iPad Batteries
You can treat your iPad’s battery just like your iPhone’s battery and get great results; the two devices are quite similar in this regard. However, we will note that iPads have a much bigger screen – that’s obvious, but it means that its battery power drain is more closely related to screen brightness and management.
That means lowering the screen’s brightness can have a bigger impact on battery life than it does on an iPhone. So if you really want to make a difference in your iPad’s battery, start by lowering its screen brightness in the Control Center or the Settings app.