Portable jump starters are effectively defibrillators for your car. Instead of borrowing power from a donor vehicle, they use a small but brawny battery to provide a similar injection of ...

How to Use a Portable Jump Starter, Safely and Easily Keeping one in your car’s trunk means you don't have to rely on a passing traveler with a pair of jumper cables.

Jump starting your car with any of the Genius Boost line is as simple as connecting the jump starter to your dead battery, pressing the power button, and then turning the key to start the car.