly flexible cable for anyone needing reliable DC power runs up to moderate lengths. The reviewer found it best for welding leads, battery and starter cable replacement, and solar or RV DC systems where a rugged, heat- and oil-resistant jacket and pure copper conductor matter most. The single biggest reason to buy is its combination of annealed oxygen-free copper strands and an EPDM jacket that stays flexible in cold weather while tolerating engine bay heat.

Key Features

• 205 Max Amps: Delivers up to 205 amps for runs up to 50 ft, making it suitable for many welding and heavy DC power tasks.
• Rated to 600 V: The cable is rated to 600 volts, so it can be used safely across a variety of low-voltage DC systems including solar arrays and inverter inputs.
• Wide temperature range: Performs from -58F to +221F, so it remains flexible in cold climates and stable under high under-hood temperatures.
• Pure copper conductor: Uses annealed 30 gauge OFC with 624/30 stranding for excellent conductivity and long-term durability.
• Rugged EPDM jacket: The Easy-Flex rubber sheath resists cuts, abrasion, water, oil and grease, which is useful in workshop and automotive environments.
• Versatile applications: Works for welding, battery and starter cables, car audio, solar systems, RV/DC power runs and winch leads, giving broad utility.

Who It's For

This cable is a solid pick for home hobbyists and tradespeople who need a long, heavy duty run of flexible cable for welding leads, battery banks, or solar DC wiring. Installers working on RVs, vans or boat battery systems will appreciate the high copper content and durable jacket.

It is less appropriate for very long high-current runs beyond the recommended amp/length guidance or for applications that require insulated multi-conductor cable assemblies; for those, a higher gauge or purpose-built multi-conductor cable should be considered.

Pros & Cons

Pros

• High flexibility from the EPDM jacket makes routing around tight bends much easier than stiffer cables.
• Pure annealed OFC conductor provides reliable conductivity and longevity in demanding electrical environments.
• Good environmental resistance to oil, grease, water and abrasion for automotive and workshop use.
• Reasonable ampacity for short to moderate lengths, covering many common welding and battery tasks.

Cons

• 205 amp rating applies to runs up to about 50 ft, so longer runs will see reduced capacity and may need larger gauge cable.
• Single conductor cable requires separate sleeving or protection when multiple insulated conductors are needed.

Specifications

Gauge	2 AWG
Length	150 ft
Max Amps	205 amps (up to 50 ft)
Voltage Rating	Up to 600 volts
Temperature Range	-58F to +221F (-50C to +105C)
Conductor	Annealed 30 gauge OFC, stranding 624/30
Nominal OD	0.413 in (10.49 mm)

Our Verdict

The TEMCo 2 gauge 150 ft cable is a dependable, value-oriented heavy duty cable for welding, battery, solar and RV DC work where flexibility and durability matter. Installers and DIYers who need a long, flexible pure copper conductor with strong environmental resistance will find it a practical choice, though very long high-current runs may require a thicker conductor.

Frequently Asked Questions

Can this cable be used for solar battery banks?
Yes, it is rated to 600 V and is commonly used for solar battery and DC systems, but ensure ampacity and run length match your system requirements.

Is the conductor copper or copper-coated?
The cable uses annealed oxygen-free copper (OFC) conductor, not copper-coated aluminum.

Will it stay flexible in cold weather?
Yes, the EPDM jacket and construction maintain flexibility down to -58F, so it performs well in cold climates.