I bought my iphone 15 pro max back in april and it was going fine with the battery health up until last month it was 98% then I didn’t check it for some time so when i checked it was 93%(on 266) cycles
[Re-Titled by Moderator]
iPhone 15 Pro Max, iOS 18
Batteries, like people are individuals. No two people age exactly the same and batteries don’t age the same either. The exact usage, chemical makeup, storage conditions, exposure to heat and cold and about a dozen other factors mean that every battery ages differently. Battery aging is not a linear (straight line) and degrades at different rates as the chemicals in the battery age and other factors mentioned above. Apple expects your battery health to be at 80% after 24 months. If your battery health misses that expectation, contact Apple Support.
Please review the Apple Support articles on battery optimization. It contains the best current practices for battery charging.
iPhone Battery and Performance - Apple Support
Batteries - Maximizing Performance - Apple
About the battery and performance of iPhone 11 and later - Apple Support
Batteries, like people are individuals. No two people age exactly the same and batteries don’t age the same either. The exact usage, chemical makeup, storage conditions, exposure to heat and cold and about a dozen other factors mean that every battery ages differently. Battery aging is not a linear (straight line) and degrades at different rates as the chemicals in the battery age and other factors mentioned above. Apple expects your battery health to be at 80% after 24 months. If your battery health misses that expectation, contact Apple Support.
Please review the Apple Support articles on battery optimization. It contains the best current practices for battery charging.
iPhone Battery and Performance - Apple Support
Batteries - Maximizing Performance - Apple
About the battery and performance of iPhone 11 and later - Apple Support
Your phone is performing as expected. On average, it's common to see about 1% drop in Battery Health per month. You've owned your phone since April, so about 8 months. 92% - 93% is within the normal range. Battery Health decline is NOT linear. It can drop a point, then remain steady for a while, then drop a couple points. There is one thing you can count on with Battery Health and that is it only goes one direction and that is down. When the health of your battery dips to 80%, which it surely will at some point, it will then be time to pay Apple to replace the battery. Until that time, worrying about the natural decline in Battery Health, which can't be stopped and is inevitable, is not worth worrying over.
But now it dropped 1% of battery health just after 53 cycles
It is normal for the iPhone 15 battery to decline on average at about 1% for every 40-50 charge cycles.
Your friends are really lucky if what they are reporting is true, or the apps they are running are no drawing as much power as yours. It is impossible to compare the performance of two iPhones unless they are truly identical.
Did you read the articles I linked to above? Here are the links again for your convenience.
Please review the Apple Support articles on battery optimization. It contains the best current practices for battery charging.
iPhone Battery and Performance - Apple Support
Batteries - Maximizing Performance - Apple
About the battery and performance of iPhone 11 and later - Apple Support
I bought my Iphone 15 pro max in October 3rd, 2024 (From a Reseller in Bangladesh) . I have used it for 3 month now. I maintained 20-80% cycle all the time. But now it dropped 1% of battery health just after 53 cycles. Where I have seen my other friends having theirs on 99% health with 200+ cycles. I am just confused if it was a normal thing that happent to me or I should be worried?
Battery health decline on iPhone 15 Pro Max
