The $190 Homshade 12-Volt Portable Car Jump Starter is the answer to all car battery-related worries, and Walmart is selling ...

Picture this. You're ready to drive around town in your hybrid car and realize you left the headlights on — oops. This could mean a couple of things, but there's a pretty good chance that the battery ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Recently, I saw a post on social media about using a tool battery to jumpstart a car.

Well, shoot. Your car battery went dead. Fortunately, a knight of the road came by and gave you a jump, so now the engine's back on again. That means your alternator is on, too, which should be ...