Is your iPhone battery dropping from 100% to 50% much faster than usual? Before you start blaming the battery or deleting apps, there’s a simple way to find out what’s actually consuming your power. Learning how to check which apps are draining your iPhone battery can help you identify battery-hungry apps and understand whether something really needs to be fixed.
You don’t need to install a third-party battery-monitoring app to get started. Your iPhone already has a built-in Battery section that provides a detailed breakdown of battery usage. It can show which apps have consumed the most battery over a selected period, along with information about activity such as screen time and background activity.
This is especially useful if your iPhone battery is draining fast, getting warm during normal use, or losing power even when you’re not actively using it. Instead of guessing which app is responsible, you can use this information to narrow down the cause and take the right action.
However, there’s an important detail to understand: an app showing high battery usage doesn’t automatically mean the app is faulty. A video-streaming app, navigation app, camera, or game may naturally use more battery because it requires more screen time, processing power, location services, or network activity.
In this guide, we’ll show you exactly where to find your iPhone’s battery usage information, how to interpret the numbers, and what you can do when an app is genuinely contributing to unusual battery drain.
How to Check Which Apps Are Draining Your iPhone Battery
If your iPhone battery is draining faster than usual, you can check which apps and system activities are using the most power directly from iOS. You don’t need to install a separate battery-monitoring app.
Here’s how to check which apps are draining your iPhone battery:
Step 1: Open Settings
Start by opening the Settings app on your iPhone.
Go to: Settings -> Battery
This opens the Battery screen, where iOS provides information about your recent battery usage and activity.
Step 2 : Check Daily Usage
At the top of the Battery screen, iPhone shows a Daily Usage chart that helps you see how your battery level has changed throughout the day.
Use this chart to spot when your battery consumption increased or when your iPhone experienced an unusually large drop in charge.
You can also compare your current usage with previous days. This is useful because battery drain can vary depending on how much you use your iPhone, whether you stream videos, play games, use GPS, or perform other power-intensive activities.
Step 3 : Look at App and System Activity Usage
Scroll down to see the App and System Activity information.
Here, iPhone shows which apps and system activities have used battery during the selected period. You may see apps such as Safari, YouTube, Instagram, Maps, games, or other frequently used apps listed in the breakdown.
The percentage or amount shown represents battery usage during that period. A higher figure doesn’t automatically mean an app is malfunctioning. For example, an app you actively used for several hours may naturally appear near the top.
Step 4 : Tap “View All Battery Usage”
To get a more complete picture, tap View All Battery Usage when the option is available.
This expands the battery-usage information so you can see additional apps and system activities that consumed power.
This is particularly helpful when you’re trying to check battery usage on iPhone and the app you’re looking for isn’t immediately visible in the initial list.
Step 5 : Select a Day to Compare Battery Usage
Don’t judge an app based on a single hour or even a single day of battery usage.
Instead, select different days in the Battery section and compare your usage patterns. iPhone can provide battery information across the current day and previous days, allowing you to identify whether the unusual drain is a one-time event or a recurring pattern.
For example, if YouTube used a large percentage of your battery on a day when you watched videos for several hours, that usage may be completely normal. But if an app consistently consumes significant battery despite very little use, it deserves closer attention.
Comparing multiple days gives you a much more reliable picture of your iPhone battery usage by app and can help you determine whether an app is genuinely contributing to unusual battery drain.
How to Tell Which Apps Are Actually Draining Your Battery
Seeing an app at the top of your iPhone battery-usage list doesn’t automatically mean it’s causing abnormal battery drain.
What matters is why the app used that much battery and whether the usage matches what you were actually doing. For example, if you watched Netflix for three hours, it’s normal for Netflix to account for a noticeable amount of battery usage. The same applies to games, video calls, camera apps, and GPS navigation.
Instead of focusing only on the app with the highest percentage, look for patterns that don’t make sense.
Here are some signs that an app may genuinely be contributing to excessive battery drain:
- Unusually high battery usage: An app consumes a large amount of battery compared with your normal usage.
- High background activity: The app continues doing significant work when you aren’t actively using it.
- Unexpected usage: An app uses substantial battery even though you barely opened or interacted with it.
- Repeated high usage: The same app consistently appears among the highest battery users over several days.
- Excessive heat: Your iPhone becomes noticeably warm while an app is running or working in the background.
- Changes after an update: Battery drain starts or becomes noticeably worse after updating an app or iOS.
The key is to look for unexpected or repeated behavior, rather than simply choosing the app with the largest number.
High Battery Usage vs. Abnormal Battery Drain
| Situation | Is it necessarily a problem? |
|---|---|
| YouTube used for 3 hours | No |
| GPS/navigation running for hours | No |
| Gaming for several hours | No |
| App has significant background activity when unused | Potentially |
| Battery suddenly drops after an app update | Worth investigating |
| iPhone gets hot while an app runs in the background | Worth investigating |
For example, suppose YouTube is responsible for 25% of your battery usage after you spent three hours watching videos. That number may look high, but it makes sense given your usage.
Now consider a different situation: an app you opened for only a few minutes appears near the top of your battery list and shows substantial background activity across multiple days. If your battery is also draining faster than usual, that’s a much stronger reason to investigate.
The goal isn’t to find the app that uses the most battery. It’s to find the app whose battery usage doesn’t match how you actually use your iPhone.
This distinction can save you from unnecessarily deleting apps, changing settings that don’t need to be changed, or assuming that your iPhone battery is defective when the usage is actually normal.
What Does Battery Usage by App Mean on iPhone?
When you check iPhone battery usage by app, you may see several different measurements and activity labels. These details help explain not only which apps used your battery, but also how they used it.
Depending on your iPhone and iOS version, the Battery section can show information such as battery usage percentage, on-screen activity, background activity, notifications, cellular coverage, and system activity.
Understanding these labels is important because a high battery percentage doesn’t automatically mean an app is causing a problem.
Battery Percentage
The battery percentage indicates how much of your battery usage was attributed to an app or activity during the selected period.
For example, if an app shows 20%, it means that app accounted for 20% of the battery used during that period, not that the app permanently consumed 20% of your iPhone’s total battery capacity.
Always consider the percentage alongside your actual usage.
What Does “On Screen” Mean?
On Screen refers to the amount of time an app was actively displayed on your iPhone’s screen.
An app that you use for a long time, such as YouTube, Netflix, Safari, Instagram, or a game, can naturally have significant on-screen activity and battery usage.
This is generally expected when the app is being actively used.
What Does “Background Activity” Mean?
Background Activity means an app was performing tasks while it wasn’t necessarily visible on your screen.
For example, an app may refresh content, process information, use location services, sync data, or perform other tasks in the background.
Some background activity is normal. However, if an app shows substantial background activity despite very little active use, and your battery is draining unusually fast, it may be worth investigating.
What Does “Notifications” Mean?
The Notifications information indicates activity associated with notifications from an app.
Frequent notifications can wake your iPhone or cause the screen to turn on, depending on your notification settings. If an app is sending a large number of notifications, this can contribute to battery usage.
That doesn’t necessarily make the app problematic, but it can help explain some battery consumption.
What Does “Low Cellular Coverage” Mean?
Low Cellular Coverage indicates that your iPhone has been operating in an area with weak cellular signal.
When cellular coverage is poor, your iPhone may use more power while searching for or maintaining a cellular connection. This means battery drain isn’t always caused by an app.
For example, if your battery seems to drain faster during a trip, inside a building, or in an area with weak network coverage, poor cellular signal may be part of the explanation.
What Is System Activity?
Not all battery usage comes from individual apps. iPhone can also show system activity, which represents power used by iOS and various system functions.
This is why you shouldn’t assume that every battery drain issue can be traced to a specific app. Location services, connectivity, display usage, system processes, and other iOS functions can all affect battery consumption.
The best way to interpret the Battery screen is to look at the complete picture: which app is using battery, how long you used it, whether it was active in the background, and whether the same pattern continues over multiple days.
What Is Background Activity on iPhone?
Background activity on iPhone refers to work an app performs when you aren’t actively using it on screen. Some apps need to continue working in the background so they can provide useful features, keep information updated, or complete tasks.
For example, background activity can include:
- Location tracking: Apps such as Maps or fitness apps may use your location to provide location-based features.
- Music playback: Music apps can continue playing audio while you use another app or lock your iPhone.
- Photo syncing: Photos and cloud-storage apps may upload or sync photos in the background.
- Mail fetching: Mail apps may check for new messages depending on your account and settings.
- Navigation: Navigation apps may continue using location and processing route information while you’re traveling.
- Updating and syncing information: Apps may refresh content, synchronize data, or complete other tasks without remaining open on your screen.
Some background activity is therefore completely normal. The important question is whether an app is doing more background work than you would reasonably expect and whether that activity is contributing to noticeable battery drain.
For example, a navigation app showing background activity after you’ve recently used it may make sense. But an app you rarely use repeatedly showing significant background activity could be worth investigating.
How to Reduce Unnecessary Background Activity
You don’t need to turn off every background feature to improve battery life. Doing so can interfere with features you actually rely on.
Instead, review which apps are using battery in the background and adjust settings selectively.
1. Review Background App Refresh
Go to: Settings → General → Background App Refresh
You can choose whether Background App Refresh is enabled and manage which apps are allowed to refresh in the background.
Consider disabling it for apps that don’t need to regularly update when you’re not using them.
2. Review Location Access
Go to: Settings → Privacy & Security → Location Services
Check which apps have access to your location. If an app doesn’t need continuous location access, consider choosing a less permissive option where available.
3. Check Mail Fetching
If you don’t need email to update continuously, reviewing your Mail account’s fetch settings can help reduce unnecessary background activity.
4. Don’t Disable Features You Actually Need
If you regularly use navigation, music streaming, photo syncing, messaging, or other background features, disabling them may simply make the iPhone less convenient.
Instead, focus on apps that show unexpected or repeated background activity.
The goal isn’t to eliminate all background activity. It’s to reduce unnecessary background work while keeping the features you actually use.
Which Apps Usually Use the Most iPhone Battery?
There isn’t a single app that always uses the most battery on every iPhone. Battery consumption depends on how you use an app, how long you use it, what features it accesses, and conditions such as cellular signal strength.
An app may use a lot of battery because you actively use it for several hours—not necessarily because the app is poorly optimized.
Factors that can significantly affect battery usage include:
- Screen time: Keeping the display on for long periods increases power consumption.
- Video streaming: Streaming video requires the display, processor, speakers, and network connection to work continuously.
- Gaming: Graphics-intensive games can place a heavier load on the processor and graphics hardware.
- GPS: Location-based apps can consume additional power when they continuously use location services.
- Camera usage: Recording photos and especially high-resolution video can require substantial processing power.
- Cellular signal: Poor cellular coverage can increase power consumption as the iPhone works to maintain a connection.
- Background activity: Apps performing tasks when you’re not actively using them can contribute to battery usage.
- Notifications: Frequent notifications can wake the device and contribute to additional activity.
- Individual usage patterns: Two people using the same app can see very different battery consumption.
Instead of asking “Which app drains the most iPhone battery?”, it’s more useful to ask whether an app’s battery usage is reasonable for the way you use it.
Video Streaming Apps
Video streaming can consume significant battery because your iPhone has to keep the display active while continuously processing and receiving video data.
Watching videos for several hours can therefore make a streaming app appear high on your Battery usage list. This is generally expected and doesn’t necessarily indicate a battery problem.
Social Media Apps
Social media apps can involve a combination of video playback, image loading, scrolling, networking, notifications, and background activity.
If you spend a lot of time browsing social media, substantial battery usage may simply reflect your screen time.
However, unusually high background activity when you’re barely using an app may be worth investigating.
Navigation and GPS Apps
Navigation apps can use location services continuously while you’re traveling. They may also keep the screen active, process maps, communicate over a cellular or Wi-Fi connection, and provide turn-by-turn directions.
It’s therefore normal for navigation to use more battery during a long journey.
Games
Games—particularly graphics-intensive titles—can use considerable power because they place a heavier workload on the iPhone’s processor and graphics hardware.
Playing a demanding game for an extended period can also cause the device to become warm. That doesn’t automatically mean the game is damaging your iPhone or that the battery is defective.
Camera and Video Editing Apps
The camera can require significant processing power when taking photos or recording video. Video editing can be even more demanding because your iPhone may need to process and render large media files.
Extended camera or video-editing sessions can therefore result in noticeably higher battery consumption.
Music and Podcast Apps
Music and podcast apps generally consume less power than activities such as gaming or video streaming because you aren’t continuously processing video.
However, battery usage can increase when audio playback continues for long periods, particularly when combined with cellular data, Bluetooth accessories, downloads, or other background tasks.
The takeaway: Don’t automatically label an app as a “battery-draining app” just because it appears near the top of your Battery list. Look at how long you used it, what it was doing, its background activity, and whether the same pattern occurs repeatedly. That gives you a much more reliable way to identify genuine battery-drain problems.
Why Is My iPhone Battery Draining So Fast?
If you’re wondering why is my iPhone battery draining so fast, don’t assume that a single app is always responsible. Apps can certainly contribute to battery drain, but your iPhone’s display, network connection, location services, software activity, battery age, and even temperature can also affect how quickly the battery runs down.
Here are some of the most common reasons your iPhone may be losing battery faster than expected.
1. Heavy Screen Usage
The display is one of the biggest contributors to battery consumption. Spending several hours browsing, watching videos, using social media, or playing games can naturally reduce your battery faster.
Check your screen activity alongside app battery usage to see whether increased screen time explains the drain.
2. Background Activity
Apps can perform tasks even when you’re not actively using them. Background activity may include syncing information, refreshing content, checking for updates, or using location services.
If an app shows significant background activity when you rarely use it, review its permissions and settings.
3. Poor Cellular Signal
Weak cellular coverage can affect battery life because your iPhone may use additional power to maintain or search for a connection.
If you notice faster battery drain in areas with poor reception but not in areas with a strong signal, cellular coverage may be part of the explanation.
4. High Screen Brightness
Keeping your display very bright for extended periods can increase battery consumption.
Using automatic brightness or reducing brightness when practical can help limit unnecessary display power usage.
5. Location Services
Apps that frequently access your location can contribute to battery usage. Navigation, fitness, weather, transportation, and other location-based apps may legitimately need this access.
Review Settings → Privacy & Security → Location Services and check whether apps have the level of location access they actually need.
6. Frequent Notifications
Notifications can cause your iPhone to wake the screen or perform other activity. If you’re receiving a large number of notifications throughout the day, they can contribute to overall battery consumption.
Consider turning off unnecessary notifications rather than disabling notifications for every app.
7. Gaming and Video Streaming
Gaming and video streaming can use more battery because they often combine prolonged screen usage with significant processing, graphics, audio, and network activity.
If your battery drops quickly after several hours of gaming or streaming, that may be normal rather than a sign that an app is defective.
8. iOS Updates and Software Activity
Battery life can temporarily behave differently around software updates. Your iPhone may perform additional tasks after an update, such as processing information, indexing content, or completing other system activity.
If you notice unusual battery usage immediately after updating iOS, give the device some time and continue monitoring its battery behavior before assuming something is permanently wrong.
9. Battery Aging
Rechargeable batteries gradually lose their ability to hold a full charge as they age.
Check:
Settings → Battery → Battery Health & Charging
Depending on your iPhone model and iOS version, this section provides information about battery health and may indicate whether battery service is recommended.
If your battery health has significantly declined, the battery itself—not an individual app—may be contributing to shorter battery life.
10. Environmental Temperature
Temperature can also affect battery performance. Very hot or very cold conditions can temporarily affect how your iPhone performs and how long its battery lasts.
If battery behavior changes significantly when you’re using the device in extreme temperatures, allow the iPhone to return to a more moderate temperature and monitor it again.
The Bottom Line
When your iPhone battery suddenly starts draining faster, look for a pattern instead of blaming the first app at the top of the Battery list.
Check your app usage, screen activity, background activity, cellular coverage, and recent software changes. Then compare the results with previous days.
This approach can help you determine whether you’re dealing with normal battery consumption, an unusually active app, environmental conditions, or a battery that may simply be reaching the end of its useful lifespan.
What Is Draining My iPhone Battery Besides Apps?
If you’re asking what is draining my iPhone battery, the answer may not be an app at all. Your iPhone uses battery power for the display, cellular connection, system processes, location services, and other functions even when you’re not actively using a particular app.
Before deleting apps or assuming that one app is defective, consider these other potential causes.
Display
Your iPhone’s display can consume a significant amount of power, particularly when you use the phone for long periods or keep the screen brightness high.
Watching videos, browsing social media, gaming, and other activities that keep the screen on continuously can naturally reduce battery life.
Cellular Connectivity
Your iPhone uses power to maintain its connection to your mobile network. Battery consumption can increase when you’re in an area with weak cellular coverage because the device may work harder to maintain a connection.
If your battery drains noticeably faster in locations with poor reception, your cellular connection may be contributing to the problem.
Background System Activity
Not all background activity belongs to individual apps. iOS also performs system tasks that can consume battery while you’re not actively using your iPhone.
Some background processing is normal and necessary for the operating system and its features. A temporary increase in activity doesn’t necessarily indicate a problem.
Location Services
Location services allow apps and system features to determine where your iPhone is located. Navigation, weather, fitness, transportation, and other services may use location information.
If several apps have access to your location, this can contribute to battery usage. Review their permissions and make sure each app has the level of access it actually needs.
Notifications
Notifications can cause your iPhone to wake the display and perform additional activity. A large number of notifications throughout the day can therefore contribute to battery consumption.
Rather than disabling notifications everywhere, consider turning them off for apps whose alerts aren’t important to you.
iOS Processes
iOS itself performs various processes in the background, including system maintenance, syncing, indexing, and other tasks.
After certain system changes or updates, you may temporarily notice different battery behavior while these processes are completed.
Battery Health
Sometimes the battery—not the software—is the reason your iPhone isn’t lasting as long as it used to.
Rechargeable batteries naturally age over time and gradually lose their ability to hold a full charge. Check Settings → Battery → Battery Health & Charging to review the available battery-health information for your device.
Poor Cellular Signal
Poor signal deserves special attention because it can be easy to overlook. You may blame an app for rapid battery drain when the real issue is that your iPhone is operating in an area with consistently weak cellular coverage.
Compare your battery behavior in locations with strong and weak reception to see whether there’s a noticeable difference.
Recently Installed or Updated Software
If battery drain begins shortly after installing or updating an app, that change is worth investigating—but don’t immediately assume the update is defective.
Monitor the Battery section over the following days and check whether the same app continues to show unusually high usage or background activity.
Similarly, battery behavior can temporarily change after an iOS update while the iPhone completes additional system tasks.
The Important Takeaway
An app doesn’t have to be responsible for every battery-drain problem.
If your iPhone battery is suddenly disappearing faster than usual, look at the bigger picture: screen usage, cellular signal, background activity, location services, notifications, recent software changes, and battery health.
Once you identify what changed, you have a much better chance of fixing the actual cause instead of simply deleting apps that were never the problem.
What Is Draining My iPhone Battery Besides Apps?
Wondering what is draining my iPhone battery when no particular app seems responsible? Apps are only one part of the equation. Your iPhone also uses power for the display, cellular connection, location services, system processes, and other features running in the background.
If your battery is draining unusually fast, check these potential causes before assuming an app is the problem.
Display
The display can be a major source of battery consumption. High brightness, long screen-on time, and activities such as watching videos or gaming can cause your battery level to drop quickly.
If your screen usage has increased recently, that alone may explain why your iPhone isn’t lasting as long between charges.
Cellular Connectivity
Your iPhone constantly works to maintain a connection to a cellular network. When the signal is weak, maintaining that connection can require more power.
This is especially relevant if you notice faster battery drain in certain buildings, rural areas, or other locations where reception is poor.
Background System Activity
Battery usage isn’t limited to apps that you can see on screen. iOS can perform background tasks and system maintenance that require processing power.
Some background activity is completely normal. A temporary increase may occur after certain system changes or updates and doesn’t necessarily indicate a problem.
Location Services
Location services allow your iPhone and apps to determine your approximate or precise location when required.
Navigation, weather, fitness, transportation, and other location-dependent features can use additional battery. Review which apps have location access and whether they actually need it.
Notifications
Notifications can contribute to battery usage because they may wake the display or cause your iPhone to perform additional activity.
If you’re receiving frequent alerts from many apps, consider keeping notifications enabled only for apps where they are genuinely useful.
iOS Processes
iOS performs various tasks behind the scenes, including syncing, indexing, maintenance, and other system operations.
These processes don’t necessarily indicate a battery problem. However, if unusual battery activity continues for an extended period, it’s worth checking the Battery section and looking for other changes that occurred around the same time.
Battery Health
If your iPhone is several years old and the battery doesn’t last nearly as long as it once did, battery aging may be the explanation.
Rechargeable batteries gradually lose capacity as they age. You can check the available information under:
Settings → Battery → Battery Health & Charging
If the battery’s maximum capacity has significantly declined or iOS recommends service, the battery itself may be limiting how long your iPhone lasts.
Poor Cellular Signal
Poor signal is closely related to cellular connectivity but deserves separate attention when troubleshooting.
If your iPhone drains noticeably faster in an area with weak reception and behaves normally elsewhere, the network conditions may be contributing to the problem rather than an app.
Recently Installed or Updated Software
Did the battery start draining faster after installing an app or updating existing software?
That change is worth monitoring, but don’t immediately assume the software is defective. Check your Battery usage over several days to see whether the same app or activity repeatedly shows unusual usage.
Likewise, an iOS update can involve additional system activity while your iPhone completes tasks after the update.
Look Beyond the Apps
When troubleshooting battery drain, don’t ask only “Which app is draining my iPhone battery?” Ask “What changed?”
Compare your recent battery usage with previous days and consider screen time, cellular signal, background activity, location services, notifications, software updates, and battery health.
This broader approach helps you identify the actual source of unusual battery drain instead of automatically blaming an app that may simply have been used more than usual.
How to Fix Apps That Are Draining Your iPhone Battery
Once you’ve identified an app with unusually high battery usage, the next step is to determine whether its activity is expected or whether something has changed.
You don’t necessarily need to delete the app. Try these fixes first, especially if the app shows excessive background activity, started using more battery after an update, or is consuming power when you’re barely using it.
Update the App
If an app suddenly starts using more battery than usual, check the App Store for an available update.
Developers regularly release updates that can fix bugs, improve performance, and address compatibility issues. Keeping your apps updated can therefore be a sensible first troubleshooting step.
Update iOS
Also check whether your iPhone is running the latest available version of iOS.
Go to:
Settings → General → Software Update
Software updates can include bug fixes, performance improvements, and other changes that may affect battery behavior.
If the battery drain began immediately after an iOS update, don’t assume the update is permanently causing the problem. Monitor your usage for a few days and look for a continuing pattern.
Review Background App Refresh
If an app shows substantial background activity, review whether it needs to refresh when you’re not using it.
Go to:
Settings → General → Background App Refresh
You can manage Background App Refresh for individual apps instead of turning it off everywhere.
For example, an app you rarely use may not need to refresh continuously in the background, while an app whose information you want kept up to date may benefit from the feature.
Review Location Permissions
Location access can contribute to battery usage, particularly when an app frequently uses your location.
Go to:
Settings → Privacy & Security → Location Services
Review the apps that have location access and choose an appropriate permission for each one.
Don’t automatically disable location access for every app. Navigation, transportation, fitness, weather, and other location-based services may need it to work correctly.
Reduce Unnecessary Notifications
Frequent notifications can cause additional device activity and may wake the display.
Go to:
Settings → Notifications
Review which apps are sending alerts and turn off notifications you don’t actually need.
This can reduce unnecessary activity without affecting notifications that are important to you.
Check Cellular Usage and Signal
If battery drain happens mainly when you’re in an area with weak cellular coverage, the network connection may be contributing to the problem.
Pay attention to whether your iPhone behaves differently in areas with strong and weak reception. You can also review cellular settings and app usage under:
Settings → Cellular
If one app is using a large amount of cellular data, consider whether its network activity matches how you use it.
Use Low Power Mode When Needed
When you need your battery to last longer, Low Power Mode can temporarily reduce power consumption.
You can find it under:
Settings → Battery → Low Power Mode
Low Power Mode reduces or limits certain power-consuming activities and features. Depending on your iPhone and iOS version, this can include things such as Mail fetch, Hey Siri, Background App Refresh, and some visual effects.
It’s best viewed as a battery-saving option, rather than a permanent solution for an app that is genuinely behaving abnormally.
If one app repeatedly shows unusually high battery usage, investigate the underlying cause instead of relying on Low Power Mode to hide the problem.
Don’t Delete an App Just Because It Uses the Most Battery
Remember that the app at the top of your Battery list isn’t necessarily the app you need to remove.
If you spent two hours watching videos, playing a game, or navigating with GPS, high battery usage is expected. The more useful warning signs are unexpected background activity, repeated high usage, excessive heat, or a sudden change from your normal battery behavior.
Start with the least disruptive fixes, monitor your battery over the next few days, and only consider removing or replacing an app if the unusual behavior continues.
Should You Turn Off Background App Refresh?
Not necessarily. Turning off Background App Refresh for every app isn’t a guaranteed solution to iPhone battery drain.
Background App Refresh allows suspended apps to check for updates and new content in the background. This can make apps feel more up to date when you open them, but it can also contribute to battery and data usage depending on what an app does and how frequently it performs background tasks.
If you’re troubleshooting battery drain, the better approach is to manage Background App Refresh selectively rather than immediately switching it off everywhere.
When Can Background App Refresh Affect Battery Life?
Background App Refresh can matter when apps regularly perform tasks while you’re not actively using them.
For example, an app that frequently refreshes content or synchronizes information in the background may contribute to battery usage. This becomes more relevant if you notice that an app has significant background activity in the Battery section despite spending very little time using it on screen.
However, background activity by itself doesn’t prove that an app is causing abnormal battery drain. Some apps legitimately need to update information in the background.
When Should You Keep It Enabled?
You may want to keep Background App Refresh enabled for apps where having updated information available when you open them is useful.
For example, frequently used apps may benefit from being able to refresh their content in the background. Disabling the feature can also change how quickly some apps update information when you return to them.
There’s no need to sacrifice useful functionality simply because you’re trying to save a small amount of battery.
How to Manage Background App Refresh Selectively
Instead of turning the feature off completely, review which apps are allowed to use it.
Go to:
Settings → General → Background App Refresh
From there, you can manage the feature and choose which apps can refresh in the background.
Consider disabling it for apps that:
- You rarely use
- Don’t need to keep information updated
- Show unusually high background activity
- You don’t mind waiting for them to refresh when you open them
Keep it enabled for apps where background updating provides a useful benefit.
So, Should You Turn It Off?
Only if there’s a reason to.
If your Battery screen shows an app with unusually high background activity, selectively restricting its Background App Refresh access is a reasonable troubleshooting step.
But if your battery life is normal and the apps you use benefit from background updates, there’s little reason to disable the feature across your entire iPhone.
The goal isn’t to turn off every battery-consuming feature. It’s to identify unnecessary background activity while keeping the features that make your iPhone work the way you want.
Does Closing Apps Save iPhone Battery?
Usually, you don’t need to constantly close apps to save your iPhone battery.
There’s an important difference between simply switching between apps and force-closing an app from the App Switcher.
Switching Between Apps
When you swipe up from the bottom of the screen and switch to another app, iOS manages apps in the background for you. Many apps become suspended rather than continuing to actively run.
This means you don’t need to manually close an app every time you’re finished using it.
For example, if you open Safari, switch to Messages, and then return to Safari later, there’s no need to force-close Safari simply because it appears in the App Switcher.
Force-Closing Apps
Force-closing means opening the App Switcher and swiping an app away to remove it from the list.
Doing this occasionally can be useful if an app is unresponsive, frozen, or behaving unexpectedly. However, repeatedly force-closing every app isn’t a good general battery-saving strategy.
When you reopen an app you’ve force-closed, your iPhone may need to load and initialize it again. Constantly repeating this process doesn’t necessarily improve battery life and can make using your iPhone less convenient.
What Should You Do Instead?
If you’re concerned that an app is draining your battery, don’t start by force-closing every app.
First, check:
Settings → Battery
Look for unusual battery usage, excessive background activity, and patterns that continue across multiple days.
If a particular app is behaving abnormally, try updating it, checking its background and location permissions, or restarting your iPhone. If the problem continues, you can investigate the app further or consider removing it.
The App Switcher is not a battery-management checklist. Let iOS manage ordinary app suspension, and focus your troubleshooting efforts on apps that show genuinely unusual battery behavior.
What If Your iPhone Battery Is Still Draining Fast?
If you’ve checked your iPhone battery usage by app and nothing looks obviously wrong, don’t stop troubleshooting there. Battery drain can come from the device itself, its network conditions, software activity, or an aging battery.
If your iPhone is still losing power unusually quickly, work through these checks before assuming that an app is responsible.
Check Battery Health
Your battery gradually loses capacity as it ages. If your iPhone is several years old, reduced battery capacity may be a more likely explanation for shorter battery life than a particular app.
To check your battery health:
Settings → Battery → Battery Health
On some older iPhone models, the menu is labelled:
Settings → Battery → Battery Health & Charging
Apple currently uses Battery Health on iPhone 15 and later, while iPhone 14 and earlier use Battery Health & Charging. If you see Service next to Battery Health, Apple recommends considering battery replacement to restore full performance and capacity.
Check for iOS Update Activity
If your battery started draining faster immediately after an iOS update, don’t assume the update has permanently damaged your battery.
After an update, your iPhone may continue performing certain tasks in the background. Apple says this temporary activity can affect battery life and thermal performance while the update finishes processing. You may see an Ongoing iOS Update insight in the Battery section during this period.
If you’ve recently updated iOS, give your iPhone a few days and then check the Battery section again. If battery life remains significantly worse after the background processing has finished, continue troubleshooting.
Check Cellular Signal
Poor cellular coverage can also contribute to faster battery drain. When your iPhone is searching for or maintaining a connection in a low-signal environment, it can use additional power.
Pay attention to whether your battery drains faster in places where you regularly have weak reception.
If possible, use Wi-Fi when available and compare your battery behavior in areas with stronger cellular coverage. Apple also notes that both Wi-Fi and mobile connections generally use less energy when the signal is strong.
Consider Battery Replacement
If you’ve ruled out unusual app activity, background processes, poor signal, and recent software changes—but your iPhone still doesn’t last nearly as long as it used to—battery aging may be the underlying issue.
Check Battery Health for signs that the battery has significantly degraded. If iPhone displays a Service recommendation, battery replacement may be appropriate.
A useful rule of thumb is:
If battery usage looks normal but battery life remains poor, investigate the battery itself.
You don’t need to replace the battery simply because an iPhone is older. But if battery health indicates service is needed and the device no longer provides the runtime you need, replacing the battery can be a more appropriate solution than repeatedly changing app settings.
Don’t Forget to Compare Before and After
After making changes, don’t judge the result after just one hour.
Use the Battery section to compare your current usage with previous days. iOS 26’s Daily Usage view compares your current battery behavior with recent usage, while View All Battery Usage provides a broader history and lets you inspect individual days.
This gives you a much better way to determine whether the change actually improved your battery life—or whether the original problem was simply normal usage.
Is Your iPhone Battery Draining After an iOS Update?
Did your iPhone suddenly start losing battery faster after installing an iOS update? You’re not necessarily dealing with a defective battery or a problematic app.
iPhone battery drain after an update can sometimes be temporary. After an iOS update, your iPhone may continue performing tasks in the background while it finishes processing the update and completing device-related setup. Apple notes that this activity can temporarily affect both battery life and device temperature.
Temporary Post-Update Background Activity
You can use your iPhone normally after an update, but some update-related tasks may continue in the background.
On supported versions of iOS, the Battery section may show an Ongoing iOS Update Insight when a recent software update is still finishing in the background. You may also see Ongoing Device Setup when your iPhone is completing setup-related tasks.
These Insights are important because they can explain why your battery appears to be draining faster than normal immediately after an update.
Indexing and Setup Processes
After a major software change, your iPhone may need to process and organize information in the background.
These tasks can temporarily increase system activity and power consumption. Your iPhone may also become warmer than usual while this work is taking place.
That doesn’t automatically mean the update has damaged your battery.
Check for App Updates
Don’t forget about your apps.
After updating iOS, check the App Store for available app updates. An app may need an update to work correctly with the latest version of iOS, and keeping apps current is a sensible troubleshooting step if unusual battery usage continues.
If one particular app repeatedly appears near the top of your Battery usage after the update, compare its usage with previous days rather than judging it based on a single reading.
Check Battery Insights
Open:
Settings → Battery
Look above the Daily Usage section for any available Battery Suggestions or Insights.
If you see Ongoing iOS Update or Ongoing Device Setup, this provides useful context for the temporary increase in battery usage. Apple says these Insights identify background activities that can affect battery life and thermal performance for a while; once the activity finishes, battery life should return toward normal.
Wait Before Concluding There’s a Hardware Problem
If the battery started draining immediately after an iOS update, give your iPhone a few days before concluding that the update has caused a permanent battery problem.
Apple specifically recommends waiting a few days after an update and then checking battery performance again.
After that period, return to Settings → Battery and compare your recent usage with previous days.
If battery life returns to its usual level, the post-update activity was likely temporary.
If the drain continues for several days, look for other explanations such as unusually high app usage, background activity, poor cellular signal, excessive screen time, or an aging battery.
The key takeaway: Don’t panic when your iPhone battery drains faster immediately after an iOS update. First check Battery Insights, give background processing time to finish, and then evaluate the longer-term battery pattern.
iOS 26 Battery Features You Should Know
If you’re using an iPhone with iOS 26, the Battery section gives you more useful information than simply showing which apps used the most power.
Apple has added and expanded several battery-monitoring and power-management features that can make it easier to understand unusual battery drain and extend battery life.
iOS 26 note: The Daily Usage chart and Adaptive Power require iOS 26 or later. Some Battery Insights and battery-usage features are also available on earlier iOS versions. Availability can vary by iPhone model.
Daily Usage
Daily Usage gives you a visual comparison of your current battery consumption with your usage over the previous seven days.
Go to:
Settings → Battery
The chart can show whether you’re using more, less, or a similar amount of battery than usual. You can also tap individual days to investigate their battery usage.
This makes Daily Usage particularly useful when troubleshooting battery drain. Instead of asking whether today’s battery percentage looks high or low, you can compare it with your normal pattern.
Requires iOS 26 or later.
Battery Insights
iOS can display Battery Suggestions and Insights near the top of the Battery screen.
These can point out activities that may be affecting battery life. For example, Apple documents Insights such as:
- Ongoing iOS Update — a recent iOS update is still completing tasks in the background.
- Ongoing Device Setup — your iPhone is completing setup-related activity in the background.
These Insights are particularly useful after an update because they can explain temporary increases in battery usage or device temperature.
Battery Insights are available on iOS 18 and later, although the specific Insights you see can vary.
App and System Activity Usage
The Battery screen also provides App and System Activity Usage, showing battery consumption from apps as well as system activities.
On iOS 26, the Daily Usage section highlights the apps that have used the most battery, and you can tap an app to compare its current usage with its recent history. View All Battery Usage provides a more detailed view, including system activities.
This is more useful than simply looking for the app with the highest percentage because you can compare today’s behavior with previous days.
Daily Usage comparison requires iOS 26 or later.
Low Power Mode
Low Power Mode is designed for situations when you need your iPhone to last longer between charges.
On iPhone 15 and later, the path is:
Settings → Battery → Power Mode → Low Power Mode
Low Power Mode reduces or disables certain power-consuming activities and features, including Mail fetch, Hey Siri, Background App Refresh, and some visual effects. It can also affect certain performance and display behaviors.
You don’t need to keep Low Power Mode enabled all the time. It’s particularly useful when you’re traveling, away from a charger, or dealing with unexpectedly low battery.
Adaptive Power
Adaptive Power is one of the more notable iOS 26 battery features, but it is not available on every iPhone.
With Adaptive Power enabled, your iPhone can automatically adjust certain settings on days when your power usage is higher than normal. Apple says it can:
- Make performance adjustments
- Slightly reduce screen brightness
- Limit background activity
- Automatically turn on Low Power Mode when the battery reaches 20%
Adaptive Power works automatically in the background once enabled.
To check it:
Settings → Battery → Power Mode → Adaptive Power
Requires iOS 26 or later and a compatible iPhone. Apple’s current supported devices include iPhone 17 models, iPhone Air, iPhone 16 models, iPhone 15 Pro, and iPhone 15 Pro Max. On the iPhone 17 lineup and iPhone Air, Adaptive Power is enabled by default; on supported iPhone 16 models and iPhone 15 Pro/Pro Max, it is off by default.
Which iOS 26 Battery Features Should You Use?
For most users, the most useful starting point is simply:
Settings → Battery
Check Daily Usage, review Battery Insights, and examine App and System Activity Usage before changing settings.
If you regularly need extra battery life, consider Low Power Mode. If you have a compatible iPhone and iOS 26, Adaptive Power can handle some power-saving adjustments automatically.
Most importantly, don’t treat every high battery-usage reading as a problem. iOS 26 gives you more information precisely so you can compare your current usage with your normal behavior and determine whether the drain is actually unusual.
Frequently Asked Questions
How do I see which apps are draining my iPhone battery?
Go to Settings → Battery. iPhone shows battery usage by app and system activity. On current iOS versions, you can tap View All Battery Usage to see more detailed usage and compare battery activity across recent days.
Which apps are using the most battery on my iPhone?
The apps using the most battery will vary depending on how you use your iPhone. Video streaming, gaming, navigation, social media, and camera apps can naturally use more power when used extensively. A high percentage doesn’t automatically mean an app is faulty.
Why is my iPhone battery draining so fast?
Several factors can cause faster battery drain, including heavy screen usage, high brightness, background activity, location services, poor cellular coverage, gaming, video streaming, software activity, and battery aging. Check Settings → Battery to identify unusual patterns before blaming a specific app.
How do I check battery usage by app on iPhone?
Open Settings → Battery and look under App and System Activity Usage. You can select an app to see its battery activity and, on supported iOS versions, compare its usage with previous days. Tap View All Battery Usage for a more detailed history.
Does Background App Refresh drain iPhone battery?
It can contribute to battery usage because suspended apps can perform certain tasks in the background. However, you don’t necessarily need to disable it for every app. If a particular app shows unusually high background activity, consider managing Background App Refresh selectively rather than turning it off everywhere.
Does closing apps save battery on iPhone?
Generally, you don’t need to force-close apps simply to save battery. iOS manages suspended apps automatically. Force-closing an app can be useful when it’s frozen or behaving incorrectly, but repeatedly closing every app isn’t a reliable battery-saving strategy.
Why is my iPhone battery draining after an iOS update?
Battery drain can temporarily increase after an iOS update while the iPhone completes background processing and setup-related tasks. Check Settings → Battery for available Battery Insights, such as Ongoing iOS Update or Ongoing Device Setup, and give the device some time before concluding that the update caused a permanent battery problem.
How do I know if my iPhone battery needs to be replaced?
Check Settings → Battery → Battery Health or Battery Health & Charging, depending on your iPhone model and iOS version. If iPhone reports that the battery’s health is significantly degraded or recommends service, battery replacement may be appropriate.
Does poor cellular signal drain iPhone battery?
Yes. When your iPhone is searching for or maintaining a connection in a low-signal environment, it can use additional battery power. If you notice faster drain in areas with poor reception, cellular coverage may be contributing to the problem. Using Wi-Fi when available can also help.
Can one app cause my iPhone to get hot and drain battery?
Yes, an app can contribute to increased battery usage and heat, particularly when it performs intensive processing, uses location services, streams video, or performs substantial background activity. However, heat and battery drain can have other causes too. Check the Battery section for repeated unusual usage rather than judging the app from a single incident.
Conclusion
The fastest way to find what’s using your iPhone battery is to open Settings → Battery and review App and System Activity Usage. Don’t assume the app with the highest percentage is automatically the problem. Instead, look for unusual background activity, unexpected battery use, excessive heat, or patterns that continue over several days.
If your iPhone battery is still draining unusually fast, continue with our iPhone battery draining fast troubleshooting guide for a step-by-step diagnosis and fixes.
Read More:
Why Is My iPhone Battery Draining So Fast?
How to Check iPhone Battery Health
Why Is My iPhone Getting Hot and Losing Battery?
How to Stop Background Apps From Draining iPhone Battery
Does Background App Refresh Drain Battery?
Does Closing Apps Save Battery?
iPhone Battery Drain After iOS Update
Rishi Sanuj is write article related to Tech and Gadget, Gaming, AI Tools, Software with 8+ years of experience covering PlayStation, and next-gen gaming trends.