Originally Posted by
gfunkdave
Wouldn't that be a 222.5W power supply then? That's a lot of power to pull through a little gizmo. I bet it would get pretty hot. The USB-A port on the Ankers is limited to 22.5W...I'm actually not sure how they get 4.5A out of it. I didn't know there was anything that could pull that much power out of a USB-A port.
Is 200+w a lot of power? It depends. The more efficient the circuitry, the less heat, so quality design + quality components could make it happen. Do some intelligent thermal design rather than stuffing it in an insulated plastic case and it this becomes quite doable.
Case in point: My 2009 Macbook Pro's adapter gets almost too hot to touch and is easily 4x the physical size of the Nektek I listed and 6x the size of the UGreen I posted....and it's barely pushing 35W under load. Processor's only 25W TDP, it has an LED backlight and I've retrofitted it with an SSD. I have the UGreen robot plugged in right now and it feels like it's about 36-37C.
As far as USB-A goes, Android's been capable of charging at 36W since 2016. Snapdragon has been capable of charging at 100W since 2017. I believe there are even some which can take a full charge in 15 minutes now.