PCWorld, in its testing, found that HP’s Spectre x2 wouldn’t charge with any USB-C charger besides its own. Laptops that rely entirely on USB-C, meanwhile, might not charge with just any charger. If you’re not sure exactly how to charge your laptop, check the manufacturer’s website, or look up a review of the system here at Digital Trends. The Samsung Notebook 9 is an example of that, as is the 2019 HP Envy 13.
This is most common on laptops that come with their own proprietary charger - although a number of laptops can be charged either way, only the propriety charger tends to power up a laptop more quickly. Some laptops come with USB-C ports that don’t charge. Today the majority of laptop USB-C chargers are interchangeable, but it’s not guaranteed. In the real world, this is taking a while to come true. That means that, technically, it doesn’t matter what USB-C charger you use - it should be able to power up a laptop with a USB-C charging port and power bank. But laptops tend to have USB-C more frequently than other devices, at least for now. Newer phones use USB-C charging, car chargers may come with USB-C ports, and portable chargers (discussed more below) can have USB-C options. USB-C chargers are turning up on many different devices, so it’s not strictly relegated to laptops. If your charger uses this connection and plugs into your USB-C port, you have a winner! It also works no matter which way you connect it to the right port, so there’s no need to flip it the right way around. USB-C’s connector is small and rounded, significantly different from the old USB version. You can identify a Type-C charger by its unique features.
So, how do you know if your current laptop has a USB-C port that also works with charging? You could always look it up, but the easiest way is to simply examine your charger. That’s why laptop charging is a new topic of conversation for USB connections, especially now that more laptops are entering the market with USB-C charging compatibility. This type of connection now provides enough power to juice up most laptops ( particularly the Type-C 3.0 version).
However, prior versions of USB could handle a limited amount of power, which is why laptop chargers have typically retained their larger, bulkier cables. That works well because past USB connections had enough wattage to successfully power up those smaller batteries. You have probably already used USB connections to charge smaller devices either from your computer or from an outlet.
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