iPhone 15 Pro battery health dropped to 92% over 6 months of active use

Started using my Iphone 15 Pro in November 27, and I’m an active user…

Is it normal that I have 303 cycles by now, and 92% capacity?

Only 5 days ago, in 15th june, it was 93% and now it’s 92%



[Re-Titled by Moderator]

Original Title: 92% in 6 months (205 days)

iPhone 15 Pro, iOS 18

Posted on Jun 19, 2025 12:38 PM

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Question marked as Top-ranking reply

Posted on Jun 19, 2025 12:46 PM

ingkar65 wrote:

Started using my Iphone 15 Pro in November 27, and I’m an active user…
Is it normal that I have 303 cycles by now, and 92% capacity?
Only 5 days ago, in 15th june, it was 93% and now it’s 92%

Pretty normal. On average for up to every 50 cycles, battery health can reduce by 1%. It's not linear, so it can remain steady for a while, then drop a few points. 303/50 = 6.06. Anything in the 92 - 94% range would be within a normal range. It may stay at 92% for a while, before it drops again. But drop again, it is guaranteed to do as with every full cycle charge, battery health declines. Batteries are consumable parts and their decline cannot be stopped. When the day comes that your battery health dips to 80%, it will then be time to pay Apple to replace the battery.

3 replies
Question marked as Top-ranking reply

Jun 19, 2025 12:46 PM in response to ingkar65

ingkar65 wrote:

Started using my Iphone 15 Pro in November 27, and I’m an active user…
Is it normal that I have 303 cycles by now, and 92% capacity?
Only 5 days ago, in 15th june, it was 93% and now it’s 92%

Pretty normal. On average for up to every 50 cycles, battery health can reduce by 1%. It's not linear, so it can remain steady for a while, then drop a few points. 303/50 = 6.06. Anything in the 92 - 94% range would be within a normal range. It may stay at 92% for a while, before it drops again. But drop again, it is guaranteed to do as with every full cycle charge, battery health declines. Batteries are consumable parts and their decline cannot be stopped. When the day comes that your battery health dips to 80%, it will then be time to pay Apple to replace the battery.

Jun 19, 2025 1:01 PM in response to ingkar65

Only 5 days ago, in 15th june, it was 93% and now it’s 92%


it might have been 93.0% and declined to 92.9%, but Apple will display this as 92% because they always round down any tenths of a percent (and don't tell you about this).


So, what looked to you like a 1% drop may have only been a drop of .1%.


Don't try to babysit the battery, it is going to do what it is going to do. All that you really need to remember is to replace the battery when it dips below 80%.



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iPhone 15 Pro battery health dropped to 92% over 6 months of active use

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