Starting March 1, next year, the Google Play Store will show warnings on app listings that cause excessive battery drain. The Android apps that keep devices awake for a longer time will also be excluded from the prominent discovery surfaces, such as recommendations. A user session is considered excessive when it involves more than 2 cumulative hours of non-exempt wake locks within 24 hours. An app will be flagged for poor performance if more than 5 percent of its user sessions in 28 days exceed this threshold. In such cases, developers will be notified.