Connected Car
If you use jumper cables incorrectly, you can create a voltage spike that can fry the electronics in both vehicles. Jump-starting with a jumper pack like this is a better alternative. The battery inside the jumper pack provides the boost to the dead battery at a safe voltage. Then connect the positive or red clamp to the positive battery post and the negative or black clamp to the negative battery post. If you carry a jump box or jumper cables in your car and know how to use them properly, a dead battery need not leave you stranded.