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If your laptop has a charger with the coaxial power connect (barrel connector), it may not feature USB-C charging, even if it has a USB-C port or two on its chassis. That's also the best place to learn the power requirements and limitations of your laptop, should you ever need to replace the USB-C cable with one of the ones that Cable Matters sells. USB-C chargers will vary but will be labeled with their capabilities. Standard USB-C cables are rated to charge at 60W and cables with a special “electronic marker” are rated for charging up to 100W. The power you choose doesn't necessarily matter, but some laptops come with dedicated USB-C charging ports, so looking at your model's manual, or at an online guide to your laptop, can be a great way to find out the best way to charge it. It will likely have a power brick that connects to a USB-C cable, which then, in turn, plugs into a port on your laptop. If your laptop came with a USB-C charger, then that's the best way to get it powered up. That's why people still wonder, can you charge a laptop with USB-C? Because it still feels a little odd to use what is traditionally a data-only connection on laptops to provide power.
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So, while traditionally USB connections have been relegated to charging smaller devices, today they can charge much more power-hungry devices, like laptops. Along with both USB 3.1 specifications (for faster data transfer) and USB-C port and cables, it also introduced a number of new features. It wasn't until USB Power Delivery was revised in version 2.0 that it became a far more viable standard for charging devices. However, a laptop needs considerably more than that to charge effectively. Traditional USB ports would only be able to handle 2.5W (USB 2.0), 4.5W (USB 3.0), or 7.5W (USB Battery Charging 1.2) of charging power, and thus were only useful to charge smaller devices like phones or tablets. It built atop existing USB standards, which would allow a USB cable to operate as a dedicated charging port, or a charging port with data. When USB Implementers Forum introduced the USB Battery Charging 1.2 standard in the early 2010’s, it was focused on more traditional USB-A and USB-B connectors. Can you charge a laptop with USB-C? Absolutely! Not every laptop, but for those that feature a USB-C connection, there's a good chance you can use that port to charge your laptop with and all you need is the right cable for the job. USB connections just didn't have the power to charge larger devices, like laptops. USB chargers have been a staple of smaller electronic devices for years, from MP3 players to smartphones, but laptops have traditionally required bulkier power cables to get the job done.
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