13 pro max battery showing 99% after two month

""""""""""""""""""""" So: """"""""""""""""""""""

1) Before a person can tell that the battery is perfect he should at least know how many charge cycles the battery has;

2) It is normal for the batteries to wear out: there is no need to repeat it;

3) The new iPhone batteries never have 100% charge but more ... +/- 101%, 102%, 103% testing with a dedicated battery testing tool or with software like iMazing or Coconutbattery: same results;

4) I had previously posted that my iPhone 13 Pro Max had shown a 96% battery health but in actuality was 103% health checked with a dedicated battery testing tool or with software like iMazing or Coconutbattery;

5) The battery health of my iPhone 13 Pro Max had reached:

- 99% after the first 25 charge cycles

- Then 98% after another 5 charge cycles

- Then 97% after another 5 charge cycles

- Then 96% after another 5 charge cycles

And now after several weeks is stable at 96% and in the next few days I will post the actual cycles using a battery testing tool and iMazing;

6) we disassembled a lot of batteries and tested with a dedicated battery tool and the state of health was 102%, 103%.

7) iPhone 11 Pro and iPhone 11 pro max had the same battery health problem and received an update to recalibrate the battery health.

8) Several iPhone 13 Pro Max after 1 year still have 100% battery health (is this clear?):

so it is not true that (as some person continue to say) the average decline in battery health is about 1% a month.

And to prove this, just need to search in several very technical online platforms (videos);

Also: Some batteries can be defective and others can be perfect: for sure mine is defective;

9) I never wrote that we have taken apart and repaired more phones than a person might have in his life...ehm...for sure;

[Edited by Moderator]

Eliabbas wrote:

I know this bruh ! But 1% drop in just 6 days is very disturbing

But how long before that did it drop at all? Decline in battery health is not linear. It may stay the same for weeks or months then drop a couple of percentage points.

and i use 5w charger!

my brightness is always at 0 I never let my phone get head up

See here for charging advice:

When to charge your iPhone or iPad - Apple Community

Stop worrying. On average, the Battery Health will drop about 1% a month. That's a average, not an absolute. The battery might stay at 97 for 3 months, then drop to 94, for example.

A drop of 1-2% per month is normal, so dropping to 97% after one year is excellent.

Good analysis. Keep in mind that a battery is a chemical device, and chemistry is generally pretty variable and uncertain, as well as being analog, not digital. Apple specs the battery capacity to remain above 80% for 500 full charge cycles, but that is a minimum requirement; there is no published maximum expected capacity. So sometimes batteries will perform much better than that minimum specification, and sometimes the change in maximum capacity won't be linear. 

GiDev wrote:

Several my friends have iPhone 13 Pro Max 256gb from 11 months with 99%:

As I have no personal knowledge of these people or their phones, I cannot comment. What I can tell you is that I worked for Verizon Wireless (major U.S. carrier) for 20 years, part of that running a service department. I've looked at more phones than you every will. It's normal. What you allege your friends are seeing is not normal.

How can be explain this?

It is not 1% for every month.

Please look up the statistical concept of "average"

Basically a lot of people are tired to accept that this situation is normal:

Basically, a lot of people what batteries not to be consumables. They become obsessed with "managing" the health of their batteries.

It is not normal.

Again, yes, it is.

Infact I check regularly the battery circles using iMazing on my Mac or Win.

So?

It's just an estimate.

The important thing to remember is if it falls below 80% in less than twelve months, Apple will replace it free under warranty.

If you are charging overnight the 5W charger is all you need; the phone will reach full charge by morning. But either one is safe to use. Enable Optimized Battery Charging, and consider enabling automatic iCloud backups so your phone will back up overnight, every night it is plugged in.

98% after 6months. I changed my charging method, before I did 30%-80% for 1month then the battery health drop to 99% and I tried to charge it at 20%-100% after 5months my battery health is 98%

So, i think much better to charge it when it drops to 20%

Waiting until your battery drops to 20% does not make your phone charge better, only slower, and it uses more of your charge cycles. See these two support documents from Apple about batteries, charging, and maximizing battery life.

iPhone Battery and Performance - Apple Support

Batteries - Maximizing Performance - Apple

I use the standard 5W charger and plug in every night. I use the optimized battery charging feature in settings and right now, at just over a year of daily use, I’m at 100% battery health. I believe faster charging takes a toll on the battery itself.

Please tell me how you charge your phone.

Use apple fast charger at night until morning. Optimized battery charging on

Either of the power adapters is fine. The 20w will provide rapid charge. See this about taking care of your battery. Batteries - Maximizing Performance - Apple There is no problem with overnight charging, make sure that you have Optimized Battery Charging turned on.

It is so normal that iMazing shows that battery health is 103.0% (as you can see in screenshot attached) instead of 96% as show the my iphone 13 Pro Max.

I trust iMazing a lot and it is very accurate by calculating even the first decimal of the values.

I have all the statistics since i activated the iphone in february and I prefer investigate things.....

I hope that Apple will release a software update that recalibrates the percentage of health health as happened for the iphone 11 pro and 11 pro max.

Suggestion: try to use iMazing or Coconut battery.

That’s pretty good… Mine is at 90% after 10mths.. so average about 1% every 2weeks.

Fan boys here say that’s perfectly normal just because cause Apple says that is normal so we should just accept it…lol