S22 Exynos 40% Battery drain OVERNIGHT - Possible culprit found

[BatteryVamp]

Last night I took my S22 Exynos out of charging before I went to sleep. I woke up in the morning to find 40% of my battery DRAINED.

I'm really frustrated with this S22 as idle battery drain in general with screen off according to Accubattery is 5% PER HOUR. My S22 does not enter deep sleep overnight or during the day.

I opened ADB and looked and noticed a LOT of screen wakeups when I was sleeping and the phone was not charging.

WakeUp History size: 100​

[66] 10-01 00:39:53.104 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher

[67] 10-01 00:39:58.396 1000 OFF timeout com.sec.android.app.launcher

[68] 10-01 01:35:49.267 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[69] 10-01 01:35:54.511 1000 OFF timeout com.sec.android.app.launcher

[70] 10-01 02:30:22.641 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[71] 10-01 02:30:27.906 1000 OFF timeout com.sec.android.app.launcher

[72] 10-01 03:26:12.390 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[73] 10-01 03:26:17.682 1000 OFF timeout com.sec.android.app.launcher

[74] 10-01 04:22:27.257 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[75] 10-01 04:22:32.541 1000 OFF timeout com.sec.android.app.launcher

[76] 10-01 05:14:56.599 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[77] 10-01 05:15:01.874 1000 OFF timeout com.sec.android.app.launcher

[78] 10-01 06:08:14.875 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[79] 10-01 06:08:20.123 1000 OFF timeout com.sec.android.app.launcher

[80] 10-01 07:01:28.993 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[81] 10-01 07:01:34.263 1000 OFF timeout com.sec.android.app.launcher

[82] 10-01 07:55:50.326 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[83] 10-01 07:55:55.596 1000 OFF timeout com.sec.android.app.launcher

[84] 10-01 08:46:50.835 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[85] 10-01 08:46:56.102 1000 OFF timeout com.sec.android.app.launcher

[86] 10-01 09:39:54.246 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[87] 10-01 09:39:59.484 1000 OFF timeout com.sec.android.app.launcher

[88] 10-01 10:38:42.216 1000 ON WAKE_REASON_PLUGGED_IN com.sec.android.app.launcher
[89] 10-01 10:38:47.477 1000 OFF timeout com.sec.android.app.launcher​

It appears the phone keeps thinking it is plugged in when it is clearly not. I wonder if this stops the phone from going into deepsleep?

I have my brightness set manually (20%) and noticed that the wakelock for screen_brightness is running.

Wake Locks History: size=4
09-30 16:31:47.037 (ElapsedTime: 143537ms) SCREEN_BRIGHT_WAKE_LOCK 'WindowManager' ON_AFTER_RELEASE (uid=1000 pid=1264 ws=WorkSource{10315} displayId=-1) android.os.Binder@997eff9
09-30 21:04:53.343 (ElapsedTime: 84887ms) SCREEN_BRIGHT_WAKE_LOCK 'WindowManager' ON_AFTER_RELEASE (uid=1000 pid=1264 ws=WorkSource{10364} displayId=-1) android.os.Binder@997eff9
09-30 21:12:34.099 (ElapsedTime: 352604ms) SCREEN_BRIGHT_WAKE_LOCK 'WindowManager' ON_AFTER_RELEASE (uid=1000 pid=1264 ws=WorkSource{10364} displayId=-1) android.os.Binder@997eff9
10-01 10:53:41.126 (ElapsedTime: 162304ms) SCREEN_BRIGHT_WAKE_LOCK 'WindowManager' ON_AFTER_RELEASE (uid=1000 pid=1264 ws=WorkSource{10364} displayId=-1) android.os.Binder@997eff9

ADB command: .\adb.exe shell dumpsys power


Galaxy S22 
Please help. I am truly at my wits end with this phone. Battery drain is insane.

[Neo001]

Hi, Have you tried enabling the bedtime mode?

[Doodle1]

Uninstall Accubattery and perform the same test and use device care to monitor the battery usage...

[keith30]

Don't leave on when asleep if your worried about having battery drain. Most apps run in the back ground when still idel.

[BatteryVamp]

Doesn't that just mute notifications and calls?

[BatteryVamp]

If I turn off the phone, my alarm would not work 😐

[Neo001]

Indeed, but besides that, it turn the display to black and white and may be then the phone knows that it needs to sleep

[PaulM1]

Hi, @BatteryVamp. That's not what we'd expect to see, so there are a variety of things you can try. Clearly, some app (or collection of apps) or process is causing your S22 to wake up excessively (even when it's not in use).

The first step would be to pop your S22 in to Safe Mode. This will disable any third-party applications, so that you can determine whether these are causing the issue.

To do this, press and hold the Power button until you see Power off, Restart and Emergency > Press and Hold the Power Off icon until it shows a Shield > Tap the Shield. After this, the S22 will start in Safe Mode.  

If the trouble is fixed whilst in Safe Mode, then it suggests that this is being caused by a third-party app. To resolve this, please exit Safe Mode, then begin uninstalling apps you've downloaded one by one (restarting the phone between each app uninstallation) until the issue fixes itself. Once you've identified the troublesome app (or apps), you can reinstall the other apps via the Galaxy/Google Play Store.

Additionally, you can also set up a Bixby Routine whereby your S22 can go into Airplane/Flight Mode each night for a designated period of time. You can find out more about setting up these routines via the link below:

https://www.samsung.com/uk/support/mobile-devices/how-to-use-bixby-routines/

Please let us know when you eliminate the cause of the battery drain.