Why Does My Dc Power Supply Show Current Draw With Usb Connected Iphone 6

Chosen Solution

I have an iphone 6 that boots and crashes. I’ve noticed that when it’s powered by my DCPS and I plug in USB to initiate boot, the power is drawn from the DCPS not the USB. is this a faulty q1403?

when you plug in the usb to boot the dc will show the current as you dont have a battery connected so usb wont show amps because there is no battery to charge, same as if u press the power button when dc is connected it will show the current draw