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Here is mine. 15 Pro Max. Magsafe charge every night to 80%.
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Wow that’s spectacular battery health !
Myself I own a pro max too and I am already at 89% with 384 cycles…
Do you use any kind of battery limit like for example 80% ?
Myself I am using 80% limit lately - less heat producing.
No limits being used but I use wired charging 99% of the time, except when at the gym where I will place the phone on a wireless charger when doing the treadmill or elliptical walker.

I think I was just lucky, my phone had a lot more capacity than most when it was new so it has been able to take more charging cycles.
 
No limits being used but I use wired charging 99% of the time, except when at the gym where I will place the phone on a wireless charger when doing the treadmill or elliptical walker.

I think I was just lucky, my phone had a lot more capacity than most when it was new so it has been able to take more charging cycles.
That’s crazy, as I am using wired charging only and in the beginning I had no limits too…
Now I have 80% and I think it’s better for my battery health, but I am not sure about it if it has any impact at all
 
Here's the battery health for my iPhone 15 Pro Max, purchased November 2024.

Charged nightly to 80%. When it occasionally upcharges to 100%, I will let it get down to 50% before charging it again.

As of August 22, 2025:

Maximum Capacity: 100%
Cycle Count: 76

Manufacture Date: July 2024
First Use: November 2024


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That’s crazy, as I am using wired charging only and in the beginning I had no limits too…
Now I have 80% and I think it’s better for my battery health, but I am not sure about it if it has any impact at all
I don’t think the charging limits help much…I think it may also be more around the temperatures etc…your phone is exposed too, as both extremely cold and hot can also affect battery health overtime.
I live in Johannesburg, South Africa, our winters are not that cold and our summers are hot but not extremely hot.

When I work from the office my phone stays plugged into the charger as I use Stand By screen to keep track of my day (meetings etc…) and the time.
When I work from home same thing on my desk.

When driving the phone is plugged in and sitting in the center console of the car.

I basically let it charge to 100% all the time, to be honest I can probably count on one hand the amount times this phone has been under 50%.
 
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I don’t think the charging limits help much…I think it may also be more around the temperatures etc…your phone is exposed too, as both extremely cold and hot can also affect battery health overtime.
I live in Johannesburg, South Africa, our winters are not that cold and our summers are hot but not extremely hot.

When I work from the office my phone stays plugged into the charger as I use Stand By screen to keep track of my day (meetings etc…) and the time.
When I work from home same thing on my desk.

When driving the phone is plugged in and sitting in the center console of the car.

I basically let it charge to 100% all the time, to be honest I can probably count on one hand the amount times this phone has been under 50%.
Maybe that’s why, I usually let my iPhone fall down to 20-30% and then charge it up to 80% - but 100% I think it stays hot for to long
 
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I don’t think the charging limits help much…I think it may also be more around the temperatures etc…your phone is exposed too, as both extremely cold and hot can also affect battery health overtime.
I live in Johannesburg, South Africa, our winters are not that cold and our summers are hot but not extremely hot.

When I work from the office my phone stays plugged into the charger as I use Stand By screen to keep track of my day (meetings etc…) and the time.
When I work from home same thing on my desk.

When driving the phone is plugged in and sitting in the center console of the car.

I basically let it charge to 100% all the time, to be honest I can probably count on one hand the amount times this phone has been under 50%.
Maybe that’s why, I usually let my iPhone fall down to 20-30% and then charge it up to 80% - but 100% I think it stays hot for to long
Keeping a device at 100% shouldn’t produce much, if any noticeable, heat as it should be a trickle charge just to maintain the level.

However, @Tsepz very first sentence is ironic as their usage (i.e., leaving a battery-equipped device connected to a charger more than not, especially far more than not and for extended periods) is the primary reason for a charge limit. As far as state of charge goes, exercising a battery, whether charging or discharging, is a fair/good thing. They age regardless, see “shelf life.” Because of the chemical reaction nature of how batteries work, they’re okay — again, will still slowly degrade — if left at a charge state of ~50% (+/- 10% ideally). However, sitting at the “extremes,” near 0% or near 100%, for lengthy periods (i.e., typically weeks or months) can/may cause irreversible damage. Therefore, we have the 80% charge limit, a median-ish compromise.

Anyway… Back to temps for a brief:

Avoid extreme ambient temperatures.​

Your device is designed to perform well in a wide range of ambient temperatures, with 62° to 72° F (16° to 22° C) as the ideal comfort zone. It’s especially important to avoid exposing your device to ambient temperatures higher than 95° F (35° C), which can permanently damage battery capacity. That is, your battery won’t power your device as long on a given charge. Charging the device in high ambient temperatures can damage it further. Software may limit charging above 80% when the recommended battery temperatures are exceeded. Even storing a battery in a hot environment can damage it irreversibly. When using your device in a very cold environment, you may notice a decrease in battery life, but this condition is temporary. Once the battery’s temperature returns to its normal operating range, its performance will return to normal as well.

iPhone, iPad, iPod, and Apple Watch Comfort Zone​

iPhone, iPad, iPod, and Apple Watch work best at 32° to 95° F (0° to 35° C) ambient temperatures. Storage temperature: -4° to 113° F (-20° to 45° C).

MacBook Comfort Zone​

MacBook works best at 50° to 95° F (10° to 35° C) ambient temperatures. Storage temperature: -4° to 113° F (-20° to 45° C).
 
Keeping a device at 100% shouldn’t produce much, if any noticeable, heat as it should be a trickle charge just to maintain the level.

However, @Tsepz very first sentence is ironic as their usage (i.e., leaving a battery-equipped device connected to a charger more than not, especially far more than not and for extended periods) is the primary reason for a charge limit. As far as state of charge goes, exercising a battery, whether charging or discharging, is a fair/good thing. They age regardless, see “shelf life.” Because of the chemical reaction nature of how batteries work, they’re okay — again, will still slowly degrade — if left at a charge state of ~50% (+/- 10% ideally). However, sitting at the “extremes,” near 0% or near 100%, for lengthy periods (i.e., typically weeks or months) can/may cause irreversible damage. Therefore, we have the 80% charge limit, a median-ish compromise.

Anyway… Back to temps for a brief:


I honestly think I was just lucky to have higher capacity from the get go , I am actually curious to know what my previous 15 PM would have been if it had not been stolen as I got that phone shortly after launch and treated much the same.

I think some people try bring the battery health situation down to usage too much (which is one of many factors unfortunately), where if you maybe got a phone that is closer to its actual design capacity (let us say the phone was at 102% versus one at 110%) you are bound to see “faster” health loss as the 102% device was closer to 100% health hence you will get some guy coming here 4 months into ownership and crying over hitting 99% sooner than others.
 
iPhone 15 Pro Max
Purchased December 2023 (so approx. 1yr 9mos)
94% Max Capacity
334 Cycles

Here's the battery health for my iPhone 15 Pro Max, purchased November 2024.

Charged nightly to 80%. When it occasionally upcharges to 100%, I will let it get down to 50% before charging it again.

As of August 22, 2025:

Maximum Capacity: 100%
Cycle Count: 76

Manufacture Date: July 2024
First Use: November 2024


View attachment 2539977
Did you buy this new? Interesting you were able to buy it Nov 2024, after the iPhone 16s had already come out... Very few cycles in 10mos!
 
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iPhone 16e still going so strong. After almost 6 months since its release, still on 100% after 147 cycles.

Speaking of which the 17 Pro Max Models will get a massive battery life increase to 5000mah. I don’t know about the 17 Pro but Apple can hopefully put its mah around the iPhone 16e’s number (4005 mah) from 3582mah from the 16 Pro.
 

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iPhone 16e still going so strong. After almost 6 months since its release, still on 100% after 147 cycles.

Speaking of which the 17 Pro Max Models will get a massive battery life increase to 5000mah. I don’t know about the 17 Pro but Apple can hopefully put its mah around the iPhone 16e’s number (4005 mah) from 3582mah from the 16 Pro.
Think this is about the 15 Pro Max phones
 
Think this is about the 15 Pro Max phones

Or more specifically iPhones which support 1000 cycle counts combined with Adaptive Power Mode and Apple Intelligence both on, you will save more power and cycle counts. The only iPhone which has 1000 cycle counts and doesn’t support Apple Intelligence is the 15 compared to the 15 Pro/16/16e ( and USB C/ no action button/ no 3nm chip to name plenty of reasons why the 15 feels like iPhone releasing the iPhone 5/5C because the 15 Pro destroys the 15/14 Pro in every single way especially since the 14 Pro has 500 cycle counts and the 15 Pro has 1000 with support for Adaptive Power Mode
 
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ordered launch day, mostly charged wirelessly overnight.

Max capacity 87%
cycle count: 533
 

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15PM 512
manufactured July 2024
first used August 2024
capacity 88%
cycle count 309

Seems like it's degrading quickly.
Normally it will for some time before sticking to a percentage where it will stay for several months or so before hitting 80%.

I had a SE 2022 which was on 84% capacity for several months and a 13 which was on 87% for several months.

When Adaptive Power Mode comes to iOS 26 it will degrade far less
 
Wow that’s spectacular battery health !
Myself I own a pro max too and I am already at 89% with 384 cycles…
Do you use any kind of battery limit like for example 80% ?
Myself I am using 80% limit lately - less heat producing.
iP 15 Pro Max here. My battery health is 93% with 657 cycles ! First use September 2023 (2 year anniversary coming soon)
Secret is magsafe charging overnight AND using from time to time optimized charging or charge limit to 80%
 
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