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Why Your iPhone Gets Hot, Drains Battery And The Fix!


In this guide, I’ll explain why your iPhone gets hot, drains battery and show you how to fix the problem for good.

Overheating and battery draining problems in iOS devices can be attributed to software errors or hardware damage. In earlier devices, hardware damage like a depreciating battery or other relevant components is likely to blame. In new devices, rogue apps and system bugs are often the culprits.

There are different reasons why your iPhone gets hot and drains battery fast. This article will address various reasons for this and ways you can fix it.

What Cause iPhone Overheating?

CPU: In case you don’t know, your iPhone works like a computer, with a CPU. Overworking this CPU can cause overheating. Your computer has a fan which helps to cool your CPU and curb overheating. However, your iPhone has no fan and this increases the risk of overheating.

COPYRIGHT_NOVA: Published on https://www.novabach.com/why-your-iphone-gets-hot-drains-battery-and-the-fix/ by Daniel Barrett on 2022-05-29T22:00:57.000Z

The CPU is the part of your computer that heats up the fastest. It is also one of the parts that cause your iPhone overheating. Especially because there is no fan to prevent that.

Apps: On your iPhone, various apps run simultaneously in the background. Normally, these apps should use a portion of your CPU while running. Unfortunately, there are times when your CPU gets used up to about 100%. When this happens, your iPhone gets hot and drains battery fast.

Your apps can overload your iPhone’s CPU. This is definitely not good for your phone as all that workload can increase the internal temperature of your phone. Apps drain your battery and so running a lot of them in the background will cause your battery to drain really fast and in turn heat up your phone.

Usage: Another thing that can cause your iPhone to overheat is if too frequent usage. If you are constantly using your iPhone it is bound to get warm. However, if you frequently use it for heavy tasks like gaming, there is a high chance of your iPhone overheating.

This is because your phone battery is constantly working, even more for heavy tasks. This cause the internal temperature of your phone to increase rapidly.

Overcharging: When you plug your iPhone for long even after the battery is at 100%, you are overcharging it. When you overcharging, the temperature increases and the battery gets damaged little by little. Hence, your iPhone gets hot and drains battery faster.

After you have known what causes your iPhone to overheat, you should know how to fix it. The rest of this article will put you through ways to fix the overheating state of your iPhone.

Clear All Background Apps

Keeping apps suspended or running in the background for long is one of the common reasons that could make the app go rogue. There is a higher chance that any of these background apps become corrupted and crashed. When this happens, other system functions and processes could become adversely affected.

If bad apps are affecting the processor, chances are that your device would start to show symptoms of overheating and battery draining. As resolution, clear all background apps on your iPhone with the following procedures.

If you’re using an iPhone X or later model, performing these steps will end all background apps:

  • Go to the Home screen to get started.
  • Then swipe up from the bottom of the screen and then pause slightly in the middle.
  • Swipe right or left to find Messages app.
  • Then swipe up on the Messages app card/preview to close it.
  • If you’re using an iPhone 8 or earlier model, this is how you end all background apps:
  • Double-press the Home button to view your most recently used apps.
  • Then navigate through app previews by swiping left or right.
  • And to close the app, swipe up on its preview.
  • Follow the same steps to end or close all background apps until no apps is left running or suspended on your iPhone.

Also read: How to show battery percentage on iPhone XR

Delete Rogue Apps

Your iPhone is programmed with a feature that tracks apps that are often crashing. This is called the iOS Analytics Data logs, containing apps crash reports. If any of your apps is acting up, there’s a tendency that they trigger processor exhaustion, which eventually results in overheating and battery draining. You can utilize this iOS feature to determine which among your apps needing rectifications. Here’s what you should do then:

  • Tap Settings from your Home screen.
  • Select Privacy.
  • Tap Analytics.
  • Then select Analytics Data to view the list of apps that’s been crashing or acting up on your device.

You can delete bad apps and reinstall the useful ones. To delete an app from your iPhone, you can use the standard and quicker method as depicted with these steps:

  • Go to the Home screen then find the app that you want to delete.
  • Once you find the app, touch and hold on the app icon until it jiggles.
  • Then tap the X on the upper-left of the icon to delete it.
  • If prompted, tap Delete to confirm that you want to delete or uninstall the app from your iPhone.

You can also access your iPhone storage to delete rogue apps straight from the applications folder. Here’s how to get there:

  • Tap Settings from the Home screen.
  • Tap General.
  • Select iPhone Storage.
  • Find and select the app(s) that you wish to remove and then tap the option to Delete App.
  • After deleting bad apps, reboot your iPhone to clear its memory cache and to refresh its system.

Turn On Airplane Mode

Another procedure you can use to fix the overheating issue with your iPhone is to enable Airplane mode on your iPhone. With Airplane mode, you will use basic functions on your phone and leave out the heavy functions that take a toll on your battery and CPU. It prevents your device from searching for signal from network bases, thereby reducing the workload on your processor.

On your iPhone, go to Home screen and select Settings. Tap “Airplane Mode” and switch it on. This will disable your iPhone’s wireless radios and features like Wi-Fi, Bluetooth, and cellular connections.

Restart Your iPhone

A simple yet very effective solution to minor software problems including overheating and battery draining inflicted by random firmware crashes and apps glitches is the so called soft reset or forced restart on the iPhone. These processes work the same in terms of refreshing the operating system but carried out in various ways, depending on the device model and operating system.

Update iOS And Your Apps

Rogue apps that caused processor exhaustion can also be remedied by installing updates. Like firmware updates, updates rolled out by app developers also contain bug fixes. Thus bug-inflicted symptoms are corrected and the main problem is addressed. If your iPhone has a stable Internet access and over 50 percent battery life, head on over to the App Store and install pending app updates with these steps:

  • Tap App Store from the Home screen.
  • Scroll down and tap on Updates.
  • Tap the Update next to the name of the app to update individual apps.
  • Tap the Update All button on the top-right corner of the screen to update all apps at once.

Aside from app updates, installing the latest iOS update for your iPhone can also help fix software-inflicted power issues including overheating and battery draining. If your iPhone has a stable Internet access, plug it into the charger then check for new updates with these steps:

  • From the Home screen, tap on Settings.
  • Select General.
  • Tap Software Update.
  • If an update is available, you will see a notification containing the update details and system requirements. Read the update information then follow the onscreen instructions to download and install the update on your iPhone.

Reboot your iPhone after updating to ensure that all new system changes are properly implemented and likewise to refresh the apps and internal memory.

Reset All Settings

Resetting your settings is also known to be effective in fixing overheating issues in your iPhone. There may be some incorrect settings on your device that are causing the overheating and battery drain. Resetting your setting will reverse everything including the problematic settings.

On your iPhone, tap “Settings” on your Home page. Select General and scroll down and tap on “Reset”. Select “Reset all settings” and enter your device passcode to continue. This will delete all customized settings on your device including your Wi-Fi passwords and wallpaper, and restore default settings. Allow your device to reboot after this process and reenable the features you want.

Reset Your iPhone

The last option on this list for you is to conduct a factory reset on your iPhone. You only have to resort to this if the overheating is caused by complex system errors. In this case, you need a full system reset. You should know that this will erase everything from your phone including personal information.

In your Settings, select General and scroll down to tap “Reset”. Select “Erase all content and settings”, type in your passcode and confirm the process.

There are various reasons why your iPhone gets hot and drains battery. Fortunately, there are also numerous ways to fix this. You can start with the simplest and move to the others until you fix the issue successfully.

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About The Authors

Daniel Barrett

Daniel Barrett

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