Develop Bugs

Battery percentage dives suddenly

Hello everyone,
Would like to raise a matter about the battery life.
I have updated tostock 4.2.2 recently, I have noticed recently that the battery life is being awkward the least. The device can hold up to 4 days ideal but when I start using it the battery percentage dives rapidely it can go down in 20% if the screen is on for 10 minutes. Did anyone experience this and know how to go around it? Im really troubled as it wasnt like this in 4.1.2 it could hold up to 5 hours of screen now it can barely keep with 2-3 hours!
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modesty1 said:
Hello everyone,
Would like to raise a matter about the battery life.
I have updated tostock 4.2.2 recently, I have noticed recently that the battery life is being awkward the least. The device can hold up to 4 days ideal but when I start using it the battery percentage dives rapidely it can go down in 20% if the screen is on for 10 minutes. Did anyone experience this and know how to go around it? Im really troubled as it wasnt like this in 4.1.2 it could hold up to 5 hours of screen now it can barely keep with 2-3 hours!
Sent from my GT-N5100 using Tapatalk
Click to expand...
Click to collapse
My charge and battery drain thread is here somewhere...
You can look in settings, battery... let us know what is tops on the list.
Also look at settings, data... let us know what is tops as well.
Note: Most of the time the trouble is with google music player, this years update sux with 4.2.2. If you have 4.1.1 it is no problem.
4.2.2 also does not like media files with odd names and characters. I had to rename all my music files to 2 digit numbers, for the media to stop indexing. Folders don't seem to be the issue, just the files. I get 3% per 12 hours discharge with wifi on while sleeping disconnected from charger, and about 10% per hour under a mix use. Thus able to have 8 hours before charging. I can possibly get a week out of the tablet having sync off, power saver enabled, and Wifi off when disconnected from battery in sleep.

modesty1 said:
Hello everyone,
Would like to raise a matter about the battery life.
I have updated tostock 4.2.2 recently, I have noticed recently that the battery life is being awkward the least. The device can hold up to 4 days ideal but when I start using it the battery percentage dives rapidely it can go down in 20% if the screen is on for 10 minutes. Did anyone experience this and know how to go around it? Im really troubled as it wasnt like this in 4.1.2 it could hold up to 5 hours of screen now it can barely keep with 2-3 hours!
Sent from my GT-N5100 using Tapatalk
Click to expand...
Click to collapse
use power saving mode, and download Advanced task killer. Kill all apps running in the background whenever u are done or not using the tablet. and clear your "Recent applications". that should increase the battery life significantly

Same here on videos
gooberdude said:
My charge and battery drain thread is here somewhere...
You can look in settings, battery... let us know what is tops on the list.
Also look at settings, data... let us know what is tops as well.
Note: Most of the time the trouble is with google music player, this years update sux with 4.2.2. If you have 4.1.1 it is no problem.
4.2.2 also does not like media files with odd names and characters. I had to rename all my music files to 2 digit numbers, for the media to stop indexing. Folders don't seem to be the issue, just the files. I get 3% per 12 hours discharge with wifi on while sleeping disconnected from charger, and about 10% per hour under a mix use. Thus able to have 8 hours before charging. I can possibly get a week out of the tablet having sync off, power saver enabled, and Wifi off when disconnected from battery in sleep.
Click to expand...
Click to collapse
Hi guys,
I will search your thread cause I have this huge battery drain problem too.
I'm on 4.2.2 for long now but for 1 or 2 months now, my battery drains very rapidly when I'm watching movies or series ... I can use the samsung player or MX player it's just the same ...
When I'm 100%, i loose more than 10 % in 15 minutes of watching ... in fact my train travel in the morning is 30 minutes, and If i'm watching a movie, during the trip I loose nearly 30 % !!!
The thing is when I'm playing games or do something else, there is no such drain ... and as you I get only approx 3% or 4% per 12 hours discharge with wifi on while sleeping ...
This drives me crazy ...
At 56% at 3:00 pm today (I'm french), since a discharge at 6:00 am, my batteries info from parameters are :
Screen : 39 %
Network / Radio function : 33% (what is this ?)
MX player : 16 %
Sleep mode : 3 %
And the rest is under 2 or 3 % ...
For example, I watch a movie for only 30minutes today and played Zombie Tsunami for approx 20 minutes wich only drains 2% on the battery monitor ...

golgoth57 said:
Hi guys,
I will search your thread cause I have this huge battery drain problem too.
I'm on 4.2.2 for long now but for 1 or 2 months now, my battery drains very rapidly when I'm watching movies or series ... I can use the samsung player or MX player it's just the same ...
When I'm 100%, i loose more than 10 % in 15 minutes of watching ... in fact my train travel in the morning is 30 minutes, and If i'm watching a movie, during the trip I loose nearly 30 % !!!
The thing is when I'm playing games or do something else, there is no such drain ... and as you I get only approx 3% or 4% per 12 hours discharge with wifi on while sleeping ...
This drives me crazy ...
At 56% at 3:00 pm today (I'm french), since a discharge at 6:00 am, my batteries info from parameters are :
Screen : 39 %
Network / Radio function : 33% (what is this ?)
MX player : 16 %
Sleep mode : 3 %
And the rest is under 2 or 3 % ...
For example, I watch a movie for only 30minutes today and played Zombie Tsunami for approx 20 minutes wich only drains 2% on the battery monitor ...
Click to expand...
Click to collapse
I wonder if your using data connection instead of Wifi...Data would draw more power when used, that is probably why you see Network/Radio about as high as screen. I have MX player pro as well so it is not an issue with MX player.
When I watch Netflix I get about 12% an hour drain with Miracast activated. As for playing video files on SD, it can be a lot lower to a lot higher depending on size and bit rate. Remember media playback has a number of things going on, speaker / earphones, video quality, and screen brightness will draw power at higher levels. I suggest doing a test with BBC iplayer for streaming when at home since your in France. Watch about 30 minutes with power saver enabled. You should get about 5% drain at most for the 30 minute test. If you are doing that, I would think the Data connection would be your primary issue with power drain. A way you can boost battery while watching video when traveling, you can purchase an external rechargeable battery. Both Data and GPS will suck the power right out of your device much faster than WIFI and there are a few battery calibration apps that use GPS to quick discharge for faster calibration.
Hope this helps in understanding.

I've got a similar issue.
I've seen a change recently, because the battery lasts much shorter now than only a few weeks ago. I suspect it could have to do with having run the battery too low (below 20%) a couple of times, specially with my kid playing games or watching Youtube on it. 49% of consumption is the screen, 27% is Android OS, Skype 11%. I haven't installed any new apps in that tim, although I updated Skype to a well functioning version (4.6.0.42007), but with it consuming 11% of total energy, I doubt that being the culprit. I haven't change the energy conservation setting (it's turned off), so it's not that either. On the other hand I turned on Playstore apps updating recently, and that might have something to do with it.
Today the Note even went dead, I didn't notice any battery alert. Is there a way to turn a SOUND on for this. Can't seem to find it. However, the Samsung UI keeps making little ringing noises with every received mail, right up to the device shutting off (sound on message alert is turned off). Any way to turn that off?

Gadgety said:
I've got a similar issue.
I've seen a change recently, because the battery lasts much shorter now than only a few weeks ago. I suspect it could have to do with having run the battery too low (below 20%) a couple of times, specially with my kid playing games or watching Youtube on it. 49% of consumption is the screen, 27% is Android OS, Skype 11%. I haven't installed any new apps in that tim, although I updated Skype to a well functioning version (4.6.0.42007), but with it consuming 11% of total energy, I doubt that being the culprit. I haven't change the energy conservation setting (it's turned off), so it's not that either. On the other hand I turned on Playstore apps updating recently, and that might have something to do with it.
Today the Note even went dead, I didn't notice any battery alert. Is there a way to turn a SOUND on for this. Can't seem to find it. However, the Samsung UI keeps making little ringing noises with every received mail, right up to the device shutting off (sound on message alert is turned off). Any way to turn that off?
Click to expand...
Click to collapse
Ah, wow! I always have my screen much higher than any app with battery consumption. I use Dolphin browser for Youtube video while browsing with flash enabled and flash.apk installed as well. I prefer the youtube app for links to youtube from emails.
As for sound, it depends on the app that sends notifications. I just block the device most of the time. Though google has options to use default notifications sometimes it can get confused when you set your devices notifications to silent. Then you must change googles notification to silent as well. I think you do that in language and input in one of the google settings for TTS or Voice. It is really a pain but then again that is why I just block and leave things be. Block is in the Notification panel. you can open the complete switch panel by choosing the squares in the upper right.

When your device hit 100%, unplug your device, turn it off and put it into the power socket. Does it say the charge is 100% or does it take another half an hour before it say 100%?
If that's the case you have a battery calibration problem. The software thinks it's fully charged when the battery is only half charged.
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deviant_cryptic said:
When your device hit 100%, unplug your device, turn it off and put it into the power socket. Does it say the charge is 100% or does it take another half an hour before it say 100%?
If that's the case you have a battery calibration problem. The software thinks it's fully charged when the battery is only half charged.
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Click to expand...
Click to collapse
k
I am sorry to say this... but I have had my own issues with power, and that is why I made a thread about such issues.
What you describe is almost what all OEM Note 8.0 devices do. It will show charging again once you have reconnected power after charging.
It has nothing to do with calibration needed to the battery. I have done this many times with Stock and Civato's ROM. If you do not want the issue with Touchwiz DVFS, download an app to disable it. Then you will not see that sort of issue any more. I do not recommend using tools of any sort to circumvent normal operation, but many have disabled DVFS without ill effects so they have a more accurate view of charge capacity.
Nobody here, including me can tell you what is going on directly with your battery without seeing critical information. If anything post the top battery eaters before you charge. This way we can see what is happening. For the most part media seems to be the issue. As google music player will run in background as Media Server no matter how many times you reboot it will try to re index media files over and over. I froze my Google Music player so the issue is non-existent
Another issue is USB charging cables. Samsung cables are not that good. I moved on to Sony / Nokia cables as they are superior cables and a wee longer to boot.

gooberdude said:
Ah, wow! I always have my screen much higher than any app with battery consumption. I use Dolphin browser for Youtube video while browsing with flash enabled and flash.apk installed as well. I prefer the youtube app for links to youtube from emails.
As for sound, it depends on the app that sends notifications. I just block the device most of the time. Though google has options to use default notifications sometimes it can get confused when you set your devices notifications to silent. Then you must change googles notification to silent as well. I think you do that in language and input in one of the google settings for TTS or Voice. It is really a pain but then again that is why I just block and leave things be. Block is in the Notification panel. you can open the complete switch panel by choosing the squares in the upper right.
Click to expand...
Click to collapse
Thank you for the reply. Regarding sound, I thought it was Samsung's @mail inbox app, but it was Microsoft's Exchange. So that is now on silent. Didn't have any effect (!). Under Settings --> Personal --> Google, sound is also set to silent (!!).
Under Language I found Language, Keyboard, Speech and Mouse pointer, and sound for key press could be disabled (it already was).
The Unit's system sounds for ringing and messages have been on silent the whole time (!!!). Still not getting rid of it.
The low energy alert, I don't know whether that is Google or Samsung's Touchwiz. I have sound (I would like to get an auditory warning)? If so, where would that be? It seems I've been through all the settings, but since I haven't been able to turn off the sound alert for incoming mail, or turn off the auditory alarm for low energy, there probably are other settings I've missed.
Come to think of it, this subject would probably would go better under a different thread.
Thank you for your assistance.

gooberdude said:
k
I am sorry to say this... but I have had my own issues with power, and that is why I made a thread about such issues.
What you describe is almost what all OEM Note 8.0 devices do. It will show charging again once you have reconnected power after charging.
It has nothing to do with calibration needed to the battery. I have done this many times with Stock and Civato's ROM. If you do not want the issue with Touchwiz DVFS, download an app to disable it. Then you will not see that sort of issue any more. I do not recommend using tools of any sort to circumvent normal operation, but many have disabled DVFS without ill effects so they have a more accurate view of charge capacity.
Nobody here, including me can tell you what is going on directly with your battery without seeing critical information. If anything post the top battery eaters before you charge. This way we can see what is happening. For the most part media seems to be the issue. As google music player will run in background as Media Server no matter how many times you reboot it will try to re index media files over and over. I froze my Google Music player so the issue is non-existent
Another issue is USB charging cables. Samsung cables are not that good. I moved on to Sony / Nokia cables as they are superior cables and a wee longer to boot.
Click to expand...
Click to collapse
Which app can disable the Samsung dvfs?
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deviant_cryptic said:
Which app can disable the Samsung dvfs?
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Click to expand...
Click to collapse
Just search on google play for DVFS... you will need to be rooted.... I like saferoot.zip, and to install xposed framework. Most gamers prefer to disable, but it does wonders for true battery reading and charging.

Battery not really improved?

I keep seeing by many that the most recent R update has drastically increased battery life in many cases.. So, whats my problem? I got the update a couple days ago and it doesn't seem to have increased much, if at all. I pull it off the charger at around 6:30am and with light-to-moderate use (text notifications but no replies via voice.) by the time I get off work at 5pm its down to around 45%. By the time I go to bed at 11pm or so its around 15%
yeah, that's a full day but its still about the same as what I was getting before the update. Anyone know of any apps that drain the watch abnormally?
Note: I'm using minimal clock face and ambient off with auto-bright on.

Try a factory reset. I took my watch off the charger this morning at 7 am it is now 10:800 and I have 49%. Lots of phone calls,20 or so texts, 5 Google voicemails, heart rate check and used runtastic for 30min.

Factory reset.
I had horrible battery life after both updates. Each time a factory reset fixed it right up. Factory resets a very simple and don't take very long. Reset, then re sync with the android wear app, then in the android wear app go to settings and resync all apps. Any thing you installed on the watch will be back exactly as it was before the factory reset.

Yup, do a factory reset and you will see the difference for sure... also, it seems there are a few apps that might drain your battery when installed on the watch...
Audio recorder for one gave me bad battery life despite not using it even once

Ok, thanks. I unplugged at 7am, did a restart, but not a full reset, uninstalled mini launcher and a couple watch faces that I'm not using and it seems better. Granted I turned on Ambient Mode for giggles but its at 73% after 4.5hrs. At this rate it should be around 35-40% by the time I get off work which is on par with how it was with Ambient mode off before.
UPDATE: so, got home around 5:50pm and the 20% warning popped up. Thats a bit quicker than when I typically have ambient mode off. But that's 10hrs with ambient on and light/medium usage again. Going to do a full reset before bed and see how it does tomorrow.
Sent from my LG-LS995 using Tapatalk

I uninstalled some apps today and my battery life has been a lot better. Wish I knew which one was causing the problem, I'd report it to the developer.
Anyway, try uninstalling some of your most unused Wear apps. See how that goes

[POSSIBLE FIXES] Battery drain 5.1.1

Ever since updating to new Android 5.1.1 I'm having sudden battery drains while on stand by it will often start to warm up and I'll would see a drop in 20% battery in like 5 - 10 mins. And reboot fixes this. But this has been happening for a few days. Its not the WiFi as I have toggled the WiFi off the watch and locations are also off. I have done am factory reset a few times but no use. Any ideas? Or is it possible to reflash the update similar how you can do on android devices via adb?
POSSIBLE FIXES/ SOLUTIONS
I have summarised possible fixes and solutions to the battery drain
1. Uninstall Battery stats app
2. Re install android wear using Sony PC Companion (this worked for me)
3. Disable Google fit (credit to @maniusng)
4. Install previous version of android wear companion app
5. Fix by @Bender_0
Bender_0 said:
My fix:
I think I stopped battery drains, but not discussed in the XDA option.
Settings> Wi-Fi Settings> Wi-Fi Disable
And then in Wi-Fi settings> Advanced> Energy Saving 15 minutes.
See if you solved this to you.
Click to expand...
Click to collapse
EDIT: POSSIBLE ROOT OF PROBLEM
after doing loads of testing i think i may have found the cause. its the WiFi and its drivers because i have noticed that when my phone gets disconnected and then reconnected later on, during the battery cycle i will have a drain. and if i dont allow my watch to loose connection with my phone and then i would not experience battery drain during that battery cycle.
Click to expand...
Click to collapse

Try turn off Cloud sync on Android wear app on the phone if you didn't do that. Maybe this is the problem.

Mine has been draining too, cloud on or off

I had this too. The last 20% drained very quick during night in a way it never did before

Had similar issues this weekend. Even tried to use it during a half marathon run and the battery died on me during the race. Even the day before the watch just died on me after maybe 4-5 hours.
Haven't tried disabling cloud sync yet, but have turned off Location and Wifi for now. I also uninstalled a few apps I really wasn't using just in case in the background they were draining battery (even if the battery usage monitor wasn't listing specific apps.) The other thing I did was change back to a stock watch face in case the one I was using was draining battery (it was Minimal and Elegant.) Drain has slowed down, so I need to keep playing around with settings.
My guess is it's tied to apps that weren't ready for the 5.1.1 update, so we'll see if I can determine what I was using that started the drain.

supac said:
Mine has been draining too, cloud on or off
Click to expand...
Click to collapse
yes checked its off in my phone as well

there is a similar thread of a user seeing what is causing the battery drain and he found out that it is "wear battery stats" as it kept waking the watch. i have unistalled this app and the watch battery seems to be ok. after another battery cycle ill let you know what happens

After receiving the update and it killing my battery from 100% to dead in 6 hrs I charged the battery over night took it off charge at 11 am yesterday and at 4 today I'm at 3 % which is 29 hrs with sync and wi-fi on and I'm using Wear battery stats.The funny thing is my battery before the update would not last even close to what I just got.

techrider6262 said:
After receiving the update and it killing my battery from 100% to dead in 6 hrs I charged the battery over night took it off charge at 11 am yesterday and at 4 today I'm at 3 % which is 29 hrs with sync and wi-fi on and I'm using Wear battery stats.The funny thing is my battery before the update would not last even close to what I just got.
Click to expand...
Click to collapse
Are you using wake screen by wrist movement? It could be a bug in the accelerometer

Yes I do.My battery died around 6:30 I'm going to charge it and see what happens.

Same problem here...
Wake screen off.

Flav106 said:
Same problem here...
Wake screen off.
Click to expand...
Click to collapse
Have tried the below all while Never having the phone and watch apart more than 2-3 meters:
Wifi off , cloudsync on
Wifi off cloudsync off
wifi off, clousdync off, gestures off
wifi off, clousdync off, gestures off, GPS off
wifi off, clousdync off, gestures off, GPS off + Factory reset (twice)
wifi off, clousdync off, gestures off, GPS off + Factory reset (twice), Cinema Mode
The problem still keeps coming back.
As far as i can tell nothing i do is triggering it.
My next thing to try is to uninstall anything that i can that has a wear app in it, though that's going to be very annoying.

I think most off problems are related to Cloud sync and turning it off will be good for battery. But there is something alse that is draining battery. I had problem with some watchfaces and had to uninstall them day after updating Android wear to 5.1.1. They were killing my watch. Now I am still looking what is draining battery. I'll post my results when I am finished.

Has somebody Google Fit installed and no battery life problems?

I think it could be due to the fact that I have greenifyed the watch faces and watch apps on my phone. I de greenifyed them and I'm gonna check out the battery and keep it updated.

CyberDance said:
Has somebody Google Fit installed and no battery life problems?
Click to expand...
Click to collapse
Ok weird.
Uninstall Google fit, battery life is better but I'm still getting Google fit notifications.
It looks like there is a version that ships with the watch by default.... Maybe that's the issue..?
Sent from my SM-N910G using XDA Free mobile app

I see no difference but use it like I always have no WiFi

Same here.. I have wear battery stats installed on my computer and I've seen sharp spikes with the battery, up to a 20% drain, that's from 2.33% to 3%. I've done the following with the same issue happening:
1. Went into recovery to clear cache
2. Factory Reset from Watch
3. Removed Wear Mini Launcher
4. Removed all additional watch faces
At first it seemed like it was back to normal.. but then I would get another sharp spike... and at times when powered back up from being dead it would act like the cache was cleared and would start the updating applications before the watch would fully start up. So I went ahead (out of anger) and did the following:
1. Removed all unnecessary applications (Stay Lit Wear was one of them.. possible suspect)
2. Reimaged with Sony PC Compainion 2 (Watch was initially upgraded through ADB)
3. Setup the Watch.
4. Uninstalled updates to Google Play Services on my Phone and reinstalled them back on the phone (thus disconnecting the watch... forcing me to.... )
5. Factory Reset the Watch again.
6. Now that I'm back up and running it seems that my battery is lasting a lot longer... at a drain rate of 1.88%.
Crossing my fingers something in there fixed my issue, and possibly helps someone else.

even after uninstalling wear battery stats, still getting sudden battery drains on idle ambient mode in 10 mins there was a drop of over 20% and it still warms up a lot. I am going to reflash using Sony pc companion.

I hope you guy with battery problem figure it out.Mine is the best It's ever been.

[TIP] Factory reset after 5.1 update to fix battery life issues

A lot of us SW3 users are having battery life issues after the Wear 5.1 update. My Smartwatch 3 went from 50% to dead in 90 minutes without using location or Wi-Fi. But after a factory reset (and long resync) my Smartwatch 3 is lasting longer than ever with Ambient Mode still enabled. I recommend factory resetting (the only things that will be lost are preferences and sideloaded apps) and disabling Wi-Fi after setup. If you can tolerate it, disable additional features like tilt wake and GPS (location). See if battery life improves and reenable useful settings after a few days.

Trick didn't help me. After 2 resets battery life is same. Drainig battery is here. Now for 2 days I am looking what is draining battery.

tomo100brt said:
Trick didn't help me. After 2 resets battery life is same. Drainig battery is here. Now for 2 days I am looking what is draining battery.
Click to expand...
Click to collapse
Ive done 2 factory resets since the issue started.
I've also turned off gestures, GPS, wifi and cloudsync.
Nothing seems to make a difference...

I think that some apps are not optimized for newest version of Android Wear, my Smartwatch after update has problem of battery draining, I've done 2 resets but nothing, then i uninstalled all apps and installed 1 app every 4-5 hours to find what causes problems. For now I found WatchMaker Pro that causes battery draining. Now using my watch normally, with wifi on, wrist gestures and some watchfaces installed from yesterday at 6 AM, today at 4:30PM i have 35% of battery, is not so bad!

magicdark said:
I think that some apps are not optimized for newest version of Android Wear, my Smartwatch after update has problem of battery draining, I've done 2 resets but nothing, then i uninstalled all apps and installed 1 app every 4-5 hours to find what causes problems. For now I found WatchMaker Pro that causes battery draining. Now using my watch normally, with wifi on, wrist gestures and some watchfaces installed from yesterday at 6 AM, today at 4:30PM i have 35% of battery, is not so bad!
Click to expand...
Click to collapse
I suspect this might be true. For me, Muzei app and possibly FORM watchface suddenly consumed 400mb of cellular data within minutes and sent my battery diving. Uninstalled both apps and battery life has been back to normal, even within Wi-Fi turned on (albeit rarely utilized since I'm hardly away from my phone).

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.