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

If your car refuses to start from a weak or dead battery, these compact devices can jump-start your car wherever ... twice as fast as a standard USB charger. Its compact design ensures easy ...

The advantage of a charger over a jump starter is how you know it is giving the battery a full charge, and once filled the battery will start your car repeatedly and reliably. However, if the ...

Extend the life of your car battery or bring a depleted one back to full power with expert-approved chargers from Battery ...

A few battery chargers also offer a “jump start mode”, which can start a car or motorcycle with a dead battery, but this is rare, and most of the time you’ll need to buy a separate jump ...

When it comes to jump starter packs, those features are only the start. What else can it do? On a single charge, a portable car battery pack or charger can power your high-draw laptop computer ...