AC500 Charging but Not Showing AC Output Numbers

Hey, New here I just got my AC500 and B300S and super excited. I did notice something weird as I’m testing it at home…
I am charging a camera battery through the AC output and its charging but no Watt numbers are showing up on the desplay or the app? Any ideas?
Thanks, Nick

The AC output of the AC500 will not be displayed if it is below 40W. However, your device will still be powered normally.
Because the current is not easy to sample due to the relatively small power, the error will be larger.