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Oh wow, you and I got ours around the same time but my first one got stolen around Easter last year, had I still been using that one I am guessing I would be about at the same level of battery health as you then.
I actually used a 10W charger for the most part with USB-A to USB-c (e.g. no PD) and I'm still at 87% on my iPhone 15. I very seldom fast-charge.93% on 260 cycles on a 15 Pro Max.
Since it dropped below 100%, I’m averaging 17 cycles per percent, basically one percent a month.
So at this rate I will drop below 80% after 2.5 years of ownership, by the time iOS27 launches next year.
This despite an 18w charger and 80% charge limit which I hoped to get me to that 2000 cycles/80% health claim for the 15 series. But at this rate it will hit that at just over 500 cycles.
Hopefully a battery change at the iStore is easy enough next year.
Just to come back to this after 8 months with my 15 Pro Max.
80% gets me 6 hours of screen-on-time with 18 hours standby over a 24 hour period. All on Wifi, 5G disabled.
would the phone not get fully bricked at some point?
With 70% battery I've gotten 9.5 hours of screen-on-time which included 5 hours of streaming Dolby Vision Netflix at max brightness.
One battery cycle probably gets me 12.5-13 hours.
Just an update on my 15PM with iOS26.
80% gets me 6.5 hours screen-on-time over an 18 hour period.
This despite battery health being 89%.
Just charge it to 100% Why are you limiting it? Plus it'll be cheaper to replace the batteryMy 15PM is now 2 years old and 75% gets me 5 hours and 15 minutes screen-on-time. Same 89% battery health. I miss the iOS17 + new battery days when 70% got me 9.5 hours.
Suddenly I realize why so many people upgrade their iPhones so regularly.
70% battery? Madness just charge it full.
Just charge it to 100% Why are you limiting it? Plus it'll be cheaper to replace the battery
This I could never understand. If your phone is still working great and have a few years left in it and you struggle with battery life. Just replace the battery.
Its like R1500 at iStore. You can't buy anything for that and upgrading to a new phone will cost way more for little improvement.
Its like R1500 at iStore.
Seems silly. My 17 gets between 6 and 7h sot and last me 2 days. What are you doing that 5.5h sot is not enough?