My iPad 6th edition shows charging but won't charge above 13 percent
IPad shows charging but isn't charging
iPad, iPadOS 14
Question marked as
Try a hard reset of your iPad by holding down both the Home and sleep/wake buttons simultaneously until your iPad goes to black and restarts with Apple logo, then release the buttons.
Also, do you have/own another known good charge cable and 10/12W Apple power/charging adqpter to test with?
Good Luck!