Sounds like a good JR High science project .
'How to tell if high brightness on a Mac Ipad pro can over come a ( 5 , 10 or 12 Watt apple charger )"
-- without using a clamp on DC Amp meter - we can not make it too easy
Suggest testing at say 50 % battery level and a Time-Lapse photo app to take the data.
'How to tell if high brightness on a Mac Ipad pro can over come a ( 5 , 10 or 12 Watt apple charger )"
-- without using a clamp on DC Amp meter - we can not make it too easy
Suggest testing at say 50 % battery level and a Time-Lapse photo app to take the data.