Larger portable jump-starting devices that clamp to a car's battery have become common in the past few years. But even smaller devices, which plug into a car's power outlet, are now on the market.

Portable jump starters are simple to compare. Under the skin, these devices are ... devices that you’ll be able to power. As a lifelong car enthusiast, road trips are one of my favorite ways ...

But the one tool you should never leave home without is a portable car jump starter like this bestseller from Walmart, and it's now under $50. The Gooloo Portable Car Jump Starter is currently for ...