You depend on your car not to leave you stranded, so don't leave your car to die. We put three of the top brands to the test to find the best. Tested By Justin Helton Published: May 9, 2025 ...

Battery Tender produces some of the best chargers out there. I chose the 12V Battery Charger and Maintainer and the Four Bank Multibank Charger as they are user-friendly and straightforward.

Mostly intended as a battery maintainer, this 0.75-amp charger is ideal for small engines, lawn tools, and motorcycles; it is not for resurrecting a dead car battery.

These car battery chargers and maintainers are the antidote to the dreaded click of a lifeless ignition. By Gannon Burgett, Katherine Keeler and Collin Morgan Published: Oct 16, 2023 3:36 PM EDT ...

One of the most important things to know about a portable charger is the number of milliampere-hours (mAh) it offers since mAh measures a charger’s battery capacity. A smartphone battery usually ...

1. Biolite Charge 40 PD A 10,000-mAh power bank, the Charge 40 PD from BioLite can deliver 2.5 phone charges on a full battery. With a rugged, no-scratch exterior and a slim profile, this charger ...

Nimble Champ 5K Portable Charger: “At 6.2 ounces, it’s one of the lightest on the market. It’s smaller than a deck of cards and can deliver 20 watts to charge two devices at once via a USB-C ...

A portable jumper is good to keep in your car if you don't have a battery charger, and it's also good to have one in your garage if your car won't start while you're still at home.