Charge AirPods to use with iPad
Charge AirPods Max
Connect AirPods Max to a power outlet using a Lightning to USB Cable and a compatible power adapter.
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Note: To help maintain the battery charge when you’re not using AirPods Max, put AirPods Max in sleep mode by placing them in the Smart Case. (You can’t play audio on AirPods Max when they’re in the Smart Case.)
See the Apple Support article How to charge your AirPods Max and learn about battery life.
Charge AirPods Pro or AirPods (1st and 2nd generation)
Put the AirPods in their case.
Close the lid.
AirPods shut down and charge whenever they’re in the case with the lid closed.
To charge the case, do one of the following:
Connect the case to a power outlet using a Lightning to USB Cable and a compatible power adapter.
If you have AirPods with Wireless Charging Case or AirPods Pro, place the case with the status light facing up on the center of a MagSafe wireless charger or a Qi-certified charger.
See the Apple Support article Charge your AirPods and learn about battery life.
To see how much charge your AirPods have left, check the Batteries widget. See Add widgets on iPad.