iPadOS 16 causing battery drain whilst iPad is on charge

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iPadOS 16 causing battery drain whilst iPad is on charge

I have a 4th generation 12.9" iPad Pro. I updated it to iPadOS 16 this afternoon and, ever since, the battery percentage has been dropping. I can restart it (force reboot) and it will charge back to full, but then will slowly drain again. I have made no other changes other than updating.

So I checked the battery in Settings and saw this - should I be concerned that all these apps are consuming battery whilst it's on charge...? I have no idea why Apple Music, Tips and Books are even listed - I don't use them.

(ignore the 11" 4th generation at the bottom, for some reason the 4th generation 12.9" isn't listed)

iPad Pro, 11-inch, 4th Gen, Wi-Fi

Posted on Nov 4, 2022 03:46 PM

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Answer 1

Nov 4, 2022 06:04 PM in response to NoctuaAthene

If your iPad is connected to external power for extended periods, your iPad’s battery management will change is charging strategy to protect the iPad battery.

Li-ion batteries perform at their best if they are regularly charged and discharged. When continuously maintained at 100% charge, Li-ion batteries will irreversibly deteriorate, prematurely loosing overall capacity. When continuously connected to power, the modified charging strategy reduces the maximum charge to ~80% - this being intended to reduce the chemical aging that will otherwise occur of continuously maintained at 100% charge. The “normal” charging strategy will be restored when a regular charge/discharge routine is re-established.

This may account for the behaviour that you observe.

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Answer 2

NoctuaAthene Author

Level 2

239 points

Nov 4, 2022 03:48 PM in response to NoctuaAthene

The iPad is NEVER used on battery, it's always on charge. I'm slightly concerned here - should I be...? What's causing this...?

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iPadOS 16 causing battery drain whilst iPad is on charge

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