The Battery Saver mode on phones is supposed to be an option that can eke out the last of your battery when you get down to the very last few percent. However it appears that Google has accidentally rolled out an update to phones running the Android Pie update or Beta which enables it even when the phone is fully charged.

In a post on reddit on Thursday, Google’s Pixel team advised that it was an internal test “was mistakenly rolled out to more users than intended”.

The effect to users was a lack of apps updating in the background, location services not in use when the phone is in standby and notifications being delayed. It’s not just Pixel phones that have been affected by the bug but also the Essential Phone on Android Pie and Nokia 7+ and OnePlus 6 on the Android Pie Beta according to Android Police.

In their Reddit response, the team advised they had rolled back the battery saver setting to default for those who were affected – Google (and Apple) retain the ability to switch certain things on and off on your device, so you might have to enable it again if you prefer to have it switched on.

If you have noticed any of these issues and are running Android Pie or its Beta firmware, then you may want to check your battery saving mode to see if it is turned off or still maybe on.