iPhone battery drain overnight is a phenomenon where your phone suddenly loses 5 - 10% battery even though you are not using it. In general, this is considered a fairly common problem and often recurs among long-time iPhone users. You must be wondering what happened to your iPhone while you were sleeping?
Why does iPhone battery drain overnight?
Reasons why iPhone battery drains overnight
The iPhone battery drain overnight can also happen for a number of reasons below:
iPhone battery is weak
If you have been using your iPhone for a long time or have not paid attention to how you use the battery, you may encounter a situation where your iPhone battery runs out overnight. This is a sign that your iPhone battery is damaged and needs to be handled promptly. Some of the main reasons why your iPhone battery is damaged are:
- Charge your iPhone while still using it.
- Overcharge iPhone and leave it overnight continuously.
- Using iPhone too much without rest.
- Wait for the iPhone battery to completely run out before recharging.
- Using non-genuine or unsuitable iPhone battery.
Utility service is not turned off
One of the reasons why your iPhone battery runs out overnight is because you don't turn off utility services. These services will activate applications that run in the background and consume a lot of battery. Some utility services that often drain the battery when the iPhone is not in use are: WiFi Network, Mobile Network, Bluetooth, Location, AirDrop.
Let many applications run in the background
The reason why your iPhone battery runs out overnight is because you don’t turn off background apps. These apps constantly use WiFi/4G to send and receive data, consuming a lot of battery. For example, Facebook, Zalo, Messenger, etc. are apps that often run in the background and consume a lot of energy.
iOS software error
If your iPhone battery runs out overnight, it may have a software conflict that is common on iOS operating systems. In addition, the applications on your iPhone may also conflict, which will also affect the battery power of the device.
Screen brightness is too bright
One of the reasons why your iPhone battery runs out overnight is because you set the screen brightness too high. Setting the screen brightness too high will increase the amount of power your device consumes, even if you don't use it. Not only that, a screen that is too bright can also cause eye discomfort, reduce vision, and affect your health.
How to fix iPhone battery drain overnight?
Below are the most effective and easiest ways to fix the problem of iPhone battery draining overnight that you may need:
- Turn off Wi-Fi and Mobile Data Connection
Even when not in use, network connections are still active in the background and are constantly trying to connect so that the iPhone can get the best signal strength. This is considered a major cause of battery drain. Therefore, to avoid battery drain on the iPhone, it is necessary that you turn off Wi-Fi and Mobile Data before going to bed.
- Turn off Bluetooth
Another reason why your iPhone battery drains quickly overnight is because of keeping Bluetooth on. Bluetooth is constantly searching for nearby devices to quickly connect to. So it reduces the battery life of your iPhone.
- Turn on Airplane Mode
“Airplane Mode” turns off all wireless connections on your iPhone. So you don’t have to turn off Wi-Fi or Bluetooth individually. Plus, it saves your iPhone a significant amount of power and extends battery life.
- Adjust screen brightness settings for iPhone
By default, Auto-Brightness is turned on so that your iPhone automatically adjusts the brightness of your screen based on the ambient light. However, if you set the screen brightness to a high level, your iPhone will have to consume a lot of battery power to keep the screen bright according to your settings. So, adjust the screen brightness setting to the lowest, most comfortable level to optimize your iPhone's battery performance.
- Use Night Shift mode
This feature, when activated, will automatically change the color of the iPhone screen, eliminating blue light at specific hours of the day, including at night. Thereby saving a lot of battery life for your iPhone.
- Turn on “Low Power Mode” feature
If you don't like turning off your iPhone at night, consider turning on Low Power Mode. When enabled, it automatically limits background activity and disables power-hungry apps to optimize your device's battery life.
- Turn off Background App Refresh
Background App Refresh, when enabled, automatically updates the app content on your iPhone whenever it is connected to Wi-Fi or Cellular Data. While this is a great feature, it is also considered one of the main causes of battery drain on your iPhone. Therefore, I recommend you turn this feature off.
- Turn off Location
Location Services help iPhone users improve their overall experience. However, there is a significant downside: this feature consumes a significant amount of battery. So if you enable it and leave it running overnight, your iPhone will lose a lot of battery.
By turning off Location Services on your iPhone, you can extend the overall life of your battery and prevent any future location issues. However, if you use a lot of location-based apps, this option should be considered, or you should only turn it off when you go to bed.
- Delete unused applications
The most common reason why your iPhone battery drains quickly overnight is probably because of unnecessary or rarely used applications on your device. Therefore, if necessary, you should remove these types of applications from your iPhone.
Basically, mobile apps tend to consume power even when you are not using them and continuously affect the battery life. However, if you are not aware of which apps might be affecting your device the most, you can check them precisely from “Screen Time” in Settings.
- Please update the app and new iOS version if available
If any app has a major bug, it can drain your iPhone battery quickly. To address the issue, publishers often release updates for their apps. So make sure all the apps on your device are up to date.
- Reset iPhone
The last but not least solution is to reset your iPhone when the above solutions do not bring the expected results. Basically, when you perform this solution, any software-related glitches that affect battery performance will be fixed most thoroughly.
Above are the most common and effective ways to fix the problem of iPhone battery draining overnight. Please refer to and fix this problem on your iPhone so that your experience is not interrupted.
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