Skip the roadside service call — this compact device jumps dead batteries and fills low-pressure tires, and it's nearly half price today.

Jump starting a car with a dead battery is a fairly simple procedure, but make sure you check these things before attempting ...

A dead car battery can ruin your day, but jump starting your car is one of the simplest fixes you can do yourself. Whether you left your lights on overnight or your battery finally gave up after years ...

Loose or corroded battery terminals restrict electrical power from reaching the rest of the vehicle, making it difficult to start even with a jump. Remove the cables from the terminals and clean them ...

Including our best, most powerful tested option.

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

As colder months sneak up on us, now is the time to prepare for a potential dead car battery. A portable jump starter provides peace of mind – they’re small, portable batteries you can often fit right ...

Jump-starting a car means transferring current from a live battery to a dead battery by creating a circuit to charge the battery. After jumping a car, it’s important to keeping it running for a while.

Jumper cables were once the only option for a dead car battery. Portable jump starters promise a simpler solution, but there are trade-offs worth knowing about.

Portable car battery jump starters can be essential in case of a battery emergency. If your car refuses to start from a weak or dead battery, these compact devices can jump-start your car wherever you ...

Let us set the scene: You're late for work. You grab keys, lock up, jump in car, click seatbelt, start ignition and — whomp, whomp — the blankety-blank car won't start. To make matters worse, there ...

Forbes contributors publish independent expert analyses and insights. Scott Kramer covers golf and luxury technology. Someone recently showed me a portable, self-functioning car battery charger, while ...