iPhone 11 Pro shuts down randomly, either hardware or software senses battery power instantly goes to fully discharged

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Level 1

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iPhone 11 Pro shuts down randomly, either hardware or software senses battery power instantly goes to fully discharged

My iPhone 11 Pro randomly shuts down, exhibiting signs of a dead battery. The battery however is not discharged and may have as much as 80% or more charge remaining. I have contacted Apple Second Level Support and after attempting to run diagnostics they concluded that it is a hardware issue. I am including a screenshot of the battery level which shows the battery appears to discharge instantly and then 2 hours later after a power off - power on cycle the battery again shows 80% charge. Has anyone else experienced this behavior?

Posted on Jun 3, 2023 4:37 AM

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Answer 1

Alancito

Level 7

29,819 points

Jun 3, 2023 12:16 PM in response to chkercs

chkercs wrote: "...The maximum capacity showing in the Settings/Battery is 100%..."

For iPhone 11 models, you can check if the battery has been replaced. (A non-genuine Apple battery can cause the problems you describe.) Go to Settings > General > About

...Does it say anything there about the battery?

iPhone parts and service history - Apple Support

...Found by searching Apple's Knowledge Base.

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Answer 2

Alancito

Level 7

29,819 points

Jun 3, 2023 4:53 AM in response to chkercs

chkercs ~ A weak, degraded battery can still charge up, but won't be able to maintain that charge. ...Does your iPhone 11 Pro still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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Answer 3

chkercs Author

Level 1

5 points

Jun 3, 2023 10:55 AM in response to Alancito

I bought this iphone from Amazon. I recently learned that the seller was actually BuySPRY, I thought I was buying from Amazon. The maximum capacity showing in the Settings/Battery is 100% fully charged so this does not seem to be a discharged battery problem. It appears to be either a hardware issue or a software issue which is misinterpreting the battery level.

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