You can jump-start a dead car battery by using jumper cables to connect its terminals to the terminals of a functioning car battery or a standalone jump starter kit. However, if you don’t know how to ...

While replacing a car battery used to be a fairly simple process, it’s often much more complicated in modern cars. After reading some of the potential problems noted below, you may decide it’s a chore ...

A dead car battery can leave you stranded, which can be inconvenient at best or downright dangerous at worst. In many cases you can jump-start the vehicle, but that’s not always possible. Reviving a ...

You're running late, your car won't start, and you're standing there with jumper cables and a charger wondering –– do I have to disconnect the battery before I juice it up? The short answer is no, you ...

A dead car battery can happen to anyone. It can happen to you, too, if you forget to turn off your vehicle’s headlights or you accidentally leave accessories turned on like the car stereo. It usually ...

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.

Harbor Freight carries almost anything you could need, including useful car accessories like battery chargers. Here are the ...

Installing a new car battery might seem straightforward, but connecting it incorrectly — usually by swapping the positive and negative cables – can cause major damage. A backward connection directs ...

Cold weather kills car batteries fast. If yours is 3+ years old, watch for these warning signs before you're stranded. Here's how to spot a failing battery ...

️ Editor's note: This article was updated with new information in December 2025. Dead batteries are a predictable reality for any car that spends more time parked than driven. Battery discharge does ...