Battery health discrepancy on iPhone 15 Pro Max

What kind of shortcut are you using to see your battery health? Your iPhone only displays the battery health by a whole number, not a decimal. Also third party apps to view your battery health are sometimes inaccurate, and you should only use the battery health in the Settings app. So your battery health probably is still at 100%.

Batteries, like people are individuals. No two people age exactly the same and batteries don’t age the same either. The exact usage, chemical makeup, storage conditions, exposure to heat and cold and about a dozen other factors mean that every battery ages differently. Battery aging is not a linear (straight line) and degrades at different rates as the chemicals in the battery age and other factors mentioned above. Apple expects your battery health to be at 80% after 24 months. If your battery health misses that expectation, contact Apple Support.

Contact Apple for support and service - Apple Support

Please review the Apple Support articles on battery optimization. It contains the best  current practices for battery charging.

iPhone Battery and Performance - Apple Support

Batteries - Maximizing Performance - Apple

About the battery and performance of iPhone 11 and later - Apple Support

Zachyy is correct. There is no native shortcut in iPhone, which displays battery health in decimal points. If you are using a 3rd party app to tell you your battery health, they are notoriously inaccurate and their results cannot be counted on.

No. That is as shortcut to a 3rd party app you've installed on your iPhone. It cannot be counted on to be accurate at all.

You need to stop worrying about Battery Health decline. ALL batteries lose a little health with every charge you do. It is inevitable your batteries health will decline and one day, when it dips to 80%, which it will if you own it long enough, it will then be time to pay Apple to replace the battery. In the meantime, worrying over the natural decline of battery health is a waste of time.

I've looked at third party battery apps in the past and none of them have been all that accurate compared to Apple's readings when I've taken the phone in for testing at an authorized Apple service shop.

Which app are you using? Why would you trust that app's readings over Apple's?

Abdulrahman981 wrote:

hello that is the shortcut i saw some one on youtube use it and said its true battery state

https://discussions.apple.com/content/attachment/789544a9-5ce9-47ed-b36b-ccac8582a1b7

https://discussions.apple.com/content/attachment/9cbbbcd3-605d-4b68-bef7-4b2a8f160461

https://discussions.apple.com/content/attachment/f24d87ff-1f2a-4e6c-b559-241675b2c17b

Be careful what you see online, that is not a source to view your battery health, and is inaccurate.

Abdulrahman981 wrote:

I really appreciate everyone's concern and help.

As I see from everyone's opinion, I should not trust third-party apps and rely entirely on the company’s data. However, my main worry is that the app could be accurate, and what it shows is real. I might be surprised after a month or two to find that the battery health is at 90% after just 20 charges or less.

But it seems there is no way to know for sure except by waiting and seeing what happens.

I truly thank everyone for their cooperation with me.

I can assure you the third party apps are most definitely inaccurate, and are not real. Have a good day.

The issue they seem most concerned about is they are using a 3rd party app, which they enabled as a shortcut, which is showing lower battery health than what Apple shows in Battery Health. Their iPhone shows battery health at 100% after 20 days, which would be normal. The 3rd party app shows it at 98.03%.

I agree with Zachy here. You should only trust the battery health in your Settings, not any third party software.

It may be normal depending on what apps are causing the drain. Please post a screenshot of your battery usage by apps. Here’s mine,

Apples measurements use an algorithm that takes into consideration many factors related to battery health. The third party app is probably doing little more than simple division.