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DanDan1196 Author

Level 1

4 points

Slow Charging at 90% with Optimised Battery Charging turned OFF

September 2022

iPhone 12 Pro Max 256 GB
IOS 16.0
20W UBS-C Power Adapter (Apple)
Optimised Battery Charging - OFF

Charging time slows down when it reaches 90% charged even with the Optimised Battery Charging turned off, I have a shortcut that runs a notification when my phone is charged as I charge it when I am awake and near the phone, but I have noticed it will fast charge until 90% every time and then slow down considerably.

Why is this happening?

iPhone 12 Pro Max, iOS 16

Posted on Sep 23, 2022 10:37 PM

Top-ranking reply

Mrokircredsz

Level 4

2,058 points

Posted on Sep 23, 2022 11:09 PM

The iPhone will automatically slow down charge above 80% to protect the battery.

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Slow Charging at 90% with Optimised Battery Charging turned OFF

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