I trued to plug in my LG G5 into that plug and it doesn't even recognize any power from it. I would guess that it's likely a 0.5A charge power, so not enough to actually charge any of the newer phones. My LG requires at least a 1.5A source to start charging. And as it's Qualicom Quickcharge 3.0, you might as well just use a 12v adaptor that is designed for this task. I was not happy and have complained to the dealer and am insisting that they fix it as it was advertised as a USB charger, but as it doesn't even give as much amperage as the one in the front dash, I am to take it it's not working.