The LG G5 phone supports both Qualcomm's Quick Charge 3.0 and USB Power Delivery over USB Type-C, so let's see how well it works with other USB Power Delivery chargers like the Ventev Wallport pd1300 Wall Charger.
The Ventev Wallport pd1300 Wall Charger initiates USB Power Delivery negotiations with the LG G5 by constantly advertising its source capabilities of 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), 45 watts (15 volts @ 3 amps), and 45 watts (20 volts @ 2.25 amps).
After a hard reset, the LG G5 finally requests to pull 18 watts (9 volts @ 2 amps) which the charger complies.
As the LG G5's battery gets closer to being fully charged, we can see that the phone pulls around 10 watts (9 volts @ 1.1 amps) from the Ventev Wallport pd1300 Wall Charger.
It's good to see that the LG G5 can be used with a third party alternative like the Ventev Wallport pd1300 Wall Charger to charge over USB Power Delivery.