Do you have an iPad not turning on?
First, try to connect it to a charging cable and see if it is showing the charging icon.
If it doesn't, then your iPad is not charging.
If your iPad does not charge, make sure you have your charger connected to the wall socket because a lightning connection to a USB port won’t cut it.
Does the problem persist?
Test with a different charger and a different lightning cable since you might have a faulty power adapter or cable or you have a low wattage USB power charger.
Still having issues? Please submit a ticket here.