CARTMAN 1-Gauge 20 ft Heavy-Duty Jumper Cables — 800A, Anti-Rust Clamps & Cold-Flex Jacket

When you need a robust set of jumper cables for trucks, vans, and full-size cars, CARTMAN's 1-gauge, 20-foot cables are built to deliver power, safety, and longevity. Designed with heavy vehicles in mind, these cables combine high-density CCA conductors with an 800A rating and fully insulated clamps that resist rust and corrosion. The long reach and tangle-resistant jacket make roadside use and storage easier, while the TPR-specified cold flexibility keeps them functional in freezing conditions.

How do these jumper cables perform on larger vehicles?

The 800A rating and 1-gauge construction mean these cables can handle the higher cranking demands of full-size cars, cargo vans, and mid-size pickups. High-density CCA conductors ensure efficient current flow so engine starts are more reliable. The extra length also gives you room to position vehicles safely during a jump-start.

• 800A heavy-duty capacity for larger engines
• 1-gauge high-density CCA for better conductivity
• 20-foot length for flexible vehicle placement

Are the clamps safe and weather resistant?

Yes — CARTMAN's patented anti-rust clamps are fully insulated with a rubber coating to protect users and resist corrosion over time. The clamp design fits both top and side post batteries, reducing slipping and improving contact. The anti-rust treatment helps maintain conductivity after repeated use in wet or salty environments.

• Patented anti-rust clamp surfaces for long-term durability
• Full rubber insulation for safer handling
• Compatible with top and side battery posts

Will these cables work in extreme cold or rough conditions?

They are built to remain flexible down to -25°C (-13°F) thanks to the TPR material in the jacket, so they won't stiffen and become hard to handle in winter climates. The PVC outer jacket is formulated to resist freezing, cracking, and kinking, keeping the cables tangle-free and ready to use. This construction reduces the chance of internal wire damage from repeated folding or exposure to low temperatures.

• TPR material maintains flexibility to -25°C (-13°F)
• PVC jacket resists cracking, freezing, and folding
• Tangle-free design for quick deployment

How easy are these jumper cables to store and transport?

The included carry bag keeps cables organized and protects them from dirt and moisture when not in use. At 20 feet, the length is long enough for practical use while still coiling neatly into the storage bag. The cables' durable jacket and corrosion-resistant clamps also extend the product's usable life, reducing the need for frequent replacements.

• Compact carry bag for neat storage and transport
• 20-foot length balances reach and packability
• Durable build reduces wear during storage

Who is this for? CARTMAN 1 Gauge 20 ft Heavy Duty Jumper Cables are aimed at drivers of larger vehicles — full-size sedans, cargo vans, and mid-size pickups — who want a reliable, winter-ready emergency power solution. If you value long reach, high current capacity, corrosion-resistant clamps, and a flexible jacket that performs in cold weather, these cables offer a professional-grade option for roadside peace of mind.