How to change an iPad battery
The iPad tablet uses a lithium-ion (Li-ion) battery, which can last for three or more years with moderate use. If the battery is losing the ability to hold a charge for very long, it needs to be replaced.
Unfortunately, the battery in an iPad is located inside the tablet and is not easily accessible. Removing it requires the iPad to be opened and the battery carefully removed. As the iPad owner, if you open the iPad to remove the battery yourself, you will void any warranty that remains. You may also accidentally damage the iPad, causing it to not function properly or at all.
To replace the iPad battery, we recommend taking the iPad to an authorized Apple service center, like Best Buy. They can safely replace the battery in the iPad, without voiding any remaining warranty.