We’ve all been there: you’re on the go and, in a pinch, you borrow a friend’s USB-C charger, hoping to obtain enough juice to keep your phone alive until you can comfortably give it a proper charge. After connecting the cable to a USB-C port in your friend’s car and connecting the other end to your phone, you see that the charge time will take multiple hours. To make matters worse, there’s no indication that your phone is receiving the fast charge you’re used to. It’s a real issue that we often run into with busy, mobile lives. Smartphones have become more of a utility than the luxury device they once were. We need them for everything. Work, scheduling, family contacts, making appointments, managing finances and banking options, and so much more make phones a true necessity, making a low battery the bane of our existence.
Hyperbole aside, not being able to access fast charging can often be frustrating. And you shouldn’t assume that a USB-C cord or brick will automatically grant you access to a speedy charge. Sometimes, there are multiple factors at play that ultimately determine whether your device can engage in fast charging using a USB-C. It’s important to recognize these factors so you can ensure that you lock down the right equipment and circumstances whenever your phone needs a quick jolt.
Why your USB-C charger might not charge your device quickly
Not all devices, chargers, or cables handle power delivery in the same way
A large majority of phones these days support fast charging. But it is true that whichever device you are attempting to charge, the device sets the maximum charging speed. “Fast” charging doesn’t mean that all phones have the same maximum charging speed. For instance, the current Samsung Galaxy S26 charges up to 25W, while the S26+ can have charging speeds up to 45W. The Google Pixel 10 can reach charge rates of up to 30W. The iPhone models are known to vary, with ranges from 30W to 40W. Naturally, these are all high charge rates. But just understand that each phone’s maximum rate varies depending on the phone.
The charging brick is an entirely different matter. So, you have to know what to look for. Not every charging brick with a USB-C charging port is going to give you rapid charging speeds. You’ll want to ensure that your power brick has USB Power Delivery (USB-C PD). Power Delivery is a universal standard, with the latest 3.1 iteration delivering up to 240W of power with compatible devices. Some chargers also have proprietary technology that may be specific or unique to only certain devices from the same manufacturer. While they may charge at base rates, their faster speeds aren’t unlocked unless the charger aligns with the device. For instance, Qualcomm Quick Charge (QC) is a technology typically supported by Android phones and chargers. When a phone and charger support compatible versions of Quick Charge, they can offer faster charging speeds. Otherwise, the device may charge using a lower standard rate.
The USB-C cable also matters a great deal. Don’t assume that a cable with USB-C connectors at both ends will offer you the fastest speeds. Before buying a cable, ensure that it can match your phone’s fast-charging speeds to get the most out of it. Cables that support fast charging are typically thicker with higher-quality wiring by design. You have to consider these details when selecting a cable.
How to get the fastest charging speeds for your phone
Understand the device you are working with
You first need to understand what your phone is capable of, which entirely depends on your phone’s model. If you do have a phone with access to proprietary charging technology, you should seek out a brick that aligns to take full advantage of it. It’s all about matching your charger and cable to your phone. Make sure you select products that come from reputable manufacturers, and don’t select the items based solely on the ports/connectors. That’s the first mistake most people make. This assumption leads them to purchase the lower-cost item when the technology inside the brick and the materials used in the cable are what truly matter.
Keep in mind that many phones are designed to prevent damage, which may have an effect on the charging speed. If your phone gets too hot, the charging speed will likely slow. If the battery is nearly full, you’ll likely see that the speed is impacted. Adaptive fast charging is an emerging protocol that enables the phone to protect the battery’s health depending on certain circumstances. After all, you want your battery to last a long time. Keep these factors in mind as you set out to purchase your next charging brick, cable, or phone. They all play a role in maximizing your fast-charging ability.
