The reasons for not charging are:
1. The charger is damaged.
2. The temperature is low, and the iPad can't be charged.
3, hardware failure, such as battery aging, poor contact and so on.
Solution: Check the data cable and charger in the end which is broken, first check the charging cable, the charging cable into the iPhone charging cable to try to charge the iPad, see if it can be normal, if not normal, it is the charger is broken, if normal, it is the charging cable is broken.