
This charger does exactly what I wanted - provides a convenient on/off switch to control power to the Pi 4. I've used it for several hours now (and after a few cycles) without any or adverse problems. I personally find this very useful for dealing with a Pi that isn't "always on", so I plan on powering it down and powering it down. This charger helps me do just that without unplugging and plugging the Pi back in after turning it off to turn it back on. The phone doesn't recognize it as a valid charger and it doesn't seem to draw much power from it, so I don't know if it can be considered a universal USB-C wall charger. I didn't give it any points for doing exactly what it says on the tin, but it's something you might want to know about if you plan on ordering this for a product other than the Pi 4.

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