Maximum Capacity is at 98% in less than 2 months on iPhone 16 Pro

I have an iPhone 16 Pro Max and have been using it since release day. I have the Always on Display enabled and I try to keep it between 95% and 15% as much as possible, but sometimes I let it charge the whole way up overnight and once I accidentally let it completely die while working. I’m actually surprised it’s held up this well so long. Its 100% capacity has lasted longer than any prior iPhone from my personal experience. There definitely seems to be some luck of the draw involved, though.

16ProMax

92 charge cycles and a 100% battery capacity, this device is ready to go.

Charge it all the way 80+ w/o Disconnecting charger. Keep minimum cycles possible. When you charge Max it Out.

Im using 30W Charger.

Disable Clean charging

Enable Optimized Battery Charging.

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Doesn't sound like it's dropping to drastically to be considered defective but that's still going down pretty quick. Do you turn off your background app refresh for apps you don't need updated unless you check them yourself? I'm at 122 cycles on my 16 pro max and still at 100% health I use a 45watt anker block and oem c to c cable. Maybe have Apple run a diag on it.

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always on low power mode, charging capped at 80% and I use my phone pretty light, ~3 hours a day max.

This is my battery Health im charging up to max 80% Thats all so u can abuse the battery just not charge to 100% li-on batteries are just not made to be charged to their maximum capacity apple uses it as marketing strategy but the battery won’t last that long just carry a high speed charger is everything I used its 35w

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Recalibration of your battery will only happen when the phone is allowed to charge to 100%. Even when using the 80% limit, the phone will automatically charge to 100% to perform this calibration and if you manually prevent that from happening, then the battery will not calibrate and remain at it's previous Maximum Capacity.

Once you allow the phone to charge to 100% through several cycle as it will automatically do when using the 80% limit, then you will see a larger than expected drop to reflect that actual state of your battery. The number you see for Maximum Capacity is just what was determined when it gets calibrated, it does not mean you instantly see a drop in performance when it shows 98% after it has been calibrated. It could remain at 100% forever without any calibration occurring and that does not mean you are going to have the same performance as if it was brand new. Eventually you will see a message that the Maximum Capacity cannot be determined because the battery has not been calibrated.

You might not be aware of this, but even if you have the phone set for 80% Charge, the battery is still going to charge to 100% on occasion, and you will not be able to control this.

When I tried Charge Limits, I found that the battery still charged to 100% two to three times a month on average.

Here is the info from the Apple Support document:

Iphone 16 Plus

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Sebas7979 wrote:

I got a 16 pro max I only charge my phone to 80% and battery health still 100%

https://discussions.apple.com/content/attachment/f8698704-20ec-432f-af22-518dcf91ae2e

Your health will most assuredly decline though. And running the phone lower than 20% as your screenshot shows will age the battery faster than charging it to 100%.

if you have a moderate use then set your phone’s charge limit between 80%-90%. I got my phone in Dec’24 I have done that and as on today in Aug’25 (after 8 months of use) my battery’s max capacity is 99%.

The reason it works is, Li-ion batteries charge easily & fast upto 80%, after that each %further the battery is charged, the li-ion cells have to work much harder to charge themselves up. As a result your battery’s life declines faster.

mkhairul wrote:

Is same here, got mine in Dec'24 today as a result 25/08/2025 my battery cap is drop 1% which is 99% now after 8 months of use...

That's FANTASTIC! You've only lost 1% in battery health in 8 months? Count your blessings!

Please tell are you using original cable for charging ? becouse i have also faced same issue but, unfortunately i had used fake cable thats why i have faced this issue. so i replaced my cable with original one now.

You can expect a decrease in battery health of 1-2 percent each month through normal use. On average, 1 percent for every 25 cycles. That puts you at 98 percent. Totally normal.