When it comes to jumper cables, having the most powerful ones on hand can mean all the difference in getting your car running safely and quickly. Powerful jumper cables are designed with ultra-thick wire that facilitates better current flow so they’re able to transfer more energy than traditional models. Look for heavy duty booster cable sets made of high quality copper with extra thick insulation and solid clamps that can easily attach to both battery terminals without slipping off. Additionally, make sure you get a set long enough for your vehicle; 6 or 8 gauge wires measuring at least 16 feet should be sufficient for most cars. With the right power cords in tow, you’ll have no problem jumpstarting any engine—even those using higher capacity batteries such as diesel or large SUVs/trucks.