GTrusted

The iVoler 75W USB Type C Charger with Power Delivery (click here for Amazon pricing) claims to provide 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), 45 watts (15 volts @ 3 amps), and 60 watts (20 volts @ 3 amps) power profiles for fast charging over the USB Type-C interface. This allows you to charge certain USB Type-C phones like the LG G6 fast at 9 volts using USB Power Delivery.

We can see that the iVoler 75W USB Type C Charger with Power Delivery negotiates with the LG G6 over USB Power Delivery by offering 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), and 45 watts (15 volts @ 3 amps) power profiles. The LG G6 follows up to request 27 watts (9 volts @ 3 amps) which is accepted by the charger.

The iVoler 75W USB Type C Charger with Power Delivery  then goes on to offer not only 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), and 45 watts (15 volts @ 3 amps) it initially declared but also an additional power profile of 60 watts (20 volts @ 3 amps). The LG G6 however still insists on 15 watts (9 volts @ 3 amps) which the charger complies.

Plugging in the iVoler 75W USB Type C Charger to the LG G6, charging is observed to happen at around 16.2 watts (9 volts @ 1.8 amps) with the phone's battery being fully depleted.

It's great knowing that a third party charger like the iVoler 75W USB Type C Charger can deliver fast charging to the LG G6 over USB Power Delivery.