Axon 10 Pro supports Qualcomm Quick Charge 4 and I do believe you would need QC4 charger to charger the phone faster. Currently, you would get faster charge with QC3 adapter that is included with the phone (as oppose to standard slow speed. I am not too sure how much faster it would be with QC4 since even the charger can charge the phone faster, there are still some internal control on how the battery would be charged.
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Axon 10 Pro supports Qualcomm Quick Charge 4 and I do believe you would need QC4 charger to charger the phone faster. Currently, you would get faster charge with QC3 adapter that is included with the phone (as oppose to standard slow speed. I am not too sure how much faster it would be with QC4 since even the charger can charge the phone faster, there are still some internal control on how the battery would be charged.
I know but does it support Power Delivery as well?
I took some measurements with a USB-C power monitoring device with the phone at about 35%.
With a USB-C power source it measured: 8.67v @ 1.52 amps = 13.2 watts (phone reported "fast charging")
For comparison QC3: 8.96v @ 2.00 Amps = 17.92 watts
So, you have PD, but QC3 is faster (if you care -> generally I'm fine charging slower w/ less wear and tear on the battery).