DAIERTEK12V USB C Car Charger Socket, 12V USB Outlet, 48W PD Type C & QC 3.0 12 Volt Dual USB Charging Port Waterproof with Voltmeter & ON/Off Switch for Car Marine Boat Golf Cart -3Pack

Here is a quote from the item discription"USB-C Output: 5V=3A, 9V=3A, 12V=2.5A, 15V=2A, 20V=1.5A (30W Max)"I have now tested 12 & 24 Volt input. Either way these are NOT capable of 15V or 20V PD. The max power I've seen is 12V/18W. Definately NOT 30W . False advertising.No, it is not just my device. I've tested laptops, portable speakers, tablets, you name it. I am testing other PD chargers (and cables) side by side with this one, confirming the max power my device is capable of utilizing at the moment.I ordered a few different versions of these PD chargers here on amazon.. This one is the worst. Others I have can do 9v/20W, 12V/30W, and the best one, 20V/60W.I shouldn't have bothered with these, but It seemed like a good deal for 3, and the description specifically says "up to" 30W" which is not the case clearly.If you're reading this review and you want more than 17 watts..dont buy these.

This was the cheapest way to get multiple PD/3.0 sockets so I’m not really surprised that I only got one 50cm wired connector with an inline fuse. Amazon offered me a replacement but I have little faith that a replacement would come with (3) 50cm wired connectors with inline fuses. Took a $5 credit instead and I’ll just wire it up myself since the included wiring is…not the greatest. Maybe I’m wrong and mine was just an isolated packaging mistake.The voltmeter is off by 0.10V when compared to my Drok 5 digit voltmeter and my fairly cheap multimeter but again…wasn’t expecting it to be accurate.Just out of curiosity I’ll probably test these chargers to see if they deliver the current they advertise. Right now I’m assuming the PD and QC 3.0 will function as advertised and that’s why I’m giving it 4 stars. $30 for 3 12v charger sockets is a good deal. I’m a little concerned about how fast the voltmeter display was draining a 9v battery when tested for accuracy. I’m thinking twice about installing multiple chargers with a voltmeter display. Probably best to just have one and replace any other 12v outlet with a straight up PD/3.0 QC charger with no display.

I was building a charging station for battery packs, and used these with a dc power supply. One of the sockets I received would not power up, and one had loose terminals on the bottom. Replacements were sent out quickly, and the replacements worked fine. Other than the QC issues, the sockets are low profile, have covers, and do exactly what I needed them to. For the price, I dont think you can go wrong. I would buy again.

I put these on ATV'sThey are perfect.A little dielectric grease on the terminals finishes them off perfect.These function in every condition we put them through over 2 years and they have never let us down...

Got two units, one wouldn’t power on at all, the other briefly worked and then the connector pins fell out of the back.