yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S21 Questions] JCMate10:
Hi

I gave up and have decided NOT to go back to Samsung. My new phone? I switched to iPhone 6s temporarily while watching this thread to see what happened... I got so happy with it that I purchased the iPhone 12 mini, 128 GB. Awesome little phone! Great camera (I am missing the zoom, however), screen, performance, etc. And now the interesting part... SOT... I use 50-75 % battery each day and get between 4-6 hours. So I have NEVER had the need to charge it more than once per day. Oh, and the battery is less than half the size of the one sitting in the S21 ;-) Not trying to start an Android vs. iOS war - Both are great operating systems and most users wont notice any difference.
[Samsung Galaxy S21 Questions] mohansethu:
Wow. This is just insane. Seems people are getting 5 -5.5 hrs of screen on time with iphone 12 mini which is precisely what im getting in my s21+. Is it a joke .?
[Samsung Galaxy S21 Questions] joakimbo:
Ah I see.. Totalt understand that. I've also considered iPhone. I've heard the battery life on the 12 mini is really bad though, so kinda shocked you're saying it's better than the S21. I really hope Samsung can improve this in updates..
[Samsung Galaxy S21 Questions] mariomaxx:
Today using 120hz refresh rate I got 6:07 hours os SOT, with 12% battery left. Yesterday I got 6:45 with 25% left. Like I said, I'm guess I'm a little blind and don't see any difference between 120hz to 60hz, so I'm going back to 60hz.

Tomorrow I'm gonna change my 4g back to 5g to see what difference it makes in battery life.
[Samsung Galaxy S21 Questions] mohansethu:
Thats an awful battery life .You have used it for just 11 hrs. and you got 6hrs sot and that too whatspping for more than a hour.
[Samsung Galaxy S21 Questions] joakimbo:
I agree.. This is more or less the same as what I get. Bet I could get 6 hours SOT with that kind of usage as well.
[Samsung Galaxy S21 Questions] mohansethu:
Is this on s21 ultra? , iphone 12 users are getting 7 to 8 hrs for a 14 to 16 hrs day.or sometimes more than that. I dont think 120hz alone can explain the relatively poorer battery life.
[Samsung Galaxy S21 Questions] mohansethu:
Well im losing my mind over the battery life of s21+. I bought the + variant because of its battery size. If all i get is 5 - 5.5 hrs of sot with just browsing and video streaming for a period of 14 - 15 hrs usage, its truly awful. How come android chipset hasnt got better over the years. ?? I got 7hrs of sot over just 3g in sony xperia z2 back in 2014 for 24hrs usage. How come it has come to this? 5nm , mamoth batteries and power efficient oled and yet we have gone backwards.
[Samsung Galaxy S21 Questions] joakimbo:
I've got the base S21
[Samsung Galaxy S21 Questions] joakimbo:
True. Could be the SD888 and Exynos 2100 this year that's just poor an overheats. Or could Samsung that haven't optimized stuff enough.
[Samsung Galaxy S21 Questions] mohansethu:
Wow. Then its actually amazing battery life. I get no where near that and im using the plus variant. And im testing it over a month now . I got 6hrs sot precisely thrice. I dont use location. I dont game. I dont take pics most days. On wifi 80% of time. Yet im getting ****ty battery life. If i was this careful i would get 4.5 hrs sot even with op6 for an entire day. Waste of money. !!
[Samsung Galaxy S21 Questions] mohansethu:
Yeah. Mkbhd got about 5- 5.5 hrs sot with his op9pro. So its juts not exynos 2100. Its amazing how midrange chipsets like sd 700 series provides very similar experience with mundane tasks like browsing and video watching yet consumes lot less power doing so.
[Samsung Galaxy S21 Questions] gregi10:
Same problem with my 5 day old s21. I lost 40% battery in standby mode!!! I came to 40% with 1.30h SOT. This is absurde. I am giving back Samsung.
[Samsung Galaxy S21 Questions] mohansethu:
Here is my dog**** battery life. In that 24 hrs usage . I slept gor 6h 20 mins. Should i get the phone replaced ?
[Samsung Galaxy S21 Questions] joakimbo:
I think this is normal, unfortunately. Same as I get. People are shockingly accepting this battery life. Hopefully it will improve a bit after updates. When I got the phone, I was consistently getting over 6 hours SOT, so something happened through updates. It got worse, for sure..
[Samsung Galaxy S21 Questions] JCMate10:
Hi

If you look a little in Reddit groups or Facebook groups, people are in general happy about battery life, and get 5-7 hours SOT. For me it is really great, but if you want more, the standard 12 is better. Also, I have never experience this being hot - compared to my S21 that worked fine as a hard warmer in the cold days :ROFLMAO:
[Samsung Galaxy S21 Questions] blinkin:
March update just arrived. Any first impressions?
[Samsung Galaxy S21 Questions] joakimbo:
April you mean? Just flashed it couple of hours ago.
[Samsung Galaxy S21 Questions] russellcausier:
Is flashing and rooting still worth it in 21?could you point me in the right direction on how to get roms etc?been years since I've rooted
[Samsung Galaxy S21 Questions] AngelNine:
You mean April Update ?
[Samsung Galaxy S21 Questions] joakimbo:
I'm not rooted or using ROMs. Just flashed the OTA that I got. I don't think there's any point in flashing or rooting on a Samsung. You trip Samsung knox and won't be able to use samsung pay etc.
[Samsung Galaxy S21 Questions] mohansethu:
On april update , and it has gotten worser. What i could be possibly doing wrong ?
[Samsung Galaxy S21 Questions] blinkin:
Yesterday in 4g without volte I had better results than before, still not super great but I had 40% in the evening with 2h sot

I enabled volte and I think it's worse but I'll update in the evening
[Samsung Galaxy S21 Questions] blinkin:
Nope volte still sucks
[Samsung Galaxy S21 Questions] mohansethu:
What phone man ? On what battery percentage you were while taking screenshot?
[Samsung Galaxy S21 Questions] blinkin:
20% on S21
[Samsung Galaxy S21 Questions] mohansethu:
That sucks man!!
[Samsung Galaxy S21 Questions] phil_666:
Hello ,

Your opinion about battery since the last update ? i think the battery was better before the update.
[Samsung Galaxy S21 Questions] joakimbo:
I noticed no difference whatsoever with VoLTE on/off. I have it on all the time. This is what I got today. 50/50 WiFi and mobile data.
[Samsung Galaxy S21 Questions] russellcausier:
Best battery I've had on my s21 ultra exynos so far using galaxy hz mod too 23%left from 2.30pm Saturday aft 👌🏻 latest software
[Samsung Galaxy S21 Questions] blinkin:
What's Hz mod? Volte on?
[Samsung Galaxy S21 Questions] russellcausier:
Yeah I'm assuming vo above the lte1 is volte !?it's on these xda forums galaxy mod hz so ya refresh will swap from 120/96hz to 60/48 hz adaptive and a few great power saving tiles too great app
[Samsung Galaxy S21 Questions] joakimbo:
What toggles do you have active? I felt the power saver when screen off really draw more power than save power. Probably because I unlock my phone really often.
[Samsung Galaxy S21 Questions] russellcausier:
Yeah I had power saving hack on constantly so still got 120hz when on power saving turned that off for last 2 days and this is when I got the 24hr mark and 5hrs 50 sot 👍🏻also turned off sync
[Samsung Galaxy S21 Questions] joakimbo:
Didn't quite understand what you said there. What gave you best battery life? "Power saver when screen off" activated or not?
[Samsung Galaxy S21 Questions] russellcausier:
Only power saving option is through the galaxy mod hz no power saving in the phones general settings!are you using the galaxy hz mod?and power saving option?
[Samsung Galaxy S21 Questions] joakimbo:
Ah okay.. So you have all toggles in the app active, I see.. For my usage, the battery almost got worse with those toggles active. I guess its good if you don't unlock your phone that often, but if you keep interrupting power saving and doze all the time, it drains more battery.
[Samsung Galaxy S21 Questions] russellcausier:
Ah right do you keep power saving and doze off Then? what about force lowest hz when screen off 48hz?do you keep that on?
[Samsung Galaxy S21 Questions] joakimbo:
I'm running the force 48hz when screen off and forced high refresh rate to 120hz. Power saver activated at work. Sync only when charging.
[Samsung Galaxy S21 Questions] lawonga:
Just realized I have the Exynos version (for some reason I thought Canadians get the Snapdragon one, guess I was incorrect). This battery life is pretty garbage, thinking of returning it...
[Samsung Galaxy S21 Questions] wicked245:
Battery life was great for me last 3 days constantly over 6h sot. One day battery easily... S21 exynos.
[Samsung Galaxy S21 Questions] ivor987:
What software version?
[Samsung Galaxy S21 Questions] wicked245:
April patch

AUC8
[Samsung Galaxy S21 Questions] ivor987:
Nice stats bro, looking forward to updating. Still on AUBB in Croatia :(
[Samsung Galaxy S21 Questions] blinkin:
Cool. This was not the case before the patch? Did you have any issues with battery at all before?
[Samsung Galaxy S21 Questions] wicked245:
I had issues. I think this patch and debloating really helped...
[Samsung Galaxy S21 Questions] blinkin:
That's great. Any recommendations on how and what to debloat?
[Samsung Galaxy S21 Questions] wicked245:
I used adb app control. Extended version and than u can select in debloat wizard what cleaning level you want.
[Samsung Galaxy S21 Questions] blinkin:
Which cleaning level did you go for?
[Samsung Galaxy S21 Questions] wicked245:
Medium.

Dont worry if you delete something important. You can always restore it.
[Samsung Galaxy S21 Questions] blinkin:
Thanks for the tip. I've just uninstalled 55 apps recommended by the "medium" setting. Let's see if it helps.
[Samsung Galaxy S21 Questions] russellcausier:
Hi is this application paid?have you got a link please?
[Samsung Galaxy S21 Questions] mohansethu:
Oh man, i disabled the adaptive battery and auto optimization got better. Then i have wiped cache in recovery mode and it has gotten even better now.
[Samsung Galaxy S21 Questions] wicked245:
Its free. Paid one is just if you want to support developer as i did.

https://xdaforums.com/t/tool-adb-appcontrol-v1-6-2-app-manager-debloat-tool-for-android.4147837/
[Samsung Galaxy S21 Questions] russellcausier:
Thank you will have a look 👍🏻
[Samsung Galaxy S21 Questions] blinkin:
Only the extended version is paid which includes the debloat wizard. Google "XDA ADB app control"
[Samsung Galaxy S21 Questions] joakimbo:
Let us know if it helps.

What I've noticed the most after a couple of months use. The 4G/5G modem on this phone drains a lot of battery. Things have gotten better, but phone is hotter and battery zips fast when on mobile data. Worse than my previous phones.
[Samsung Galaxy S21 Questions] blinkin:
I didn't notice any major changes 😞 with 4g without volte most of the day on WiFi it's max 4h sot.

I think I wouldn't be complaining with 4h sot if that would be with volte...
[Samsung Galaxy S21 Questions] joakimbo:
I think you're the only person who has this problem with VoLTE. Never heard anyone complaining about this. Tried disabling it one day, but didn't experience any better battery life.
[Samsung Galaxy S21 Questions] blinkin:
I'm pretty sure some people here had similar issue with volte...

I guess calling my provider for help won't fix anything? Volte was working fine with my p30 pro...
[Samsung Galaxy S21 Questions] blinkin:
After reset it looks more promising. It's 1h sot with 77% left (5g and AOD enabled). I'll keep you updated.
[Samsung Galaxy S21 Questions] Hurricane Andrew:
I've been thrilled with the battery life on my S21+ so far. On my Note 9 I would have to charge it at least once a day, but now, with even heavier usage on the new device as I'm playing with it and getting things setup, I still have 60% or so on average charge left in the evenings. I'm thrilled, because that was 1 of the 2 main reasons I choose this particular model: battery and screen size.
[Samsung Galaxy S21 Questions] mt2020:
Trying not to ask a stupid question, but instead of adb, why wouldn't going into battery settings and tell the apps you don't use to go into deep sleep? If you never open them don't they stop background services?
[Samsung Galaxy S21 Questions] Soundchasr:
Samsung rep.
[Samsung Galaxy S21 Questions] SpiritBreak3r:
They will respond with what you want to hear, it's their job.
[Samsung Galaxy S21 Questions] cheetah2k:
Usually any updates to fix battery means more CPU throttling.. lol
[Samsung Galaxy S21 Questions] blackhawk:
In theory it sounds good... on my 10+ using any power management except main display/cpu one would not only cause erratic shutdowns but drive up battery usage within a few days or so.

Presumably by creating conflicts and constant polling in the background.

It was a hot running hog until I toned it down.

No one easily solution but not enabling power management was one of the first steps.

Let Android manage the power not 3rd party apks (including Samsung's).

Today it's a fast, very stable, cool running platform, but it took a lot of doing to it get there.

Without the permissions for 3rd party apps/tools found in Pie it would have been much harder to do.

Hard to say how the new OS and firmware will run but keep an open mind to possible power drain causes and solutions based on observation.

Don't expect miracle fixes or much of anything useful on the internet for this new phone.

Play with it... find/correct the root causes.
[Samsung Galaxy S21 Questions] Soundchasr:
But it made me feel like they really cared. :)
[Samsung Galaxy S21 Questions] blackhawk:
Talk walks, action talks.

Samsung has some of the worst customer service on the planet.

Try escalating a case or contacting an engineer.

They excel in stonewalling; much worse than Toshiba, Sony... and Sony is rotten to the core.

Even AT&T's advanced tech support is far better.

Took Samsung 1.5 years to fix the Buds firmware so don't hold your breath.
[Samsung Galaxy S21 Questions] Soundchasr:
Always On seems to use a lot of battery. 3rd highest for me.
[Samsung Galaxy S21 Questions] blackhawk:
AOD should use .6-1% @hr with auto brightness enabled.

More than likey Google or Samsung system apks are running in the background.

These are going to be tough to find on 10 or higher... thanks for nothing Google.

Closing all apks before turning off for the night may help a bit.
[Samsung Galaxy S21 Questions] RobinJ1995:
Has anyone noticed their device getting noticeably warm to the touch (only the upper part, too) while browing or taking pictures? (Exynos S21+ here)
[Samsung Galaxy S21 Questions] browngeek:
Wow that was quick. That's my second update since I got the phone!
[Samsung Galaxy S21 Questions] Soundchasr:
Wonder if Verizon phones will take longer (like they always do.....).
[Samsung Galaxy S21 Questions] matty100147:
I've had my s21 ultra 2 days and the battery life is terrible, Facebook services is draining over 10% battery a day, any ideas how to disable Facebook services? On every phone I've had I've just went to settings and apps and show system apps and disabled Facebook services but Samsung seems to have disabled being able to see all system apps
[Samsung Galaxy S21 Questions] blinkin:
Battery looks promising now. After today's update I noticed slight improvement.

Add it as deep sleeping app?
[Samsung Galaxy S21 Questions] goudidi:
I downloaded the Package Disabler app which is chargeable. But I managed to remove Facebook Services. It consumed a lot of energy.
[Samsung Galaxy S21 Questions] vickersg:
Amazed that all you allegedly tech-savvy guys are worrying about battery life with a phone that's less than a month old. The AI has to learn your usage pattern before battery management can kick in that takes about two weeks and the battery will not reach its full capacity for about a month that's why AccuBattery reports it wrong. Then some of you are doing resets or worse so the AI has to start learning again. Sad
[Samsung Galaxy S21 Questions] blinkin:
You think AI does some magic? 😁
[Samsung Galaxy S21 Questions] vickersg:
Not just think I know. Sorry I do not have a childish mem to send
[Samsung Galaxy S21 Questions] mohansethu:
After spending nearly my entire month's paycheck i was so much disappointed about the battery life of s21+ . It was a nightmare. It defied common sense as it was literally 50% more battery from my previous device (op6) and somehow had worser battery life. Finally after two months im getting good battery life , in line with my expectations. If you are getting poor battery life, consider clearing system cache in recovery mode and turn off adaptive battery.
[Samsung Galaxy S21 Questions] blinkin:
After over 2 months with this phone I'm replacing it for a pixel 5. Just released dxomark review confirms my impressions about the pictures and video capabilities - i wanted an upgrade from P30 pro but it's not the case. I tried a lot improving my battery but still it's never over 4h. If I enable volte it drops to 3h.
[Samsung Galaxy S21 Questions] ivor987:
Totally agree with you. I've had this phone for over 3 months and no trick or update software from Samsung has improved anything. Never over 4 SOT. Just sad and bad...
[Samsung Galaxy S21 Questions] blinkin:
First day with pixel 5 and I'm amazed. It's much more fluent than s21, camera and videos are great, all the day with 5g volte and battery is great so far.
[Samsung Galaxy S21 Questions] lawonga:
So I let it drain to almost 0 today, and I realize this battery is not a linear one! I was listening to music, using the phone quite a bit and doing my general things both on 5g and wifi.

If I drain it around half and calculate it I would get about 4 hours. However when I actually drain it it seems like I'm getting 6!
[Samsung Galaxy S21 Questions] wicked245:
Mine from yesterday. It could be better with 60hz. Ah well you cant have it all...
[Samsung Galaxy S21 Questions] lawonga:
Ended the day like this.

I thought the battery was disappointing at first but this isn't so bad...
[Samsung Galaxy S21 Questions] wicked245:
Considering its 120hz with only 4000 mah it is not bad at all...
[Samsung Galaxy S21 Questions] xAirZonex:
Hello,

Is the exynos version of the S21 base model that bad?

I can get the phone for about 590 usd but the abysmal battery makes me wonder if I should get the 20 fe instead or wait for s21 fe.
[Samsung Galaxy S21 Questions] Ollie2:
On my S21 Exynos I'm finding the battery life fairly good.

It's mostly on wifi but 4G and Volte is on I get about 5.5 to 6.5 SOT with 120hz and normal mode (not power saving).

If left alone the the standby time is good, dropping about 0.4% per hour.

The one thing I have noticed that seems to kill the battery is using the camera, this looks to use about 30% an hour, fine if you're capturing an odd snap but it mounts up if you try and use it a lot.

It even uses a lot of power just with the camera app open and the viewfinder showing waiting to take a picture.
[Samsung Galaxy S21 Questions] syrinx75:
The best way to in improve the consumption is to select the dark mode.
[Samsung Galaxy S21 Questions] ermacwins:
Can we force 60hz?
[Samsung Galaxy S21 Questions] syrinx75:
Yes in the screen settings.
[Samsung Galaxy S21 Questions] Ollie2:
Assuming at least some of the apps you use utilize the dark theme then this does make a noticeable difference.
[Samsung Galaxy S21 Questions] mohansethu:
I got the iphone 12, day before yeaterday. The battery life is nothing short of a magic. I manually counted screen on time after the 100% charge. It was 3hrs 22 mins with 70% battery left. Thats insane.!!!!!I have the same apps use case what i use in s21+. I cant find words to explains this. If it had been my s21+ i would have lost 50% battery . And the look at the standby ..its over 13hrs of standby . Its amazing. Reviewers dont do a good job of mentioning the battery life differences. I love android ..the freedom and everything but this alone is a deal breaker for lot of us. The android chipsets i think are severely lagging behind in both power and efficiency.
[Samsung Galaxy S21 Questions] subhani:
I've come from three to four years of using some Chinese devices, including Huawei, Xiaomi and Realme, which use the same flagship Snapdragon chips as the main Android OEMs (bar Huawei) do and the battery life is remarkably good on those. So coming to the S21, the battery life certainly feels average and this is compounded by the fact that charging is very slow. I guess I got spoiled by Realme's 28m 0-100 charge times.

So far, I love the design and the feel in hand of this device. Brand recognition too, if there's such a vain thing. But there's a lot of love hate confusion I'm getting with it. I got tired of buying Nexus and Pixel and Sony devices and tried the Chinese offerings, and I must say I was pleasantly impressed. Good to be back with this very attractive little powerhouse. Wish the software was not so taxing on the battery.
[Samsung Galaxy S21 Questions] blackhawk:
Actually the OP screwed up. The Note 10+ is one on the best phones Samsung has released in years. A big plus is it's running on Pie... or should be.

I get good battery life on my Note 10+ after optimizing it, which was really fun, not🤣

Samsung's are the most customizable stock phones out there. Like optimizing them it takes time and effort. Once done it's good to go🥰
[Samsung Galaxy S21 Questions] wasz12345:
Hi, I have the galaxy S21 256gb exynos version, im getting very bad battery performance..

How do you guys get like 5 hours sot?

Only 4 hours sot and went to 2%..

It drain so fast..

Also, I almost can't charge with slow charger, when trying to charge with regular charger i got from 1 hour of charging only 7%
[Samsung Galaxy S21 Questions] subhani:
4 hours over 2 days? Or over what period of time?
[Samsung Galaxy S21 Questions] wasz12345:
Yes in like day + standby night
[Samsung Galaxy S21 Questions] blackhawk:
If AOD is set to tap on (or turned off) and nothing is running in the background (as it should be if optimized) usage at night will be about 2-3%.

If AOD is always on, about 0.7-1%@ hour.
[Samsung Galaxy S21 Questions] blackhawk:
WhatsApp and Instagram are sucking battery as well as privacy.

Google Play Services is a habitual offender as well; I keep it disabled unless I need it.

Playstore*, Google Backup Transport and Google Framework are package blocked or disabled.

With all that junk running that battery may be in good condition🤣

*unless needed
[Samsung Galaxy S21 Questions] subhani:
This isn't like it's faulty. That's the kind of battery life expected on small powerful phones. It could certainly be better. Small iPhones have the same problem. The Pixel 5 is the exception due to a mid range power friendly 7 series chip.
[Samsung Galaxy S21 Questions] blackhawk:
On faster, more powerful platforms poorly designed apps can abuse that speed and it can rapidly add up as excessive battery consumption. You won't notice a slow down most times but the phone will run warm as it runs the extra cpu cycles.

Good if you need a hand warmer otherwise not.
[Samsung Galaxy S21 Questions] lawonga:
Got the may update. I think they fixed battery life, it seems to be about 20% better than previously.

They also fixed my camera lag too. Yay!

Exynos here.
[Samsung Galaxy S21 Questions] obamaforever:
Is it only possible to download the modules tht is in magisk or can I install modules that I find outside magisk too?

Is there any good battery saving module?
[Samsung Galaxy S21 Questions] davedes:
smart launcher draining.
[Samsung Galaxy S21 Questions] obamaforever:
Wow. Good.

I have debloated my phone heavily and still have 4 % battery drain on idle every hour even with mobile data turned off. How can I get 2 % every hour? What have you done?

AOD is off of course.

What can I do to improve it?
[Samsung Galaxy S21 Questions] obamaforever:
How do you guys get less than 1 % per hour on idle? I havet about 5 % every hour and it is heavily debloated. A lot of bloatware is uninstalled.

Can someone explain this?

SOT and standby are equal but I have not used The phone as long as it says.

Why?