1 ## 8.3\. Power-Saving Modes 2 3 Android includes App Standby and Doze power-saving modes to optimize battery 4 usage. 5 6 * [H-0-1] All Apps exempted from App Standby and Doze power-saving modes 7 MUST be made visible to the end user. 8 * [H-0-2] The triggering, maintenance, wakeup algorithms and the use of 9 global system settings of App Standby and Doze power-saving modes MUST not 10 deviate from the Android Open Source Project. 11 12 * [T-0-1] All Apps exempted from App Standby and Doze power-saving modes 13 MUST be made visible to the end user. 14 * [T-0-2] The triggering, maintenance, wakeup algorithms and the use of 15 global system settings of App Standby and Doze power-saving modes MUST not 16 deviate from the Android Open Source Project. 17 18 * [A-0-1] All Apps exempted from App Standby and Doze power-saving modes 19 MUST be made visible to the end user. 20 * [A-0-2] The triggering, maintenance, wakeup algorithms and the use of 21 global system settings of App Standby and Doze power-saving modes MUST not 22 deviate from the Android Open Source Project. 23 24 * [SR] All Apps exempted from these modes are STRONGLY RECOMMENDED to be made 25 visible to the end user. 26 * [SR] The triggering, maintenance, wakeup algorithms and the use of 27 global system settings of these power-saving modes are STRONGLY RECOMMENDED NOT 28 to deviate from the Android Open Source Project. 29 30 In addition to the power-saving modes, Android device implementations MAY 31 implement any or all of the 4 sleeping power states as defined by the Advanced 32 Configuration and Power Interface (ACPI). 33 34 If device implementations implements S3 and S4 power states as defined by the 35 ACPI, they: 36 37 * [C-1-1] MUST only enter these states when closing a lid that is physically 38 part of the device. 39
