Jump-starting dead batteries with portable jump-packs has never been easier, and in the case of cars and pickups, never more economical. Portable jump-packs are essentially a high-capacity battery in ...

Jump starters used to be bulky, expensive, and something only serious gearheads kept in the garage. Now they're compact ...

A jump start uses a working battery to supply enough current for the starter motor, then lets the alternator recharge the ...

Q. You have recommended a particular lithium battery jump start pack in the past, but I lost the info. Do you have a current recommendation? A. These compact jump packs have replaced jumper cables in ...

If you own more than a two performance cars, then having a portable battery pack is a quick and easy resource when a battery goes flat. We looked into several portable battery packs that offer ...

️ 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 ...

I'm planning to change out my car battery. I haven't done this myself in at least 20 years and back in those days, removing the battery generally meant your car stereo locked and you needed a code to ...