In case you want to remove your iPad’s battery for some reason, then here is a video that shows you how to remove the iPad’s battery. You should not attempt this for a fun as this video doesn’t demonstrate how to replace your iPad’s battery.
This should be done for research or studies, or to solve any problem with your iPad’s battery. If you remove your iPad’s battery as shown in the video without a fair cause and then if you replace it and fail, then you cannot blame anyone. So do it at your own risk.
Check out the video from the below link