I have an iPhone 6 as a back up device and I honestly love it since I had it for a very long time and I don’t want anything to happen to it but recently when it reached 20% it suddenly shut down by itself, but when I turned it on, it was back on 20% so Does unexpected shutdown like this gonna damage my iPhone software anyhow?
iPhone 6, iOS 12
It won't damage your phone but it's definitely time for a new battery.
Batteries degrade over time with usage due to chemical aging, that's just how they work.
You can expect about a 1% drop per month 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.
https://support.apple.com/iphone/repair/service/battery-power
About Lithium Ion Batteries
iPhone battery and performance - Apple Support (IN)
It won't damage your phone but it's definitely time for a new battery.
Batteries degrade over time with usage due to chemical aging, that's just how they work.
You can expect about a 1% drop per month 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.
https://support.apple.com/iphone/repair/service/battery-power
About Lithium Ion Batteries
iPhone battery and performance - Apple Support (IN)
does iPhone battery unexpected shutdown cause damage to my iPhone?
