Low battery mode is a built-in feature on smartphones that reduces power consumption when the battery is low, helping you extend usage time until you can charge. On Apple devices it is called Low Power Mode, while on Android and Samsung phones it is known as Battery Saver or Power saving mode.
What is low battery mode?
Low battery mode is a power-saving feature that reduces the amount of power your device uses when the battery gets low. On iPhone and iPad, Apple calls it Low Power Mode, and on Android and Samsung devices it is documented as Battery Saver or Power saving mode. The core purpose is to optimize essential tasks like calls, messages, email, and internet access while limiting background activity to extend battery life. Some tasks may run more slowly when this mode is active.
What does low battery mode do?
When enabled, low battery mode imposes specific changes and limits to conserve power. According to Apple documentation, these include:
- 5G is reduced or turned off on most devices; on iPhone 12 and iPhone 13 models, 5G is handled with exceptions for video streaming and large downloads.
- On iPhone 12 models, Low Power Mode disables 5G standalone where available.
- Auto-Lock defaults to 30 seconds.
- Display brightness is reduced.
- Display refresh rate is limited to 60 Hz on iPhone and iPad models with ProMotion display.
- iCloud Photos is temporarily paused.
- Automatic downloads, email fetch, and background app refresh are reduced.
On Android and Samsung devices, Power saving mode can limit background network usage and syncing. Some Samsung Galaxy devices offer custom switches or settings before enabling the mode, and users in certain regions can choose between Mid or Max Power Saving mode.
How to turn on low battery mode on an iPhone
To enable Low Power Mode on an iPhone:
- Go to Settings > Battery and turn on Low Power Mode.
- On iPhone 15 or later, go to Settings > Battery > Power Mode > Low Power Mode.
- You can also add it to Control Center through Settings > Control Center > Customize Controls, then tap the Low Power Mode control there.
- Use Siri by saying “turn on Low Power Mode” or “turn off Low Power Mode.”
Low Power Mode is supported on iPhone XR, XS, XS Max, iPhone 11 series, iPhone SE (2nd gen), iPhone 12 series, iPhone 13 series, iPhone SE (3rd gen), iPhone 14 series, iPhone 15 series, and iPhone 16 series. For quick access, adding the toggle to Control Center lets you turn on battery saver from anywhere on your phone.
How to turn on battery saver on Android and Samsung
On Android, turn on battery saver or low power mode from the battery settings. Check carrier or manufacturer support for device-specific steps, as there is no single universal menu path for all Android phones.
For Samsung Galaxy devices, the feature is called Power saving mode. The documented paths include:
- Settings > Battery and device care > Battery > Power saving mode
- Settings > Battery > Power saving, then toggle the switch to activate it
- On some older Galaxy devices: Settings > Device care > Battery > Power saving
Some Samsung devices offer custom switches or settings before enabling Power saving mode, and can limit background network usage and syncing. Samsung Galaxy devices in Singapore can choose between Mid or Max Power Saving mode.
When does low battery mode turn off?
Low Power Mode on iPhone automatically turns off when the device charges to 80% or higher. You can also manually turn it off at any time by going back to the same settings and toggling it off. If you are troubleshooting battery issues, you might need to check for battery draw by monitoring which apps or settings are consuming power unexpectedly. In rare cases where a phone stops charging entirely, you may need to revive a battery that won't charge using specific hardware or service steps. Understanding the difference between low battery mode and turning off optimized charging helps you decide which feature to use in different situations.
Frequently Asked Questions
Does low battery mode damage the battery?
No, low battery mode does not damage the battery. It is designed to temporarily reduce power consumption and is safe for regular use when needed.
Can I still receive calls and messages in low battery mode?
Yes, calls, messages, email, and internet access remain available. Some tasks may run more slowly, but core communication functions continue to work.
Will low battery mode affect my alarm clock?
No, alarms will still sound when low battery mode is enabled. Alarms are considered essential functions and are not affected by power-saving settings.
Does low battery mode work the same on all Android phones?
No, the feature name and available options vary by manufacturer. Some Android phones call it Battery Saver, while others use Power saving mode, and settings may differ between brands like Samsung, Google, or OnePlus.
Can I use low battery mode while charging?
Yes, you can manually enable low battery mode while charging, but it will automatically turn off when the battery reaches 80% or higher on iPhone. On Android, behavior may vary by device.
