Google has recently introduced a new “Excessive Wake Lock” metric for Android app developers. If an application exceeds the threshold set by Google, the Google Play Store will display a red warning banner on its download page, alerting users to potential issues.
Wake locks allow applications to prevent a device from entering sleep mode, ensuring that certain processes can continue running in the background even when the screen is off. However, if an app repeatedly blocks sleep without a legitimate need, it can drain the device’s battery excessively.
This crucial metric was developed in collaboration between Google and Samsung, combining Samsung’s deep, real-world insights into user experience and battery performance with analytical data from the Android platform. Since April 2025, Google has been refining the algorithm based on developer feedback.
The new system is now officially live, and Google has set strict behavioral thresholds to discourage abuse. If, within a 24-hour user session, the total duration of non-exempt wake locks exceeds two hours, the session will be flagged as an excessive wake lock event.
According to Google’s developer policy:
“Android vitals gives some exemptions to partial wake lock usage in scenarios where there is a clear user benefit of the partial wake lock, and there’s no better way to achieve that result without the partial wake lock. For example, if an app is playing audio for the user, there’s a clear benefit to keeping the device awake and there’s no way to play the audio without keeping the device awake. In that case, the partial wake lock time is not counted against the Android vitals.”
However, if more than 5% of an app’s sessions over a 28-day period contain excessive partial wake locks, this metric may negatively impact the app’s visibility and ranking on Google Play.
For applications that clearly fail to meet the benchmark, Google will display a red banner warning on the Play Store listing. Such a message could easily deter potential users from downloading the app, leading to declines in installation rates. Through this policy, Google aims to motivate developers to optimize energy efficiency and adopt more responsible design practices.
The updated policy will officially take effect on March 1, 2026.
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