Common problems with iPad 4 chargers are that they charge slowly or that they simply stop working. These errors are most common when using a charger that isn't Apple-certified, but they can also occur when using an official Apple charger.Continue Reading
Keeping the connector at the bottom of the iPad and the USB cable clean can help prevent problems. If a user is experiencing connectivity issues, Apple recommends trying a new USB port, USB cable, or power adapter. Restarting the iPad 4 while connected to a wall adapter sometimes fixes slow charging issues.
If the iPad still won't charge, a new charger may be required.Learn more about Mobile