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iPhone 15 Pro Experience with Iphone battery health (15 Pro)

I

iau

macrumors member
Original poster
Feb 24, 2009
33
3
Hi,

My iphone 15 pro from last september was showing 100% battery health and about 270 cycles up intil mid august, when it dropped to 99%. But within two weeks it dropped to 98%. Is it normal that the decrease in battery helath increases when it starts dropping from 100%. Nothing has changed re use and charging since it went from 100% to 99% and always running the latest ios update.

Just curious since I had a similar experience with my 14 Pro which had 100% for 6 months and then fell to 99, 98, 97, 96 with only a month between each drop.

thanks,
Iau
 
Thanks for all replies. I was mostly worried about why the time span between 99% and 98% was so short but I'll see what it says in month or two. ;-)
 
I have noticed that using slower wired charger and limiting to 80% has resulted in 99% battery health after 1 year.
Now the new iOS allows 90% charge, I have increased it to 90% but still not using fast charger or wireless (due to heat degrading battery health)

I do use fast wired charger if needed during the that but my usual practice is night time wired slower charger.
 
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Well, since sept 11 it has continued to drop. Now it's been at 96% for a week. I don't understand why the "increaseing decrease" is happening. I guess the first 270 cycles are at 100%, but then every 10 circle is another drop in percent. Now at 306 cycles and 96%.

No big crisis, but strange. I guess Apple just want me to buy a new phone after a year;-)
 
My 15PM dropped about 5% in the first 9 months, and then dropped another 5% in the last 3 months. Not sure why. I charge my phone daily to 100% using wired charger.
 
NotApplicable said:
My 15PM is at 82% with 260 cycles. So you’re doing well.
Click to expand...
That’s abnormal. mine has nearly 350 cycles and the health is at 97%. Is yours constantly under high temperature or wireless charging? Or both?

Mine is always charged wired (on a ’fast’ charger)and set to limit to 80% during weekdays when I’m at office plugged in.
During weekends, when I need the battery life, I release it to 100% (or 95% now since iOS 18)
 
haruhiko said:
That’s abnormal. mine has nearly 350 cycles and the health is at 97%. Is yours constantly under high temperature or wireless charging? Or both?

Mine is always charged wired (on a ’fast’ charger)and set to limit to 80% during weekdays when I’m at office plugged in.
During weekends, when I need the battery life, I release it to 100% (or 95% now since iOS 18)
Click to expand...
No, just charged every night to 100% with optimized turned on. Not a gamer or anything
 
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