The usual voltage steps of USB-C are 5 V, 9 V, 15 V and 20 V ; 12V support is optional and is more of a convention. These steps are referred to as SPR, and EPR adds 28 V, 36 V and 48 V steps into ...

Some of today’s cars also now come with USB-C ports, which should offer even quicker charging, but this isn’t universally the case. Even then, you could be better off using the 12V lighter socket.

Depending on how the end-point negotiates with the charger, either 5V, 9V or 12V outputs are supported ... is currently at version 4 and supports USB-C and USB-PD hardware such as cables and ...