Will charging my iPad overnight damage the battery health?

So frequently I noticed that I leave my iPad 9th generation charger overnight and for some reasons I get concerned that it will ruin the battery and it’ll effect the battery performance.



[Re-Titled by Moderator]

Original Title: i left my ipad 9th generation in charge overnight will it ruin the battery health?

iPad, iPadOS 18

Posted on Jun 12, 2025 12:21 AM

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Question marked as Top-ranking reply

Posted on Jun 12, 2025 2:06 AM

Your iPad will suffer no ill effects whatsoever through being connected to its Power Adapter for extended periods. Your iPad will automatically regulate and optimise charging - and will not overcharge the battery. 


When used in kiosk applications - where external power is connected for extended periods of time - the iPad may modify its charging strategy and limit battery charge to ~80% of maximum. This modified charging strategy is designed to reduce chemical ageing that might otherwise occur if 100% charge is maintained at all times.


Nominal 100% charging will be restored when a normal charge/discharge routine is restored.


More information about iPad’s battery management can be found here:

About iPad and iPhone Charge Management Feature – Apple Support

2 replies
Question marked as Top-ranking reply

Jun 12, 2025 2:06 AM in response to ishuuuu_7

Your iPad will suffer no ill effects whatsoever through being connected to its Power Adapter for extended periods. Your iPad will automatically regulate and optimise charging - and will not overcharge the battery. 


When used in kiosk applications - where external power is connected for extended periods of time - the iPad may modify its charging strategy and limit battery charge to ~80% of maximum. This modified charging strategy is designed to reduce chemical ageing that might otherwise occur if 100% charge is maintained at all times.


Nominal 100% charging will be restored when a normal charge/discharge routine is restored.


More information about iPad’s battery management can be found here:

About iPad and iPhone Charge Management Feature – Apple Support

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Will charging my iPad overnight damage the battery health?

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