Between the invention of the self starter and the end of the 20th Century, the best portable car jump starters weren’t ...

You get back to your car after a "quick" errand, turn the key, and the battery gives you nothing but a lonely click. You look around for help, but the parking lot is empty already. Now it's just you, ...

Portable jump starters can squeeze an incredible amount of power into a package the size of a lunch box. The best ones will hold a charge for months so they’re at the ready in case of an emergency.

Editor’s Note: We test and review every product we recommend.Read how MotorTrend tests products here. Don’t let a dead battery suck the juice out of your morning. With a little bit of preparation, you ...