Incorrect battery percentage readings on iPhone after battery replacement

I changed my iPhone battery a month ago. From the first use, the battery reading has been incorrect. When I charge it, while it’s connected to the charger and I check the charge level, it might show, for example, 76%, but in the battery section, it shows 89%.

The second problem is that after charging, if I turn it off and on, the battery percentage changes—for example, it was 80% and then becomes 84%. Even if I don’t use the iPhone, the battery decreases. I went back to the place where I changed the battery, and they said they did a repair and the battery is fine, but the problem still exists. What should I do?



[Edited by Moderator]

Original Title: بطارية

iPhone 13, iOS 18

Posted on Aug 16, 2025 8:05 AM

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Incorrect battery percentage readings on iPhone after battery replacement

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