I consider this to be a bit of a downgrade - the Mini 1 would accept anything from 12-48 V without negotiation, which made it really easy to power from a vehicle battery or DC wall power (if you have off-grid solar). If you did want to supply it via USB you just needed a small and cheap "dummy load" to negotiate for a voltage in that range. Now, you have to use a PD supply, and those are very hard to find at 36/48 V (in fact, this is the only single one I'm aware of that will do 60 W: https://www.coolgear.com/product/chargeit-mini-82w-usb-type-... ).
As someone who just bought a mini, I looked at this with trepidation, but yeah, I prefer the v1. The v1 comes with a 50ft cable, and I setup a 12v-48v up-converter connected to the LiFePo4 battery in my system, so I could easily run it. I wonder how long of a cable you could get with the USB-C power cable? Sometimes I use a shorter 10ft cable and mount the mini on the roof of my camper, but I do frequently setup under shade at times, and need to be able to run my mini and my solar quite a distance from vehicle. And honestly, the built in battery doesn't really buy me anything since I have a 280ah battery with 400w of solar to keep it charged, and I never need the mini to work without that power supply.
36 volts is strange. But also the power supply you mentioned only outputs 20V max.
Edit: also, this supply is a little strange. The specs say input voltage can range from 24-48V, but the image they have shows an input of 24-28V.
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