How to Check the REAL Battery Health of your iPhone! 

Hi, Daniel. I appreciate the video, but I have to say - your method of estimating the iPhone's battery health is incorrect. First of all, Apple's promise that the iPhone's battery will retain at least 80% of its design capacity after 500 cycles does NOT mean the iPhone's battery capacity will certainly reduce to 80% at that point. It simply gives you the worst-case scenario. Smartphones to date use lithium-ion batteries. A lithium-ion battery's health largely depends on how you use it. If you use it too aggressively (e.g., frequently discharge it to very low percentages and/or charge it to full and keep it full for a long time, fast-charge it often, etc.), it will degrade faster. If you use it "gently" (e.g., never let the battery percentage go too low, always use a slow charger to prevent elevating the battery's temperature much, use iPhone's "optimized charging" feature, etc.), even after 500 cycles, it could still be at 95% or higher. Second, the reason that your phone's battery is still showing 100% after 121 cycles simply means that it's still at or above its design capacity. How's that possible, you may ask? That is because lithium-ion batteries in smartphones, laptops, even electric vehicles typically have 2-5% extra capacity as a buffer, which is hidden to the users. Yes, your phone may have lost say, 3% of its initial capacity, but what is remaining could still be above the design capacity. That's why it says its battery health is still at 100%. Bigger iPhones, such as iPhone 13 Pro max and 14 Pro max, usually fare better than their smaller variants, because: (1) their larger batteries allow them to retain a higher percentage at the end of every day, and (2) they go through fewer charge cycles after the same amount of usage by the user, both of which are good for the battery health. I observed this first hand with my previous iPhones. I consider myself a very "gentle" battery user and never fast charge my phones. :) My iPhone 12 Pro's battery health was at 92% after a year because I usually ended the day at ~30%, but my iPhone 13 Pro Max was still at 100% health after 12 months because its battery almost never fell below 50% when I went to sleep at night. I hope this makes sense.

How did you come up with the formula please? Why are we multiplying by 20?

The operating system running in it works dynamically. This is something that will vary from user to user. Whatever the life cycle is, what you do with the phone is more important.

I will try that soon. Thank you for the infos😊

First time am watching a video that is not click bait thanks man ❤❤🤞🏾💯

As a shop. I calculate the cycle by 5% each year and normally 20% gone means your battery is ready for service so each 5% lost from 100% it means you lost 25 percent of your battery, 5% x4 = 20 take that out from 100 and you have 80% battery left and Apple will say Service in the settings/battery/battery max capacity. Which means each 5% is 125 cycles and 20% gone from battery, means 500 cycles are gone. I haven't seen your calculation in the description Daniel but I will go ahead and check now. This is how i calculated previously :).

Super Easy Huh...!!! You Explained it for almost 4 Minutes plus the computations needed.

Very informative. Thank you

If you keep your phone in the load range of 20-80%, you will reduce the battery wear to a minimum, as long as you do not overheat your battery. You can overheat your battery by fast charging, other than MacSafe charging, where the phone and charger keeps an eye on battery temperature and stops charging, if your iPhone battery gets too hot, Forthermore, remove your phone from case for charging, don't leave it in the sun or in a hot car and stop gaming if the phone throttles and dims the screen. Charge your phone at a time of day, where your can keep an eye on the battery load, so you can stop charging at 80%. Then your battery will last much longer.

I can’t find the analytics under data as well

Nice! Very informative!!! My Iphone 13 mini has 141 cycle. More or less it still has 95% batt health.

cycles are an average value to represent approximate wear life and this depends on many things. Full and partial charge cycles, what charger and at what temperature. many variables. so the measurement from the capacity will be more accurate because the number of cycles alone does not determine the degradation of the battery value. it has no effect on it.

Every time I try to do mine, it freezes on me. I have to basically clear it and star over. I’ve done it three times and all three times it has froze on me like my phone doesn’t want me to do it. so unfortunately I guess it’s not working for me but cool video you do good work I watch all of your videos all the time.

This could be much simpler, shorter, and less redundant but it’s very helpful.

hi!! i have 2 strings for every day ...!! if I analyze them with battery stats, in a string 81% comes out in another 76% !! what is the one I need to refer to?

Amazing that even never having entered this channel, this video or having ever heard or seen this guy I am 100% confident he’s Brazilian judging by that accent that I’m able to recognize because I am Brazilian and am a good accent spotter. That said this video is awesome. I had no clue about this. Thanks a lot.

946 for my day one XS MAX until yesterday. it is at 85%. never game, never heavy user. not too bad for 4 years and half. got a new iphone12, everything feels as snappy, nothing major in terms of performance for daily tasks. damn, this is awesome.

Hi. I pumped into a wall on my iPhone, I can't create new home screens, no more! I have an XS running iOS 16. I used to create new home screens by simply holding a jiggling app icon and moving it to the right where a new page opens automatically in a hassle-free way. But this thing is no more applicable. I reached out to Apple support, and they suggested useless solutions such as hard-restarting the phone or updating the software (which is already up to date). So I decided to troubleshoot the problem myself since no one is helping! Hence, I went to settings and tried to reset the home screen settings only, but my bad :( I forgot to save screenshots of the old order of the apps! At the moment, I'm struggling with the no more home screens problem, and the stupid new order of my apps which is really frustrating 😮‍💨 Any idea please on how I can get back to my previous app icons' order? or the no new home screens thing?

You are genius bro.. tq so much for the tutorial.. I’ll definitely following you after watching this video..

Am at 821 cycles and still have 96 capacity , and on my other Xr was at 121 cycles with 95 , it depends how u use and charge ur phone Thanks

Depends a lot on how you charge your phone, I have kept the 100% with more than 300 cycles by charging between 40-80%

Thank you a lot. it was quite clear.

I have multiple Analytics in Data.. Analytics Daily, Analytics Journal Daily, Analytics Never… which one should I use?

Your (battery cycle count × 20) / 500 is the same as your (battery cycle count / 25). Is there any reason for doing it 'your way' aside from possibly appearing more complex? Genuine question. Thank you.

Great info, thank you

hello Daniel I am seeing panic log in my Analytics i have free 20GB in my iphone 11 iOS 16.2 sometimes it will freez then restart? any advice thanks

I have been charging the iPhone Xr 12V with a charger for 1.5 years, did not allow the lowest battery level and did not always charge up to 100 percent - during this time the battery decreased from 88 to 87 percent of capacity.

Bro explain better, I went to my note app and paste the item I copied from the settings then typed lastvaluecycle underscored but it’s showing no matches😢 what can I do, it’s an iPhone 6s😢

With my iP13 (which I bought at november 2021) I have exactly 250 cycles, so I have 90% capacity right now. Btw. mostly with Apple 5W charger from my SE 2016 :D

Doesn’t work for on 13PM. I put it in notes and searched last value but every time I try to put in cycle and I type c then the next letter then the search goes blank. Bummer.

Thank you 😊 so much for your information ℹ️ 😊

There is no analytics data in my i phone

Thank you very much. This is very useful.

Same thing can be said about those 500 cycles. Its not an exact math. It depends on other factors: fast charge, normal charge, wireless charge, the amount of charge, the amount of discharge, etc

Daneil you are genious bro just put out these values from the hell out :)

Purchased new (replacement) phone online while out of town. Battery health said 100%. After several months, battery health still says 100%. I tried your note trick but it did not work for me. Perhaps due to the latest 16.4 update

I have a iPhone 14 pro max and I don’t see the analytics file at all, not sure why? But Im also not sharing my analytics with Apple either I have that set to off, could that be the reason?

This only shows you have used 95.16% of the 500. You don't take into account the battery full charge capacity (FCC) You would need to know the design capacity and the current full charge capacity. Then it would be FCC / Design * 100 = Remaining capacity as a percentage of the design. My MacBook as an example is 7995 (FCC) / 8790 (Design Cap) * 100 = 90.95% after 37 Cycles. Whats also worth noting, is the drop in capacity will happen within the first 6-12 months and start level off slow down after this.

Hi hope everthing is good may you tell me please how do i check the batterie for iphone Xs max ive tried the same steps in the vidéo but it didnt work hope i will get a response from you thank you

Thanx you so much bro , this video really helped ro me for my problems ❤

Also does oem charger affects the battery health percentage of the iphone to decrease so fast?

298 cycles here and still 100%. It all depends on the type of charger (i use a 25 watt Samsung adapter), and when do we charge the phone at 80%, 60% (me around the 40%).

I don’t have any such file 😢😢what to do now Sir ?

this is really something informative bro

I get what you are saying but the reduction in capacity probably isn't a linear function of cycles. It might be ... but I doubt it. I'm at 98% on 99 cycles.

Hi Daniel, I appreciate your efforts on creating this video however the calculation value does not seems to be right for all. As in my example I got 2 values 837 and 399 and when I did the calculation it is showing below 20%

It's 2-25-2023 today, but the latest date in Analytics Data is 11-25-2022 (Analytics-90-day). Why doesn't my phone have up-to-date analytics? Or is indicating it's going BACK 90 days? Is that how it works?

Hi. How did you come up with the formula in the description?

Hi. There is a shorter way. After opening your analytics data, just tap the arrow pointing up on the upper right corner of your screen then add battery stats to your actions. Then press battery stats to get your battery cycles and health percentage

Don't forget consider temperature, charging behavior, age and such factors😬

On my 15 Pro Max and my 11 Pro, I don’t see the analytics option at all, under analytics data. Search doesn’t return any options on analytics or cycle count

How is the calculation done, please?

This method didn’t work on my phone

my cycle is 860 and my battery health is on 83%. but with ur math i got 65,6. so which one should i trust?. should i change my battery or just keep using it?

Thanx a lot 😊

Very smart video. Please more!

Unfortunately cycles doesn’t tell you the whole story. Like if you leave your phone in sun/heat one day it drastically hits on battery health no matter the cycles. Getting 80% from 500 cycles is just a general guide. But that battery health isn’t lying though.

I think there is a mistake, the value to look at is the next to the word, that is, 96, not 121. My phone is proof that after 5 years I have 960 cycles and it's at 82%, and not 300 as you indicated.

Does this means that it’s possible that my displayed BH is lesser than the actual BH percentage?

Does this also work for older iphone like iphone 6 1st gen(2015)

The main problem is that one cannot set a maximum charging limit, like I can in my Tesla. I would like to limit charging to 80-90%

Nice one mate!!! That really helped me to find what is the real battery health percentage of my IPhone 13 Pro Max

Been hearing lots of complaints about 15 Pro models degrading so fast. Mine is 30 cycle counts and shows 98%BH . I tried the formula you provided and and its seems accurate because it turns out 98.8%

Why does last_value_cyclecount show 2 different numbers in analytics? Which is the correct one?

I understand what he is say but not all iPhone batteries are same size the 14 and 14Pro will show lower percentage than the 14Plus and 14Pro Max at the same charge cycle

It is actually real battery health becouse it doesn’t say it must be 80% after 500 charges it sais it cant be lower than that

New sub! I just got my new iPhone XS Max unboxed and activated myself but it’s expired on apple coverage and one thing worries me that there is sticker beside lightning charging plug but model number start with M ends with LLa/A and I did same as u explained but there is only few files from one date which is today but there is not any file by anaylistic name can u please explain? Because last year I bought iPhone 11 second the battery health was 100% but in 2 months from 100% comes down to 76% and after the first 2 months it didn’t drop for 8 months so the real battery health was 76% now I’m worried about this brand new iPhone XS Max I got today but warranty expired it says purchased on 2021

If 17 cycle is my battery then (17*20/500)= 0.68 how does it work then? how much is my battery percentage?

Hi! It is interesting going into the data log of the phone, but please note this is not valid! What you see there is how many times the phone has been charged, however some charging sessions do not count as a full charging cycle on your battery! What I mean by this is that, for example, you charge your phone from 20 to 80%, it will have a lesser effect compared to if you charged it from 10 to 90%, however, the cycle count you show in the data file still increases. This is why this iPhone's battery is at 100% still, because all those 121 charges do not add up to 121 full cycles, which indeed would make your health go to around 95%. Also, do note, many users, me included, report that going from 100% to 99% battery health takes a lot longer than any other dip in percentage. This is because batteries when they are new may have a slightly bigger capacity than that 100% shown in the health tab.

I don’t have analytics files, why?

Apple adapters are available in 5w,12w,20w how can I use them the lesser variants because they have a USB port unlike the 20w with the type C connection (to avoid fast charging). Someone please explain

feels like he just taught me how to jail break. so much steps

bruh its not necessary that the battery gets below 80% after 500 charge cycles its just that apple said that 20% decrease after 500 cycles is a normal thing

I cannot find anything under analytics and data There is no analytics data files in my settings So what is the meaning of that

But can you still know the real battery percentage of the iPhone phone from the Analytics after the phone was reset to factory reset? Will it still show how many times the battery reached its complete charged cycle from the moment the iPhone was first charged or it will give you a different result since the iPhone was set factory reset, like the cycle was somehow refreshed?

Hi denial I saw my maximum capacity in my settings and saw the battery maximum capacity is 86 percent but I went to Apple support app and in showed that my maximum capacity is 87 percent so I am not sure which one is more accurate

New fear unlocked

Wow, thanks. I really got ripped. 😂 my real percentage came out to be 13.04%

Hey! Looks like I do not have NO files marked as Analytics at all. May be I have something switched off.

Thanks for information keep going … just question why did u multiply by 20 !!!

I do not see Analytics in the part where you mentioned. Just a list of other stuff. Perhaps this particular feature has changed since you made this video. For information I am running iOS 16.3.

Hey Daniel, Can you explain why we are multiplying cycle count by 20?

00:36 Very good, keep it up

Does this apply to model number ? I mean can the manipulate the Model number .

That’s to much to do 😂 I’ll just look at the fake number

Hi I have a question I just bought a 2nd hand Iphone Xs 256. Today is the 9th day of my phone. It drops from 99% to 94% batt health. I rarely use it since I use my android phone. What should I do and what advice can u give me?

I don’t have analytics in there? Why? Is it some privacy sharing setting I have to agree?

Its also depends on usage patterns, I use ma phone a lot, too much pressure (right now 13pro max battery health is now 88 ) anything I can do?

For those who wanted to know the calculation: 500÷20= 25 (no. of cycles per % BH) 121÷25=4.86 (%of BH affected) 100-4.86=95.16 (% of BH remaining)

If someone changed my battery, the phone still counts the cycles of the first battery or it will renew the count?

is this the new analytics data? it was log_aggregated before. ez to find cycles just scroll. now i dont see log_aggregated

I have an iPhone 13 Pro Max and I don't have analytics showing at all in the files.

Battery health shows 81% but from your formula I’ve got 72% thanks for the information

My last_value_cycle is 591 so how can I get it ? Could tell me how to count it

Very well explained, Thanks for sharing.

Man forget all other advice. Keep it between 20 and 80 constantly, don't let it get too hot and you're good to go. I have 187 cycles on 14 Pro Max and coconut battery shows 101% still and Apple settings shows 100%. I use a fast charger so doubt this has any impact. Other than that just bloody use it.

I have a cycle of 809 😭 , and my battery health show 83% but with ur formula i got 67.64 . Thank you ❤️

That is just too time consuming, but, thanks for the insight.

I never knew that until now I checked it out I got my new battery changed about 3 days ago

I got 512 cycles in one year so i lost 20 percent currently my battery health is also 80 percent 😅