Top positive review
Generally good quality, after small modification carry current very well.
Reviewed in the United States on July 31, 2018
Got these after I decided to make a set of jumpers for my F250 with a 6.0l Powerstroke. After trying to jumpstart a smaller car with very cheap jumper cables (10 or 12 gauge), and finding that I had to wait 15 minutes, I got worried and wanted something that would allow me to start the truck if I ever had a bad battery. Made a set of jumpers using these on one end, 15 feet of 1/0 copper cable, and an SB175 Anderson connector on the other (same as the warn connectors for winches). As per other reviews, I added two 1" wide wire straps between the sides of the clamp to prevent the spring from having to carry current. Construction seems solid, one of the clamps came slightly bent, but not too big a deal to straighten out. About a week after making the cables, I jump started a Honda Odyssey van which had a bad battery after another truck tried for 20 minutes to help. The owners were skeptical after the last one didn't work, but let me try anyways. Inrush current was 613 amps, which dropped to about 260 before the motor started. The minivan started on the first attempt, took about a second of cranking. Inspection of the clamps did not reveal any heat damage, and they still look brand new. I have no doubt they could carry more current, they opened plenty wide enough to clamp over terminals, stiff but not too difficult to open, and feel generally to be something that will last. Very happy with the purchase.