Can you test the Lightning port of an iPad?

I work for a company that manages a fleet of 1st gen iPad Airs and 6th gen iPads. I’ve recently been getting a lot of iPads returned to me because of suspecting charging issues. I think a number of these issues are due to faulty 3rd party cables/chargers. Is there a way to test a lightning port without removing the display of the iPad? I just want to test if the lightning port is drawing the correct current to charge the battery.