Before you jump start a car, make sure cables are not touching any moving engine parts. 1. SAFEST WAY TO JUMP START A CAR: Start the engine of the car with the charged battery and let it idle for ...

“These manuals spell out step-by-step instructions on the proper way to jump-start the car,” he says. “If in doubt, seek help ...

Keeping one in your car's trunk means you don't have to rely on a passing traveler with a pair of jumper cables.