iPhone battery drain overnight is a phenomenon where your phone suddenly loses 5-10% of its battery even though you haven’t used it. Generally, this is considered a common issue frequently experienced by long-time iPhone users. You might be wondering what happened to your iPhone while you were asleep?
Reasons Why iPhone Battery Drains Overnight
Causes of iPhone Battery Drain Overnight
The issue of iPhone battery draining overnight can occur due to several reasons below:
iPhone Battery Aging
If you have been using your iPhone for a long time or haven’t paid attention to battery usage habits, you may encounter the issue of your iPhone being out of battery overnight. This is a sign that your iPhone battery has aged and needs to be addressed promptly. Key reasons for battery aging include:
- Charging your iPhone while still using it.
- Overcharging your iPhone and leaving it plugged in overnight.
- Excessive usage of your iPhone without giving it a break.
- Waiting for your iPhone to completely drain before recharging.
- Using non-genuine or incompatible iPhone batteries.
Unused Services Not Turned Off
One reason your iPhone might drain battery overnight is that you haven’t turned off various services. These services can activate background apps that consume a lot of battery. Common services that often drain battery when the iPhone is not in use include: Wi-Fi, Mobile Data, Bluetooth, Location Services, and AirDrop.
Multiple Background Apps Running
The battery drain issue overnight is also due to background apps that are not closed. These apps continuously use Wi-Fi/4G to send and receive data, consuming significant battery power. For example, Facebook, Zalo, Messenger, etc., are apps that frequently run in the background and drain energy.
iPhone battery drain can be caused by many background apps.
iOS Software Issues
If your iPhone drains battery overnight, it may have software conflicts commonly found in iOS operating system versions. Additionally, app conflicts on your iPhone can also affect the battery life of the device.
Screen Brightness Set Too High
One issue that can cause your iPhone to drain battery overnight is having the screen brightness set too high. Excessive screen brightness increases the power consumption of the device, even when not in use. Furthermore, high brightness can cause eye strain, reduce vision, and affect health.
How to Fix iPhone Battery Drain Overnight?
Below are effective and easy methods to address the issue of iPhone battery drain overnight that you may need:
Turn Off Wi-Fi and Mobile Data
Even when not in use, network connections continue to operate in the background and constantly attempt to connect to provide the best signal strength for your iPhone. This is a major cause of battery drain. Therefore, to prevent battery loss for your iPhone, it’s essential to turn off Wi-Fi and Mobile Data before going to bed.
Turn Off Bluetooth
Another reason your iPhone battery drains quickly overnight is that Bluetooth is always turned on. Bluetooth continuously searches for nearby devices to connect quickly, which reduces the battery life of your iPhone.
Enable Airplane Mode
Airplane Mode will turn off all wireless connections on your iPhone. Thus, you don’t need to turn off Wi-Fi or Bluetooth individually. Additionally, this mode helps your iPhone save significant energy and extend battery life.
Adjust iPhone Screen Brightness Settings
By default, the Auto Brightness feature is enabled so your iPhone automatically adjusts the screen brightness based on the surrounding light. However, if you set the screen brightness to a high level, your iPhone will consume a lot of battery to maintain the brightness as per your settings. Therefore, adjust the screen brightness settings to a comfortable and lower level to optimize battery performance on your iPhone.
Use Night Shift Mode
This feature, when activated, automatically changes the color of your iPhone screen, eliminating blue light during specific hours of the day, including at night. This can save a significant amount of battery life for your iPhone.
Enable Low Power Mode
If you do not want to turn off your iPhone at night, consider enabling Low Power Mode. When activated, it automatically limits background activities and disables battery-draining apps to optimize battery life for your device.
Turn Off Background App Refresh
The Background App Refresh feature, when activated, continuously updates app content on your iPhone whenever the device connects to Wi-Fi or Mobile 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 turning off this feature.
Disable Location Services
Location Services enhance the overall user experience on the iPhone. However, a significant downside is that this feature consumes a considerable amount of battery. Therefore, if you enable it and leave it running overnight, your iPhone will use a lot of battery. By turning off Location Services on your iPhone, you can extend the overall battery life and prevent future location issues. However, if you frequently use location-based apps, consider this option or only disable it when going to sleep.
Delete Unused Apps
The most common reason your iPhone battery drains quickly overnight may be due to unnecessary or rarely used apps on your device. Therefore, if necessary, remove such apps from your iPhone.
In general, mobile apps tend to consume energy even when you are not using them, continuously affecting battery life. However, if you are unsure which apps may have the most impact on your device, you can check them accurately from the “Screen Time” section in Settings.
Update Apps and iOS Version
If any app encounters a significant bug, it can quickly drain your iPhone battery. To resolve this issue, publishers usually release updates for their apps. Therefore, ensure that all applications on your device are up to date.
Reset Your iPhone
The final but equally important solution is to reset your iPhone when the above solutions do not yield the desired results. Essentially, when you perform this solution, any software issues affecting battery performance will be thoroughly resolved.
These are the most common and effective ways to address the issue of iPhone battery drain overnight. Please refer to and implement these solutions on your iPhone to ensure an uninterrupted experience.
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