There are a lot of phone chargers out there that charge at 12V. (eg. Xiaomi has 12v 2.25A = 27W, Samsung has 12v 2.1A = 25W etc.) that are NOT usb c PD, but use usb A to usb C.
However I can't find any usb A to usb C cables that allow 12V. The most I see if 5V.
Am I missing something?? Basically none of these chargers could actually provide the stated Wattage given the usb cable limitations.
I've got a Xiaomi Mi 9 with 27W charger, but using AccuBattery & Ampere, noticed it only ever charged at 15W (roughly 5V x 3A).
My wife has the new Samsung Galaxy S21 and so I bought one of these Samsung 25W chargers as they were cheaper than the equivalent 25W PD chargers:
I noticed the same thing, that it only draws 15W.
So I thought it must be the usb cables. Note: I'm using Baseus fast charge Usb A to usb C cables.
Looking online I noticed I can't find any usb A to usb C cable that allows 12V. Hence my dilemma.
Other than throwing all these chargers & cables in the bin and starting over with USB PD chargers & cables, what should I do?