TOPDC Pure Copper 4 Gauge 20 Feet Jumper Cables for Car, SUV and Trucks Battery, Heavy Duty Automotive Booster Cables for Jump Starting Dead or Weak Batteries with Carry Bag

There is a difference between "jumper" or "booster" cables. These are actual STARTER cables...thicker, pure copper, made to PERFORM. I accidently left a radar detector on in my new 2024 Mazda CX-50 Turbo for a week. The battery was DEAD as a DOORNAIL. I have a portable battery pack I made with a Dakota Lithium starter battery (1,000 CCA). I first used some smaller "jumper" cables. The pos clamp ends got hot and did NOT start the car. I switched to the TOPDC 4-AWG pure copper ones -- BAMMO - fired up the car with no issues.REVIEW- top quality and working mans cables -- can handle the toughest starter needs- nice case to stow away- safety clamp ends that are heavy duty in all aspects- thick copper -- might be cumbersome to some users (but, you know you got good manly-man cables)- at $50, no brainer to keep in the car, truck, SUV, tank, boat, or mobile howitzer

Well made jumper cables twice as heavy as previous ones, so appear to be CU as stated. Supplied bag is nice and very compact snug fit - have to wonder if they will ever go back into it after use. Best cables I own now.

Best pure copper wire for the price!

I have not used them yet. I did take them out and they are very sturdy, heavy duty. I feel confident they will preform well.If not I will add to this review.I don't think I will need to.Thank you.

Nice, easy to handle cables because of their flexibility. The clamps are decent, but I would have liked some clamping teeth on the nose of the clamps, as well as the sides of the clamps. Sometimes, it's more convenient to clamp to a battery post or a ground point vertically with just the nose of the clamp because of limited clearance. The carry bag is weak - the stitching falls apart. I have a Bucket Boss round Cordura nylon jumper cable bag, which is rugged, holds at least 25 feet of cable, and has an outside pocket to hold things like work gloves.

The cables themselves look great, but the bag included was beyond useless. It not only was split right out of the box, but was way too small for being able to put the cables back in. I ended up ordering a real cable bag from another company. Please DCTOP, guit even mentioning the cable bag.

The bag is pretty lightweight, but the bag isn't going to jump your battery when you need to. The cables are heavy duty copper wire, and the metal clamps have strong springs. The cables are great! I can get a plastic case at the local store to make this perfect for the 4x4.

Heavy duty. Started my truck right up!