How to Check if a USB-C Cable Supports Fast Charging

Person plugging the Anker New Nylon USB-C cable into a phone
Justin Duino / How-To Geek

In general, you should use the cable provided with the phone. If one was not included, stick with cables made for your specific phone. You can use apps to measure the voltage to see if fast charging is working.

Fast charging is a relatively recent addition to smartphones that has become common. Some devices can be charged from 0-100 in less than an hour. It’s pretty awesome, but it doesn’t work with just any old USB-C cable.

A typical USB port sends around 2.5W of power to the connected device. Fast charging bumps this up to 15W on the low end, while some go all the way up to 100W. If you want to take advantage of these faster charging speeds, you’ll need to make sure you have compatible accessories.

It’s Not Just the Cable

First, we need to point out that the USB-C cable is only one part of the fast charging equation. The AC adapter—or “charging brick”—also needs to support fast charging. A fast-charging compatible cable won’t charge your device faster than if you’re using a standard AC adapter.

If your phone supports one of the several fast charging standards, it probably came with an AC adapter and cable that enables it. If not, you can check which fast charging standard your device supports and find compatible accessories. Check out our guide to the best phone chargers for a variety of options.

The Best Phone Chargers of 2022

USB C Charger TECKNET 65W PD 3.0 GaN Charger Type C Foldable Adapter with 3-Port Fast Wall Charger Compatible for iPhone 14 Pro Max/14 Plus/13, MacBook Pro, iPad Pro, Switch, Galaxy S22/S21

Apple 20W USB-C Power Adapter – iPhone Charger with Fast Charging Capability, Type C Wall Charger

Amazon Basics 100W Four-Port GaN Wall Charger with 2 USB-C Ports (65W + 18W) and 2 USB-A Ports (17W) – White (non-PPS)

Anker Wireless Charger, 313 Wireless Charger (Pad), Qi-Certified 10W Max for iPhone 12/12 Pro/12 mini/12 Pro Max, SE 2020, 11, AirPods (No AC Adapter, Not Compatible with MagSafe Magnetic Charging)

USB C Car Charger 48W Super Mini AINOPE All Metal Fast USB Car Charger Adapter PD&QC 3.0 Dual Port Compatible with iPhone 14 13 12 11 Pro Max X XR XS 8 Samsung Galaxy Note 20/10 S21/20/10 Google Pixel

Techsmarter 11-Port Charging Station with 100W Five USB-C PD, PPS 25/45W, Five 18W USB-A Ports & 15W Detachable Wireless Charger Pad. Compatible with MacBook, iPad, iPhone, Samsung, Dell, HP, Yoga…

Is My Cable a Fast Charging Cable?

There are a couple of things you can do to check if your existing cables support fast charging. First, you should start by checking the packaging of your phone or find the listing online and see what it says is included in the box.

If your phone came with a fast-charging USB-C cable, the specs of the cable will be listed on the box or online. Sometimes it will simply say “Fast Charging.” Other terms to look for are “Adaptive Fast Charging,” “Quick Charge,” and “USB PD” or “USB Power Delivery.”

Another easy thing to check is the thickness of the cable. Fast-charging cables tend to be a bit thicker than regular cables, but this isn’t always super noticeable.

RELATED: USB Type-C Explained: What is USB-C and Why You’ll Want it

If you know the AC adapter supports fast charging, you can use your phone to make sure the cable is fast charging too. iPhone and Android can use an app called Ampere to see a real-time measurement of voltage. Look for 5V, 9V, 12V, or higher. Some Android phones will also put “Fast Charging” on the lock screen (shown below).

Fast charging message.

Sadly, most USB-C cables don’t have fast charging labels on the cable itself. However, you may see one that has a lightning bolt icon or initials for “Quick Charge.”

In general, it’s a good rule of thumb to stick with USB-C cables and adapters that are made specifically for your phone. In most cases, that will ensure you’re getting the fastest speeds possible. Not all USB-C cables are created equal, so be careful with what you use. Take a look at our guide to the best USB-C cables for shopping advice.

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