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claudiu261 Author

Level 1

4 points

My iPhone 13 shuts down all the time

i dont know why My Phone shutdown al time

[Re-Titled by Moderator]

Original Title: My Phone is shutdown al time

iPhone 13, iOS 26

Posted on Sep 25, 2025 10:17 AM

Top-ranking reply

Kurtosis12

Level 10

82,542 points

Posted on Sep 25, 2025 10:26 AM

Your battery may be at the end of its life.

Batteries degrade over time with usage due to chemical aging.

You can expect about a 1% drop per 50 charging cycles (25 charging cycles for IPhone 14 and older) with average use on an iPhone. This is an approximation, that is why it may be plus or minus a few percent on a month to month basis.

Apple recommends replacing it when it reaches 80%. To check your battery health, go to Settings > Battery > Battery Health.

iPhone Battery Replacement.

iPhone Battery Replacement - Apple Support

About Lithium Ion Batteries

iPhone battery and performance - Apple Support (IN)

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My iPhone 13 shuts down all the time

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