The LG G7 ThinQ phone supports USB Power Delivery 3.0 based PPS (Programmable Power Supply) and Augmented PDO's for fast charging through Qualcomm Quick Charge 4+ technology, so let's see how well it performs with certain Qualcomm Quick Charge 4+ based chargers such as the 30W QC4+ Charger by Portway Technologies. When connected over USB Type-C, we observed the LG G7 ThinQ took around 140 minutes to get near fully charged by the Portway charger via USB Power Delivery 3.0 and PPS.
Starting with 0% battery on the LG G7 ThinQ when plugged in, the phone initially used Augmented PDO's to request the charger to ramp up from 5 volts to 5.7 volts as current was pulled. After a hard reset later, quick changing current was repeatedly pulled as the phone used APDO's and PPS to charge in between 0-12.7 watts after the first 3 minutes with the Portway 30W QC4+ Charger. Once the battery has charged for 80 minutes, the power charging reset resulting in the current level to decrease for charging to drop to about 1 watt over a duration of 2 hours and 18 minutes. The current pulled eventually settled at mostly below 0.5 amps as the battery was almost full. We also observed no PPS was used during charging as the battery filled up.
The LG G7 ThinQ uses very aggressive power management schemes such that even while the charger is connected to the phone, the current repeatedly goes down close to zero at repeated intervals. This is also similar to how the phone used Qualcomm Quick Charge 3.0 with its own supplied LG 16W QC charger, which also took about 140 minutes for full charge although it could have been faster with the more advanced QC4+ charging by the Portway charger.
Click here to download the trace captured by the GRL-A1 power analyzer to see more details on the entire power charging cycle.