EWCS 4 Gauge Premium Extra Flexible Welding Cable 600 Volt 20 Feet Each Black+Red

Works like it should.

I wish I would have used this wire in some other applications because of its flexibility! I used this as part of a full solar/power system on my teardrop camper. After a year, it has held up well, giving me zero problems. It was fairly easy to install and worked as advertised. The full system provides several days of capacity when the sun is not shining (running some lights, a small cooler, and a CPAP at night). When the sun is shining (or we are on shore power) it has enough capacity to keep the batteries topped off so we can run indefinitely.

Looks really nice.

Nice heavy cable.. used it on a amp install will buy again

Makes great flexible battery cables.

Excellent product

Great product for heavy duty wiring in an RV

I purchased the product assuming is 4AWG size. Is not. Is 4 gauge SAE. AWG (American Wire Gauge) wires are 3-12% larger diameter than SAE (Society of Automotive Engineers), with an accompanying larger carrying capacity. The seller should clearly specify that this wire is not 4 American Wire Gauge. That is the reason for a lot of reviews saying that wire diameter is not large enough for 4awg ring terminal.

perfect amount for wiring up an extra battery in my vehicle

Cooper is very nice. But the copper fits in 8 gauge stereo equipment. Almost.... Maybe a few strains if hair to much for 8 gauge. My 4 gauge connectors fit these with the rubber boot. Which you cant do that.... So not sure what to do with these. Got a 4/8 gauge fuse holder and these work with the 8 gauge insert. A few extra copper pieces didnt fit (maybe i need to try again) but then the rubber boot fit nicely where it suppose to. Not sure how they messure the size. But for cheap crimp connectors. 6 gauge works great. Maybe i should by 2 gauge wire from these guys and it will have 4 gauge of copper in it.