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How to verify installation of a new battery in an iPhone?

A few years ago, when Apple slowed down iPhone clocks to save battery power,I didn’t join the crowd, which is to say, I didn’t replace the iPhone SE’s battery.

My battery charge life is satisfactory because I’m a smartphone battery minimalist, ie relying mostly on native apps and removing them from action (swiping up) when I’m done [1]. There’s no streaming video, and maybe just a few minutes of streaming audio per year. Browsing, emailing and texting less frequently, especially this winter with lockdown.


This winter I was out in the freezing cold and the Apple cell phone battery dropped from 70% to a level that caused the phone to shut down and not start again. This is really frustrating because I do need a data connection to find information and I need a phone to call someone.


Around January, I visited an Apple genius for the first time in my life and asked for a battery replacement. However, since then I have never seen the battery drain so quickly. My usage hasn’t changed. The only explanation is if the iOS update caused more activity at the same time. What a coincidence as this is the only time I’ve replaced the battery in years.

Is there any way to confirm that the battery has actually been replaced?
NOTE: I find that if I don’t turn off the camera or Google Maps, the battery drains very quickly.
steps taken
Technical support performs remote diagnostics to confirm 100%  battery health. I’m not sure what details the diagnostics will generate.
They recommend upgrading to iOS 14.4, which apparently features the iPhone SE’s battery-saving features. I still see noticeable battery drain when the phone is almost always not in use.


The recommended next step is to flash the firmware. Since I don’t want to install something as huge as iTunes on my computer, they said the Apple Store can do that. The Apple Store attempted to do this today (2021-03-14 ), but the process requires a factory reset. I didn’t have time to re-establish my Apple battery environment (including accounts and apps) this weekend, so I decided to install iTunes later and do it myself.


Staff provided helpful advice. While they agreed that deleting apps might help if the phone was barely used, I could also eliminate the risk of unnecessary CPU usage by closing browser tabs. I will do it.
Similarly, using Low Power Mode turns off a lot of background activities that require restarting and just to stretch out the last drop of power. It’s not suitable for normal use, so I’ll disable it (having to re-enable it anyway is inconvenient ).

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iPhone 11 battery health can be fudged to 100% very easily, right?

If you have an old phone and an old battery, is it possible to perform a factory reset so that Settings -> Battery -> iPhone Battery Health shows 100%?
The background/original question text is below this line. Additionally, here is a link to a more detailed question about a treasure trove of advanced data I discovered, as well as a more general electronics question about how to measure cellphone battery  charge and health.


This is another very important background for the iPhone 11. It may indicate that the factory reset trick triggers iOS 14 and later (mine is 16) to recalibrate battery health, which takes “a few weeks” while showing health as 100% with an asterisk footnote, It means the real value will come in a few weeks.
In my shopping mecca of South America, there are

countless iPhones for sale in many stores. They have a certain grade, new in a sealed box, then used, then used. Large collection of original scratch free phones.
But someone was clearly playing a prank. On the surface, Apple iOS 16 should tell us when a non-genuine part replacement has occurred, but there’s a way around it, isn’t there?


Especially the battery life issue. So they sell 100% iPhone batteries and claim these batteries are replacement batteries, but they say the batteries are original from the US, not from China. The whole theme of “China” vs. “America” ​​is important here.
I’m not an Apple iPhone user, but I want to make my girlfriend happy. So I tried to navigate the cliff. Checked there were no non-genuine warnings there, checked the serial number (had returned one to the store and the serial number said “returned”. So now I have one with a clear serial number – not covered by warranty of course).
But I’m doing a battery test. Just check YouTube on the website to see how quickly 100% battery drains. And it goes a little too fast for my taste. After about 2 hours, the battery reached 40%.


When I looked more closely at the 100% battery health information, I read the fine print telling me that it was recalibrating and that it would take weeks instead of days to actually get results. So that tells me they’re playing a trick on me I’m now figuring out how simple this trick is. It looks like every time you do a factory reset, the battery history is lost and the battery health message doesn’t say “Unknown” but “100%”.
Have I been cheated? I feel like I could go back to the store, I don’t know if they will refund me or what I will do with the money, buy a phone with 93% battery life? So do they have other scams ?


Anyway, I need some hard facts to prove them wrong. I’m trying to run some deep discharge and charge cycles to get battery health information for some evaluation. Or should I use some app to get a better assessment faster? They told me I had a 40 day warranty and would hopefully have the issue resolved within the next few days to avoid unnecessary travel.


From an electronics perspective, I find it surprising that we don’t just have an amp meter that just integrates the amps over time for charging and discharging and tells us the instantaneous milliamperes of a discharge-charge cycle time value. vs the Chinese statement is wrong. All iPhone batteries are assembled in China from parts produced in other countries in Southeast Asia. [Some production may be moved to India in the future].


The iPhone 11 is 4 years old, so even if it has the original  iPhone 11 battery and the new battery has not been used, it is long past its prime. For iPhone 11 battery replacement, it always takes some time to calibrate the new battery in the device since you can’t tell its lifespan in a single “snapshot.” In addition to the phone itself, coconut batteries may give you a “second opinion.”


Here’s some hard data on lithium-ion battery life – Battery University – BU-808: How to Extend Lithium-Ion Batteries It’s aimed at the laptop market, but the exact same degradation occurs in iPhone 11 cell phone batteries.

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Why Is My iPhone Battery Draining So Fast? Easy Fixes for iOS 17!

Why is your iPhone battery draining so fast all of a sudden?If your iPhone loses battery faster than you’d like it to or faster than you think is normal, we can help. We’ll answer common iPhone battery drain questions, and walk you through some simple solutions to stop your iPhone battery from dying fast.

Why Is My iPhone Dying Fast after Updating? iOS 17 Battery Drain

Are you wondering why your iPhone battery dies so fast? Is your iPhone losing charge after updating to iOS 17? You’re not alone. iOS update battery drain issues are extremely common and for good reason! A new iOS update drains battery because of the many big changes to your iPhone features that come with installing the most recent iOS software. The larger fall updates, like the iOS 17 update, often affect your iPhone battery more than the smaller updates we see throughout the year.


While some of this is unavoidable, there are certain things you can do to optimize your battery use and cut back on unnecessary iPhone battery drain. We’ll show you some iOS 17 battery–saving tips and offer guidance on how to preserve battery life on your iPhone.
Stop iPhone Battery from Draining Too FastYou’ll want to start by checking your battery health in Settings. Odds are, your iPhone battery is fighting fit, but is being drained by unneeded processes running in the background. We’ll cover some easy solutions to prevent iOS battery drain on your iPhone. Also, if you enjoy learning about how to use your Apple devices, be sure to sign up for our free Tip of the Day. 

1. Check Your iPhone Battery Health Suggestions

This is a good first step whether you’re worried that the iPhone update is draining the battery or not. Your iPhone will recommend specific changes in Settings to preserve iPhone battery life. To see why your iPhone battery is draining faster than it should be, use these steps to check Battery Health suggestions:
Open the Settings app, then scroll down and tap Battery.Tap Battery Health & Charging.
Check your iPhone battery health
On the next screen, your iPhone will suggest changes to settings that will improve battery life. You can tap on each suggestion to jump to the setting that needs changing. If you don’t want to make the change, at least you understand what’s contributing to your battery drain. 
Note: If you don’t see the Battery Life Suggestions section, your iPhone doesn’t currently see any ways to improve battery life via Settings.

However, we’ll have to disagree—there’s almost always a way to fix iPhone battery drain. Continue reading down the list to find more ways to help fix an iPhone battery dying faster than it should

.2. Dim Your iPhone Screen If Your iPhone Keeps Losing Charge

Keeping your iPhone’s screen at full brightness is a likely culprit when your iPhone battery drains fast, but it’s easily remedied. This is actually one of the main causes of battery drain and consumes more power than you might think! Here’s how to dim the screen brightness to save battery on your iPhone:
Open the Control Center by swiping down from the top-right corner of the screen. If your iPhone has a Home button, swipe up from the bottom of the screen instead.Tap and drag the Brightness slider toward the bottom, or as near to the bottom as you can go and still comfortably read your display.
reduce iphone screen brightness in control centerIf you have your iPhone brightness set to a more reasonable level but your Apple Cell Phone battery is draining quickly anyway, there are a lot more options for conserving battery on iPhone. Keep reading!

3. Turn on Auto-Brightness to Stop iPhone Battery Drain

Auto-Brightness settings adjust your screen lighting automatically based on ambient light levels. This keeps your iPhone from losing battery too quickly by wasting it on screen unnecessary brightness. To save battery on your iPhone by enabling Auto-Brightness:
Open the Settings app, then scroll down and tap Accessibility. Tap Display & Text Size.Scroll to the bottom and toggle on Auto-Brightness.

Next, we’ll take a look at some lesser-known settings to help improve iPhone battery life.

4. Turn Off Raise to Wake to Save iPhone Battery

All iPhone models have the Raise to Wake function enabled by default. This might be part of your problem, especially if you pick up your iPhone a lot or walk with it swinging in your hand. The iPhone screen constantly turning on will definitely drain your battery . To turn off Raise to Wake to save iPhone battery life:
Open the Settings app, then scroll down and tap Display & Brightness.Scroll down to Raise to Wake and toggle it off. A gray toggle means Raise to Wake is disabled.

Once you’ve disabled this feature, you just have to tap your iPhone to wake it. Now that we’ve covered brightness settings that help prevent battery drain on iPhone, we can move on to things like apps that drain iPhone battery.


5. Turn Off the Always-On Display If you have an iPhone 14 or iPhone 15, your device has the Always-On Display that keeps your Lock Screen at a certain level of brightness, regardless of whether you’re currently looking at your iPhone. But does the Always-On Display feature drain your battery? Reducing screen brightness in any way will help to preserve your iPhone battery life, so if your iPhone battery is draining faster than you’d like, you should disable the Always-On Display: 

Open the Settings app, then scroll down and tap Display & Brightness. Tap Always-on Display.


Tap the Always-On Display toggle to turn it off (the toggle will be gray when disabled). 
Turn off the Always-On Display feature. 6. Update Apps to Keep Your iPhone Battery from Dying FastApps that need updates kill Apple battery health. iOS update battery drain often has to do with apps. When new software is released, such as the iOS 17 update, developers have to play catch-up too.

Apps that need updates may run inefficiently, or accidentally run operations in a way that’s counterproductive to the way it should be done on the most current iOS software. If you don’t automatically update apps on iPhone, taking the time to update all the available apps on your list could seriously help with iPhone battery drain!

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Beware the Bulging Battery! (And What to Do If Yours Expands)

We’ve been seeing a spate of bulging batteries of late, both in iPhones. A bulging battery is a Very Bad Thing2122 and must be dealt with immediately because it could catch fire or even explode. As lithium-ion batteries age, the chemical reactions that produce power no longer complete fully, resulting in the creation of gasses that can cause the battery to swell. Additionally, manufacturing errors or damage to the membranes that separate the internal layers of the Apple Cell Phone battery  can also lead to swelling.

With Mac laptops, a variety of problems—some rather subtle—can indicate that the internal battery is swelling, including the screen not closing properly, a gap between the upper and lower parts of the case, a failure to sit perfectly flat, clicking problems the trackpad, or keyboard keys malfunctioning.
MacBook 11 won’t close 1024×510


With an iPhone or iPad, a swollen battery is usually obvious because it starts to warp the case and can even crack the screen—it all depends on where the swelling takes place and what part of the device gives way first.
iPhone X broken 1024×488


What to doWhen you discover a bulging battery, unplug the device immediately and turn it off as soon as you can. Continued charging or use could lead to a fire or explosion. However, if the device is still functional and you need to copy data off or let a final backup run, try to put it in a place where it’s less likely to cause problems—on a concrete, stone, or tile surface, for instance, and preferably outside as long as it’s not wet, hot, or in the sun.


In some cases, as with older MacBooks, it’s relatively easy to disassemble the case and remove the battery. If you feel comfortable doing that, you may be able to reduce the chances of further damage. It’s much harder to work on iPhones and iPads.


Make sure you’re somewhere well-ventilated and safe, with easy access to outside and preferably a foam-based fire extinguisher at hand. If a fire does start, water will also put it out—make sure to have plenty on hand. Be sure to wear eye protection and gloves. Also, make sure you have somewhere safe to store the battery once removed, such as a metal can with a lid or with sand in it. Finally, be super careful around the battery, and whatever you do , do not puncture the swollen cell—some of the gases could be harmful.


Once you’ve removed the Apple  Cell Phone batteryfrom the device, you must take it somewhere for recycling. Under no circumstances should you send it via the mail or put it in the regular garbage. Although various companies—including Apple, Best Buy, Home Depot, and Lowes —recycle batteries, call your local store first to see if they take swollen batteries (they may not be equipped to do so safely).

Better yet, check with your county or municipality to see where you should take hazardous waste. 
For additional details and advice, see iFixit’s guide and the many comments.
Getting Your Device FixedThe best-case scenario is that you have AppleCare+ on the device such that Apple will fix it for you. However, that’s a bit unlikely because batteries usually bulge only on older devices.

Regardless of AppleCare status,Apple  battery service and recycling, and if you have an Apple Store or Apple Authorized Service Provider nearby, that’s a good option. Independent repair shops can also likely do this work; make sure they have plenty of experience with your device and offer a warranty for their parts and labor.Although it’s possible to  iPhones replace batteries yourself—refer to the iFixit site for instructions and links to replacement batteries—it can be finicky work, particularly in iPhones and iPads, and you may not save that much money in the end.


Sadly, particularly with an older iPhone, the damage from the bulging battery may prevent a repair from being worthwhile. The iPhone X pictured above still worked fine even though the swollen battery broke its screen, but it wasn’t worth the money to replace the battery and the screen for a 4-year-old iPhone x battery.In such cases, recycle the entire unit with the appropriate hazardous waste facility.

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30 Fixes to Instantly Stop Your iPhone Battery from Draining Fast

Many Apple users may have such a confusion that why is my phone battery dying so fast.
Here’re all the methods and tips for reducing your iPhone batterydraining quickly.
So, Why Is Your iPhone Battery Dying So Fast?

Your battery drains fast because of either a hardware problem or a software problem.
Since fixing software issues is the most manageable and most likely to be the problem, we’ll start there. If the software fixes don’t work, we’ll explore hardware options to address the issue of your iPhone battery draining quickly.
If you updated iOS, wait for the next version to fix the issue.
Wait a few days after the release of the new version of iPhone before updating it. This will allow you to see how other iPhones are performing with the update.


I’m offering this advice after I decimated my beloved iPhone 4 with an update back in 2011. Small bugs can have a significant impact on your user experience. They can make you feel frustrated and tempted to throw your phone against the wall. However, I have never actually done that.


iPhone Battery Draining Checks1. Check Your iPhone Battery HealthAfter the iOS 13 update, Apple introduced several ways to check your iPhone’s health, including its overall capacity and performance.
To check your iPhone battery health, go to Settings – Battery – Battery Health.
Check battery health to find out why your iphone battery is draining fast
Here you can check two main sections: Maximum Capacity and Peak Performance Capability.
Ideally, your Maximum Capacity should be above 80%. Once it gets below that, you’ll start experiencing lag and unexpected shutdowns just when you’ve discovered Cyan is the imposter.


Peak Performance Capability tells you if your battery is experiencing any problems.
If you see statements such as:
‘Your battery is currently supporting normal peak performance’ or
Software and hardware systems in your iPhone will counter performance impacts caused by battery aging.
Then you’re good as gold.
Other notices, such as:


‘This iPhone has experienced an unexpected shutdown because the battery was unable to deliver the necessary peak power.’
And
‘Your battery’s health is significantly degraded. An Apple Authorized Service Provider can Apple replace the batteryto restore full performance and capacity.’
mean you might be in trouble battery-wise and might consider replacing your battery.
Bonus Tip: Turn On Optimized Battery Charging
The function learns your phone usage patterns. It charges the phone above 80% during those times. This helps protect the battery from aging.
Optimized battery charging to stop your iphone battery from draining fast
2. Is Your iPhone Charging Properly?

To check to see when your iPhone is charging, go to General – Battery and scroll down to reach the graph.
A bad charge might be causing your iphone battery to drain fast
See your battery levels, last charge time, duration, and app activity throughout the day.
The green hatch marks shows when the iPhone is charging. If your device is charging properly, you should see the battery level rise within the hatch marks. If this is not happening, check your charger and charging cable for faults and foreign stuff that might affect functionality.


3. Are There Apps Draining Your iPhone Battery?

If you scroll further down you’ll see Activity. This measures when and how you’re using your device. Specifically, which apps are running in the background.
If your iPhone battery is draining quickly because of certain apps, there may be a problem with those apps. You will need to find out why this is happening.
If a new app drains your iPhone battery, delete it until developers release an update.


Are your apps making your iphone battery drain fast?
Ways to Reduce iPhone Battery Drain4. Disable Background App RefreshIf you suspect an app, disable Background App Refresh to see if it’s trustworthy. Most apps run in the background and fetch new data.
To save battery, go to Settings, then General, then Background App Refresh, and disable the app/apps you don’t want running.
Stop background app fresh to keep your iphone battery from draining fast
You can stop all apps from refreshing in the background. Alternatively, you can choose to stop only the ones that are draining your iPhone battery. This will prevent your battery from losing charge quickly. Turning off Background Refresh won’t affect your app notifications.


You can also turn Background Refresh off completely, or set it to WLAN only, saving you data and some battery.
5. Stop Using Non-MFi Cables and ChargersMFi or ‘Made for iPhone, iPod, or iPad’ is a licensing program that allows third-party companies to make accessories for Apple devices. Many people don’t care, but fake versions can harm your battery and cause your  iPhone battery to drain quickly. Even if you don’t use a MFi cable or charger, make sure you purchase from reliable brands.
6. Change Location ServicesLocation Services allow specific apps to track your locationtion in order to provide you with the most relevant information. You should consider keeping this on for Maps, but you can change most other apps to ‘While using the app’.


Go to Settings – Privacy – Location Services.
Change your location service settings to stop your iphone battery from draining fast
Scroll down to see all the apps that allow for location access.
Tap to change the permissions of each.
You can turn on or off Precise Location for apps that don’t require your exact whereabouts, which can be quite unsettling.


Turn off precise locations for apps to prevent your iphone battery draining fast
7. Update Your AppsIf you don’t have automatic updates for your apps, you have to update them yourself when a new version is released. Making sure all your apps are up to date can severely reduce how quickly your iPhone battery drains.
Update all your apps to keep your iphone battery from draining fast

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The iPhone gets its first Apple-made battery case. Would you buy it?

Apple has released a battery case that fits both the iPhone 6 and iPhone 6s. The move is unprecedented for Apple, which has been sticking firmly to the thin design for its smartphones. Producing a battery case means that they admit a legitimate need to supplement the capacity of their smartphone’s original battery. Let’s have a closer look at the battery case and see what Apple is offering to their customers:
The iPhone 6s Smart BatteryCase breaks Apple thin designApple has shunned until now the calls for bigger batteries, sticking to its guns on the slick design of its iPhone. In fact, every new iPhone has been thinner than its predecessor which showed marvelous engineering put to work for impressive looks.


With this background, it is surprising that Apple made such a fork in the road and is pushing a product that will make its flagship smartphone thicker.
First of all the battery case is meant for iPhone 6 and iPhone 6s. The name of the product in the online Apple shop indicates iPhone 6s (iPhone 6s Smart Battery Case), but don’t let this fool you. A few lines below in the description, Apple clarifies that the product is fully supported for iPhone 6 too.


A battery case that fits your iPhone like a gloveThere are plenty of battery cases for iPhones, made by third-party vendors. Apple’s version features only a 1,877 mAh charge, which is not that impressive given that you can find battery cases like this one from Diskin that offer 3,050 mAh. What Apple offers that sets this battery case apart is a very good integration with iPhone’s hardware and software:


The charging of the case is done through a Lightning connector which means you don’t need a separate charger for the case. Many battery cases from other vendors charge though a micro USB connector. Another plus is that the smartphone and the case both charge when the Lightning connector is fitted to the case. One minus is that the battery case starts charging your iPhone immediately as you connect it, even if the phone is fully charged.

The case has a mic and a speaker, as it covers the original iPhone ones. An added benefit is the speaker is front facing which makes for better audio.

The software becomes aware of the battery case when connected and it shows the phone and the case batteries separately, how much each one has left and the charging sign when connected to the charger.

The materials are superior quality including a microfiber lining that protects the iPhone. The battery itself though sticks out in the case and creates a bulge on the back of the phone. You have to wonder whether a thicker design of the iPhone 6 or 6s on its entire surface would not have been the better option.You have to check the headphones connection. The case provides a canal that allows connecting directly to the iPhone. The canal may not be large enough for all headphones connectors.The case of extra iPhone. battery life


Apple stays away from specifying the milliamperes hour for the batteries of its iPhones. This may not be entirely unwarranted because the flat comparison of the capacities of batteries between smartphones can be deceiving. To be fair Apple has produced amazing devices that manage to do more with even less battery capacity. Case in point is iPhone 6 which has a smaller battery than iPhone 5 yet manages to last longer in use. iPhone 6s shrinks the battery capacity even more.
Having said that, the listing of hours of use, which is what Apple does in the specs for iPhone 6 and 6s, is equally deceiving. The performance listed for each type of use (like Internet, talk time, video playback) does not reflect real life use.


If you decide now on buying an iPhone 6 or 6s, the real life use tests put the usage time of a full battery charge at around 7 and a half hours. Of course this is an average and actual use can vary significantly by individual case. Video playback can last 11 hours while playing games can run down the battery in 3 and a half hours. If you own one, you already know best how much you can rely on the battery of your iPhone.


The battery case adds 80% to the usage time. The case has a bigger battery than the iPhone, but the transfer of energy is never perfect from a battery case. It makes sense to use it if you are a heavy user and cannot make it to the evening with one full battery charge or if you want to have the peace of mind that a backup is available when you skip the nightly charge.

Which iPhone battery case do you use?

I’m sure that many iPhone owners already have a battery case. If you do too, let us know which case you are using. Is it better than the one made by Apple? And what do you think of Apple’s batterycase? Would you buy it?

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How to turn on 80% charging limit on the iPhone 15 to save battery health

Apple may have just fixed its biggest iPhone battery problem, and iPhone 15 users get first dibs. Here’s how and when to use it.

The iPhone 15 series is officially available, and whether you already have a device in hand or are anxiously waiting for one, a recent feature discovery should be at the top of your initial set-up agenda.
The feature is called “80% Limit” and is hidden within the deeper end of the iPhone 15’s Battery settings. When toggled on, the iPhone will limit its charging capacity to 80% instead of the normal 100%. 


Also: Want the fastest iPhone? Choose this model on this network
While Apple doesn’t actually explain why this feature exists, it’s safe to assume that the charging cap is a direct response to the recent comments about the iPhone 14’s battery degradation. These aren’t fan theories, unfortunately; it’s just the nature of lithium -ion ​​batteries found in iPhones and other devices, with the maximum capacity slowly degrading every time it completes a charge cycle.
Capping the iPhone 15’s charging to 80% reduces the likelihood of battery degradation, though it may not always be in your best interest to have the feature turned on. More on that later.


How to turn on 80% Limit on the iPhone 15

What you’ll need: At the time of writing, 80% Limit is only available on the iPhone 15 series, which includes the iPhone 15, iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro Max. 
Also: Your Apple device may be eligible for a major software update. How to check and download


The feature is clearly not processor-exclusive, as the non-Pro models operate on an A16 Bionic chip versus the A17 Pro on the more expensive iPhones. Therefore, the chances of Apple extending the feature to older models are still likely.
1. Access apple Battery Health & Charging settingsFirst, open up the Settings app and scroll down to the Battery tab. Then, tap on Battery Health & Charging.

iPhone 15 Optimized Charging
2. Toggle on 80% LimitNow tap into Charging Optimization and you’ll be presented with three options: 


Optimized Battery Charging: Prompts the iPhone to trickle charge up to 80% overnight and then tops up to 100% as you’re about to wake up.80% Limit: Caps the charging at 80%. Apple says the iPhone will occasionally charge to 100% in order to maintain a more accurate battery state-of-charge estimate.None: Keeps the iPhone’s charging capabilities flexible.Tap on 80% Limit to turn it on.

While you’re on the  iPhoneBattery Health & Charging screen, you’ll also find the maximum battery capacity of your iPhone, which, if it’s an iPhone 15, should be at 100%. If your device shows a lower value, reach out to Apple support as there may be a potential defect with your battery.
When you should (and when shouldn’t you’t) use 80% LimitYou should use 80% Limit if…


You want to preserve the battery health of your iPhone, whether it be for longevity’s sake or better resale value.You’re able to get through a day of average to high usage without battery concerns. This is mostly the case with the larger iPhone models, iPhone 15 Plus and iPhone 15 Pro Max.You shouldn’t use 80% Limit if…
You’re concerned that iPhone 15 battery 80% battery is not enough for a day’s use. Perhaps you’re traveling and access to power sources is limited or need to use more power-intensive tasks like video capturing, GPS navigation, and gaming.