Quote:
Originally Posted by Quoth
I've found that if a charger is supplied for USB, that's the one that has to be used, unless the charger has an exact spec and that matches. The USB-C gadgets have all the options that used to be on USB (as some are simply a USB-C socket on micro-USB circuit), plus there are at least 3 different schemes for more than 5V.
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USB Power Delivery (USB PD) makes this mess go away, assuming device manufacturers comply with the specs. I have one 140W USB PD single device power supply and one 75W USB PD three device power supply for travel. All of my USB PD devices work with both except for my notebook which requires 100W. The 75W wart can't provide sufficient power for it. I also have a 100W USB PD power bank which will power up to four devices simultaneously up to 100W total.