battery duration on Oreo? - Samsung Galaxy Note 8 Questions and Answers

I'm still on Nougat and battery durration is very bad.
I haven't used the phone since I purchased it 1.5 year ago more then few times.
Should I upgrade to Oreo to increase battery duration?

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[Q] Battery drain after i applied new system update

My phone is draining very fast after installing the 23.0.1.a.5.77 update, was so happy with the good battery life i had before. Now its like all the other smartphones i had in the past
http://forum.xda-developers.com/album.php?albumid=11671&pictureid=47224
Hi benjih!
I double that. Before update I had about 1 d 10h on a full battery charge without Stamina, etc. Since update full battery charge lasts for only 20-21 h. Seems like a significant drop.
Anybody else having the same issue after update to 23.0.1.a.5.77?
First charge cycle after updating didn't last as long as usual, but now back to normal. 50 hours on current charge with 4 hours screen on and 22% remaining.
Don't know why but when you flash your phone with new firmware or update the firmware the battery needs a few charges to stabilise.This is a known fact and happens in most cases that's why many people are stating bad battery life after a update but back to normal after a while relax guys.

Moto X 2014 Battery Issues (6.0)

Hi all,
I would like to talk about my battery. I have never gotten above 2 and a half hours of screen on time, not even on lollipop and I'm on marshmallow now. I feel like doze does not really work because the battery drains at night by over 20 percent just idling. Also, my battery chart shows 3 hours left at 85%. I noticed that Android System was usually at the top of the list of things using the battery the most. Does anyone have a fix for this situation? I only got the phone last summer and believe that battery life should be way better than this.

Battery life is worse after Android Pie (9):

Hello!
I've been experiencing worse battery life on my Nokia 8 since Pie upgrade, I haven't installed any apps nor services...
Note that the battery improved -but not as good as Oreo- after calibration using an app...
Are you experiencing the sane issue? Or should I further investigate?
Thank you..
yes
Same here. I got 12 hours screen on time once on oreo but now, it is a dream. Battery drains fastly due to background services. App restriction doesn't work as well as oreo's restriction. So, this situation causes battery draining. Also there is a weird thing i've faced, battery drains quickly from %100 to %95. I am waiting for Maintenance Release impatiently.
is battery life on oreo really that good?
I'm using pie since day 1 and never got more than 7h sot and 1.5 days.
My battery life is dire since pie, I was impressed with the battery in the 8 until this update, I cant even make a day without having to charge. When I say day I mean from 7am to 10pm as its left charging overnight.
Before pie I could quite happily last 2 days between charges, I'm not a heavy user, initially I thought I must be using the phone more. But I'm actually using it less just so it makes it to the end of the day!
Somehow it's worse again today, dead by 4:30!
Basically just checked phone to see the time, around 10 minutes of faffing in the morning, rebooted it before charging last night incase sonething was using battery. Madness!
For me, I've given my phone a factory reset before I installed the Beta labs/initial final(V5.110, December 2018-January 2019) build. Despite that, I did notice my battery life taking a hit when running this iteration of Pie. I was at most getting not more than 5 hours of SoT on average. And I do use my phone a lot throughout the day, the camera, web browsing, videos and social media. Meanwhile on Oreo, I can get 6 hours on average no problem. Sometimes even 7 hours if I'm lucky.
After updating to V5.140(February 2019) with Adaptive Battery brought in, I seem to have gotten back my average SoC just like when my phone was running Oreo. Running 5-6 hours on average. I'm not sure if Adaptive Battery has anything to do with this since I did notice the improvement immediately. I also disabled some of the Evenwell crap before updating to V5.140, so that may or may not have an effect.
If apps restricted didnt work then try manually restrict each app go to ur up hold it then info Then choose battery from there change background restriction
Ifaced this problem in beta when iwas sleep and wake up morning my battery was almost below 20 percent but i manually restrict all apps and its working 100 percent ?
Sorry to heat that. Have you tried installing some apps like better battery stats to see what exactly is saying up your battery? If your phone is rooted consider installing ForceDoze from f-droid and maybe WakeBlock to regulate some wakelocks that may be the cause of your terrible battery life. I have been able to get great battery life using the latest put version. See screenshot below from a few days ago.
I know that this is old thread but i have solution which i use with my nokia. change default launcher to another lightweight. This works and my battery feel better.
I should of updated, battery went back to normal after newer updates.
However, biggest thing for me, using DNS666 Ad blocker has seemingly doubled my battery life, might be a combination of just gotten bored of the phone or blocking all the ad's saves battery, or a bit of both, its also made the phone feel a lot more responsive overall, i'm using Squarehome as my launcher so maybe that was affecting the battery before?
Maybe which update can fix battery life? I rooted my phone and can't download latest update.

[Help] Battery sucks, 1 hr 40min SOT, down 50%

I've got my S10 exynos variant about a week ago, battery life hasnt been great. Burned through 50% battery with only 1hr40min SOT. ANything i can do do fix that? I am running at FHD(1080), running optimised mode, AOD (tap to show).

Nokia lag when low battery

Is it normal that my phone become laggy when has less than 30% battery? I noticed that it's happenig because at that point it only uses one of the 4 big cores... Is this a bug? I rooted my phone and downgrade it to nougat and when I updated to pie again it started happenig
Please check this after plug your phone to AC with 30% or low

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