yashsingh1/xdaforums huggingface dataset:
[Google Pixel 2 Guides, News, & Discussion] gitku:
My battery was very bad after the 8.1 update both on beta and stable until I wiped after the update and reloaded all my data. Wiping and starting fresh fixed it both times.
[Google Pixel 2 Guides, News, & Discussion] km8j:
Shouldn't have to do that though. Yes my battery sucks after 8.1
[Google Pixel 2 Guides, News, & Discussion] Large Hadron:
My battery life seems unaffected by 8.1. The gauge no longer remains stuck at 100% for a long time, but that was always just an indicator that the calibration wasn't realistic. But the overall run time/SOT looks pretty comparable (discounting day 1, which is always likely to be atypical).
[Google Pixel 2 Guides, News, & Discussion] flunk03:
So it seems like Google enabled the mobile data always active option which is the case even when Wi-Fi is on in the 8.1 update. Not sure if this is the case for all users but I saw that enabled on my phone under developer options. Screenshot attached. Disabling it has improved my overnight standby drain.
[Google Pixel 2 Guides, News, & Discussion] Large Hadron:
That setting didn't change on my device (was off before the update and off afterwards).
[Google Pixel 2 Guides, News, & Discussion] flunk03:
Yes it's not the case for all users. Mine was off in 8.0 and on in 8.1. I didn't check the setting when I was on DP 2, maybe it's affecting users who updated to 8.1 from the developer preview (this is just me speculating).
[Google Pixel 2 Guides, News, & Discussion] Chronzy:
Same. Noticably worse after 8.1.... thinking of going back to 8.0 .025
[Google Pixel 2 Guides, News, & Discussion] Large Hadron:
Well I'm currently on 1.5 days since unplugged, 4.5 hours screen on, 37% remaining. Can't directly compare as I never tried 2 day running with 8.0, but it seems ok to me.
[Google Pixel 2 Guides, News, & Discussion] biogon:
Also have terrible battery life after 8.1.

On 8.0.0 I was getting around 6-7 hrs SoT. On 8.1 I've gotten about half that. With 10m SoT and 2hrs standby I'm already at 90% today.

Ridiculous!
[Google Pixel 2 Guides, News, & Discussion] bobby janow:
One thing I did notice is that battery reporting on 8.0 was erroneous. I could go like 5 hours at 100% and then it would drop like a rock to probably where is should have been all along. I have noticed in the week that I have it running it seems to be improving. I used to drop overnight 0.1% / hour which seemed unreasonable with everything on and syncing all night. Now it shows about 0.7% / hour which is much more in line with what I would expect. As for SOT, I usually don't pay much attention to that although lately everyone seems to be concerned. I plug in at around 50% after 15 hours of use and from what I've seen I have screen on around 2.5 hours give or take depending on video or music steaming that I do with screen off.

One thing I would suggest is to get BBS https://xdaforums.com/showthread.php?t=1179809 from here and see what is going on. For instance one night I dropped to about 60% (I think I was still on 8.0) and looked at the stats. There was a news site video something or other running the whole night. I killed the app, rebooted and it hasn't come back. If you do install it on a non rooted device make sure you go to post #4 for non rooted stats. There is an adb command you'll need to run in order to gather the information you need. Good luck.
[Google Pixel 2 Guides, News, & Discussion] Large Hadron:
I really do think that the main difference with 8.1 is in the calibration of the battery meter. Right now my phone's been off charge for almost 41 hours, has 6 hours SOT and 9% remaining. I don't think there's any problem there.
[Google Pixel 2 Guides, News, & Discussion] Sukhi:
AFAIK, Downgrade is not possible? Can we?
[Google Pixel 2 Guides, News, & Discussion] Chronzy:
Sure can, I went back to 8.0 .025 Nov update and battery is back to normal.

Normally I'd say just download the factory image and flash-all, but that's not working so well at the moment.

I've sucessfully flashed both 8.0 and 8.1 images with a tool I got from Bryant (not sure what his XDA name is) in the Darkroom (Snoke) telegram. Thank him when you see him.

PIXEL FLASH SAUCE_wipe: https://drive.google.com/file/d/1Eb4mt1V-k23h03-A3PkI6ooYYLyC8-0R/view?usp=sharing

PIXEL FLASH SAUCE_nowipe: https://drive.google.com/file/d/1h5YC8h2K2qb9P_CWL3uS71RXwj-9I7e6/view?usp=sharing

Strongly recommend to wipe going between versions like we are, so backup.

1) Download the factory image of your choosing

2) Extract the zip to a folder

3) Rename the bootloader and radio img's to just "bootloader" and "radio"

4) Put them in the "FILES" folder inside the Pixel Flash Sauce folder.

5) Then go back into the factory image folder and open the 'image-walleye-op...' zip and copy all of those imgs to the Flash Sauce "FILES" folder as well.

6) Then go back and click on the PIXEL FLASH SAUCE.bat.

7) Option 3 to flash all then enter, enter, enter.

Did it twice in the last 24hrs no problem- to 8.1 and back to 8.0.
[Google Pixel 2 Guides, News, & Discussion] flunk03:
Can you check in developer settings whether mobile data always active of turned on or not?
[Google Pixel 2 Guides, News, & Discussion] bobby janow:
Unlocked bootloader only.
[Google Pixel 2 Guides, News, & Discussion] biogon:
Ah ha. Was on. Just turned it off. Let's see.

Thanks!
[Google Pixel 2 Guides, News, & Discussion] Chronzy:
Did turning this off make a difference for anyone?
[Google Pixel 2 Guides, News, & Discussion] S.kingkunta:
This Battery Life is Fantastic wtf

4hr and 42 minutes with 25% left.
[Google Pixel 2 Guides, News, & Discussion] Rajasspixel:
Hi, how did you activate dark mode ? Thanks
[Google Pixel 2 Guides, News, & Discussion] PuffDaddy_d:
You need to be rooted and use a dark theme from the Substratum app.
[Google Pixel 2 Guides, News, & Discussion] hmmmsomething:
You can use substratum on pixel with Andromeda app without root.
[Google Pixel 2 Guides, News, & Discussion] Rajasspixel:
I've download the videos for this . But it doesn't seem to work. Does rooting the device make it slower?
[Google Pixel 2 Guides, News, & Discussion] PuffDaddy_d:
I'm not sure if the Andromeda method works for 8.1 yet, but root definitely doesn't affect performance. You shouldn't even try it though until you've spent at least a few hours reading up on what rooting is and how to do it safely. It is not for novices.
[Google Pixel 2 Guides, News, & Discussion] Rajasspixel:
This is my first android device after being with apple since the iPhone 3g. So definitely a novice. But, obviously willing to learn. I hope this is the right forum.
[Google Pixel 2 Guides, News, & Discussion] bobby janow:
Substratum didn't work with 8.1 for about a week only. Works just fine without root ever since.
[Google Pixel 2 Guides, News, & Discussion] jericho246:
Just ordered a Pixel 2. I was worried about the battery being too small but it makes sense that you guys get such good SOT, because the screen is pretty small. I had an OG Pixel XL and the battery was abysmal, it was probably a dud so I returned it and decided to pull the trigger on the Pixel 2. Will post again in a few days, once I receive it, hopefully my SOT will be as good as yours, guys. :)
[Google Pixel 2 Guides, News, & Discussion] PuffDaddy_d:
To be fair, the battery is relatively small for a phone with this footprint. My Honor 8 is nearly identical in every dimension and has a 3000 mAh battery. But yes, the light software experience does do a good job of managing the battery drain.
[Google Pixel 2 Guides, News, & Discussion] Haris000:
How did u get the black ui for settings?
[Google Pixel 2 Guides, News, & Discussion] Chronzy:
Probably either substratum w/ swift black, or it was a dark wallpaper, I don't remember.
[Google Pixel 2 Guides, News, & Discussion] PuffDaddy_d:
Scroll up, this question was just asked.
[Google Pixel 2 Guides, News, & Discussion] jfdebo779:
My battery life after switching to Nova Launcher, with substratum and Andromeda Swift Black theme. I still get Google Now and didn't have to root.
[Google Pixel 2 Guides, News, & Discussion] ZeroLozen:
Does this work on Verizon phones?
[Google Pixel 2 Guides, News, & Discussion] Chronzy:
Honestly don't know, but if you're bootloader unlocked I don't see why not.
[Google Pixel 2 Guides, News, & Discussion] ZeroLozen:
Well the reason I ask is because there was a certain build number (xxxxxx.016) that if you were up to or beyond, then you could not unlock your bootloader. This is why I am asking, because of this patch. Didn't know if the VZW community was aware of this.
[Google Pixel 2 Guides, News, & Discussion] Shan8397:
Bought Pixel 2 a week ago and all in all, I'm happy with how the battery life turns out during me normal day of use. But at night, my phone doesn't go in deep sleep and I have regularly experienced 15-20% drain overnight. I do not have any bad or battery draining apps installed or running in background. Even the Android OS or System battery usage is normal as per my usage. Has anyone experienced the same? What should be done to get a normal 2-3% battery drain overnight?
[Google Pixel 2 Guides, News, & Discussion] Sukhi:
Try turning off the "Always On" Mobile data and "Teethering Acceleration" in Developer settings. They are usually off by default. Not sure why Google decided to turn them on.
[Google Pixel 2 Guides, News, & Discussion] Shan8397:
Knew about the first one and had it off since the moment I got phone. Turned off Tethering Acceleration will see now how it turns out.

Thanks :)
[Google Pixel 2 Guides, News, & Discussion] sstanton86:
Surely tethering acceleration won't make a difference unless you are tethering? Did a quick Google search and it seems it's supposed to increase battery life of one is tethering? :confused:
[Google Pixel 2 Guides, News, & Discussion] Sukhi:
Might be a placebo but I just turned it off as I don't use Teethering.
[Google Pixel 2 Guides, News, & Discussion] davidisflash:
My battery life is meh. Nothing to boast about. Configuration:

Latest Feb security patch, rooted, unlocked

Substratum, 3 minit battery mod

Viper sound mod

Key apps known to cause some drain: FB, FB messenger, Android wear

Wifi always on, bluetooth always on

ElementalX Kernel, 1.04, all defaults

Last night, not touching my phone for 8 hours, overnight drain was 1.2 % an hour. I feel this is high. On home wifi, no bluetooth connected.

Generally with use, I drain 9-10% an hour. Lot of on and off texts here and there, FB scrolling.

I haven't directly measured peak screen on time, but I'm betting it's no better than 4 hours based on stats thus far.

I tend to keep brightness at 75%. I didn't see much improvement reducing it. I didn't see any better or worse stats with custom kernel

---------- Post added at 01:00 PM ---------- Previous post was at 12:57 PM ----------

I'm getting 1.2% battery drain at night. You need to find out what your wakelock(s) are that are keeping your phone awake. If your always on / ambient display are off and you are experiencing that, sounds like a problematic app(s). Get GSam Battery monitor app. It's legit. Report back what the findings are.
[Google Pixel 2 Guides, News, & Discussion] PunishedSnake:
Anyone's battery life go down after February update?
[Google Pixel 2 Guides, News, & Discussion] Shan8397:
Whenever my phone is sitting idle, it will be screen down so Always On display would not be Always on.

I already had the GSam Battery Monitor installed. Just checked it and major battery drain was due to Android System (20.2%) and Kernel - Android OS (19.1%). I have exported the reports but I do not know how to read wakelocks. Can you or anyone help me with these files?

https://drive.google.com/file/d/1dnenYuq5C0ltN9dZzLaShiUx4aKp0yGK/view?usp=drivesdk

https://drive.google.com/file/d/1JlhbzW8a0nNfuPqNmNXmvhZ-goDGRyGH/view?usp=drivesdk
[Google Pixel 2 Guides, News, & Discussion] davidisflash:
I would just Google those two wakelocks that take over 40 seconds. Gsam even let's you Google search inside the app
[Google Pixel 2 Guides, News, & Discussion] jcubed0120:
Yep I've noticed it. Same with my sisters phone. We are both pretty consistent on usage since we are at school all day. Both have noticed that we have to charge more often now. Have only had the phone since late december and have noticed the faster drain. Seems to only happen when screen is on.
[Google Pixel 2 Guides, News, & Discussion] Prattham:
Try a factory reset that helped in my case
[Google Pixel 2 Guides, News, & Discussion] eqjunkie829:
Mine is god awful with the February ota! Hope there's a fix soon!
[Google Pixel 2 Guides, News, & Discussion] mikeynavy1:
Techspot just posted an article about this (reduced battery life) a few hours ago. I haven't used my phone long enough to notice impact of February update, but out of curiosity, how much reduction are people noticing, and is it isolated or widespread? Also, it was reported that many users were reporting that phone was running warmer...which can't be good for battery either. What's weird is that articles that came out prior to the update said that one of the features was supposed improved battery life.
[Google Pixel 2 Guides, News, & Discussion] jcubed0120:
I've noticed it mostly with SoT. Used to be able to get almost 50% more than what I'm getting. I think a practical number would be that I used to get from from a 14 hour day with 40% left. Now I get home with under 20%
[Google Pixel 2 Guides, News, & Discussion] mikeynavy1:
That is significant. I'll keep an eye on mine...and as you allude to...it hasn't seemed to affect my standby time....including the occasional waking up due to spam calls.
[Google Pixel 2 Guides, News, & Discussion] jcubed0120:
I'll also note that I've had data. and Bluetooth off during these drains.
[Google Pixel 2 Guides, News, & Discussion] Gemini_05:
My battery life was horrible ever since I got the Feb 2018 patch update. I was losing about 2%/hour, with my phone sitting idle in good wifi coverage. I tried clearing data for Google Play Services, etc. but according to GSAM, the biggest culprit was the screen.

I ended up doing a factory reset last night and everything is back to "normal"; I'm at 59% left with 3 hours SOT.
[Google Pixel 2 Guides, News, & Discussion] mamarcac:
When will we stop needing factory resets

Honest question, why isn't Android (specifically updates from Google to their flagship phone(s)) able to perform updates without massive battery hits and/or other issues? I also did a factory reset/flashall.bat over the weekend with the February image from Google. Is there a secret trick to updating and not having the phone freak out? Black magic maybe? I'm open to any suggestions at this point, ha. But far too many people report the same experiences for it to be because an app or something is causing it.
[Google Pixel 2 Guides, News, & Discussion] WibblyW:
When you did the factory reset, did you allow the phone to restore itself from the Google backup, or rebuild it from scratch? If you allowed to restore from backup, was anything missing/still require re-configuration when it was done?
[Google Pixel 2 Guides, News, & Discussion] Gemini_05:
I ended up restoring everything from scratch manually. Figured that way, I can do it "cleanly" and just restore stuff that I really wanted.
[Google Pixel 2 Guides, News, & Discussion] eqjunkie829:
Has this resolved battery drain issue?
[Google Pixel 2 Guides, News, & Discussion] Gemini_05:
It was good for a few days; I was getting 6-7 hours SOT. But this has gone down a bit (5 hours SOT). I haven't really installed any new apps and my environment hasn't really changed. Going to keep an eye on it.
[Google Pixel 2 Guides, News, & Discussion] xFirefly93:
(Screenshot from yesterday)

So..

I reflashed February update on my Pixel 2, flashed latest ElementalX Kernel (with a tiny bit of underclocking enabled in the Aroma set-up) and latest Magisk and did add some init.d scripts for reducing CPU wakeups and what not, for maximizing power effiency and so on.

Here is my results so far (6 hours and 8 minutes Screen On Time) with 28% battery left. Pretty impressed, and this is only after the first full charge cycle..

The Pixel 2 is capable of delivering good battery life. It must be something ugly/broken on software level that is going on behind the scenes when people get all those nasty battery issues :/
[Google Pixel 2 Guides, News, & Discussion] Sukhi:
If you want stellar battery without doing much messups, either flash Stock or Flash Kernel and top it up with Helix engine. It got ya covered on everything (Suspend Script for best idle drain, App battery profiles, Governor tuning etc without underclocking). You won't regret. Helix works best with Interactive/eas gov so choose your Kernel wisely.
[Google Pixel 2 Guides, News, & Discussion] xFirefly93:
Want to share a link, so I can take a look at Helix Engine? And get some inspiration for my own Pixel 2 tuning process.

Just for fun. I know how to tune the Android kernel for battery life, w/o sacrificing performance.
[Google Pixel 2 Guides, News, & Discussion] Sukhi:
https://xdaforums.com/showthread.php?t=3745746
[Google Pixel 2 Guides, News, & Discussion] jcubed0120:
Tried it today. Didn't help much. I tried installing less apps after the reset to try and rule out any apps that aren't as popular to try and see if those were the issue. Don't seem to be.

[IMG="battery stats"]https://i.imgur.com/yCTAox2.png[/IMG]

[IMG="second"]https://i.imgur.com/C5ImwI3.png[/IMG]
[Google Pixel 2 Guides, News, & Discussion] xFirefly93:
Btw, neither stock or Flash kernel comes with Interactive governor..?
[Google Pixel 2 Guides, News, & Discussion] Sukhi:
No probs ! It also supports EAS so you can use Flash or Stock kernel aswell.
[Google Pixel 2 Guides, News, & Discussion] eqjunkie829:
I haven't noticed a difference in battery life since manually flashing the March ota today. Anyone else still having battery drain like crazy or have any ideas on how to fix it?
[Google Pixel 2 Guides, News, & Discussion] loof13:
Battery on my Pixel 2. Bought it yesterday

Check out the battery life on the Feb update. Must say I'm impressed.
[Google Pixel 2 Guides, News, & Discussion] OctoberNexus:
Make sure nearby is turned off
[Google Pixel 2 Guides, News, & Discussion] OctoberNexus:
So this after my second full day of ownership first day on the March update of course.
[Google Pixel 2 Guides, News, & Discussion] eqjunkie829:
What's nearby?
[Google Pixel 2 Guides, News, & Discussion] J_T:
Settings -> Google -> Nearby -> Off
[Google Pixel 2 Guides, News, & Discussion] yinaiyin:
Not bad
[Google Pixel 2 Guides, News, & Discussion] psychomaniac82:
Flashed March update yesterday manually. I own the Pixel 2 since early February, so have no experience with older software. Battery was good with February update (i was used to nexus 6p with bad battery, 3 hrs SOT in approx. 20 hours while on the road, 4,5 SOT while at home). This one did a lot better when at home, 5 to 6 hrs SOT easily. But when i'm on the road the whole day the drain was same as the 6P. The drain at home since yesterday already looked better but have to test it today on the road. My feeling is that google fixed something with doze and didn't mention it. Before the march update the battery percentage sometimes dropped a couple percent between screen off and screen on. Looks like the phone doesn't do that anymore. But I'm testing it today and this weekend.
[Google Pixel 2 Guides, News, & Discussion] psychomaniac82:
I can keep it short, nothing has changed since the March update.
[Google Pixel 2 Guides, News, & Discussion] OctoberNexus:
Been putting this thing through it's paces and I'm quite pleased with it.
[Google Pixel 2 Guides, News, & Discussion] penciluser:
Do you have any tips on what to do after installing helix? I enabled the dynamic battery settings. Is there anything else I should do in a kernel manager?
[Google Pixel 2 Guides, News, & Discussion] Sukhi:
Nope ! You don't need the kernel manager anymore. In fact, you should uninstall it to avoid any conflicts. All you need to do is select the right profile for the apps. Use battery for major ones, balanced for demanding apps or apps for which you really need notifications and whitelist apps like GBoard, Play Services, System UI, Launcher etc for a lag free experience. All battery hogs like Facebook, Snapchat etc should be going under battery to take advantage of the suspend script.
[Google Pixel 2 Guides, News, & Discussion] WibblyW:
For the record I have an Automagic script that turns turns on airplane mode and then turns WiFi back on so I can use 'Wifi calling' feature when I'm connected to selected access points. At home for example (where I have good WiFi and poorer GSM coverage) the screen-off battery consumption is then ~ 0.5%/hr with my setup.
[Google Pixel 2 Guides, News, & Discussion] mikeynavy1:
What is a normal expected battery life (wear rate) for this device? I've had mine since last Thanksgiving and after a week of running Accubattery, it appears to be stabilizing on around 6% wear (or 94% of design capacity). I'm a relatively light user and battery has only fully discharged once (as a result of a rogue background app overnight).
[Google Pixel 2 Guides, News, & Discussion] WibblyW:
I've now experienced two Pixel 2's (RMA'd one). According to Accubattery they both settled in the mid-high 80%'s in terms of design capacity. Normally a charge between 25-30% to 80-85%. Phone rarely goes below 25% or above 85%.

I've also noticed that, if I do try and fully charge the phone (say overnight), the apparent capacity continues to rise for that session - i.e. according to Accubattery the battery continues to accept charge. I also noticed that, using an app like Automagic, the phone never seems to report 'fully charged' (even though it sits at 100% for hrs on charge) using whatever API Automagic is leveraging. Also, Accubattery reports quite high battery voltages for a battery at 100%.

Not sure what's going on, but I've stopped worrying about it :P. Maybe the battery technology/variant and/or the charging methodology in the Pixel 2 is more unusual than most - or we're all be killing our batteries sooner than later?!? Either way, battery life between charges seems good enough.
[Google Pixel 2 Guides, News, & Discussion] mikeynavy1:
Thanks for sharing your experience...maybe it is something do with Accubattery not being fully compatible with the some devices, versions of Android, etc. Even yesterday, after a full charge, it then dropped to 93% of design capacity. I've decided to uninstall it and will wait a little while and see, after a future, update what it shows. For what it's worth, the first time I charged after installing Accubattery, I too noticed that it kept "charging" after device capacity...it was reporting like 3,300 mAh of charge capacity when I took it off the charger...impossible.
[Google Pixel 2 Guides, News, & Discussion] seabro01:
The Pixel 2 battery isn't fully charged when it first shows 100%. I had to keep charging for another hour to get a more accurate battery capacity. After that Accubattery said 97% capacity instead of 85%.
[Google Pixel 2 Guides, News, & Discussion] WibblyW:
I can charge overnight and then it's way over 100% capacity according to Accubattery ;)
[Google Pixel 2 Guides, News, & Discussion] seabro01:
The app developer suggests to charge until Accubattery stops showing positive mA. That can take extra 1 to 1.5 hrs.
[Google Pixel 2 Guides, News, & Discussion] WibblyW:
Does your Pixel 2 do that? Even over night, mine is still showing a small charging current in the morning...
[Google Pixel 2 Guides, News, & Discussion] seabro01:
I never charge overnight. I can make it through the next day if I go to sleep with 70%. It stops charging about an hour after first showing 100%. Accubattery will show not charging or slight discharge when it's done charging.