A7 2017 Oreo Bluetooth battery drain issue - Samsung Galaxy A3, A5, A7 (2017) Questions & Answe

Bluetooth is draining battery even if it is turned off. sometimes it shows as high as 80 percent battery usage. after a factory reset the problem persist. can someone help me to resolve the problem.

I have same problem, except for the leak only occurs when Bluetooth is active but it is not justified

With my Samsung Galaxy A7 2017 A720, the issue started after last update around end of August or start of September.
If bluetooth is on, the battery drains at around 1% per minute. The phone dies within 2-3 hours if I leave bluetooth on.
It seems to be ok when bluetooth is disabled. I have disabled all passive bluetooth features such as location etc.
In addition to the real battery drain, there's also phantom bluetooth battery drain in the battery usage settings. When my bluetooth is on, in ~10 minutes actual battery level goes down from 100% down to 90%, but the battery app shows 24% used by bluetooth and around 1% by screen.

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[Q] Battery suddenly discharging on standby

Hi all
Yeeea I know you may think "WTF! another battery drain thread" But I've search the forum and there is nothing about that strange behaviour of my little big desire.
Usually at night when my phone is in plane mode and on standby, the battery drain is about 2ma (CurrentWidget).
But after a few hours of standby, the drain suddenly rises to 40ma. If i turn the phone on and off immediately, the drain returns to a normal 2ma.
Any Idea?
I'm using SetCPU with a "Screen OFF" profile. Could it be the cause of this?
Attached is a graphic of my battery. You can see that starting a 2 AM the phone starts to drain the battery and stops when I've switch it On and OFF a 8 AM

[Q] Battery drain on stock 4.4.4 / rooted / unlocked / doomkernel

Up to now I'm happy with my Z1C.
But in the last weeks the battery drain went up.
Before that I could get a day and a half to two days of use , I am a moderate user during the day.
Most of the time wifi is off, 4g is off but bluetooth is on, day and night.
Before I had bluetooth turned off when not in the car.
But because I bought a Smartband talk I switched bluetooth to on without turning it off again.
Up to last week the battery was draining faster because of the bluetooth use but it was still good enough for me.
The last weeks / months I downloaded a lot more music on the external card and switched USB use to MSC so I could use it in my car. I listened to music in the car when driving to and from my workplace (1 hour drive single way).
Because it was charging in the morning and in the evening I did not notice any abnormal behavior.
Before I started to use the phone as a mediaplayer in the car I could get 1.5 to 2 days.
When using it as a mediaplayer this did not change, probably because of the charging in the car
Now I switched from workplace and stopped listening to music in the car.
Now my phone lasts for 0.8 up to 1 day max.
When looking at the battery stats it seems to me the mediaserver was eating up a lot.
So I deleted all data from the phone and I did a reset to factory settings. I also removed 80% of the music on the external sd card.
But even then I get a battery drain from 30-35% in about 7 hours time during the night.
I'm running again with only necessary apps installled.
So for the time being no xposed modules, no smartband talk and only switching bluetooth on when using the phone in the car.
But the problem does not seem to be solved.
I have a weak signal at home (1 bar), I had a weak signal at my previous workplace (1 bar) and I have a weak signal at my current workplace (als 1 bar max).
I wonder what is eating the battery so fast?
Is it the weak signal?
Is it because I charged the battery too much (every morning and evening in the car)?
Is my battery dying?
Is it related to an app (multiple apps)?
I have this phone since april 2014.
I am on 14.4.A.0.108 / unlocked / rooted with the doomkernel v22.
So can anybody tell me what monitoring app to use and how to interprete the results from such an app?
I'm in stamina mode.
Estimated lifespan battery is at 2 days when an actual battery percentage of 42%.
I already have betterbatterystats but I do not know if this is the best app for monitoring.
Is there something else I have to look into?
Today I was trying to get my settings in the state I need them to be and when looking at power management / battery usage I can see the screen is the biggest battery user but that seems normal in the current situation.
What about deep sleep, how to monitor this?
How to identify apps being the biggest battery consumers?
What about the apps in manage notifications, there's a lot of them, will it help disabling some / a lot of them?
I really like to get back to charging the phone only once every 2 days.
Any help would really be appreciated.
deboopi2 said:
Any help would really be appreciated.
Click to expand...
Click to collapse
Better Battery Stats is you friend, it will help you locate what it depleting your battery and keeping your phone awake, as well as listing the deepsleep times .
If you have a rooted phone download Disableservice from the playstore. Reading your post you use a fitness tracker so disabling all of these might not work, but it's worth a go.
Once it's installed, open the system tab, open Google Play Services, then untick (disable) the following:
ConfigFetchService
FitnessSyncAdapterService
GoogleLocationManagerService
GoogleLocationService
NetworkLocationService
ProximitySettingInjectorService
UserPresenceService
WearableControlService
WearableService
WearableSyncService
then reboot your phone.
Disabling these from running should have no impact on your phone, it doesn't for me, and will give you 10-15% more battery life.
Turning of sync on your Gmail also saves a lot of battery, especially if you live in a poor reception area, as it polls the Gmail server every few minutes. Likewise sync on your normal emails. It means you have to check yourself to see if you have any mail, but will put a few extra hours on your battery.
The other thing that extended my battery life was deleting the cached data. Settings\Storage and hold down on Cached data until you get a popup asking you to delete it. I know it sounds bizarre, but it really worked.
Try putting a stock kernel back in for a few days and see if that makes a difference.

Battery life issues after 5.1.1 update

I had good battery life before 5.1.1 despite many apps loaded including WatchMaker Pro. Was able to get through end of day and then some.
After 5.1.1 update can't get more than 7 hours. I tried completely resetting watch, removing/reinstalling Android Wear/Moto apps from phone and clearing BT. Tried removing many apps, turned off WiFi, turned off card flip, ambient off, even turned off flip to wake which I had on before. There are less battery munching things installed and more functions turned off yet much lower battery life.
Battery Level indicator shows...
- Android Wear 8%
- Bluetooth 6%
- Android System 4%
- Screen 3%
I saw post about clearing everything off phone and starting over, which I've done.
Any suggestions?
_______________________________________________________________
Edit: Based on responses below, it has been fixed.
Here is exactly what I did that solved my battery life issues after 5.1.1 update. I don't know if all steps necessary but is what worked for me...
- Go to Android Wear app on phone, Settings>Moto360 Connected>Forget Watch at bottom of screen
- Phone App Manager in Settings, Select Android Wear - Clear Data, Clear Cache, Uninstall App. Also uninstall Moto Connect app.
- Check Bluetooth, unpair watch if still there. Turn off Bluetooth.
- Reboot Phone (Do this, I missed this step and had issues)
- Do a factory/hard reset on Watch from Watch Settings
- On phone, turn on Bluetooth after rebooted.
- Install this version of Android Wear (this may not be required but is what I did)...
http://www.apkmirror.com/apk/google...roid-wear-1-1-1-1956917-android-apk-download/
- Setup as if new watch
- Check battery level over time and hopefully 'Watch Idle' is on top of list
- After confirming battery drain resolved....
- Goto Android Wear, Settings>Moto360 Connected>Resync apps
I now get well over a 24 hours battery life with many apps installed and complex Watchmaker Pro face - everything turned on except WiFi, ambient screen. Watch Idle shows as top item in Battery level screen.
I eventually let Android Wear app update under Google Play and all was fine. It may not be necessary to install older version first but is what I did.
I have had the same results. I used to sleep with my watch on and the battery would drain about 18% in 7 hours. Since installing 5.1.1, my battery life is much worse. This morning i woke and only had 2% charge left. Today I went from 8:30am to 2:30pm and had 39% charge left with minimal use, so it burns around 10% an hour.
xenokc said:
I had good battery life before 5.1.1 despite many apps loaded including WatchMaker Pro. Was able to get through end of day and then some.
After 5.1.1 update can't get more than 7 hours. I tried completely resetting watch, removing/reinstalling Android Wear/Moto apps from phone and clearing BT. Tried removing many apps, turned off WiFi, turned off card flip, ambient off, even turned off flip to wake which I had on before. There are less battery munching things installed and more functions turned off yet much lower battery life.
Battery Level indicator shows...
- Android Wear 8%
- Bluetooth 6%
- Android System 4%
- Screen 3%
I saw post about clearing everything off phone and starting over, which I've done.
Any suggestions?
Click to expand...
Click to collapse
Is there an app syncing data to your watch (Play Music) or anything? Here are my stats so far today:
- Idel 8%
- Android Wear 4%
- Android System 3%
- Screen 3%
- Bluetooth 2%
- Wifi 1%
(I had 4 other apps at 1% each that I did not list)
I have had my watch off the charger for 9 hours and lost 37% battery (4.1% and hour). The only thing I see is that your Bluetooth and Android Wear seem high, which would make me think there is some app syncing data to the watch.
Unninstall the Android wear APK that updated on June 18 on your phone, install the May 26 APK and deny the auto update feature, this worked for me.
With the update the watch lost 10% in 1 hour now it loses 10% in 7 hours
the link for the android wear apk is:
http://www.apkmirror.com/apk/google-inc/android-wear/
Thanks all. I reset watch again, installed older version of Wear above and rebooted phone (important step I didn't do before). Am now getting 24+ hours even with a complex Wacthmaker Pro face I created that shows heartrate/steps/weather and 10 other stats. Am happy camper again. Watch Idle is now highest on battery activity.
BTW, Android Wear updated in Google Play to latest version and still great battery life.
7 hours is great. Mine died in 45 minutes. I got up - took it off the charger - it was at 100% - 45 mins later it had 12% left and a minute later died. I'll see how it goes tomorrow but 45 mins of battery time for a relatively new device is insane. It says that 98% of the battery is used by Android Wear.
The battery drained in 3 hours of no use, wtf happened? any idea?
I posted exactly what I did to solve my problem in the second half of the first post.
how can i see the battery level ??/ Just bought a new one
hoangtu2410 said:
how can i see the battery level ??/ Just bought a new one
Click to expand...
Click to collapse
Go to Android Wear app on phone, Settings gear icon>Moto360 Connected>watch battery
edit: Seems odd it's so deeply hidden but the reason is because they now support multiple Wear devices so you have to select which device you want to see stats on even though most only have one.
I just bought it today but my batery life is just horrible. I updated to 5.0.2 and I don't think I should install 5.1.1.
This is what happends:
- I charge to 100%
- after 1 hour its dead.
hoangtu2410 said:
how can i see the battery level ??/ Just bought a new one
Click to expand...
Click to collapse
drop down on the watch or open the android wear app tap the gear at the top right then select moto 360 and there is an option that reads watch battery.
Since the update I can't seem to get to bed with the 20 per cent of battery I used to. I have tilt, ambient, gestures, wifi and auto brightness on. Should I turn off wifi or something?
Badelhas said:
Since the update I can't seem to get to bed with the 20 per cent of battery I used to. I have tilt, ambient, gestures, wifi and auto brightness on. Should I turn off wifi or something?
Click to expand...
Click to collapse
Check battery level in Wear app and if Screen is high, it might be tilt, ambient, auto brightness. I'm not sure where WiFi shows up, maybe as Android System. I have WiFi turned off, would think it would be biggest battery muncher. Ambient also known to munch.
do you know how to remove moto heart rate software without root ?
I've been having really good luck with battery life considering. I lose about 3% an hour on Bluetooth and about 4% an hour on WiFi. I can't take my connected phone to work so I use another phone to create a hotspot. My watch spends about 9 hours straight on WiFi and I am having better than expected results. Tilt on. Ambient off. 180 min WiFi timeout. Stock rotate watch face. Auto brightness.
Sent from my LG-VS985 using Tapatalk
I've got no issues with the watch on 5.1.1, but my Samsung S6 has been hit hard with the latest Android Wear app... fk me.. I used to get almost 5 hrs SOT, but now its just on 3.5hrs..
I think the watch/software is just buggy. Like today I got out at 10AM and it's now 11PM and it still has 58% battery. The other day it died in less than an hour.
PS: Perhaps it should be restarted every now and then. Reminds me of old times with Windows 98. Restart usually fixed lots of problems.
After doing the whole process of deleting apps, resetting the watch and pair the watch to the handset the battery lasted 2 and a half days

IMS wake lock drain

Hi, I recently got my S9 but however lately I've been getting idle drain. With mobile data off, I lose about 2% every 2 hours and with mobile data on, I lose 4% every 2 hours. I have GSam installed and used ADB to give it permission for battery stats. Below are screenshots
http://imgur.com/gallery/5c4Q4j4
It seems to be from IMS service. I read that it can be from either WiFi calling or volte. I do not want to turn off either. Had anyone else experienced this? I still have good battery but this idle drain isn't normal. I haven't left my phone overnight so I guess I might try that tonight and see how much it drains
Hi there,
I am re-opening this old thread since I am facing the exact same behaviour with my new S10+. Due to IMS wakelocks, my battery drains 30-40% overnight (while I'm sleeping for 7 hours). If I put my phone in flight mode, it loses 1% overnight. Did you manage to find a solution afterall? I really hate having to put my phone in flight mode every night. Thanks in advance :highfive:
panmitz said:
Hi there,
I am re-opening this old thread since I am facing the exact same behaviour with my new S10+. Due to IMS wakelocks, my battery drains 30-40% overnight (while I'm sleeping for 7 hours). If I put my phone in flight mode, it loses 1% overnight. Did you manage to find a solution afterall? I really hate having to put my phone in flight mode every night. Thanks in advance :highfive:
Click to expand...
Click to collapse
Did you ever find a solution to this? Experiencing same problem now ...
Hi ... did any of the posters above find a solution to this issue ?
I am stuck at exactly the same problem: The phone (S9, stock-rom) drains approx 20% over night, doing nothing. Reason (according to GSam Battery Monitor) is the high power consumption of Apps > Android-System > 48 mins (264 count) wakelocks caused by ImsService.
If you look at the picture of batter usage in Gsam you clearly see, the phone stays active all night and barely sleeps/dozes :-(
What I already tried, without any effects:
- clearing cache of all "IMS*" Services in App Manager
- wiping cache partition
- disabling AOD (Always On Display) and VoLTE Telephony
- removing and re-adding google account
I am a little clueless and would like to avoid a factory reset as especially all those nasty "push-tan applications" will most likely need a re-authorization :-(
I'd heavily appreciate any hint.
After a long journey it seems that I found a solution: At least on Android 10 there seems to be a bug in google location services. If you disabled location history, the API requests are still made but get stuck each time (every 60 sec.) and keep the phone awake instead of returning to sleep.
The "bitter" solution was to turn on Google Location history again ... and suddenly the drain ends, as the detection and transmission of the location is ways faster, than letting the die in a timeout ...

Horrible Battery life on Pixel 2 XL (Pie) (6%/H Drain)

I'm a really light user. I lost a little less than 2% every hour. Basically I use it as a purely communication device. Mostly check facebook messenger, my emails, and occasionally, browse facebook, reddit, 9gag or watch a short youtube video. I stay up about 16 hours on average and at the end of the day, I was regularly around 80%. If I left the phone unplugged overnight while I slept, I only lose about 6% over 8 hours. I was really happy with the battery life. I could very easily see 3 full days out of my phone off a single charge. This was before the Pie update. I tried both the Beta and the Stable once it released, and my battery life has suffered severely. I'm losing 6% every hour, even with the screen off the entire time. At the end of the day, my phone is in the red and has already turned on power saving mode. Android Pie has killed my Pixel 2 XL's battery. I gave it 2 weeks to "learn" my usage habits, but ultimately, I factory reset and even went back to 8.1, but I still suffer from battery issues. Battery usage gives no hint to the culprit. My phone has been unplugged for 7 hours, with 45 minutes of screen on time, and at 54% remaining battery life. Screen On time is the highest battery drain according to the system battery stats. I didn't have this issue until I installed Android Pie Stable.
I have no idea what could be going on, but could really use some help with this.
TL;DR: From 2% to 6% per hour battery drain on Pie. Reverted to Oreo and FR but still an issue. Advice?
Did you check if the WiFi scanning is turned ON? Settings --> Location --> Scanning
I feel its the only issue, nothing should drain your P2XL crazy if apps remaining constant factory reset.
-- personal experience.
I also use it very similarly to you and easily get 2 days with a single charge on Pie. During night my device drains 1 or 2 % only (wi-fi, bluetooth and 4g on), but I have wi-fi scanning off. Google location services are on (including Location Accuracy on). "At a Glance" is turned off but still using stock Pixel Launcher. No hacks/mods installed.
Same except I have at a glance enabled. I disable it 6 hours ago to test and didn't affect battery drain at all. Still losing 6% every hour. Location and scanning settings default except connect to open WiFi is enabled. Right now testing if connect to open WiFi and Bluetooth WiFi location improvement affecting battery drain.
Testing that now. Will report in a day. Heading to bed now. Gn
Does the phone charge all the way to 100%? Does the phone ever turn off by itself when low on battery ~10%? Install and run Accubattery. After a few charging cycles you will get a very close approximation of your battery's remaining capacity as compared with new in mAh. Battery capacity will be located under the health tab. The more charge cycles you monitor, the more accurate it gets, but it will zero in on a number pretty quickly after the first 2-3 charges. Could be the battery... stranger things have happened. This also assumes the user has fully wiped the phone several times going between DP's, Pie and reverting to Oreo.
Does the phone charge all the way to 100%?
- Yes
Does the phone ever turn off by itself when low on battery ~10%?
- Honestly, I don't know. I never let my battery get that low.
Install and run Accubattery. After a few charging cycles you will get a very close approximation of your battery's remaining capacity as compared with new in mAh. Battery capacity will be located under the health tab. The more charge cycles you monitor, the more accurate it gets, but it will zero in on a number pretty quickly after the first 2-3 charges. Could be the battery... stranger things have happened.
- Will do
This also assumes the user has fully wiped the phone several times going between DP's, Pie and reverting to Oreo.
- You assume correctly.
Didn't seem to help.
Didn't seem to help at all.
Video of battery stats and settings.
https://drive.google.com/open?id=164lujTgzt6hihESdFlkb0AdQdOFGiYtX
I changed some settings and now I'm getting 17mAh drain. Fixed.
The biggest battery sucker for me was having Auto-connect to open wifi enabled and fixing stuck sync tasks. It was preventing my phone from sleeping.
Great to know you were able to stop the draining, I think it might be of great help to other P2XL owners to know what were the settings you changed that fixed the issue.
What settings did you change?
I am having the same issue. I would be interested in hearing your changes as well. Thank you
Download and install Accubattery to monitor your mAh usage. Make sure you check your deep sleep percentage. By the sound of things, your phone is running hot when idle, so it's not sleeping like it should be. You can install Wakelock Detector Lite to see which apps are keeping your phone awake. Once you find out what apps are draining your battery, use the System battery manager in Settings to restrict battery usage for those apps. If that doesn't help, then uninstall the app (unless it is necessary to you). If an app isn't keeping your phone awake, then it may be your system settings. Turn off location scanning for wifi and bluetooth (in the GPS section). Turn off Wifi auto-connect to open wifi. Where I live I have pretty weak cellular connection. I opted to disable Mobile data always active in developer options (Go to about phone, and tap the build number 7 times, then enter your device password). While you are here, you can check Running services in developer options and see what you have running. Also, make sure your accounts aren't stuck trying to sync. If they are, cancel the sync and restart it. Depending on how far you are backlogged, this can take a while. If the sync still gets stuck, try removing and re-adding the account that is getting stuck.
After I restricted/uninstalled the misbehaving applications and tuned the device settings, I'm getting great standby time on my Pixel 2 XL. If I close all my apps before putting the phone back in my pocket, according to accubattery, I'm losing 15mA/h or about 0.4%/h. If I charged my phone to 100%, then unplugged it without using it at all, it would take 10 days for the battery to run out. It's pretty good. As someone who primarily uses their phone as a communication device and research tool, I'm a pretty lightweight user.
+1 What settings did you change?
Yes, please, don't keep us in suspense!
Just got a used one so trying to learn all about getting optimum performance.

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