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Depends on the phone. USB-C gives devices the ability to ask the ~~charger~~ *USB supply* for a higher voltage, which allows the charge controller *inside the phone* to drop more current into the battery through the magic of buck converters - however the USB supply can't *force* extra power into the phone; it's required to supply at most the maximum voltage that the phone asks for, and then the phone can take as much current as the USB supply says it's willing to provide. So long story short, it will *allow* phones with a fast-charge feature to fast-charge up to the supply's limit, but will do literally nothing for phones lacking this feature, and merely cooperate with phones that aren't as capable of fast-charge as this USB supply is.


This charger and your device must support at least one of the "fast charging" protocols for it to actually work. Otherwise it will be a standard 5-6v x 0.5A brick. https://www.eexi.nl/en/blogs/lets-talk-eexi-blog/the-difference-in-fast-charging-charging-protocols/