Jumper Cables for Car Battery 4 Gauge 20 FT Booster Cable Heavy Duty 600 A CCA with Carrying Bag Jump Start Emergency Kit Pickup Truck RV Vans SUV

I have to say for the price I paid for these, they are super high quality and durable cables!!

Cables look like they are made well. They are In my car in case they are needed.

These are very heavy duty cables. The 30 ft length makes it easy to connect to hard to reach vehicles. We'll built!

This car jumper cable looks great and feels well-made. The clamps have strong springs for a secure grip and are covered with PVC (polyvinyl chloride) insulation to help prevent electric shock, short circuits, and corrosion. However, the PVC coating is not thick enough to give me complete peace of mind. The 16-foot cable is made from CCA (copper-clad aluminum).The product’s website claims that CCA is "high-quality conductive" and offers "higher current conversion," but this is misleading. Pure copper possesses these qualities, whereas CCA is significantly less conductive, leading to higher resistance and heat buildup, which reduces performance.The 6-gauge cables are rated to handle up to 450 amps in short bursts, making them suitable for jump-starting most cars. However, thicker (lower gauge) cables made of pure copper would perform better.I ordered the 16-foot version, which is useful, but next time, I will opt for at least 25 feet. A longer cable would allow me to park in front of or behind the stalled vehicle while facing the same direction, rather than relying on head-to-head or side-by-side positioning, which can be unsafe.This jumper cable does not have any electrical safety certifications, which is generally acceptable since they are not required. However, some higher-quality cables do obtain certifications for safe insulation and conductivity.Considering its price, this is a good jumper cable. It works well enough for me to recommend it. However, for better performance, a thicker, pure copper alternative would be a smarter investment, though it would come at a significantly higher cost.

The length of these jumper cables is accurate, they’re extremely durable and will definitely last a long time. The only complaint I have is when trying to squeeze them to get them opened up. It’s super hard to do. I’m sure it’s just because I have to use them more to break in the spring, if the plastic shielding around the clamps could be removed just an inch and a half right at the bottom of the clamps it would make it much easier to be able to attach the clamps to the battery and have them actually stay on without coming off. Overall would definitely recommend.

Quality clamps easy to handle/

I am very impressed with the quality of the Nilight jumper cables and the quality of service from Nilight. I contacted Nilight for an issue that was MY fault and they were very responsive in resolving the issue - this speaks to Nilight's customer service and quality. I am beyond impressed!!!!!

Nice heavy duty battery jumper.