But your device will pull only as much power as it’s rated for, so there’s no safety concern about your phone being damaged or overheating when you’re using a more-powerful charger. Phones that support USB Power Delivery (USB PD)-the standard that allows for fast charging over USB-C-generally draw as much as 18 watts, while larger devices can take 45 watts or more.
USB-C ports with 18- to 45-watt output: A USB-C port charges most modern phones faster than a USB-A port does (if you’re using the right cable), and it can even charge tablets and laptops.It’s almost always a better value to choose a charger with two or more ports, whether those ports be USB-A, USB-C, or a combination of the two. At least two USB ports: The cost and space savings of a single-port charger aren’t significant enough to justify the limited output.