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iPhone Battery Draining Fast All of A Sudden? Here's the Fix

Have you noticed that your iPhone battery is draining too fast all of a sudden and not holding the charge for long? This is one of the most common problems that iOS users have reported and you may expect this to happen without any noticeable reasons.

In this guide, we will explain why your iPhone battery drainning too fast all of a sudden and how to fix the issue. Also, you can learn some tips to save battery life on your iPhone. Let's check out.

Why is iPhone Battery Draining Fast All of A Sudden?

If you run into the problem of iPhone suddenly losing battery, you may need to know why your iPhone doesn’t hold the charge and the battery drains fast overnight.

  • Inappropriate settings: Settings on the device location services, display, notifications may consume the battery and ultimately lead to the repaid battery draining.
  • Apps are not closed: Resources are required for apps to run. When you don’t use an app and don’t close it, it will still consume the battery power.
  • Major iOS update: A new iOS update like the recent iOS 17 update brings many big changes to your iPhone features, which can make the device drains battery after than before.
  • Poor Cellular Service: When you are in an area of bad network coverage, your iPhone needs to increase the power to the antenna to connect to a network, which drains your iPhone battery fast.
  • iPhone battery health: If your iPhone's battery capacity is low, less than 80%, the battery may drain very quickly.

General Tips When iPhone Battery is Draining Too Fast

There are several things you should do as soon as you discover that your iPhone's battery is draining fast all of a sudden. These tips will help prevent this problem in the future.

  • Do not charge the iPhone if you are going to store it for an extended period of time. If you are not using the device for a while, it is advisable to charge the battery only to around 50%. If you store the iPhone when the battery is completely discharged, it could go into a deep discharge state and be incapable of holding a charge. On the other hand, if you store the battery at 100% charge, the battery could lose capacity, resulting in a shorter battery life.
  • If you're going to store your iPhone for a very long time, like 6 months or more, you'd better charge the device to 50% percent every 6 minths.
  • If you charge your iPhone when it is inside a phone case, it may generate excess heat and affect the battery capacity. So, remove the iPhone case while charging.
  • When you are not using the iPhone, it is suggested to power down the device to avoid unnecessary battery use.
  • Keep the iPhone in a cool, dry environment of less than 32° C (90° F). Avoid exposing your iPhone to ambient temperaturs.

Proved Solutions to Fix iPhone Battery Suddenly Draining Issue

The following are just some of the things you can do when your iPhone's battery is suddenly draining too fast:

3.1 Check iPhone Battery Usage

If you find your iPhone battery draining fast all of a sudden, you should examine all the apps and find out which appss eat your iPhone battery the most. Go to Settings > Battery > Battery Usage, you can see the battery percentage used by each app. If you find any app that you seldom use is eating your battery, you can try to remove it.

check iphone battery usage

3.2 Remove Unnecessary Widgets

As helpful as they can be, widgets can be serious battery drainers since they have to refresh every few minutes to present the most accurate information. To remove some of the widgets you don't need, follow these simple steps:

  • Press and hold on any widget you would like to remove.
  • Tap on "Remove Widget" that appears and then tap "Remove" to confirm.

cut down widges

3.3 Turn Off Background Refresh

As the name suggests, this feature allows your apps to continually refresh in the background even when you are not using them. The problem is that it can really drain the battery. To turn it off, follow these simple steps:

  • Go to Settings > General.
  • Tap on "Background App Refresh" and turn it off.

turn off background app refresh

3.4 Turn Off Wi-Fi When Not in Use

Wi-Fi can also be a battery drainer and when you're not using it, it may be a good idea to turn it off. Just go to Settings >WiFi and turn it off.

lost turn off and turn on wifi

3.5 Turn Off Bluetooth Service

Bluetooth can also cause your iPhone's battery to drain faster than necessary. Turning Bluetooth off is a good idea, especially when you're not using it. Here's how: Go to Settings > Bluetooth and turn it off.

turn off bluetooth

3.6 Turn Off iPhone Once a Week

Another neat solution you can try is turning off your iPhone once a week. This trick is known to resolve battery issues, especially if you've noticed that your battery has been draining for some time. Powering down your iPhone can help eliminate crashing apps and any technical issues that can pile up over time.

When turning off the device however, don't hold down the power and the home button at the same time. This is a "hard reset" that should only be used when absolutely necessary. To turn off the iPhone correctly, hold down the power button until the "slide to power off" slider appears. Swipe the power icon and wait while the iPhone shuts down.

restart iphone

3.7 Disable Unnecessary Visual Effects

One of the main advantages of an iPhone is a Graphics Processing Unit that allows the device to display many beautiful visual effects. But the GPU and these effects can drain the iPhone's battery and should be the first to remove if your iPhone battery is suddenly draining too fast. Here's how:

  • Go to Settings > General and then tap "Accessibility".
  • Tap on "Reduce Motion" and then tap on the switch next to it to turn it off.

turn off reduce motion effect

Fix iPhone Battery Suddenly Draining Issue with 3rd-party Tool

Sometimes, these issues can be caused by bugs in the iOS system and in this case, it can be very difficult to identify the problem and fix it. Fortunately for you, there is a professional tool that can help you fix this and many other software related issues.

This tool is FoneGeek iOS System Recovery which fixes all problems without data loss. This program is compatible with all versions of iOS and supports all iPhone models, even iOS 17/16 and iPhone 15/14. The following is how to use FoneGeek iOS System Recovery to fix battery issues:


Step 1: Download FoneGeek iOS System Recovery on your computer and then launch it. Click on "Standard Mode" in the main window.

repiar operating system

Step 2: Now connect the problematic iPhone to the computer and wait for the program to detect it. If not, follow the instructions on the screen to put the device the DFU or recovery mode.

put iphone in recovery mode

Step 3: Choose the matching firmware and click on "Download". After that, click on "Fix Now" and the program will begin fixing the device immediately. Ensure that the device remains connected to the computer until the process is complete.

download firmware

Your iPhone will restart normally when the process is complete and your battery draining problems will be gone.


Bonus Tips to Save Battery Life on Your iPhone

  • Enable Low Power Mode: The Low Power Mode feature on iPhone will prevent the battery from draining fast and make it last for several hours longer than in normal mode. Go to iPhone Settings, click on Battery and turn on "Low Power Mode".
  • Disable Location Services: Many location apps would use your live location for different purposes. However, this will result in the huge loss of the iPhone battery. Thus you can disable location services if you don’t use these apps. Head over to Settings > Privacy > Location Services to toggle it off.
  • Turn Off Raise to Wake: The Raise to Wake feature on iPhone will wake the screen automatically when you pick the device up from flat on a surface. You can turn it off by going to Settings > Display & Brightness > Raise to Wake to save your iPhone battery life.
  • Turn On Airplane Mode: If you are in a poor signal area, you’d better turn on Airplane Mode. This will prevent your iPhone from constantly searching for wifi signals.


The iPhone's battery issues can be caused by a lot of factors. Luckily, the solutions above should be able to help you get your device working normally again. If your iPhone hardware goes wrong, you can contact Apple for help to repair or replace the battery.

Joan J. Mims

Joan J. Mims is interested in researching all tips about iPhone, iPad and Android. He loves to share useful ideas with all users.

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