Battery Saver Active means your phone has entered a power-saving mode that reduces background activity and other power use to extend battery life. This notification appears when the feature is triggered automatically or turned on manually, and it appears under different names depending on your device, iPhone calls it Low Power Mode, while Android devices call it Battery Saver.
What does battery saver active mean on your phone?
The "Battery Saver Active" message is a system notification that your phone is actively conserving power by limiting non-essential functions. On iPhone, the equivalent feature is called Low Power Mode. On Android, it is called Battery Saver or, on some devices, Low Power Mode. Regardless of the name, the core purpose is the same: reduce power consumption to give you more time between charges.
What battery saver active means on iPhone
On iPhone, the feature is called Low Power Mode. Apple states that Low Power Mode reduces power use when the battery gets low and optimizes performance for essential tasks like calls, messages, email, and internet access. On iPhone models with ProMotion displays, it limits the refresh rate to 60 frames per second.
Exact path and controls
The steps to control Low Power Mode depend on your iPhone model:
- iPhone 15 and later: Open Settings > Battery > Power Mode > Low Power Mode.
- iPhone 14 and earlier: Open Settings > Battery > Low Power Mode.
- Control Center: Open Control Center and tap the battery icon or Low Power Mode control, if you have added it.
- Siri: Say "Siri, turn on Low Power Mode" or "Hey Siri, turn off Low Power Mode."
Documented limits on iPhone
Low Power Mode turns off automatically when iPhone charges to 80 percent or higher. Apple warns that some tasks may run more slowly while the mode is active. Additionally, if Adaptive Power is enabled on a supported device, Low Power Mode turns on when the battery drops below 20 percent.
Supported iPhone models
Apple’s user guide lists support for iPhone XR, XS, XS Max, iPhone 11 series, iPhone SE (2nd and 3rd generation), iPhone 12 series, iPhone 13 series, iPhone 14 series, iPhone 15 series, and iPhone 16 series.
What battery saver active means on Android
On Android, the comparable feature is called Battery Saver or Low Power Mode, depending on the device and manufacturer. Google states that Battery Saver is an optional mode designed to give more time between charges.
Exact path and controls
The steps to control Battery Saver vary by device:
- Most Android phones: Open Settings > Battery > Battery Saver.
- Pixel phone: Open Settings > Battery > Battery Saver > Use Battery Saver.
- Pixel Tablet: Open Settings > Battery > Battery Saver > Use Battery Saver.
- Quick settings on Pixel Tablet: Swipe down, tap Edit, drag the Battery Saver tile up, then tap Battery Saver to turn it on or off.
- Samsung documented path: Settings > Device care > Battery > (under: What battery saver active means on Android)
Documented limits on Android
On Pixel Tablet, Standard Battery Saver limits visual effects and background activity and turns on Dark theme. Extreme Battery Saver limits visual effects and background activity, turns on Dark theme, and pauses non-essential apps and their notifications. On Pixel devices, Battery Saver can be scheduled with Schedule and reminders and a battery percentage threshold.
Supported devices and versions
Google’s Android help notes that the exact path is for Android devices generally, but if your phone behaves differently, you should visit your carrier or manufacturer support site. Google’s Pixel Tablet page documents both Standard Battery Saver and Extreme Battery Saver for Pixel Tablet. Google’s Pixel phone page documents Battery Saver scheduling and reminders for Pixel phones.
What changes when battery saver is active
The documented effects across Apple, Google, and Samsung devices include:
- Reduces background activity or background data use.
- Limits performance or some non-essential functions.
- May disable or reduce power-heavy features such as Always On Display on Samsung devices.
- May turn on Dark theme on Google Pixel devices.
How to turn battery saver on or off
To manually toggle the feature, use the exact paths listed above for your device. On iPhone, you can turn on battery saver through Settings or Control Center. On Android, you can turn it on or off through Settings or Quick settings. For detailed step-by-step instructions, you can refer to the hub page on how to turn on battery saver. Note that turning off optimized charging is a separate setting that affects how your battery charges, not how it discharges, and you can check for battery draw in your device’s battery usage menu to identify which apps consume the most power.
Frequently Asked Questions
Does Battery Saver Active damage my battery?
No. Using Battery Saver mode does not damage your battery. It is designed to reduce power consumption and can actually help prolong the overall lifespan of your battery by reducing stress during low-charge conditions.
Will I still receive calls and texts when Battery Saver is active?
Yes. Both iPhone Low Power Mode and Android Battery Saver prioritize essential functions like calls and messages. You will still receive calls and texts, though some non-essential notifications may be paused or delayed.
Can I use Battery Saver mode all the time?
You can manually turn it on at any time, but it is not designed for constant use. On iPhone, Low Power Mode turns off automatically when the battery reaches 80 percent. On Android, you can schedule it, but keeping it on permanently may limit performance and background features you rely on.
Does Battery Saver mode affect charging speed?
No. Battery Saver mode does not affect how fast your phone charges. It only manages power consumption while the device is in use, not while it is plugged in and charging.
Why did Battery Saver turn on by itself?
On iPhone, Low Power Mode can turn on automatically when the battery drops below 20 percent if Adaptive Power is enabled. On Android, you may have set a schedule or a battery percentage threshold that triggers Battery Saver automatically.
