iPhone 14 Pro slow when unplugged after iOS 26 update

The iPhone 14 Pro works fine while plugged in, but as soon as I unplug it and the battery starts draining, the performance drops significantly. What’s going on? This has been happening since the iOS 26 updates.

iPhone 14 Pro, iOS 26

Posted on Feb 27, 2026 3:17 AM

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Question marked as Top-ranking reply

Posted on Feb 27, 2026 3:49 AM

Settings, Battery, Battery Health and charging

What is the battery health? It must be 80 or more


Ensure Low Power mode is not on (yellow battery symbol)


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iPhone 14 Pro slow when unplugged after iOS 26 update

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