Ipad Air 2 Not Charging While In Use. Use the iPad ignore the low battery warnings until it shuts itself down. Apple recommends that once a month or so you run the battery for a full cycle in order to calibrate the readout.
If your iPhone or iPad wont charge one of the first and easiest things to try is a forced restart. Video playback audio playback and Internet browsing using WiFi or cellular data network. Use the iPad ignore the low battery warnings until it shuts itself down.
Make sure that your power adapter can charge your iPad.
Two Apple experts explain what to do when your iPad is not charging. Let it charge for an hour. If it shows little to no charge it means something drained your battery. You may want to borrow one.