It's harder to do with a usb-c charger and laptop because the spec requires higher voltages are made available with higher wattages, and manufacturers only make products to hit sweet spots in the specs and market.
You might end up with a readily available 65W charger to get the necessary 20V, even if you don't want 3A.
You might end up with a readily available 65W charger to get the necessary 20V, even if you don't want 3A.
https://en.wikipedia.org/wiki/USB_hardware#USB_Power_Deliver...