This is called a wakelock, and it’s the number one enemy of your battery life. When an app or service needs to run a process, it can wake the device with an alarm. The wakelock mode keeps the CPU awake so the app can do its business.
What does awake mean on Android battery?
I.e, as many as possible components are off and don’t consume power. Awake means the CPU is in the running state. This usually means you’re using it and the screen is also on. Android devices also regularly wake up to check email, push notifications and so on even when thescreen is off.
What does wake lock app do?
Wake Lock gives you control over the Android Power- and WifiManager. For example, you can force the PowerManager to keep the screen on or have the CPU still running in standby mode or make sure the Wifi connection keeps running at full performance. You can use it on any android phone or tablet.