The cables under the hood of your vehicle have a very important duty, carrying signals and voltages to varying components. These wires are subjected all kind of physical stresses... whether it's environmental (oil, temperature), or physical (rubbing, flexing), they need to be in condition to perform. So, in 1975, the Society of Automotive Engineers (SAE), set to define what was expected of these cables. Quite simply, the critical function of these cables just couldn't be left to chance.
SAE Standard J1127 specifically covers battery cable, which is probably one of the most heavily used sections of cable in most cars and trucks, and likely the most important.
To obtain SAE Approval, a sample has to be submitted, and then applied against a set of standards. Things like "How much copper is in this section of wire", and "how much resistance to gas, ATF fluid, cold, bending, or abrasion?". Each of these tests is performed on the submitted sample, and once passed, allowed to carry the approval. Think about how much the labs must test that doesn't meet those strict standards. I'm not selling amp cable, I'm selling cable to help you get back to civilization. I'm making sure each time you turn the key it just works.
JeepCables.com doesn't do shortcuts. I also don't cheapen the quality of my product by setting it up to fail prematurely. That's exactly why I use only SAE rated cables.