There are several methods for our mobile to consume less battery, but sooner or later, the simple fact of having the device on will cause the battery to run out and the terminal to turn off.
But before that happens, probably when the battery is around 15%, you will see a message on the screen of your Android encouraging you to activate the “Energy saving” mode. What does it consist of exactly?
This is How The Energy Saving Mode of your Android Mobile Works
The “battery saving” or “power saving” mode is a function used in laptops, as well as other mobile devices such as smartphones and tablets. designed to reduce energy consumption.
Windows 10, for example, allows you to activate the laptop battery saver from the Settings menu (entering “System -> Battery”), and there are also applications such as the Chrome browser, which includes a saving mode to consume less when running from a laptop.
In the case of Android, the “Energy saving” mode performs a series of adjustments that affect the performance and functionality of the device. Some of these settings are:
- Limit processor frequency and RAMwhich can cause apps to run slower or quit unexpectedly.
- disable or reduce notification vibration, sound, and lightingwhich can cause you to miss some important alerts.
- disable or reduce automatic data synchronizationwhich can cause you to not receive emails, messages or social media updates instantly.
- disable or reduce the use of location serviceswhich may affect the operation of some applications that rely on GPS or Wi-Fi to determine your position.
- disable or reduce screen brightnesswhich can make visibility difficult in bright or low light conditions.
- On some versions of Android too dark mode will automatically turn on.
These settings may vary depending on the model and version of Android you have, and you can also customize them according to your preferences.
How to Manually Activate and Configure The “Energy Saving” Mode on Android
The “Energy saving” mode can be activated manually from the device settings, or automatically when the battery reaches a certain level (for example, 15% or 5%). It can also be disabled at any time if you need to restore normal device performance or functionality.
To manually activate the energy saving mode, enter the general menu of “settings” from Android, go to “Battery” and simply activate the tab “Use battery saver”.

Here you will also find the option “Program”, which will allow you to activate the battery saver according to your routines or according to the percentage of remaining battery that you determine yourself.

In addition to all this, we will also see the option “Extreme battery saver”, which further extends battery life at critical moments.

This extreme saving mode pauses most applications and notifications, except those that we have previously established as “essential applications”. Wi-Fi, some network connections, “Hey Google” and background activity are also disabled.
Disadvantages of Using the “Battery Saving” Mode on Android
“Power Saving” mode is a useful tool for extending battery life when you don’t have access to a charger or power source. However, it also has some disadvantages that you should be aware of before using it. Some of these disadvantages are:
- Can affect user experienceas applications may perform worse or be unavailable.
- Can interfere with some essential functionssuch as calls, messages or alarms.
- May cause compatibility issues with some accessories or external devices, such as headphones, speakers, or smartwatches.
- May cause a rebound effectsince when deactivated the device can consume more battery than normal to compensate for the time it was in “Power saving” mode.
As you can imagine, all these aspects prevent us from using the mobile normally, so we should activate it only when strictly necessary. The ideal is to maintain good battery management, avoiding applications that consume a lot of power, using a suitable charger and charging the device frequently (experts recommend always having a charge level between 40% and 80%).