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adamlbiscuit

macrumors 6502a
Sep 22, 2008
602
1,402
South Yorkshire, UK
Here's my launch day 15 Pro Max:

IMG_1103.PNG



I have other devices so that's probably why the cycle count is low-ish - battery usage is spread out across them all.
 
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daneoni

macrumors G4
Mar 24, 2006
11,826
1,561
IMG_9394.PNG

My MBP on the other hand is not doing great. Because optimised charging on Mac OS seems clueless and utterly useless

Screenshot 2024-03-16 at 12.32.36 PM.png
 

MacCheetah3

macrumors 68020
Nov 14, 2003
2,267
1,206
Central MN
Battery Health: Normal
Maximum Capacity: 100% (started at ~103%, now ~102% via coconutBattery, calibrate often)
Cycle Count: 45
Manufacture Date: July 2023
First Use: October 2023

15PM
Cycle count 35, charge to 80% enabled.
Battery health 98%.... wtf?

Battery was made and first used in November 2023
Something seems wrong there... Are you using beta software? try doing a reboot and see if that updates it.
Probably/Possibly just wasn’t fortunate enough to receive an iPhone with a battery that was above design capacity.
 
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Lakris

macrumors member
Sep 6, 2020
94
63
Norway
15pro
99% battery health
49 cycles
purchased December
optimised charging on

Mostly charged at home from about 25%-100% with apple MagSafe, sometimes charged at work with the 20w charger and sometimes charged just up to 60-80% when I'm on the go.
 

amitabhbansal

macrumors 6502
Apr 8, 2011
433
20
Delhi, India
15 Pro Max
Cycle 32
Health 99%
first use October 2023
Optimised Battery Charging
Charging 0-100% with 20W original charger and cable, not overnight charging

is it normal?
 

shadyman

macrumors regular
Jun 9, 2015
232
214
15 PM
Cycles: 28
Health: 100 %

Had it replaced due to weird front camera pictures, but pictures taken with the replacement unit still look the same
 

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iSuzan

macrumors 6502
Oct 21, 2020
295
689
Germany
iPhone 15 Pro

First use October 2023

100% capacity
91 loading cycles

I'm using optimized loading. But apart from that I don't do anything special and don't think about the battery.

I load it every night on Belkin Qi-Charger not matter if the battery is empty or not. Sometimes I also load it on the MagSafe plug during daytime if I want to go out with 100% battery.
I nearly never load it via cable.
 
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Ifti

macrumors 601
Dec 14, 2010
4,023
2,597
UK
15 Pro Max
75 cycles
100% capacity

Manufacture date : July 2023
First Use : September 2023

I do nothing special. I have it set to optimised charging, but since Im so irregular with charging I'm guessing that doesn't have a chance to learn my [lack of] routine.
Charging wired with an Apple 20w adapter.
I just charge when it's around 20%, and then remove from charging when it's at around 80-90%. On the odd occasion I take it up to 100% but do not let it sit there.
 

James6s

macrumors 65816
Sep 22, 2015
1,015
1,942
Cumbria, UK
15 Pro Max
Cycle 32
Health 99%
first use October 2023
Optimised Battery Charging
Charging 0-100% with 20W original charger and cable, not overnight charging

is it normal?
Always charging from 0-100% is probably the worst case scenario to deplete battery health, but you can’t always be charging from 0-100% with only 32 cycles from October?

There are people with 100% BH with 100-200+ charge cycles. Their devices will have had a higher max capacity from the factory, like starting with 105%+ so they will take longer to get to 99% BH.

I think the 15 Pro’s are rated at 3274mah. My 15 Pro real battery stats show that my device had a max capacity of 3366mh, iOS will only start showing drops below 100% once it goes below 3274mah.
 

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Kobs

macrumors member
Sep 15, 2022
80
151
Iphone 15 Promax since launch, IOS 17.4 36 cicles, 99% Maximum capacity on IOS, Coconut battery shows 4510 mAh and 102% Health. Macbook Air M1 macOs Sonoma 14.4 100% Maximum capacity and Coconut battery shows 96% full charge capacity, what is happening?
 

MacCheetah3

macrumors 68020
Nov 14, 2003
2,267
1,206
Central MN
95% now 💩
Apple’s expectation/guarantee is the battery should be able to retain 80% up to 1000 cycles — it has doubled in the 15 series. The numbers indicate you’re needing to fully recharge the battery at least once per day, on average, which probably falls under the ‘heavy user” column. The shorter answer is the battery should last two years before hitting the recommended replacement threshold.

The longer answer:

242 cycles / 180 days (since 15 series launch) = ~1.34 cycles per day

1000 cycles / 1.34 cycles per day = ~746 days

And if we do a linear projection via percentage loss

100 percent - 80 percent (target) = 20 percent, 5 percent (loss) / 20 percent (target) = 1/4

1/4 * 4 = 1 (whole), then multiply the other side by the same, 180 days * 4 = 720 days

However, battery degradation is not linear; the capacity will drop a little quicker at first, the endurance will level off (for the most part), then plummet.

Not iPhone test results but here’s a fair representation of capacity to usage:

 

MarkX

macrumors 65816
Sep 10, 2015
1,191
1,485
Fochabers, Scotland
15 pro

Used since launch and I have no idea how many charging cycles it has had!

I've more to be concerned about than if I've lost a x amount of percentage battery health in so many months.

Ill be replacing it come September and it will easily last until then.

I wish they'd remove the battery health setting in all honesty, it seems every day there is someone asking about this. That's just me though
 
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