The 3 Best USB Phone Chargers (2026): Anker, DeWalt

For this round of car-charger testing, I looked first for known quantities and trusted charging technology brands like Anker, Belkin, and Ugreen. I also ordered and tested devices that other credible sources had ranked as their favorite USB chargers, making sure that each charger is broadly available and easy to find. Needless to say, I only assessed and recommend UL-certified chargers, and avoided dodgy-looking brands: Short circuits in cars aren’t fun, for me or for you.

Photograph: Matthew Korfhage

I then set about testing the claims for each car charger, using ammeters for each port on each charger, testing with an ammeter while pulling max loads. I additionally used the Ampere phone app to test the peak draw for a Motorola Razr and an iPhone 13, and also tested to see whether the charger heated up while pulling max draw—both using the phone app and an infrared thermometer.

I tested with each charger’s included cord, where relevant, but also with a fast-charging cable on USB-C devices that advertise this capability. For my top contenders among 100-watt fast chargers, I also tested to see how long it took to charge a Macbook Air M4 and my top-pick jump starter, the 4000A Wolfbox.

As with every device tested by the WIRED Reviews team, I subjected my top-pick chargers to real-world road tests. I went on multi-hour road trips with devices plugged in. I charged portable jump starters or laptops while also charging phones. I tested durability in real-world conditions that may also involve grubby fingers. I assessed each device not just for brute speed, but for versatility in different use cases. For now, I favor chargers that offer both USB-C and USB-A capability, so as not to leave any devices out in the cold.

I also checked up on customer reviews for each of these chargers. If I saw any customer complaints, I tried my darndest to replicate them. I jammed chargers in and out of the ports, and wobbled the chargers around in their sockets. I acted the way people act when they’re fumbling for a device charger they’re not looking at while driving.

I’ve put a bit of emphasis on trusted brands while testing USB chargers, and this isn’t by accident. The world is full of dodgy gas station or Amazon chargers, and bad cables, with insufficient electrical insulation and inconsistent current delivery.

Bad USB-C cables and electrical insulation are known fire hazards in the worst cases, but inconsistent voltage is also just bad for your phone or laptop battery over time. Poorly made chargers, connectors, and cables can have higher resistance (leading to overheating), bad or inconsistent connections, and poor protections against shorts and surges. All of these things are bad. At worst, they can fry your device or lower your battery longevity.

As a rule of thumb, look for language that a product is “UL-Listed” or “UL-Certified” not merely “UL-Classified” or “Recognized.” The latter two mean that a product has been tested only against specific hazards or under specific conditions. Listed and Certified products have fully passed all tests within a given standard. WIRED will only recommend chargers that are UL-listed or -certified.