yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S8 Real Life Review] Matrix_Usman:
The one i got till today was 10 hours on s8+ with nx kernel
[Samsung Galaxy S8 Real Life Review] sriver_fx:
Do you use any custom rom??

I cant pass the 4 hours SOT...

and I can see on this thread that a lot of you have more than 5 hours... how can you achieve that..
[Samsung Galaxy S8 Real Life Review] zelenko:
Alexis rom 5.7View attachment 4617197
[Samsung Galaxy S8 Real Life Review] jreid6401:
9 hours SOT?

I saw 9 hours SOT on my girlfriend's s8 and was dumbfounded. No custom ROMs, power saving modes, completely stock s8. My s9+ gets 5 1/2 hours SOT on a good day. Any explanations?
[Samsung Galaxy S8 Real Life Review] AB__CD:
My mom's S8 (was mine, gave it to her) gets 7h on most days. It also has all of two apps on it. Has a new battery and a decent CPU bin, but otherwise nothing special.
[Samsung Galaxy S8 Real Life Review] jairrab:
A year with the s8+ and screen on time is still very good. Still getting 7+ hours SOT on full display
[Samsung Galaxy S8 Real Life Review] goth_bacon:
Owned by S8 (US, unlocked) since June 2017. I used to get good battery life, like 6 hours SOT. Since earlier this year though the battery life has been steadily declining. I now get 2-3 hours SOT on a full charge. I've tried factory resets, running GSam and BetterBatteryStats with ADB permissions, and at one point sent it to Samsung and they fixed a "USB 3.0 Connection Fail," whatever that means. I can't find any rogue apps or wakelocks that are constantly draining battery. I've installed Naptime but I don't think it helps.

Has anyone found a solution to persistent, inexplicable battery problems?
[Samsung Galaxy S8 Real Life Review] pali2704:
The problem is Android. With every software update the battery seems worse. I've had my S8 since march 2018 and the SOT also went down from 6h to about 4-5 h.
[Samsung Galaxy S8 Real Life Review] ben_linux:
NO. The problem is Samsung.

I have a lot of phones, including Nokia 8, Nokia 7+, OP6. These two are under Pie update, and I can confirm that they have 10% more juice at the end of the day.

Each time with Samsung, their battery are worse and worse. From 5h SOT when you buy it to 3h after a couple of months. It's abnormal.
[Samsung Galaxy S8 Real Life Review] batmobile_bang:
My S8's idle battery drain improved drastically with a factory reset. You could try and uninstall unnecessary apps and perform cache wipe too.
[Samsung Galaxy S8 Real Life Review] supermaxkato:
8 hours sot

I've been using smartphones since my HTC xv6800.

And I've never had a better battery in a non-plus device than this S8!

The best I've gotten so far is 8 hours of screen on time (see screenshot).

I'm in the US and here are my specs, settings, and charging routine:

SPECS:

Samsung S8 Xfinity Mobile (shipped brand new)

Qualcomm CDMA

Android 8.0 (what it shipped with)

NOT rooted (but I have used ADB commands to issue write secure settings to some apps)

NO Samsung battery saver modes are turned on and NO battery saver apps are installed

SETTINGS:

Screen off after 1 minute

Screen resolution set to HD (lowest possible)

Bluetooth off (used sparingly)

Wifi on (50% of the day)

Data on (10% of the day)

Location set to high accuracy

Always on display entirely off (I use ACdisplay instead)

Video enhancer off

All advanced features are off

I have 211 total apps installed

Samsung dark theme installed

Face ID and fingerprint sensor both off

CHARGING ROUTINE:

I charge it overnight, every night (usually 12am-7am)

I never charge with the phone on, and only charge with the phone powered entirely off

I never charge it during the day because I never need to
[Samsung Galaxy S8 Real Life Review] Jason_20:
I have a very bad SoT duration on my s8.

I have installed greenify with those useful xposed features enabled and I limited the wakelocks and alarms on almost every user apps, but still get 3-4 hrs SoT.
[Samsung Galaxy S8 Real Life Review] pedodroid:
S8+ Exynos Single-SIM mostly on wifi but using navigation a lot almost 7 hours 23 with 6% battery left.
[Samsung Galaxy S8 Real Life Review] artaniss11k:
I stayed updated with every new release untill recently when i realized my SOT whas under 5h when my battery was under 10%.

I went down to Alexis 5.5.1 rom with latest velocity kernel v11 and saw that my SOT improved to 8h which i got when i bought the phone in 2018.

Conclusion: every software update drains more battery.
[Samsung Galaxy S8 Real Life Review] Flmos:
Since I installed the android Pie beta3 update I started monitoring the SoT and noticed it is very poor. I think I had the same even before intstalling Pie.

I get only 3h SoT and the screen is the second in the list:

Android System 16%

Bluetooth 14%

Screen 13%

...
[Samsung Galaxy S8 Real Life Review] beetlerockz:
Woah!! How you use your phone mate? I have never been able to even cross 3 Hour SOT.
[Samsung Galaxy S8 Real Life Review] ELMoro752:
Something is wrong with your phone. I'm currently at almost 5 hours SOT with 30% left on the battery.
[Samsung Galaxy S8 Real Life Review] beetlerockz:
Is that the official ONE UI or you flashed yourself?

And secondly, OneUI helped with battery improvement or not?
[Samsung Galaxy S8 Real Life Review] Dragon125c:
I'm using the regular s8 duos, SOT was around 6-7 h with moderate use one android 8.0 oreo and , i installed the 9.0 pie one ui beta currently on beta 3 the SOT has decreased drastically, now i get 3-4.5h of SOT.

So i'm wondering if the battery life will be better when the official update arrives or it's just another cheeky move to make me upgrade my phone or does the pie version drains battery faster in general ?

Is any one here experiencing the same because i will try the beta 4 if the battery keeps on dropping i think i will downgrade to 8.0 .

Settings used in both 8.0 and 9.0 :

Medium power saving mode

Cpu reduced to 70%

Fhd +

No always on display

40% of the day on 3g

Location mostly off

Charged overnight

Storage status 44.05/56 gb filled.

What i usually use it for:

40% opening pdf files

40% on social media

20% gaming

---------- Post added at 10:52 AM ---------- Previous post was at 09:54 AM ----------

I installed the one ui beta from xda on the s8 and it decreased battery life drastically , i don't know if the official update will bring back the solide battery life on that i was getting on 8.0 oreo with the same moderate use
[Samsung Galaxy S8 Real Life Review] gentlemanboy:
To be honest, I was facing 2,5h OST on 8.0, after factory reset, disabledmany system app and using greenify ,then I flashed 9.0 on my exynos s8 and it increased to 4hours~, atleast its giving more OST lmao
[Samsung Galaxy S8 Real Life Review] Dragon125c:
Galaxy s8 duos exynos

I've installed the 4th beta and it did boost my SOT by 2h compared to the previous betas, basically i'm almost getting the same sot as it was on oreo, i installed it today so i'm not sure if it will hold up, but it looks promising so far 33% with 4h45min of SOT with moderate to heavy use.

My device is like 1 year old maybe yours is affected with battery draining from aging, try using power saving mode it helps quite a bit.

Settings i use:

Medium power saving mode

Cpu reduced to 70%

No always on display

Video enhancer on

Fhd+ screen resolution

40% on mobile data

1h of pubg

Other on social media

With night mode on.
[Samsung Galaxy S8 Real Life Review] Pixelguy:
Just curious do you use whatsapp, Facebook and Instagram?

I have a theory that social apps kill battery.

I've owned Samsung S6, Nexus 6P, Sony Xperia and now my S8 which I can only get 3-4 hours screen on time maximum. All the other phones were even less!

But I have always used social media apps on all phones..
[Samsung Galaxy S8 Real Life Review] Dragon125c:
After the beta 4 one ui the battery has regained its performance, i'm getting 6-7h OST, i mainly use Facebook, Instagram and YouTube a lot with some reading and medium gaming.

Try activating medium power saving mode reduce cpu speed to 70% you won't notice any difference in performance cause even at 70% it's plenty powerful to run basic apps, dark theme, Fhd+, no always on, i get like 1-2h of extra SOT with this configuration. If nothing changes do a factory reset.

What's your software version ?

I m using the s8 duos
[Samsung Galaxy S8 Real Life Review] Ivoresor:
Hi,

I usually read a lot but don't post...

I have a Galaxy S8 on Oreo and i'm having around 3 hours SOT.

I've tried many things already. The only good thing now is the standby drain. At night i'm losing around 5% instead of 20% in the past.

As many of you i used to have a stellar battery life under Nougat. It isjust night and day compared to my Mi4c with its mediocre battery and its bad optimized SoC...

At the moment here is what i've done:

Flashed an official ROM (moving from Vodafone DE ROM to XEF France) with factory reset.

Using a black/dark theme from the store. I tried Substratum in the past. It looked good but was a pain in the butt everytime you have to update an app.

Followed Neomancr's guide on reddit

Using Naptime (adb permission granted, though i'm not sure it really changes something)

Using GsamBattery Monitor (adb permission granted)

Most of the day, Bluetooth is on as well as WI-FI (though should be off when idle according to Neomancr's guide, but i don't really see it because at the time i unlock my phone the wifi status icon is visible).

I'm mostly browsing the web, watching YouTube (Vanced edition), some social media and many 10-15 minutes of gaming everyday.

I wouldn't consider that as heavy use but seems so or maybe I did something wrong...

Screen resolution is set to WQHD+ (FullHD+ would bring me only 10-15 minutes more according to device management tool)...

Any idea, any suggestion?

I know it is possible to disable system app with package disabler but is it really efficient and safe? :confused:
[Samsung Galaxy S8 Real Life Review] Benjamin2557:
Hi, I have an S8+ dual sim and I get 4 hours SOT (sometimes nearly 5 or 3 if I use it with shorts sessions) and I use also many social apps during the day. I had 3 to 3:30 SOT on my S5 Snapdragon 801 so I dont see an upgrade considering the battery size of each even with a 10nm CPU process.

Envoyé de mon SM-G955F en utilisant Tapatalk
[Samsung Galaxy S8 Real Life Review] shayanb2004:
Damn it. I don't know how you guys get so much sot. Mine will be 4 hrs max. Running on a stock android pie, G950FD, no root. Got worse after updating to pie. I had my phone for 1 year now.

I tried disabling background activity for all apps didn't work. Couldn't use bk disabler.

It is so much annoying. Please someone show me a sloution.
[Samsung Galaxy S8 Real Life Review] Benjamin2557:
Are you using social medias like an average user ? I think this is pretty normal because I get the same.

Envoyé de mon SM-G955F en utilisant Tapatalk
[Samsung Galaxy S8 Real Life Review] shayanb2004:
No social medias.

Little linkedin, whatsapp and telegram.

No instagram, facebook or twitter

I just flashed a custom rom instead of my stock rom. Thought it might help.

I will wait for a few cycles to see how much it affects my battery

I am just jealous that others can get 6 to 8 hours of sot with heavy usage :'(
[Samsung Galaxy S8 Real Life Review] ChaTy:
Buddy use pakage disabler pro. I use that and my sot went from 4 hrs to 5.3hrs. I am using same model as yours; 950fd with one ui pie
[Samsung Galaxy S8 Real Life Review] skynamXIV:
Is it only for me or is the battery life on Android Pie 9.0 is worse compare to Oreo 8.0??
[Samsung Galaxy S8 Real Life Review] ChaTy:
Can u post your usage ss? This is what i got. 5hrs of SOT. 950fd / one ui / feb security patch.

Attachment in the next post. (Tapatalk didnt allowed me to attach the photo in this post)
[Samsung Galaxy S8 Real Life Review] ChaTy:
This is what i got on my 950fd / oneui / February security patch. View attachment 4743762
[Samsung Galaxy S8 Real Life Review] Benjamin2557:
Me 4 to 4 and a half hour SOT one UI march update with stock ROM, stock kernel. I think custom ROM might help to reach at least 6h.

Envoyé de mon SM-G955F en utilisant Tapatalk
[Samsung Galaxy S8 Real Life Review] skynamXIV:
View attachment 4743842

I am using custom ROM, was using LightRom Pie and it lasts me around 3.5H average, now using Alexis 7.5 and this is what I got. It's with NX24 kernel, might test out TPG kernel. If I watch movie ofcourse it can add another hour or so but I'm testing out my normal daily usage, WhatsApp, Instagram, Browser. And note that this is what I get after using Medium power saving (Limit 70% CPU), HD screen.
[Samsung Galaxy S8 Real Life Review] ChaTy:
Have u tried stock pie or oreo? And dont forget to use package disabler pro, my phone not only stopped heating but i got 1-1.5hrs of sot in addition.

I ll upload the xml if u want.
[Samsung Galaxy S8 Real Life Review] skynamXIV:
Can I find Package Disabler Pro from Play store? No never tried stock since Nougat, but I would like try test out Stock Pie, would you know which one is the stock ROM or where could I find it?

Yes please upload it. Cheers.
[Samsung Galaxy S8 Real Life Review] ChaTy:
Go to sammobile.com/firmware and find your device and region there. Download it and flash it via odin.

U will find the pro version if package disabler on google.

I ll upload the xml in a while.
[Samsung Galaxy S8 Real Life Review] Benjamin2557:
Ok this is what I'm getting too. I get similar results with mine. But when I said custom ROMs, I meant custom light pixel ROM which has no One UI/ Samsung experience heavy stuff.

Envoyé de mon SM-G955F en utilisant Tapatalk
[Samsung Galaxy S8 Real Life Review] r00t_user:
My battery life was great until that pos android pie update samsung pushed. I honestly feel like it was done on purpose but who knows, the UI and battery before was so much better. Now I have to root but Id lose alot of my cool features like secure folder and the like.
[Samsung Galaxy S8 Real Life Review] fojumdk:
I agree i think they do it like apple.

Just swapped the battery for a brand new one.

Guess what. No difference in battery life.
[Samsung Galaxy S8 Real Life Review] r00t_user:
I factory reset my phone and that did the trick, while I dislike the new UI, its growing on me. To be completely honest though, since launch of the S8 I still love this phone more than any other. I am tempted to get the S9 only because its a bit cheaper and for the fingerprint scanner position. 1st world problems.
[Samsung Galaxy S8 Real Life Review] Pixelguy:
Okay so here's a question..

Is anyone using there phone to full potential, all features active, all settings on maximum, every app they want installed, nothing disabled...

and getting more than 3-4 hours SOT?
[Samsung Galaxy S8 Real Life Review] jotacorredor:
Valid question, I use my phone full everything all the time and that´s about rigth with the sot times I get, never put much attention to it as I feel my battery performs just the way it has always has been, no worse no better. I think the may update did bring some huge improvements as I have read a couple of threads indicating this but Im on build with april´s base so I´m yet to experience any boosts. Slds,
[Samsung Galaxy S8 Real Life Review] cobrarx8:
I swapped my battery just a week ago with a replacement from ifixit. I do have everything at high power UHD resolution, Bluetooth is permanently on because of my connection to gear S3. Only disabled the Facebook and Gmail app. Installed a lot of apps. That's all. The maximum SOT I get with this new battery is 4h. Hope this helps.

Honestly I am a bit disappointed, cuz my original battery started to shut off randomly and had only around 3h of SOT. With new battery I got 1h+ not what I was expecting though.

Cheers

Edit: forgot to mention, display brightness is at 50% most of the time.
[Samsung Galaxy S8 Real Life Review] M0gY:
Heating at normal use

Idk really is this the right thread for this but I have issue really strange.I recently about week ago Update phone on May Update,Pie...everything was fine...but yesterday my phone from 15 % battery drop to 2 % and suddenly he just turns off.Ok,no big deal...maybe new Update or something.I put a charger turn the phone on,and he start to heat ( I am using Droid Info,and battery was on 39 percent,I had this issue for the last few days ago).But the BIG issue is when I charge the phone,start to use him normaly...browser chatting nothing special he start to heat up up to 38 percent,and he was really hot woww He was never acting like that,I used to playing games a lot and never he hot like this.Idk what to do,so normally use he goes in 5 to 10 minutes to 38 percent,I need to turn off internet and lock him so he will cool down.So can you help me somehow until June Update comes up...And yes,I am really thinking about LightROM,battery life is horrible
[Samsung Galaxy S8 Real Life Review] Pixelguy:
That sounds about right to me! My battery from new used to get about 4 hours now two years later it gets about 3:30 hours SOT.

Iv constantly used everything at maximum settings with no compromise other than auto screen brightness.

I unplug my phone at 8am and it usually gets to %15 at about 10pm so it's fine for me!

Nice to see some actual real results rather than these "I get 300 hours SOT" posters that use their phones as nothing more than a dumbed down paperweight. ?
[Samsung Galaxy S8 Real Life Review] sheenswizner:
I have also noticed the same issue when battery remains 20%, it starts draining like hell and starts heating.

And that time I feel like throw away and buy some other brand !
[Samsung Galaxy S8 Real Life Review] emotatertot:
Yeah. The only I don't have enabled is sync. I unplug my phone the moment it gets to 100%, get 5-7 hours SOT. With standby I can get 10hrs standby 3-4hrs SOT
[Samsung Galaxy S8 Real Life Review] Ace42:
Nice little device. Bought one for next to nothing, and wow, the S8 is something alright. Swapped to U1 fw ofc- cause who wants the magenta boot, right? As I was saying, battery life is great. Not surprised tho, both the v30 and Z2F are already known for endurance (with the 835 being the common denominator). Buh bye Note10, it was nice knowing ya.
[Samsung Galaxy S8 Real Life Review] Ace42:
The S8 (SD)'s battery life has normalized since day one (a few weeks for me), and content is not quite the proper term to reflect my experience. I definitely made the right call. And to those that know of the matter being referenced, don't sell/trade your S8. Opportunities to get this perf/price ratio are far and few between. It still picks at my head, talk about luck.

In any event, debloating was done, in addition to the use of swift to acquire black themes in a multitude of apps.
[Samsung Galaxy S8 Real Life Review] Zendesk2:
G950F (S8)

Pixel Experience android 9.0 - 20191130
[Samsung Galaxy S8 Real Life Review] RuizLenatoh:
My battery is trash lmao

My battery is very trash it doesn't even last 4 hours
[Samsung Galaxy S8 Real Life Review] verytobyb:
my S8 is running android 7 and last time i checked i had 10% battery and 6 hours screen time

Enviado desde mi SM-G950F mediante Tapatalk
[Samsung Galaxy S8 Real Life Review] Max remont:
Samsung galaxy S8 G950 How To Replace the Battery
[Samsung Galaxy S8 Real Life Review] patsonator:
This battery is good enough for me. G950U with latest Pie version.
[Samsung Galaxy S8 Real Life Review] mrmcphisto77:
Is there anyone with ONLY 4G (or any mobile) usage and SOT?

Thanks
[Samsung Galaxy S8 Real Life Review] NekKratos12:
2024 UPDATE:​

after 7 year of services, i had to change my s8 battery. guess what. i found one cheaper.. i dk if is it orginal. but i have exactly the same average on screen time:

Maxium of : 4hs 24minutes.

FULLHD+, sincronization, gps. AOD. dark theme.

Hope it helps
[Samsung Galaxy S8 Real Life Review] bravo_alpha1:
So today I only got ~5 hrs SOT but I was in a bad reception area at work.

So I stick to my comment about getting 6 hrs SOT on average. Stock ROM, use Waze GPS, Amazon music, FB, IG, three emails syncing, Bluetooth synced to my Gear S3, location services on high accuracy. Misc app use like XDA, Android Authority, Snapchat, Samsung Pay, chrome, Samsung browser, theme store.

This FN phone is the GOAT!! End of story, kid.
[Samsung Galaxy S8 Real Life Review] NimaMirzai:
Wow guys, your battery lifes are amazing. I consider mig self mid-high user however i get max 3h SOT och 15h Battery life.

AOD ON

BT/WIFI ON 24/7

GPS ON high acc

1 exchange account

Apps i use

Spotify

Instagram

Snapchat

Whatsapp

I have already done 2 factory resets, cleaned cashe 2 times.

While factoy rested, not installed any apps, simply using stock apps, still same ****ty SOT. Maybe got 30min more.

Samsung service check it for faults and didnt find any, reflashed it.

Dafuq is wrong with my phoooone?!
[Samsung Galaxy S8 Real Life Review] NimaMirzai:
Please also help my in my thread

https://xdaforums.com/general/general/hell-wrong-s8-t3664901/post73597390#post73597390
[Samsung Galaxy S8 Real Life Review] bravo_alpha1:
What about screen brightness or screen timeout time?

If you have wifi, I would suggest turning airplane mode on and then connect your wifi. With AT&T they have "wifi calling" which means I can call and text using wifi. It helps.
[Samsung Galaxy S8 Real Life Review] deraiz12:
S8 or s8 plus ? Exynos or snapdragon ?
[Samsung Galaxy S8 Real Life Review] bravo_alpha1:
S8 on AT&T...so snapdragon.
[Samsung Galaxy S8 Real Life Review] deraiz12:
Thank you
[Samsung Galaxy S8 Real Life Review] NimaMirzai:
​

I have auto brightness off.

I have already tried leaving the phone on with airplane mode and had a 5% drop during 8hours. Which suxx.. My phone would still be 100% :(
[Samsung Galaxy S8 Real Life Review] TKG26:
Oh oh.. up at 545am at 100% charge of my wireless charger shower breakfast watch some Facebook vids and at 640am I was at 47% battery

---------- Post added at 11:25 AM ---------- Previous post was at 11:23 AM ----------

Must be a fluke.. I have had phone for a week. Here is a typical day
[Samsung Galaxy S8 Real Life Review] Jostian:
Am impressed to, was only getting 3 to 4 hours SoT, then tweaked phone according to this article (disabling apps etc.) https://www.xda-developers.com/the-...r-community-radically-improved-my-experience/ and now, after using the tweaks in the article I'm on 7 hrs SoT with 15% battery left, so very impressive imho.
[Samsung Galaxy S8 Real Life Review] Gilley:
Thanks for the link, i've wondered what to disable as i can barely get 3 hours of SoT so hoping this will help. I left Knox up so we will see the difference.
[Samsung Galaxy S8 Real Life Review] anewday:
Is it mostly on wifi?
[Samsung Galaxy S8 Real Life Review] anewday:
Amazing! Charged phone to 100% and used phone for 2 hours with 80% remaining. So, it could last 10 hours on screen time. Display set to 2k, auto brightness, and 4g on.
[Samsung Galaxy S8 Real Life Review] Gilley:
Well thats good for you, I'm still getting 3 hours of SOT

Only thing I really left on was my Knox just in case I decided to use Samsung Pay but dont think that will change it to 3-4 hours more of SOT lol
[Samsung Galaxy S8 Real Life Review] Dannytk:
Heys guys,

I'm getting an average of 6h:30 SOT on my S8+ with 10/15% battery left.
[Samsung Galaxy S8 Real Life Review] amakuramio:
My S7 Edge (new battery, 7.0 debloated) has at least 6 hr sot. After reading this thread I will refrain from upgrading.
[Samsung Galaxy S8 Real Life Review] alexgarciac:
Hi guys always on 4g normal daily use using G950F

Batstock rom

Kernel N204

AOD off

Location ON

Brightness Auto

[IMG="general"]http://i67.tinypic.com/2iv1x55.jpg[/IMG]

[IMG="sot"]http://i66.tinypic.com/2s9cfvn.jpg[/IMG]
[Samsung Galaxy S8 Real Life Review] jonny68:
looking forward to getting mine soon, have the S7 edge and it's not bad battery wise.
[Samsung Galaxy S8 Real Life Review] anewday:
Anyone compared screen on time with display set to 1080p versus 2k?
[Samsung Galaxy S8 Real Life Review] Jostian:
Yes I dont have data on much as have wifi at home and office, but when I use Data I dont notice that its much worse, a little but not significant.

---------- Post added at 01:50 PM ---------- Previous post was at 01:49 PM ----------

mmm, haven't tried but have seen others say its about 10% more overall, which is not much, depending on usage patters too I guess.