Ipad Not Charging Even With New Charger. Grab a flashlight or use the one built into your iPhone and take a close look inside your iPads charging port. Afterwards try charging your iPad again.
Try cleaning the port. If there is any issue with the adapter and the cable it is obvious for the users to complain that they are seeing iPad not charging error message. Make sure that you have the latest version of iOS.
As compared to 5w iPhone charger iPads 12w charger is capable of juicing your device a lot faster.
The USB charging port in your iPad over the time might accumulate dirt dust debris or lint. Make sure that you dont damage the charging port permanently. You may want to use a tooth brush. This accumulation might be causing bad connection to the charging USB cable.