One of the big pain points with all of the DJI Mavic Pro drones is that they do not charge via USB. In order to charge the batteries you have to buy an AC-DC adapter which adds a good amount of extra weight and bulk to something that could just otherwise be a single USB-C cable.
The charger outputs 13.05 V at 3.83 A. Since QC 3.0 can go up to 20V and 18W, it could output 13.00V at 1.4A, slower than the stock charger but vastly simplifying the charging hardware.
How difficult would it be to hack together the DJI battery's charging plug into a USB-C cable that somehow directs the QC 3.0 power adapter to only provide 13V?
I'm assuming that the current will actually be controlled by the DJI battery, right? So if the DJI battery tries to pull 3.83A it would fry the QC 3.0 charger?