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How Long It Takes to Fully Charge the LG G7 ThinQ Over Qualcomm Quick Charge with Its Own Adapter


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The LG 16W Qualcomm Quick Charge 3.0 Power Adapter was originally shipped with the LG G7 ThinQ to supply 16 watts based charging for the phone  from its USB Type-A connector. The charger uses Qualcomm Quick Charge 3.0 technology to output 7.5 watts (5 volts @ 1.5 amps) and 16.2 watts (9  volts @ 1.8 amps) to the LG G7 ThinQ that supports Qualcomm Quick Charge 4+ technology which includes USB PD 3.0, PPS (Programmable Power Supply), and Qualcomm Quick Charge 3.0 technology over USB Type-C. To see how well the phone works with its own charger, we plugged in the phone on a fully depleted battery to the USB Type-A port of the LG charger.

Overall the LG G7 ThinQ was observed to use about 140 minutes to charge entirely with the LG 16W Qualcomm Quick Charge 3.0 Power Adapter. Upon plugin, the phone immediately pulled quick changing current resulting in a 0-12.7 watts power band along a 7 volts rail. After the phone has charged a bit, both the current and voltage eventually settled out to about 1 amps on a 5 volts rail after the first hour of charging. Halfway through the 2nd hour, the current started to ramp down to under .1 amps when almost reaching full charge on the battery.

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.

Click here to download the trace captured by the GRL-A1 power analyzer to view the entire charging cycle.

Download the A1 software from Granite River Labs here to view the trace.

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