When you're on the road, keeping all your devices powered up is easy with the best USB car chargers. There are tons of options out there, so if you're looking for a quality pick, there are a couple specs you'll want to pay particular attention to: the amp output and whether or not it has multiple ports and cables.
A high-quality USB car charger, which plugs into the cigarette lighter, should have 2.1 amps or more for each USB port. Keep in mind that anything lower than that will likely have a slower charging speed. For reference, the best ones have dual USB ports, offering 2.4 amps per port for a total of 4.8 amps of charging power. This type will enable you to charge multiple devices quickly and simultaneously, which is great for when you have passengers. One quick note: Some car chargers come with permanent cables. These aren't as ideal, because you'll have to buy a new one if those cables ever fail.
With these details in mind, read on to shop the best USB car chargers on Amazon. They each have at least two ports, plenty of amps, and varying price points. So, your choice is really just a matter of personal preference and how many devices you plan to charge.