serious battery drain after march security patch - Google Pixel 2 XL Questions & Answers

Since the March update I have been losing 35-50% of battery between 630-5 without touching my phone once during the day , has anyone experienced this?

My dad's Pixel did it with the February update. Factory reset fixed it. "Android System" was using tons of battery all the time. I haven't had any problem with mine yet.

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battery life since latest update

Since the latest update about a week ago (QD4), my battery life has been pretty damn terrible. It most recently went from 25 to 1 percent in 10 minutes of just browsing Twitter. Has anybody else noticed this? I have wiped the cache. It's a shame since the battery life was one of the best selling points of the phone, particularly since the 7.0 update.
No issues here with QD4. Have you performed factory reset after update?
I have not but tomorrow when I get my computer back, I'm gonna try to Odin back to the previous version. Will report any results

Random Shutdown Problem (8.1 related?)

So I know a lot of people are reporting shutdown or reboot issues on the Pixel XL 2. I was wondering if anyone has pinpointed this to android 8.1? Or if this issue is also happening on Android 8.0.1? On my old Nexus 6p with the Android 8.1 DP1 and DP2 I would get random shutdowns where I couldn't turn the phone back on unless I placed it on the charger for a second; no matter the battery life. And I put a brand new battery in it like 2 weeks ago and Accu Battery reported 115% health. I just got my new Pixel XL 2 and I am giving my Nexus 6p to my brother so earlier this week I restored stock on my Nexus 6p to November 8.0.1 (OP6 I think). And all this week while still using my Nexus 6p the random shutdown issue went away. So that got me thinking the issues are Android 8.1 related? Anyone confirm this?
Just trying to help the community!
https://forum.xda-developers.com/pixel-2-xl/help/getting-random-reboots-t3692366
No random reboots (yet) but the difference between the time it takes my phone to unlock using the power button or fingerprint on the November release and DP2 is staggering... On the November release (stable) unlocking is lightning fast.. DP2? Very slow... I don't know why!!! A few have had this issue but most haven't... it's weird and I hope whatever the issue is gets fixed? I feared it was hardware related but it works as it should on the November release.

Poor battery life

Hello, i have a problem with my A2 lite. Battery life is just 2days and 4h SOT. Suspect is system consumption 44%. Have you experienced that someone? I have to try factory reset, or what? Thanks for help.
You should definitely factory reset the phone, you should not be below 6h SoT with this battery... Im regularly getting around 8 hours of SoT depending on what u use...
Same here. 1 day after the november security update and I have almost the same numbers as the OP. Coincidentally, 2 days ago my ticwatch e started draining battery dropping to almost half of what i was used to. I suspect the update messed up something.
No strange battery drain since November update on my side. Maybe an app you use was updated at the same day which is causing the drain.
Facing the same issue after november update. Same usage, same apps. Might have to factory reset
Edit: careless of me lol
So I did factory reset. Issue with battery continues. Android system and google play services using most battery, altogether about 30%. SOT is basically half of what it used to be. Google play services are on the latest Nov12 version.
Edit: Whatever is broken, it also affects the battery life of my wear os device (ticwatch e). After connecting the watch to old cell phone (ascend p7) battery drain of the device stopped
It was the fault of the november security update and now there's another security update which is going to fix the battery draining issue!
Let's wait few days to see. Installed yesterday and the phone battery looked promising... Until paired with my wear os device (Ticwatch e). Then the battery drained started again, on both devices. Google Play Services still have top usage. (I tested the watch with my old phone running on lolipop, all ok there, so it's got definitely something to do with the latest updates)
Had same issue with 1st november patch, now the 2nd seems to have fixed: again slow draining...fine!
I've also experienced bad battery consumption since my 2x November updates, from 9+ hours SOT to 5 hours (approx 2 days to 1 day)
have the same problem, bought the phone, it was offering me upgrade to android 9, i did it, and the battery cannot hold for more than some 29 hours.... i cannot see whats draining it unless i root it, because Gsam cannot see which apps specifically. anyone still have the issue on android 9?
santos1911 said:
have the same problem, bought the phone, it was offering me upgrade to android 9, i did it, and the battery cannot hold for more than some 29 hours.... i cannot see whats draining it unless i root it, because Gsam cannot see which apps specifically. anyone still have the issue on android 9?
Click to expand...
Click to collapse
Yes, I have the same issue, on Android 9 I can't get more than 6h ScreenOnTime. That's the reason why I prefer Oreo
santos1911 said:
i cannot see whats draining it unless i root it, because Gsam cannot see which apps specifically. anyone still have the issue on android 9?
Click to expand...
Click to collapse
GSam Battery Monitor can be granted some rights by adb (no root needed), so it can show consumption per app.
Have a look at
GSam Battery Monitor -> Menu -> More -> Enable More Stats
I ususally have less than 2 days with 6-7 SOT. If it's less, GSam shows me, which app consumed more than it should.
Howdy2 said:
GSam Battery Monitor can be granted some rights by adb (no root needed), so it can show consumption per app.
Have a look at
GSam Battery Monitor -> Menu -> More -> Enable More Stats
I ususally have less than 2 days with 6-7 SOT. If it's less, GSam shows me, which app consumed more than it should.
Click to expand...
Click to collapse
mine says i have to root it in order to enable it. in the same menu.
been browsing the MIUI forum, some people having the same issue, the guys who dont have that issue, are claiming its adaptive batterys fault and that it will normalise in a week or so, when adaptive battery does its thing.
sound odd, but ok.
also, it says that rollback to oreo is not recommendable because some functions could get buggy.
I had a problem after upgrading, downgrading and upgrading again. Was apparently caused by a modem firmware issue. Reflashing the modem from 10.0.3.0 fastboot image fixed it for me.
Showed up as "system" but nothing that could be pinpointed with GSam (root) other than high load in the kernel.
santos1911 said:
also, it says that rollback to oreo is not recommendable because some functions could get buggy.
Click to expand...
Click to collapse
not true. i have done the downgrade without issues. Oreo, in my opinion, is very optimized for our mi a2 lite....im waiting a better Pie version. if you want to read how to do the downgrade here the link https://forum.xda-developers.com/mi-a2-lite/help/sim-card-issue-downgrading-pie-9-0-t3874350/page6
okay so what should i do now? after downgrading from 10.0.4.0 pie to 9.6.11.0 oreo and rooting and it got even worse than ever. Please advice me fast!
http://imgur.com/gallery/ny3AWee
SadToni said:
okay so what should i do now? after downgrading from 10.0.4.0 pie to 9.6.11.0 oreo and rooting and it got even worse than ever. Please advice me fast!
http://imgur.com/gallery/ny3AWee
Click to expand...
Click to collapse
I don't know how you downgraded your phone but I've downgraded mine from 10.0.4.0 to 9.6.11.0, battery life is better than February update. Phone is snappy and had no issues at all (except for SIM2 which I don't use). I've also rooted it with Magisk.

Bad battery life after March OTA

Hello everyone, I was getting EXCELLENT battery life on my phone consistenly ( 7 hours of SOT over 30 hours ), until I flashed the march OTA.
Do you think factory resetting the phone may fix the problem ? or maybe something else ?
My phone is rooted with stock recovery.
Thanks
youssefkr said:
Hello everyone, I was getting EXCELLENT battery life on my phone consistenly ( 7 hours of SOT over 30 hours ), until I flashed the march OTA.
Do you think factory resetting the phone may fix the problem ? or maybe something else ?
My phone is rooted with stock recovery.
Thanks
Click to expand...
Click to collapse
Only one way to find out my friend. Many folks have done that very thing since 9.0 hit last August to rectify poor battery life. Personally, I do that very thing every 3-4 months just to keep things cleaned out. My P2XL is 18 months old and I still average the same SOT as I did when I got it :good:
I tried a factory reset too due to low battery life. At december path I was near the 8hours.
Now it's more like 6h-6h30. It still good but far away.
Today I desactive in "options for developers" and 'tracking system" both slides. Battery life seems better. I will see later.
Le_Combattant said:
I tried a factory reset too due to low battery life. At december path I was near the 8hours.
Now it's more like 6h-6h30. It still good but far away.
Today I desactive in "options for developers" and 'tracking system" both slides. Battery life seems better. I will see later.
Click to expand...
Click to collapse
What did u do? don't understand
I desactive both slides on the second screenshots

November Update Battery Drain

As stated in title...Does anyone else phone have bad battery drain after the November update as well issues with blueooth connection when using Android Auto?
Nycz42 said:
As stated in title...Does anyone else phone have bad battery drain after the November update as well issues with blueooth connection when using Android Auto?
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Click to collapse
i was about to ask the same question,
the battery drain is extremely insane dude,
on android 12 my battery would last for 7-10 hours and now after upgrading to android 13 it barely lasts for 1-2 hours,
I'm downgrading back to android 12
My update never gave me android 13. Still on A12, it was just a security update for me.

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