A dead car battery happens to almost everyone at some point. According to the American Automobile Association, the common causes include corrosion build up, extreme heat or cold, too many accessories ...

️ Editor's note: This product category requires new testing about once a year. We'll update this article with the most recent information when it's available. This article was updated in December 2025 ...

A dead battery is hardly ever a pleasant surprise. Modern vehicles rely on electronics, sensors, and start-stop systems that place constant strain on the battery, making failures more frequent, ...

Jump starters are essentially powerful batteries with attached jumper cables that can spark your battery back to life without the need for a donor car.

Portable jump starters have become an essential part of modern car care and support kits, offering a reliable solution for dead car batteries without the need for another vehicle or professional help.

They’re everywhere today, but lithium-ion jump starters only first appeared in 2013. Now there are thousands of them (see our favorite portable jump starters), and what was once an expensive specialty ...

Jump starters typically have the same voltage as most car batteries: 12. The range of amps is much wider, though, to fit the gulf of requirements among all types of cars. For example, a small sedan ...