Category: Apple Cell Phone battery

The iPhone 15 series is barely out the door, but we’re already hearing tons about the iPhone 16 lineup. Update: January 5, 2024 (05:12 AM ET): We have updated our iPhone 16 series rumor hub to include information on iPhone 16 Pro mockups and the ultrawide camera upgrade.
Apple’s iPhone 15 series is still fairly new right now, but the leaks landscape is far more evolved than what it used to be till a few years back, and thanks to that, we already have a number of iPhone 16 rumors and leaks going around.

Apple made some significant changes to the 2023 iPhone lineup, including the addition of USB-C, the mute-switch-replacing Action Button, Titanium bodies instead of Stainless Steel, Dynamic Island on the non-Pro iPhones, a periscope camera for the Pro Max model, and more. If you’ve been following Apple long enough, you’d know that most of these new features from the iPhone 15 series would most certainly be coming to iPhone 16 models. What’s exclusive to the Pros today would likely trickle down to the non-Pro variants next year. It’s just how Apple does things. With all that and the leaks that we have at hand, here’s what you can expect from the iPhone 16 lineup.
Will there be an iPhone 16 series?

There’s no doubt Apple will launch new iPhones in 2024. The company’s numbered series has been going steady since the iPhone 4. Before that, Apple had the original iPhone and two iPhone 3G models. But ever since the iPhone 4, Apple has been consistent with the numbered naming scheme, and we’re now nearing the iPhone 16 series. The 2024 lineup will mark 18 years of iPhones. Will Apple finally mature enough to open up its walled garden that is iOS? Who knows? But we do have tons of iPhone 16 info to run through. Read on to get the lowdown.What is the most likely iPhone 16 series release date?Apple iPhone 15 Pro lockscreen in handApple iPhone 13:

September 14, 2021Apple iPhone 14: September 7, 2022Apple iPhone 15: September 12, 2023Apple has been launching new iPhones in September since the iPhone 5. Barring the iPhone SE models, September is Apple’s preferred month for flagship announcements. It was only during the pandemic that Apple went off course and launched the iPhone 12 series in October. But if all goes as planned and there are no last-minute manufacturing hitches, the iPhone 16 series should arrive like clockwork in September 2024. It’s too early for even leaked details about a possible iPhone 16 release date, but we’ll update this article as and when we hear anything about it.
What rumored specs and features could the iPhone 16 series have?Apple iPhone 15 Pro Action ButtonDesign, display, and buttonsApple made several notable design changes on the iPhone 15 series, and we expect the company to refine these going forward. We think Apple’s newly launched Action Button will make its way to the non-Pro iPhone 16 models next year. Lending further credence to this possibility, Mark Gurman of Bloomberg claims the Action Button will trickle down to the non-Pro models. As we said earlier, bringing Pro features to base iPhone models is a practice Apple has followed for years. The Dynamic Island on the iPhone 15 and 15 Plus is a prime example of that. So, if you prefer the mute switch over the new button, know that it will most likely disappear for good after the iPhone 16 lineup goes official.

Apple could equip the iPhone 16 series with yet another new button.If one new button wasn’t enough, rumor has it that Apple will equip the iPhone 16 series with yet another button. According to a MacRumors report and Gurman, Apple internally refers to this new button as the “Capture Button.” It is expected to appear on the right side of the device, and Gurman says it could be used to record videos. All-in-all, it looks like the iPhone 16 series may come with as many as five buttons, including the power button, two volume buttons, the Action Button, and the new Capture Button. What’s unclear is if all iPhone 16 models will get this rumored new button or if Apple will again reserve it for the Pro models to make them more premium than the Plus and standard variants.

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Another theory is that Apple could remove all the physical buttons and opt for solid-state buttons for next year’s iPhone 16 Pro models. This feature was heavily expected on the iPhone 15 series but reportedly had to be delayed due to manufacturing issues.
A MacRumors report included mockups of three different iPhone 16 early prototypes, pictured below. The first iPhone 16 prototype, rendered in yellow, featured an iPhone X-style camera pill. It also featured a unified volume rocker that could provide haptic feedback.

iPhone 16 Mockups 1
iPhone 16 Mockups 3The second iPhone 16 prototype, rendered in pink, featured vertically aligned cameras but with separated volume buttons.
The third iPhone 16 prototype, rendered in Midnight Black,  featured vertically aligned cameras, separated volume buttons, but also a larger Action button and a new Capture button.

All three prototypes featured an Action button, indicating that the mute switch could be well on its way out.

There’s also the possibility Apple does nothing at all with the design. In November, Bloomberg’s Mark Gurman reported that the iPhone 16 won’t have any major hardware advances in 2024. It looks like Apple may be focusing more on software this time around

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A dead laptop battery can prevent you from completing your tasks, but what if you cannot get it to charge properly? A flailed battery, an insufficient power supply, or a damaged cord are just a few of the reasons why a battery may fail to charge . Some of the causes are easily resolved if you know exactly what to do. In this article, we will look at the indicators of a bad charging device and how you can get it working again.

6 Signs That It’s Time to Replace Your Laptop BatteryWe have compiled a list of six common signs that you need to replace your notebook battery to help you identify the problem quickly. Although it’s best to consult a specialist to identify your laptop’s problems, you can probably identify the root cause with the help of the following accumulator failure symptoms.

1. Little usage timeIf your ultrabook battery dies much sooner than it used to, this is one of the most obvious signs that it’s time to replace it. Depending on the programs used, a fully charged battery should typically provide power for six hours or longer. If your ultrabook only lasts a couple of hours, the accumulator likely needs to be replaced.
2.Slow chargingIn addition to charging issues, if your notebook charges extremely slowly, this could be a warning sign. A strong laptop accumulator will charge quickly and continue to function even after being unplugged from the charger. If your device is charging slowly, or worse, only charging when plugged in, you may need to replace the battery.

3. Unanticipated power outageMake a record of how frequently your device shuts off on you, even though the odd glitch might not always indicate battery problems. If your Mac or Laptop shuts down unexpectedly, especially after a recent charge, you can probably blame it on a faulty accumulator. Attempt charging your device once more, but if the issue persists, your battery might be permanently discharged.
4. Age of the DeviceDespite the numerous excellent choices out there for both Mac and PC users, no ultrabook is built to last forever. If you are having power problems with your machine, it could simply be due to its age. Notebook batteries typically fail after 1-2 years or around 300-400 cell cycles. Your accumulator may need to be replaced if your notebook is old because it has probably reached the end of its useful life.

5. Overheating issuesMost laptops can reduce internal heat while in use. If your device feels warm to the touch, your battery is probably functioning too hard and cannot adequately cool itself. An overheated device frequently makes noise because its internal fans are running nonstop to keep the device cool . To further prevent damage, always disconnect your machine from charging and stop using it if it is overheating.
6. Warning messages from the systemApart from performance issues, most ultrabooks are already outfitted with technology to monitor their overall health.

When a service is required, Apple Macbook users should expect to receive a warning. To check the functioning of your accumulator, Windows users might think about creating a report One can easily determine whether it’s necessary to change their  Apple Macbook notebook battery based on the messages from their laptop.
If you believe a faulty battery is causing problems in your windows Laptop or MacBook battery, contact the expert technicians to have it repaired or replaced.

If you’re tired of the battery running out on your iPhone after what seems like a short period of time, we have some tips to keep your iPhone running longer.
The tips are straight from Apple, too, which means they’re optimized specifically for iPhones. We’ll even debunk some old rumors (like: is it OK to let my battery drain faster?).

Here’s how to keep your iPhone working longer on a single charge.
Update your iPhone
Apple recommends keeping your iPhone on the latest software at all times. While it’s true some of the company’s software releases have actually been bad for Apple cellpone battery life, Apple typically works to improve performance in each release.
Dim your screenTodd Haselton | CNBCYou don’t need your screen blasting at full brightness. You can adjust it easily by opening control center (swipe down on the iPhone X or up on any other iPhone) and changing the brightness level. Apple also recommends using the auto-brightness feature , which dims the screen indoors and brightens it outdoors.

Use Wi-FiUse Wi-Fi when you canUse Wi-Fi when you canTodd Haselton | CNBCWhen your phone is connected to a cellular network, it’s constantly trying to ping cell towers and using up as much power as it can to get you a good data connection. If Wi-Fi is available, you’re better off using it since it doesn’t require your phone’s modems to work as hard.
Turn off background activity

Turn off background appsTodd Haselton | CNBCBackground Activity allows apps to pull in data even when they’re not being used. This doesn’t mean you need to close apps (Apple has debunked that theory), but it does mean you can force your phone to stop pinging the email server , for example. Here’s how:
Go to SettingsTap GeneralTap Background App Refresh and toggle it to off.Try low power modeUse low power modeUse low power modeTodd Haselton | CNBCIf you really want to get the most out of your Apple battery, use low power mode. Some folks turn this on when their iPhone is about to die, but you can lengthen the life even if you turn it on at 100 percent. “Low Power Mode reduces display brightness, optimizes device performance, and minimizes system animations,” Apple explains.

Here’s how:
Go to SettingsTap BatteryToggle Low Power ModeYou’ll know it’s on when your battery icon turns yellow.Finally, don’t worry about letting your iPhone dieWhile there are rumors that letting your battery die all the way can be good — or bad — for your iPhone, there’s no truth to them. Apple says it doesn’t matter when you charge your iPhone, whether it has 50 percent of the battery left at night when you go to bed or nothing in the tank.

Apple explains on its website that itsApple lithium-ion batteries work in cycles, no matter when you start to charge it. “You complete one charge cycle when you’ve used (discharged) an amount that equals 100% of your battery’s capacity — but not necessarily all from one charge. For instance, you might use 75% of your battery’s capacity one day, then recharge it fully overnight. If you use 25% the next day, you will have discharged a total of 100%, and the two days will add up to one charge cycle.”
Apple also stated that itsThe battery should be able to maintain “at least 80%” of its original charge capacity, allowing for what it calls “a large number of charge cycles” forApple’s batteries.

Apple is claiming the iPhone X signals the future of iPhone , but what that actually means is hard to tell until we actually get our hands on the phone on November 3. Although managing to secure one on launch day could prove extremely difficult if rumors about manufacturing delays are to be believed.

As is becoming increasingly common, details are leaking about exactly what components Apple decided to include inside its latest handset. The size of the   iPhone X battery , the amount of RAM, and the speed of the A11 Bionic chip inside the iPhone X ($999.00 at Verizon ) remains unconfirmed, but a filing by the Chinese Ministry of Industry and Information Technology’s Telecommunication Equipment Certification Center (TENAA) just revealed them.

As reported by MacRumors, the iPhone X is expected to ship with an A11 chip running at 2.4GHz complemented by 3GB of LPDDR4 RAM. The Apple cellphone battery  managed to squeeze behind that 5.8-inch OLED screen has a capacity of 2,715mAh.

If that all sounds quite familiar, it’s because the spec is almost a match for the iPhone 8 Plus ($699.99 at T-Mobile) . The one key difference being the 8 Plus battery is slightly smaller at 2,675mAh. Even though OLED is meant to use less energy than LCD, it makes sense for the iPhone X battery to be larger. For one, the display is larger (5.8-inches compared to 5.5-inches), and there will be more demand on it due to the use of Face ID.

Apple iPhone XAppleCare+ Costs $199 for iPhone XApple rates the iPhone 8 Plus as offering up to 21 hours of talk time, 13 hours of Internet use, 14 hours of video playback, or 60 hours of audio. For iPhone X, Apple lowers those times by an hour for Internet use and video playback. With the larger screen and similar Apple iPhone X battery size, you can understand why.

I’m going to tell you exactly why your iPhone battery drains so quickly and exactly how to fix it.I’m going to tell you exactly why your iPhone battery drains so quickly and exactly how to fix it. I’ll explain how you can get longer battery life out of your iPhone without sacrificing functionality. Take my word for it:
The vast majority of iPhone battery issues are software related.We’ll cover a number of proven iPhone battery fixes that I learned from first-hand experience with hundreds of iPhones while I worked for Apple. Here’s one example:

Your iPhone tracks and records your location everywhere you go. That uses a lot of battery life.A few years ago (and after a lot of people complained), Apple included a new section of Settings called Battery. It displays some useful information, but it won’t help you fix anything. I rewrote this article to improve iOS 16 battery life , and if you take these suggestions, I promise your battery life will improve, no matter which model iPhone you have.

I recently created a YouTube video to go along with the iPhone battery fixes I explain in this article. Whether you prefer to read or watch, you’ll find the same great information in the YouTube videos that you’ll read in this article.
Our first tip is a truly a sleeping giant and there’s a reason it’s #1: Fixing Push Mail can make a tremendous difference in the battery life of your iPhone.
The Real Reasons Your iPhone, iPad, or iPod Battery Dies So Fast1.Push MailWhen your mail is set to push, it means that your iPhone maintains a constant connection to your email server so that the server can insta

An Apple lead genius explained it to me like this: When your iPhone is set to push, it’s constantly asking the server, “Is there mail? Is there mail? Is there mail?”, and this flow of data causes your Apple battery to drain very quickly. Exchange servers are the absolute worst offenders, but everyone can benefit from changing this setting.
How To Fix Push MailTo fix this problem, we’re going to change your iPhone from push to fetch. You’ll save a lot of battery life by telling your iPhone to check for new mail every 15 minutes instead of all the time. Your iPhone will always check for new mail whenever you open the Mail app.

Go to Settings -> Mail -> Accounts.Tap Fetch New Data.Turn off Push at the top of the screen.Scroll to the bottom and choose Every 15 Minutes under Fetch.Tap on each individual email account and, if possible, change it to Fetch.turn off push mail and set fetch intervalMost people agree that waiting a few minutes for an email to arrive is worth the significant improvement in your iPhone’s battery life.
As an aside, if you’ve been having problems syncing contacts or calendars between your iPhone, Mac, and other devices, check out my other article called Why Are Some Of My Contacts Missing From My iPhone, iPad, or iPod? Here’s The Real Fix!
2. Turn Off Unnecessary Location ServicesLocation Services are part of what makes the iPhone such a great device, so I’d like to be clear: I don’t recommend that you turn off Location Services entirely.

hidden system services copyI’ll show you the hidden services that constantly drain your battery, and I’m willing to bet you’ve never even heard of most of them. I believe it’s important for you to choose which programs and services can access your location, especially given the significant battery drain and personal privacy issues that come with your iPhone, right out of the box.

How To Fix Location ServicesGo to Settings -> Privacy & Security -> Location Services.Tap Share My Location. If you want to be able to share your location with your family and friends in the Messages app, then leave this on, but be careful: If someone wanted to track you, this is how they’d do it.Scroll all the way to the bottom and tap System Services. Let’s clear up a common misconception right away: Most of these settings are all about sending data to Apple for marketing and research. When we turn them off, your iPhone will continue to function just as it always has.

Turn off everything on the page except Emergency SOS, Find My iPhone (so you can locate it if it’s lost) and Motion Calibration & Distance (if you’d like to use your iPhone as a pedometer – otherwise, turn that off too). Your iPhone will work exactly as it had before. The compass will still work and you’ll connect to cell towers just fine — it’s just that Apple won’t be receiving data about your behavior.

Tap Significant Locations. Did you know your iPhone has been tracking you everywhere you go? You can imagine the excess strain this puts on your  iPhone battery. I recommend you turn off Significant Locations. Tap <System Services to return to the main System Services menu .Turn off all the switches under Product Improvement. These only send information to help Apple improve their products, not make your iPhone run more efficiently.

Scroll to the bottom and turn on Status Bar Icon. That way, you’ll know your location is being used when a little arrow appears next to your battery. If that arrow is on all the time, there’s probably something wrong. Tap <Location Services to go back to the main Location Services menu.Turn off Location Services for apps that don’t need to know where you are.

IMG_0743What you need to know: If you see a purple arrow next to an app, it’s using your location now. A gray arrow means it’s used your location within the last 24 hours and a purple-outlined arrow means it’s using a geofence (more about geofences later).

Pay attention to any apps that have purple or gray arrows next to them. Do these apps need to know your location to work? If they do, that’s absolutely fine – leave them alone. If they don’t, tap on the name of the app and choose Never to stop the app from unnecessarily draining your battery.A Word About Geofencing

A geofence is a virtual perimeter around a location. Apps use geofencing to send you alerts when you arrive at or depart from a destination. It’s a good idea, but for geofencing to work, your iPhone has to constantly use GPS to ask, “Where am I? Where am I? Where am I?”

I don’t recommend using apps that use geofencing or location-based alerts because of the number of cases I’ve seen where people couldn’t make it through a full day without needing to charge their iPhone — and geofencing was the reason.
3. Don’t Send iPhone AnalyticsHere’s a quick cellphone battery tip: Head to Settings -> Privacy & Security, scroll to the bottom, and open Analytics & Improvements. Turn off the switch next to Share iPhone Analytics and Share iCloud Analytics to stop your iPhone from automatically sending data to Apple about how you use your iPhone.

turn off iphone analytics

4. Close Out Your AppsOnce every day or two, it’s a good idea to close out your apps. In a perfect world, you would never have to do this and most Apple employees will never say you should. But the world of iPhones is not perfect — if it were , you wouldn’t be reading this article.

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If you have replaced the battery on your iPhone XS, 11, or 12 series , you may have encountered a pop-up message that says “Important Battery Message.” This is due to Apple’s encryption of theApple’s battery, but there is a solution.
In this guide, Phonefix will provide step-by-step instructions on how to remove this message and replace the battery on each of these phone models.

iPhone XS SolutionDisassemble the phone using a Pentalobe screwdriver and remove the screws.Soften the adhesive securing the battery in place with an iOpener or heat gun.Gently pry up the battery using a plastic card or pry tool.Carefully detach the BMS board from the original battery by desoldering it with a soldering iron.Align the BMS board with the new battery cell and use a Spot Welder to spot weld the board to the new cellphone  battery.

Cover the exposed solder joints with electric tape.Recalibrate cycle times and battery efficiency with a AIXUN P2408S Power Supply and Qianli Battery Data Corrector.Install the new battery and check the battery health information in “Settings.”iPhone 11/12 Series SolutionUse a Pentalobe screwdriver to remove the screws and lift the display assembly to access the battery connector.

Soften the adhesive securing the battery in place with an iOpener or heat gun.Gently pry up the battery using a plastic card or pry tool.Disconnect the battery connector from the logic board and remove the original battery from the phone.Carefully detach the BMS board from the original battery using a soldering iron.Align the BMS board with the new battery cell and use a soldering iron to attach it to the new battery

cell.Cover the exposed solder joints with electric tape.Install a specialized PCB board to read the data and connect the battery to a programmer.Recalibrate cycle times and battery efficiency with a Direct Current Supply and Qianli Battery Data Corrector.
Install the new iPhone 12 battery and check the battery health information in “Settings.”Anonymous alternative charactersMain Difference Between iPhone XS and 11/12 SeriesThe main difference between these phone models is how the battery data is encrypted and stored. For the iPhone XS, it is stored on the iPhone XS battery itself, while for the 11/12 series, it is stored on the logic board. This requires different methods for transferring the BMS board and recalibrating the battery.

ConclusionBy following these instructions and using the appropriate tools and equipment, you can safely remove the “Important Battery Message” and replace the battery on your iPhone XS, 11, or 12 series. Remember to take caution when handling these delicate components and follow the steps carefully to ensure efficient operation of your phone.

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If your iPhone battery life seems like it’s getting worse, that’s because it is.
There’s a simple explanation. If you’ve owned your iPhone — or any phone — for more than a year or so and plugged it in daily, it typically begins to lose its ability to receive a full charge.

The capacity of a battery deteriorates over time, which can be due to the heat from your charger, frequent fast charging or other activities that cause your phone’s temperature to increase, such as gaming, as The Wall Street Journal recently reported.
If your iPhone can’t store more than 80% of a charge, it may be time to get your  Apple battery replaced. It’s something you can do at an Apple Store, and it can help you get more life from your iPhone if it’s otherwise in working order.

A battery replacement is free if you have AppleCare+, which costs between $3.99 and $13.49 per month depending on the iPhone model you have. If you don’t have the program, then a new battery costs anywhere from about $69 to $99, depending on your iPhone model.
There’s an easy way to check to see how much capacity your battery has lost. Here’s what to do:

Open Settings.Choose Battery.Select Battery Health & Charging.You’ll see “Maximum Capacity.” This is the measure of battery relative to when you first bought the phone. My iPhone 14 Pro Max from last September, for example, has a capacity of 87%. That means I can’t get Apple’s free battery replacement through the AppleCare+ plan that I pay for. But it explains why my battery life seems like it’s getting worse.
Take your phone to Apple for a replacement if your phone displays anything less than 80% capacity. It’s a quick and relatively affordable way to improve your iPhone battery life, particularly if you don’t otherwise need a new phone.

How to check your iPhone’s battery health

One sign that your iPhone battery is in tip-top shape? 

It says “Peak Performance.”
As long as your iPhone is on the latest version of iOS, you’ll be able to check your phone’s battery health pretty easily.
Go into the Settings app, scroll down to Battery, and select Apple Cell Phone battery Health. From there, you’ll want to look at the number next to Maximum Capacity. Ideally, it’ll be above 80% (the higher the number, the longer your battery should last on a charge), but batteries degrade over time so if it’s over a couple of years old there’s a good chance your battery is below that threshold.

Below the capacity, you’ll see a second text box that says Peak Performance Capability. Below that, there should be some smaller text that will vary depending on your phone battery’s health. If everything’s in good shape, it may say something like “Your battery is currently supporting normal peak performance.”

Otherwise, there may be a message indicating something about the status of your battery’s degrading capacity. You might get a prompt to visit an authorized Apple repair specialist, or you may just get a reminder to turn on performance management if your Apple batterycauses more  trouble .

Apple has a tool that lets you see the health of your battery and which apps are draining it the fastest.

If your iPhone battery seems to be draining faster than before, try some of these tips.You’ll be able to see which apps are draining your battery and whether it needs to be replaced.
An attendee shows off the  Apple Cell Phone  XR  during an event at the Steve Jobs Theater on Wednesday, September 12, 2018 in Cupertino, California.

Many things can cause your battery to drain quickly. For example, if you turn up the screen brightness or are out of range of a Wi-Fi or cellular network, your battery may drain faster than normal. If your battery’s health deteriorates over time, it might even drain quickly. Some of these things are out of your control, but there are ways to better manage your iPhone and Apple battery   Make it easy.

Here’s how to quickly see which apps are draining your iPhone’s battery: Open Settings on your iPhone.

Select battery.Click “Battery Health”. Make sure this says your iPhone is at “peak performance.” If not, consider purchasing a new battery from an Apple Store. You may need to do this if the battery’s maximum capacity is below 90%.
Now return to the main battery screen and scroll down.You’ll see a list of apps with the longest  Apple battery  In my case it was Safari, but yours may be different. You may even find that one app drains your battery much faster than any other app.Click “Show activity.”

Now you can see how long you spent using each app. If an app drains your battery with just a little use, you might want to consider uninstalling it.Click on “Last 10 Days.” This shows the apps that used the most   smartphone battery over the past 10 days. Here you might find some surprises: I thought I spent most of my time in Mail and Slack, but it turns out that over the past 10 days, I’ve been spending more time in GroupMe.

That’s the gist of it. It’s easy to see which apps are draining your battery. This feature is especially useful if you download a new app and find that your battery starts to drain quickly. Sometimes a bug can cause this to happen and you will know what is causing the problem and delete the app until the problem is fixed. Or you may find that your battery health is not as good as it used to be, and it’s time to go to the Apple Store to buy a new battery for your iPhone XR  Cell Phone  battery 

One of the power-hungry features of the iPhone 15 Pro and Pro Max is the 120Hz ProMotion display. This dynamically adjusts the screen refresh rate between 1Hz (which is always displayed when the phone sleeps) to 120Hz for things like scrolling content and gaming.

But if you want to maximize your phone’s battery life, is it worth turning off the feature? New tests show no…

You can limit the refresh rate to 60Hz using the settings in Accessibility, which will prevent the display from going up to those high refresh rates that drain battery power. Of course, this also means you don’t get the smooth scrolling and animations of ProMotion , so you’re giving up one of the key features of buying a “Pro” iPhone. Maybe if the Apple cellphone battery life was longer it would be worth it?

He first conducted a Geekbench 4 battery test, and the results showed that the smart iPhone battery life increased by about 5%. A less scientific but more realistic test showed similarly small differences. As he concluded, it’s important, but not enough to give up ProMotion’s smoothness.

He said you do see a big difference when you play games that support 120fps.
Shooting games “Call of Duty: Mobile” and “PUBG” mobile support high refresh rates, and games such as “Brawl Stars”, “League of Legends: Wild Rift”, “Genshin Impact” and “Alto’s Odyssey” High refresh rates are also supported.

In most of these games, you have to turn on the in-game options to select a special 120fps or high frame rate mode.
It’s impossible to do any scientific testing here because there are so many variables, but he said that as a rough guide, he noticed that when ProMotion was turned off, battery usage was roughly cut in half. This is because high frame rates impact Apple battery life through more intensive GPU usage and faster frame rates.

This is obviously a huge gain, and something you might consider if you do a lot of mobile gaming without battery, but in general you don’t need to turn ProMotion off – as 120fps is usually what you need in every game Something that is actively enabled.
So unless 5% charge affects whether your iPhone battery lasts all day, enable ProMotion. If you’re a gamer and want to saveiPhone battery, just turn off high frame rates when playing without a power outlet handy.