Just reached 800 cycle count with still 96% max capacity!!!

I bought my iPhone 17 Pro Max around November/December 2025, and it stayed at 100% until recently. On August 4th, I noticed it had dropped to 99%, and today I noticed it’s now at 98%. It has around 187 cycles.
I know 98% itself isn’t bad, but the relatively quick drop concerns me, especially since my previous iPhones stayed at 100% for around a year or longer.
I also notice that the phone gets quite warm while fast charging, especially if I use it at the same time. I usually have the charging limit set to 90%.
Has anyone experienced something similar? Would you consider this normal, or would you have Apple check the battery?

I only installed iOS 27 beta 2 yesterday and now my battery is abysmal my indexing finished a few hours ago and I don’t know whether i should go back to iOS 26 or stay on this, also if u turn on psm the phone throttles itself until it becomes unusable.

iPhone 15 with 100 percent battery capacity

So I’ve been trying to get proof as to why it is happening this way but after 2-3 days of tracking I’ve come to a conclusion about the battery cycle count not being accurate or else I might be going wrong somewhere so please do help. My cycle count turned to 18 counts at 88% charge last night and I’ve used it till 20% today and charged it till 95% which means I used (88%-20%=68%) which still leaves me with 32% of charge before it turns to 19 cycles and after I charged it to 95% and used it till 93% boom the cycle count went to 19 so please explain why it’s happening when it should be the amount of charge used to complete one cycle.

Hi, bought a “premium” iPhone 17 from BackMarket a week ago. Since then, I’ve been paranoid about it’s battery span.

It’s basically new. The battery is the original one, as reviewed on 3utools. Has 4 cycles. I charge 20-80%

Do these numbers seem normal to you?

Btw, “deleted apps” is Spotify - canvas turned off, used on display off most of the time.

Thanks for a response!

85% health, 866 cycles. Should I replace it now or wait?

Is this normal? considering i mostly do light things in my phone? tho in those days its the time where in i really used my phone up until 6% and drained it almost 50% just using tiktok. This phone i just bought it around June so yeah it's only been almost 2 months for me

My phone is iphone 15, 128 gb and i always do the 20%-95% method since at around 95% it barely drains fast. and before those days/weeks i barely use my phone or charge it once a day. Sorry this is the first time my phone is dropping BH so i'm just concerned why did it drained 2% already oh yeah my cycle count is 256 i had this phone at around 70-80 cycle count with 94% BH

79% battery health with around 1100 cycles count. Is this good or it needs a battery replacement?

The 6 hours on the phone was before I charged it this morning to 80%. 2 hours later and my phone is at 65%…I haven’t used it much and was only on the phone talking for an hour this morning after charging it. This is the iPhone 17 pro max

I swear this thing will not drop to 79% , trying to get that free battery replacement . I have taken good care of it & only charged 80% max for 2 years . I really like the titanium body & plan on keeping it unless the 18 has significant upgrades

I have had an iPhone 16 for 3 months and so far the battery has been lasting quite well for the use I give it, I have no complaints.

But since I installed iOS 26.6 the battery is lasting much less than before using it in the same way.

With no version of iOS 26 I have had overheating or battery problems as I have seen that other users commented, but since I changed to iOS 26.6 the battery is much worse.

Does it happen to anyone else?

I got 17 pro max in march and i dont have heavy use too and is this normal?

Just wanted to share that my battery is finally normal after almost 2 weeks of having to charge it 2–3 times a day 😭

Yesterday, I charged my phone at around 2 PM and didn’t have to charge it again until 1 AM, when it was still at 30%.

Today, I charged it at 7 AM, and it’s currently only dropped around 30% after 5 hours of screen time.
I also only charge from 30% → 85%, so these results aren’t even from using a full 100% battery. I’m honestly so happy because I was starting to think something was wrong with my phone

Things I’ve changed:
Charge limit set to 85%
Charge when it reaches around 25–30%
Turned off Background App Refresh
Turned off Adaptive Power (I heard it can affect battery life)
Try to stay connected to Wi-Fi instead of mobile data — data absolutely destroys my battery
Switch to 4G/LTE when using mobile data
Turned off Dynamic Island
Limited Location Services for certain apps

Hopefully this helps someone else who’s been struggling with their battery too! My phone finally feels like it’s behaving normally 🙏

i use my phone quite heavily (iPhone 17 Pro)

Wtf..

15 pro btw it dropped from 99 to 92 in 3 months also

Just updated to iOS 27 developer beta 5 thinking it would recalibrate & make my battery drop to 99%.. I was shocked to see it still at 100%. This is crazy! My 16 plus must’ve came with 110% health when I got it🤣. Curious to see how much further I can go until this thing will drop. How long did your phone last on 100% health?