I live in Phoenix where most batteries last at most 2 years due to the constant 110+ degree heat during the summer. As a result, I frequently have to jump the cars in my garage every summer to make the inevitable run to get a new prorated battery. I've bought a few cheaper cables in the past from WM and AZ that have failed to get the job done -- I've yet to have any issues with these cables. I attribute that to the clamp design with its multiple contact points and the high quality cable, versus the alternatives where only one part of the clamp is actually fused to a rather thin cable. You won't have any issues buying this.