With Android 15 in full development, it's time for Google to reveal new features that developers can leverage in their apps and other offerings. AI/O is meant for this universe and these abilities will emerge. One of the things that was revealed in one of the sessions is the new battery management ability in Android 15. It is so effective that it guarantees another 3 hours of usage on the smartphone.

Android 15 is better at power management
Although there are very obvious changes to the interface and what it offers users, Android 13 has a lot going on under the radar.  In one of the I/O sessions this was revealed and explained, showing how this system will be more efficient and will ensure better energy management.
From what has been explained, Android tries to intelligently postpone and run several background tasks at the same time during specified maintenance windows.  This happens when the device has been standing still for a while and its screen is off.  This state has been a core feature of Android's power management system.  Android 15 will come with improvements.

For Android 15, we've accelerated the time it takes to fall asleep (sleep is when we enter a resting state) by 50%.  This way, we fall asleep 50% faster and the result is that in some devices we tested, standby power increased by up to 3 hours.  This is a kind of general improvement in 15 that applies to all devices.

Smartphones with 3 extra hours of power
From the word some general power saving improvements will be coming to all Android devices in the future.  Specifically, it was revealed around Android 15, that Google was able to guarantee power saving that could reach the level of 3 hours on some smartphones.
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The good news is that these improvements are universal to the new version of Google's system.  Therefore, the new feature that will appear with Android 15 will eventually be present on all devices that receive the update to the latest version of the Android system.

Google is expanding this improvement to everyone
The good news is that these improvements are universal to the new version of Google's system.  Therefore, the new feature that will appear with Android 15 will eventually be present on all devices that receive the update to the latest version of the Android system.
Thus, Google revealed that Android 15 will be an improvement that goes as far as power management itself.  This example is important and will definitely be used by all manufacturers when they update their smartphones.