Database Info

Battery dropped 40% in Nougat for Honor 8

Upgraded from EMUI 4 (MM) to EMUI 5 (Nougat) a few days ago.
My SoT has dropped from about 6.5 hours to 4 hours, but mostly because the phone seems to never go into deep sleep.
I used to have a standby drain of maybe 1% per hour. Now it's around 4-5%!
I have the same apps exempt from screen-off-close: Slack, Google Voice, Nine (for work email), Netguard (for ad blocking). Android OS and Android System are by far and away the highest battery users regardless of whether I've been browsing or if it's on standby.
Any ideas?

yeah ,me too i got better battery life when i was in mm. nougat sucks the battery...they need fix it .. via next small update

try greenify to make some app sleep

Its recommended after huge updates to do backup the files and hard reset the phone

sTefIx420 said:
Its recommended after huge updates to do backup the files and hard reset the phone
Click to expand...
Click to collapse
Yup, did that. Did a full factory reset and installed from scratch. The only thing I restored via HiSuite were my texts.

biogon said:
Upgraded from EMUI 4 (MM) to EMUI 5 (Nougat) a few days ago.
My SoT has dropped from about 6.5 hours to 4 hours, but mostly because the phone seems to never go into deep sleep.
I used to have a standby drain of maybe 1% per hour. Now it's around 4-5%!
I have the same apps exempt from screen-off-close: Slack, Google Voice, Nine (for work email), Netguard (for ad blocking). Android OS and Android System are by far and away the highest battery users regardless of whether I've been browsing or if it's on standby.
Any ideas?
Click to expand...
Click to collapse
Having the same issue here.. Android System seems to suck a lot of juice.
Sent from my FRD-L04 using XDA Labs

biogon said:
Upgraded from EMUI 4 (MM) to EMUI 5 (Nougat) a few days ago.
My SoT has dropped from about 6.5 hours to 4 hours, but mostly because the phone seems to never go into deep sleep.
I used to have a standby drain of maybe 1% per hour. Now it's around 4-5%!
I have the same apps exempt from screen-off-close: Slack, Google Voice, Nine (for work email), Netguard (for ad blocking). Android OS and Android System are by far and away the highest battery users regardless of whether I've been browsing or if it's on standby.
Any ideas?[/QUOTE
same problem here while everything done for better battery optimize nothing went well, B360
Click to expand...
Click to collapse

Same here. On L04 B360 Nougat update, and Android OS and Android System are pretty much always the top 2 battery consumers....

Same here. Down from 25 hours to 16 hours. Same apps.

I am pretty sure that so called Nougat b360 update, pushed from Huawei to our devices is some kind Beta. I have notification bar flickering when unlock the phone, when uninstall an app through Settings- Apps the app icon still persist in home screen, after restart of the phone if i push Settings menu i have black screen for couple of seconds and the device is freezing, the apps continue to work after screen lock, although i forbid them to work, battery life was impressive for the first two days but then bang... No more than 4- 4.5h SOT from 100% to 5% of battery with same usage of the phone... Factory reset couple of times, same story.
The most strange thing is that i had the same problems with my ex Huawei P9 running on so called official Nougat.

The upgrade to EMUI5 is a mess. The battery was completely drained overnight although the phone was turned off (powered down). It was at 90% when I turned it off at midnight, and totally dead at 8:00 AM.
There are numerous other problems with the upgrade.
I chatted with Huawie live support, and they claim that Huawie does not push upgrades, and that the upgrade came from Android not from them.
I am not convinced. The upgrade had Huawie written all over it.
You can roll back to Android 6. The Huawie folks have a file on their official support site to download and roll back.

One thing I forgot to mention.
Nougat on Honor 8's battery drain rate matches Nougat's battery drain rate on my old Nexus 6p... the reason I sold it for the Honor 8.
Sigh. Maybe it's something in 7.0's Doze.

I think the best option here is to peroform a factory reset. This will probably help.

Since I turned on "battery save" mode in battery settings two days ago, 6h sot is come back.
Like I read in another thread, seems to be the old "intelligent profile" in MM. Deactivated it's like be always in "performance profile". This and save data profile in background are working well in my device.
Try guys and tell us.
Enviado desde mi FRD-L09 mediante Tapatalk

Thom Knepper said:
I think the best option here is to peroform a factory reset. This will probably help.
Click to expand...
Click to collapse
Already tried that twice, unfortunately. No improvement.

biogon said:
Already tried that twice, unfortunately. No improvement.
Click to expand...
Click to collapse
Mabey you can do a rollback. After that a factory reset and after that update again.

You can roll back to Huawie Android 6.
Huawie has a file to download (with instructions) on where to place the file on your phone's internal storage (not on the SD card), and what buttons to press to initiate the roll back.
You can download it from Huawie's official site, here:
http://www.hihonor.com/us/support/details/index.html?DOC_ID=92098
Please report back so others can benefit from your success.

Today is even worse than before.
32 minutes SOT so far. Battery at 81%.
Phone Idle at 12%, Cell Standby at 5%, Chrome at 19%, Android System at 19%, Android OS at 16%.
Going to roll back to MM. This is even worse than my old 6P.

Cool_Man99 said:
You can roll back to Huawie Android 6.
Huawie has a file to download (with instructions) on where to place the file on your phone's internal storage (not on the SD card), and what buttons to press to initiate the roll back.
You can download it from Huawie's official site, here:
http://www.hihonor.com/us/support/details/index.html?DOC_ID=92098
Please report back so others can benefit from your success.
Click to expand...
Click to collapse
Hi, there is only one update.app file in the downloaded rar file. Should I have to use the same update file for both stages -- intermediate and 6.0 -- described in the instruction file?

Well... I ended the day with 3h 17m SoT doing just browsing and texting, with 2% battery left.
Downloading rollback now...

Has there been any fixes to the battery drain issues with 7.0 update on Honor 8 (US)?

Hi, I have upgraded to Android 7.0 on my Honor 8 yesterday and since then the battery is draining at an insane pace.
I used to get an overnight standby drain of 3-5% on average with 6.0 and it is well over 25% with 7.0. Something called "Android System" has consumed a disproportionate majority of the battery. A similar problem is reported here: https://forum.xda-developers.com/honor-8/help/battery-dropped-40-nougat-honor-8-t3558197
The background app settings haven't been changed -- have about same 6-7 apps like Whatsapp, Outlook, etc. However, when I open the current background apps, I see a few unprotected apps (like Maps) also running in the background. Is this a bug?
Please help out, if there are any fixes.
Thanks.

try apps like greenify to fix wakelocks

adisarun said:
Hi, I have upgraded to Android 7.0 on my Honor 8 yesterday and since then the battery is draining at an insane pace.
I used to get an overnight standby drain of 3-5% on average with 6.0 and it is well over 25% with 7.0. Something called "Android System" has consumed a disproportionate majority of the battery. A similar problem is reported here: https://forum.xda-developers.com/honor-8/help/battery-dropped-40-nougat-honor-8-t3558197
The background app settings haven't been changed -- have about same 6-7 apps like Whatsapp, Outlook, etc. However, when I open the current background apps, I see a few unprotected apps (like Maps) also running in the background. Is this a bug?
Please help out, if there are any fixes.
Thanks.
Click to expand...
Click to collapse
Many users are dealing with this problem and I've reported before.. This update is broke, and shouldn't have been pushed officially. There are a lot of bugs, and the most irritating one is the battery consumption.
And I don't think Honor is going to fix any of it since we're used to them not caring about what we deal with.

My personal experience with the Nougat update was that battery drained quicker than usual for the first few days, then it stabilized to normal levels (i.e. more or less what it had been in Marshmallow). I was expecting this behaviour, since system upgrade clears out battery optimization data, and it takes a couple of days for the OS to learn what to optimize. Also I suggest you recheck your battery saving settings (Both the Huawei version under Battery settings and the Google version under Applications).
And since someone is going to ask anyway: no, I haven't done factory reset. There was no need.
But this was just my personal experience with nougat. It's of course quite possible that for some people there is a real constant battery drain (wouldn't be the first time, I had a similar experience with my old Motorola when I upgraded to Lollipop a couple of years ago).

It's not the update. From my experience, I had this issue since I bought the phone. I would factory reset it all the time and this issue would persist.
It turns out that in my case, I would always turn off LTE and use WCDMA instead. My logic being that WCDMA uses less power, so therefore I would get better battery life. Nope. There's a glitch that happens if you do this and have wifi on, It doesn't let the phone go into deep sleep. Ever. So your battery drains about 20℅ overnight.
The solution for me was to simply leave LTE on, and now my battery consumes like 1℅ overnight.

For those suffering from battery drain, check your consumption and see if Google calendar sync is taking up a lot of it.
I had that issue, and had to manually kill the sync (from the accounts screen).
It seems to be an issue on all Huawei devices on 7.0, the native calendar isn't playing well with sync, and unless you're rooted and can uninstall it, you're stuck. (I'm waiting to root until a patch comes out for all these issues first)
All in all, if this is how Huawei treats their devices, and their customers, I won't buy another one of their devices.
I updated via Charles method, but my mother's L04 still hasn't gotten the update. And probably never will unless I do it manually.
Very disappointing.

b1tt1 said:
My personal experience with the Nougat update was that battery drained quicker than usual for the first few days, then it stabilized to normal levels (i.e. more or less what it had been in Marshmallow). I was expecting this behaviour, since system upgrade clears out battery optimization data, and it takes a couple of days for the OS to learn what to optimize. Also I suggest you recheck your battery saving settings (Both the Huawei version under Battery settings and the Google version under Applications).
And since someone is going to ask anyway: no, I haven't done factory reset. There was no need.
But this was just my personal experience with nougat. It's of course quite possible that for some people there is a real constant battery drain (wouldn't be the first time, I had a similar experience with my old Motorola when I upgraded to Lollipop a couple of years ago).
Click to expand...
Click to collapse
Thanks. I was thinking of waiting for a couple of days too. Its just been 12 hours and the battery is almost down to 25% from 100%. If it doesn't improve in the next few days, I'll revert to 6.0 with which I had solid 1.5 days battery life for my usage level.

On my frd 09 i got a update after the nougat update which fixed my battery drain it was around 356 mb big. But since maybe 1-2 weeks already. And my battery drain is lower as on MM

I do feel Nougat on my L14 is draining faster than MM. It's mostly Android System or Android OS so I have no idea what is within that taking the power. There is also a weird bug with LTE enabled when I make a call to another cell phone. Most of the time, my phone says it's ringing on the other side but there's no "ringing" sound on my side. Weird. Turn off LTE and you can hear the ringing.

It is always hard to determine what is going on in these sort of circumstances. For me, EMUI 5 doesn't seem to have badly affected my battery life. I just got almost 3.75 hours SOT using Waze for navigation, and still have about 30% battery. According to the detailed power info, Waze was using 1340.27 mAh.

b1tt1 said:
My personal experience with the Nougat update was that battery drained quicker than usual for the first few days, then it stabilized to normal levels (i.e. more or less what it had been in Marshmallow). I was expecting this behaviour, since system upgrade clears out battery optimization data, and it takes a couple of days for the OS to learn what to optimize. Also I suggest you recheck your battery saving settings (Both the Huawei version under Battery settings and the Google version under Applications).
And since someone is going to ask anyway: no, I haven't done factory reset. There was no need.
But this was just my personal experience with nougat. It's of course quite possible that for some people there is a real constant battery drain (wouldn't be the first time, I had a similar experience with my old Motorola when I upgraded to Lollipop a couple of years ago).
Click to expand...
Click to collapse
Just for balance, my experience is more like this one, although I don't think I had to wait days for it to not be a battery drainer. Is everyone in this thread talking about b360? (for whatever variant you have)? I did see this on b320, but have used b360 for about 1-2 months now (Charles) and haven't had any noticeable difference in battery life from Marshmallow. It drains 1-3% / night. Screen on time , say browsing is pretty regularly 5.x hours, and typically I get 2-3 days out of a charge.
I believe everyone that says they've got a problem, but I guess some of us got lucky. Just so it's known: Mine is a US L04*b360 variant.
Note: Just as a possible point of difference. Before I was on b360, I had the phone rooted, with TWRP, and had to wipe the entire thing , rollback to b160 and use Charles to get b360. I never did a reset and I don't turn off functionality. Also, maybe most important. I don't use social media hardly at all. I haven't got Facebook or Twitter installed because I don't like either.

i would suggest a factory reset, then install only essential apps and test it for a couple of days.
L04 here, OTA updated and I'm seeing better battery performance than MM.

adisarun said:
Hi, I have upgraded to Android 7.0 on my Honor 8 yesterday and since then the battery is draining at an insane pace.
I used to get an overnight standby drain of 3-5% on average with 6.0 and it is well over 25% with 7.0. Something called "Android System" has consumed a disproportionate majority of the battery. A similar problem is reported here: https://forum.xda-developers.com/honor-8/help/battery-dropped-40-nougat-honor-8-t3558197
The background app settings haven't been changed -- have about same 6-7 apps like Whatsapp, Outlook, etc. However, when I open the current background apps, I see a few unprotected apps (like Maps) also running in the background. Is this a bug?
Please help out, if there are any fixes.
Thanks.
Click to expand...
Click to collapse
Try going into settings, accounts, google.
Look to see if anything looks like its stuck syncing. If there is, turn that off. Go into the app that was stuck, and swype down to cause it to refresh, then go back into the setting and turn that syncing back on (if you want it to sync).

Does root and Greenify help?

I contacted Honor Support and reported the problem.
I was suggested to "Wipe Cache Partition". It helped a bit but the battery was still draining at a faster rate than 6.0. So I have now been wiping cache partition on a daily basis after a full charge.
I know it doesn't make much sense but it helps contain the drain a bit, at least when connected to the Internet via WiFi. The drain rate remains the same as soon as I switch to LTE (about 2-3% drain per hour with roughly 5-10 minutes SoT).

brownd7380 said:
Does root and Greenify help?
Click to expand...
Click to collapse
My phone wasn't rooted. I'd have tried Greenify but it wasn't any app causing the drain; "Android System" is the culprit. I don't know if Greenify could help with that.

amarryat said:
Try going into settings, accounts, google.
Look to see if anything looks like its stuck syncing. If there is, turn that off. Go into the app that was stuck, and swype down to cause it to refresh, then go back into the setting and turn that syncing back on (if you want it to sync).
Click to expand...
Click to collapse
Thanks for your comment. I checked the settings; there are no issues with sync.

hachamacha said:
Just for balance, my experience is more like this one, although I don't think I had to wait days for it to not be a battery drainer. Is everyone in this thread talking about b360? (for whatever variant you have)? I did see this on b320, but have used b360 for about 1-2 months now (Charles) and haven't had any noticeable difference in battery life from Marshmallow. It drains 1-3% / night. Screen on time , say browsing is pretty regularly 5.x hours, and typically I get 2-3 days out of a charge.
I believe everyone that says they've got a problem, but I guess some of us got lucky. Just so it's known: Mine is a US L04*b360 variant.
Note: Just as a possible point of difference. Before I was on b360, I had the phone rooted, with TWRP, and had to wipe the entire thing , rollback to b160 and use Charles to get b360. I never did a reset and I don't turn off functionality. Also, maybe most important. I don't use social media hardly at all. I haven't got Facebook or Twitter installed because I don't like either.
Click to expand...
Click to collapse
Thanks for your comment. My model number is: FRD-L14 and the build number is B360.
Honor Support recommended to "Wipe Cache Partition". I did that without much luck. I have now been wiping the cache partition after every full charge (which is a ridiculous thing to do!). It does help arrest the drain a bit but only on WiFi. As soon as I turn on the Mobile Data, the battery drains at insane speed (about 2-3% an hour with just 5-10 minutes of SoT).

Anyone else experiencing poor battery?

I bought my Pixel in Nov 2016. Battery lasted on average about 1 day & 10-20 minutes based on my personal usage. In the last few weeks, it barely lasts 24 hours. I haven't added any new apps. My battery usage info doesn't show anything unusual or an app consuming a lot of battery. I downloaded GSam Battery Monitor but that doesn't give details on app usage unless you are rooted which I am not.
Have others also experienced poor battery although the phone is not even a year old?
Any ideas on what it can be? I haven't changed my usage either (I only monitor it on weekdays since that usage is basically the same each day).
Just an example here: took off charger 52 mins ago and it's already at 89%.
Sent from my Pixel using Tapatalk

What software are you running? If you don't get the OTA for 8.0, I'd enroll in the Beta. This will prompt you to get the official release at this time. Once that's installed, I'd Factory Reset data and start from scratch.
Alternatively, you can uninstall apps one by one to see if there's an increase in performance/battery life. Also, maybe try wiping cache to see if that helps.

Yes mine went from 5-6 hours SOT to maybe 3 1/2 to 4. Horrible. I've flashed countless factory images. Never abkr to figure it out.

I wouldn't expect it's related to the age of the device necessarily. I only just got my Pixel a few weeks ago and it averages about 4 hours SOT over 24 hours with little left in the tank. It's got a small battery.

Mine is terrible on Oreo

You have to give the software about 2-3 days to learn your usage so that it can set everything for you, if you just installed Android Oreo, then, it's going to be at least a day or two before your battery corrects it self.

I have been on the Oreo dev preview, back to Nougat, now back on Oreo and the battery life just has gotten to be terrible. Factory wipes every time I load a new version on Android.
I get about 1.5 to 2 hrs SoT in a 12 hour period and it just about is dead. I have surrendered to the fact that I will just never had good battery life as long as I own an Android phone and I charge them any chance I get.

TabletConnect said:
I downloaded GSam Battery Monitor but that doesn't give details on app usage unless you are rooted which I am not.
Click to expand...
Click to collapse
Personally I use Wakelock Detector on a rooted phone, but it may be possible to get information without root using ADB.
https://plus.google.com/+GeorgeTanner/posts/gT5f7XntmEu
The Wakelock Detector instructions for not having root are more thorough.
http://goo.gl/Yqdh2F

I am still on Android 7.1.2 running the latest update - NHG47Q (I think this is the latest). I have not tried the Oreo beta but would hope the battery life will improve since that is one of the new features.
I have heard that one should factory reset when going to a major update like 8.0. I just hate to reinstall everything (apps & settings) from scratch. (I am not rooted.)

TabletConnect said:
I have heard that one should factory reset when going to a major update like 8.0. I just hate to reinstall everything (apps & settings) from scratch. (I am not rooted.)
Click to expand...
Click to collapse
Shouldn't have to do that... I've never bothered and it's not caused me any issues. I think people who suggest you do that are probably the same ones who suggest you wipe cache and dalvik cache all the time (burn).

The screen takes an awful lot of battery on this device.

My battery life was getting worse, and a factory reset a few days all fixed it.

benhaube1 said:
My battery life was getting worse, and a factory reset a few days all fixed it.
Click to expand...
Click to collapse
The only issue with that is reinstalling all apps and settings.

Standby time is immensely better but lost an hour or so in sot
Sent from my Pixel using Tapatalk

B0RD34UX said:
The screen takes an awful lot of battery on this device.
Click to expand...
Click to collapse
The screen uses the most power of almost any phone, the Pixel being no exception.
Sent from my Pixel using XDA Labs

My battery drains really fast after I upgraded to Oreo 8.1. 30 minutes of Youtube used up 20% of my battery. It used to be only 10%.

I am,went from 5.5 on nougat to 4 on Oreo to 5 again on 8.1 dp1 and back to 4 on final.....sot of course. No change in usage

try getting rid of Back up to Google Drive took my SOT from 2hrs to 5 very odd

Battery Drain on Android Pie?

Hi All--
I've been on the Android P Beta for a while.
However, starting with the final beta that was released (and now on the final version of pie) I've been experiencing really quick battery drain.
Tried a total wipe and restore, and the same thing. My wife (also the pixel) isn't having those issues at all.
Thoughts?
(nothing shows up in the battery section)

Yes, I had great battery life. Then once Android Pie was released, jumped on the beta to get 9 sooner. Then got the upgrade from beta to final and battery life is horrible. I did not factory reset, I have battery saver on and it doesn'tseem to matter. If I leave on standby, no issues. If I use the phone, it can bleed as much as 10% per hour! Unacceptable. I may try factory resetting, but idk...

have you allocated sufficient time for app battery optimization?

I also have a pixel, Android 9.0/Pie (bought it brand new three days ago) and think battery is draining very (!) quick.
Yesterday I had roughly 2.5 SOT (with battery saver enabled) and this seems consistent with what I can expect typically. I did factory reset and have tried restricting "background activity" for my frequent apps - seems to make no difference. Obviously it had not time to do full battery optimization yet I guess, but I doubt it would mean a that big difference?
Saw a thread where someone mentioned it seems CPU-freq is high/inc. very rapidly when just tapping the screen (GPU-0%), and I can agree with that although I have not the prev. experience of what to expect.
My previous experience is with Xiaomi mi6/mi5 (lineage 15.1), similar usage would give 2x or 3x SOT (however with some other hw-issues.. ).

perIpIx said:
I also have a pixel, Android 9.0/Pie (bought it brand new three days ago) and think battery is draining very (!) quick.
Click to expand...
Click to collapse
Reinstall factory image & see if that helps.

post-mortem said:
Reinstall factory image & see if that helps.
Click to expand...
Click to collapse
Flashed factory image without -w/"wipe". Will that do or should it be "full" factory reset to make sense?

Thank you for your information, I will stay on Oreo.

perIpIx said:
Flashed factory image without -w/"wipe". Will that do or should it be "full" factory reset to make sense?
Click to expand...
Click to collapse
I don't think it would make a difference. The user data is on a different partition.
You could try flashing the image again, without Magisk or any other additions.

I had used up 50% with only 21 minutes screen on time.
I noticed the app Device Health Services, was constantly active in the background.

I had the same like the OP: everything was fine until the last beta came, and battery is draining faster, phone gets hot from even the smallest usage even in the prod release of android pie.
I was thinking it has something to do with being about 36 degrees (summer time....), but it is the same even in cooler temperature rooms. It's like if the phone is constantly doing something in the background, but only if I use it.

It has been a few days since I upgraded my Pixel 2. Battery life is noticably worse, maybe 20-30% more battery drain in a day than what I saw in Oreo.

I notice the issue as well. I did factory reset after update it's been a week. I was on beta and started noticing battery issues in the first beta and throughout. I decided to install Accubattery to track my battery usage and ended up with a result.
My phone states the battery is in good condition but this app says otherwise. I guess it's time to change the battery along with cracked screen!

i'm curious if my battery is shot as well... Seems like after I purchased my used Pixel.. the battery is not as lasting as I hoped for the smaller pixel phone... I may try one of those battery testing apps to see if it will tell me its current health..

I normally welcome up updates, but this update screwed up my battery life so bad. I mean everything was perfect until the update. Now the battery drains so fast I can watch the percentage count down like a timer and now when the battery gets anywhere from 15-40% the phone will just shut down.
I would like to go back to oreo, but it's such a pain in the ass having to back everything up and flash a ROM considering I haven't done that since before I bought the pixel

I have the same problem. I hope Google can fix it.

Wow, that is not normal. Stock android 9 with root and elemental kernel.... I go back to android 8.1.0 and wait for feature releases

I think I found an Draining App/Setting
I disable the RCS Service on my Phone. It can be found under Messages >> 3 dot Menu >> Settings >> broadcast News. Disable it.
And then Bluetooth and WiFi scan disable.

Same here, crazy idle drain after pie, only 50% deep sleep, tried factory reset and no luck

Try BetterBatteryStats. People in that thread spend their free time analyzing logs to tell you what's eating up all your battery life.

jambo89liam said:
I had used up 50% with only 21 minutes screen on time.
I noticed the app Device Health Services, was constantly active in the background.
Click to expand...
Click to collapse
Same problem :crying::crying:

Background battery drain with Pie

Hey people,
Recently installed Android Pie and noticed that battery drain in background has increased.
Anyone else having this situation with the new system?

You are not the only one...I'm trying to figure it out as well...I know on the second beta I had the battery life of the gods. I went 3 days without charging my phone and still had 40% left but after that beta it was all down hill...have you noticed Google play services consuming more battery?

Sometimes. But most of the time play services wasn't that much of a drainer. The worst part is that the "full device usage" has been useless ever since the official release. And I keep all of my apps restricted not to operate in the background.
I have tried going back to Oreo and then installing the update from there. Let's see how it goes from there

BakedTator said:
You are not the only one...I'm trying to figure it out as well...I know on the second beta I had the battery life of the gods. I went 3 days without charging my phone and still had 40% left but after that beta it was all down hill...have you noticed Google play services consuming more battery?
Click to expand...
Click to collapse
I've had Google play services go crazy from time to time on Pie. Finally installed greenify and have greenified as much as possible. Will see what happens. Though I've notice play services really eating up battery in airplane mode.
Also, I think the play store is triggering play services issues. Will see in a day or two.

I've noticed an increase. Lost about 10% last night which is more than I used to. hoping that now pie is final that essential can make optimisations and additions specific to ph-1 that will help.
Sent from my PH-1 using Tapatalk

No problems for me, I'm seeing around 5 sot.
I do d do a full reset though.

I had horrible drain right away. Checked BBS/Gsam and it was clearly GP services and the play store. Just did a stop/clear cache/clear data on both and yesterday I got 8hr SOT.

ridobe said:
I had horrible drain right away. Checked BBS/Gsam and it was clearly GP services and the play store. Just did a stop/clear cache/clear data on both and yesterday I got 8hr SOT.
Click to expand...
Click to collapse
I've done this several times on 9.0, only to have GP services suddenly eat the battery a couple days later. Installed greenify and seen that the play store keeps restarting and the Google app was always working. So to test i disabled them. Will see what comes.
I hope yours behaves!

From the looks of it greenify has been helpful. I resisted on using it because for some reason it made my phone touch-vibrate even with battery saver on. But let's try it again and see how it goes

It takes a few days to settle down.
Sent from my PH-1 using XDA Labs

Hi I had an issue too. XD
Before pie I used to use 7h but now only 5h30
I found problem. It was intelligence battery maneger
I turned off after that okey.
Go settings -) bettery -) bettery manager -) turn off manage apps automatically

Hi my battery is dying fast since 9.0. I think i had about 2mins SOT since last charge and it was about 60%. I too noticed Google App running constantly so I disabled it. Battery is still loosing charge quickly.
If it is the battery optimizer it may day a few days to settle down. I will report back any findings.
On a side note, I installed OTA, then did a full wipe.

If all else fails, factory reset the thing.

I did a fresh install. Noticed overnight 7-8hrs of off time on the screen, it is using about 10-12 percent. Normally 4-5 percent it would use. Running custom elemental kernel as well. Not cool.

Disabling the Google app and or Google play store caused Google play services to eat even more battery.
Now my current test is to enable all Google bloatware. If you notice Google is tying in all there stuff together especially with assistant. My current guess is, because of this if you have certain Google products disabled etc... It causes a circle and constant attempt by one or more apps to accomplish something that's disable.
I'm sure the Googlers don't disable all the Google stuff we do.....

These are my current stats. I turned on battery saver at 15%.

johnny8910 said:
No problems for me, I'm seeing around 5 sot.
I do d do a full reset though.
Click to expand...
Click to collapse
That is nothing tho...I was getting over 8hrs SOT with 8.1. Now I am only getting 4-5 on 9.0.

Heh I am getting between 8 and 12 hrs sot per charge uptine between 15 and 24 hrs the lower numbers are when exclusively on the cell network with no wifi. This is about 1 to 2 hours better than 8.1

I flashed on release. This was what I have gotten so far. Bare minimum use. It does drain fast when in use, but idle is semi decent.

Check out WiFi Calling, I think it's turned on by default. I turned it off and my phone has been pretty good today. Too early to tell if it's better then Oreo, but much be then yesterday.