Database Develop

Why does my battery drain so quickly? (Details Inside)

I have always seen threads here of people getting so much better battery life then what I am getting.
I am down to 80% after 1 hour and 14 minutes after unplugging from the charger.
Here is my configuration:
Cyanogen 5.0.6
Pershoot's Kernel 2.6.33.3 (OC/UV to 1.113GHZ)
On 3G with 5 bars
SetCPU (Ondemand)-
Sleep/Standby: 384 Max, 245 Min
Power < 100%: 1113 Max, 245 Min
Display: 28%, 44 Minutes Time On
Live Wallpaper: Nexus
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Usage:
-Listened to 1 song via the Music App
-Voice Calls: 5 Minutes and 26 Seconds
-Used Maps to get directions for my sister (Did not use GPS)
-Read a couple of articles on Newsroom
-Viewed news feed on Facebook
-Posted 2 status updates on Facebook
-Viewed recent Twitter tweets
I don't know why Skyfire is in the list since I did not use it at all, nor was it running in the background.
Widgets:
-Pure Calendar
-Facebook
-FML
-Beautiful Widgets
-Smooth Calendar
-Pandora
-Music
-DriveSafe
That's about it. If you have any other questions please let me know.

Just a shot in the dark, but you have a lot of widgets running, and your over clocked, as well as having a live background, my guess is its draining as it should be!

My 2 cents: I just lost 30% in 2 days with my setup... try it out.
Switch to intersectRaven's 33.4 Kernel (the 925mV Version, Latest Release)
Download Task Manager (i use the regular one with the little green android)
Setup Task Manager to ignore only 2 or 3 important apps (like the clock if you use an alarm) Also, set it up to kill all tasks 5 mins after screen goes black.
That should increase your battery life quite a bit.

jn_vista said:
Just a shot in the dark, but you have a lot of widgets running, and your over clocked, as well as having a live background, my guess is its draining as it should be!
Click to expand...
Click to collapse
Well the kernel is undervolted so having it overlocked supposedly doesn't decrease battery life. As far as the widgets and live wallpaper go, I thought they don't use that much battery?.
mrandroid said:
My 2 cents: I just lost 30% in 2 days with my setup... try it out.
Switch to intersectRaven's 33.4 Kernel (the 925mV Version, Latest Release)
Download Task Manager (i use the regular one with the little green android)
Setup Task Manager to ignore only 2 or 3 important apps (like the clock if you use an alarm) Also, set it up to kill all tasks 5 mins after screen goes black.
That should increase your battery life quite a bit.
Click to expand...
Click to collapse
I've been meaning to try a new Kernel. Thanks for the info, I will try intersectRaven's and see how it goes. By the way, you lost 30% in 2 days is crazy! What type of usage have you put it through?

Am I the only one who thinks it's a heavy use and the drain is perfectly normal? I can bet that during those 1.25 hours the phone rested maybe several minutes - only the drain from reading a couple of articles would cover 10%...

Jack_R1 said:
Am I the only one who thinks it's a heavy use and the drain is perfectly normal? I can bet that during those 1.25 hours the phone rested maybe several minutes - only the drain from reading a couple of articles would cover 10%...
Click to expand...
Click to collapse
Nope! I can drain a quarter of my battery, at home, while using 3G, just browsing the internet, in about that time...

Jack_R1 said:
Am I the only one who thinks it's a heavy use and the drain is perfectly normal? I can bet that during those 1.25 hours the phone rested maybe several minutes - only the drain from reading a couple of articles would cover 10%...
Click to expand...
Click to collapse
Well I never thought of it that way. The articles weren't that long (3-6 paragraphs) but then again I am not sure how much drain NewsRoom has when it fetches them.

Vandam500 said:
Well I never thought of it that way. The articles weren't that long (3-6 paragraphs) but then again I am not sure how much drain NewsRoom has when it fetches them.
Click to expand...
Click to collapse
Not sure about fetching, probably not much. But screen being on (and probably with white background and non-minimal brightness) for the time of reading drains a lot.

I finally rooted last night and flashed cyanogen latest ROM and now suddenly have the same poor battery life. I used stock for 3 months and this is an enormous difference than stock. I'm at 59 minutes and down to 76 % already. I have no apps installed or any widgets since I only just flashed. Stock cyanogen. So why is cyanogen So power hungry?

Pure calendar.
I totally respect the programmer and love his apps. But everytime batery has been an issue removing the widget has usually been tied to better battery life. Placebo ?..maybe..
I got terrible life with Cyn 6.05
Helix is supposedly a battery raper. That + Pure would suck Batt life like mad for me.
Both 5.05 and Froyo give me much better results.

xManMythLegend said:
Pure calendar.
I totally respect the programmer and love his apps. But everytime batery has been an issue removing the widget has usually been tied to better battery life. Placebo ?..maybe..
I got terrible life with Cyn 6.05
Helix is supposedly a battery raper. That + Pure would suck Batt life like mad for me.
Both 5.05 and Froyo give me much better results.
Click to expand...
Click to collapse
Hmm I just added it to one of my homescreens. I will see if the battery changes cause I have been getting a lot better battery life with Froyo

RogerPodacter said:
I finally rooted last night and flashed cyanogen latest ROM and now suddenly have the same poor battery life. I used stock for 3 months and this is an enormous difference than stock. I'm at 59 minutes and down to 76 % already. I have no apps installed or any widgets since I only just flashed. Stock cyanogen. So why is cyanogen So power hungry?
Click to expand...
Click to collapse
Yeah it definitely is Cyanogen. Since I flashed Froyo, my battery life has doubled in comparison to CM 5.0.6 (I hear that 5.0.7 is even worse).

Vandam500 said:
Yeah it definitely is Cyanogen. Since I flashed Froyo, my battery life has doubled in comparison to CM 5.0.6 (I hear that 5.0.7 is even worse).
Click to expand...
Click to collapse
Ive been wondering the same thing and considering installing his "perks" seperately.
I do wonder if its Helix. More than a few times Ive heard people claim piss poor battery life.

xManMythLegend said:
Ive been wondering the same thing and considering installing his "perks" seperately.
I do wonder if its Helix. More than a few times Ive heard people claim piss poor battery life.
Click to expand...
Click to collapse
I had terrible problems on CM 5.05 and 5.06. I tried what I thought was everything: setcpu, taskmanagers, every kernel known to xda. Nothing helped.
And then, one day, when I had stopped trying, I noticed I was getting good battery life again. What changed? My main suspects are replacement launchers, such as Helixlauncher etc., wifi turned on when no wifi is available -- this was big one!
And apps trying to update all the time.

Your screen was on for 44 minutes out of 74 minutes? I'm going to label that a big fat duh.

juice defender works great doubled my batterylife

I am a battery cheapstake and get pretty good battery about a day and change, with one hour on the phone and some google searching/mapping and surfing and a game or two, if you do the following:
Keep screen at minimal. You can increase it on command from the command widget if you really it, like when outdoors in bright sunlight. It takes 1 second to change and it can save you tons of battery during the course of the day.
Same goes with keep the battery to turn off after 15-30 seconds. Again, over the course of the day it adds up.
Remove live-wall papers, they are nothing but a drain. I am an photographer enthusiast so I use my own photography, a dark shot to save on battery as well. Plus it is nice to show your own stuff than someone elses.
Use no polling widgets, unless you need to. I only have 4 widgets and none pull down anything from the net at anytime. If I need twitter, it takes 2 seconds to open the app.
One of the widgets I DO have is the 2G/3G switch. When the Nexus is in my pocket, I do not need it to download/upload/sync with anything at lighting speeds. So if anything gets updated, it will be slower but I do not care. If I need the phone, I switch the puppy to 3G and fly. Savings are HUGE and guarantees my phone will have juice when I NEED it, and not use up while on standby.
I read that having task killers is a waste of time on Android. Since it is not a Windows device, ram and apps are not handled the same way. I used to kill everything on site on my old Tytn so I thought it natural. However, I read that Android is fairly good at memory managment. So for now, what I do is back out, out of all my apps --unless they have an 'exit' option. I am currently experimenting with that, after using a number of task killers from the market I think I have a fair idea of what I should and should not expect. I will let you know.
If you really want to make a difference, uncheck 'background sync' on settings under the sync option. If I need to check my email, I can again, pull it down fast. I know a few people who want to have everything push, however, unless you are that popular that you get emails\twitter & facebook notifications every 2-minutes or because of work then it is not really needed.
It is a bit of a trade-off, but you can't expect to have a running a 1Mhz chipped, huge screened, live wall-papered, widget-polling that is always connected to the internet device and expect it to to last you more than a day with an -in my opinion, fairly small- sub 1500mAh battery. If you had, say
<3000mAh, ahhh..., then that would be something.

Feels a bit cramped but i like the swipe to the media section. Either way great to have options good luck with getting it to work fully.

5.0.7 worked wonders for me batterywise.. better than stock AND slightly better than Froyo.
Is weird that some phone works better than other phones with the same ROM...funny..
I would revert back to Cyanogen if the wifi could stay constantly on. Thats the only thing stopping me.

Android os eating 80pc battery after KL7 update

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I feel my battery life has come dowb after kl7 update..check scrrenshot
Sent from my GT-N7000 using XDA App

I am not seeing exact issue how much android OS usng,
looking to your screenshot, display is just 6%, means hardly you have utilised your device. it was mostly in screenoff state. Ok when you dont use your device, but OS is running in background so just OS but nothing else have drain it.
Now another thing looking to image i can say in 9hr your battery dropped 50%
it means > 5% / hr, that actually i count the measure.
In idle state it shud be 2-3 % with 3G n Data sync On. So here it is more.
anyway once let it drain completely then recharge it fully n count drain %/hr.
I am using few stuff, e.g
Autostart - just kill the app you dont using
Phoneweaver - It autometically controls my data connection e.g. just after 15min to my sleeping time, it gets turnoff my data, n swithon b4 few min i wakeup.
SetCPU - I set profile to use CPU <500 in screenoff state.

My batt seems to last longer on kl7.

Your is idle. it seem 3%/hr even using screen quite good time.

My sisters Note had same crazy issue with Android OS eating battery. Tried many things to find the culprit but only thing that fixed it was full wipe and reinstall ROM. No issues now.
Sent from my GT-N7000

il calibrate battery and see hwz it working

I have a very long time use with this firmware and very happy with the update.
I just disabled all automatic synch and the samsung apps notification and things like this.
3g is always enabled and some hours a day wifi is also enabled

Don't know if it will work for you but I had the same problem. Believe it or not a simple hard reboot, solved the issue. Was identical to mine using Android OS over 70% while screen was at 15%. Programs added and deleted were still running around in the OS until that reboot(I'm guessing). Let me know if that works.

seems better. i did a complete battery drain and recharged from 0 battery. now after 5 hours after complete recharge, im at 84%. 2 push emails..full time wifi connectivity, facebook/twitter/socialhub sync always on. 5 min phone call. and thats it.i think its better.

For those who do not realize it yet, having Facebook, Twitter, Gmail, etc syncing every minute takes a lot of power. You cannot expect the phone to be doing this for 12 hours straight.
If you have a lot of battery ussage with screen off, try to disable account synchronization and see what happens then.
You need to evaluate if you need to see every social network update on the instant, or you carry extra batteries with you, or you are able to find a place to charge every few hours.
What you cannot expect are miracles.

vcespon said:
For those who do not realize it yet, having Facebook, Twitter, Gmail, etc syncing every minute takes a lot of power. You cannot expect the phone to be doing this for 12 hours straight.
If you have a lot of battery ussage with screen off, try to disable account synchronization and see what happens then.
You need to evaluate if you need to see every social network update on the instant, or you carry extra batteries with you, or you are able to find a place to charge every few hours.
What you cannot expect are miracles.
Click to expand...
Click to collapse
Will disable sync on background make apps like whatsapp make you miss receiving a message?

Anonymous Vagrant said:
Will disable sync on background make apps like whatsapp make you miss receiving a message?
Click to expand...
Click to collapse
no, you will still receive messages and everything is working fine

Hang on.i have all sync enabled...wifi always on .stil look at my battery life..its decent
Sent from my GT-N7000 using XDA App

Hmm, something has definitely changed for me.
Up until recently I was getting two days use out of a charge with wifi, gps & 3g enabled syncing 2 gmail, 1 yahoo account plus twitter and google reader stuff. Last couple of days Android OS has gone nuts and I'm getting similar readings in terms of usage to those quoted in this thread. This morning I've drained 20% in an hour with a bit of internet use.
Only thing I have changed is updating a few apps and I've put the thing in one of those silicon protection cases but that can't be the reason(can it??!!).

khan.dharvesh said:
Hang on.i have all sync enabled...wifi always on .stil look at my battery life..its decent
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
Cos you are using wifi all the way,
3G will eat up more battery

Poor battery performance, what to do?

Hey guys, I'm wondering what can I do to improve my Note 8 battery life. Seems to me that is draining and I do not get the chance to use it too much. Maybe you have an idea how to optimize and track the apps are overusing the battery, so far I was not able to detect which app/component drains my battery. Even Samsung seems that doesn't know since there is no message regarding background processes with heavy usage.
Basically I finished fully charging at 9:15 AM and now 16:15PM time I started to write the post and make the screenshots, it has 16%. What I did all this time with the phone, was:
- a bit of browsing,
- make one NFC payment,
- have the S3 gear connected on bluetooth.
- few twitter messages and viber really small usage. (less than 40 messages overall)
So here are my settings
- WIFI is off and I'm using 3G connection (I stopped LTE thinking that requires more battery.. , correct me if I'm wrong please),
- screen not even on 50% and auto brightness off (using HD+ and a dark theme, everything is so dark!)
- AOD
- no led, no gestures (most of them I turn off for testing purpose)
- Medium battery saver on.
- No phone calls
- few notifications (not more than 20, also the notification is optimized to apps I'm concerned)
Any suggestion how to make it to end of working day .. at least?
I was waiting so long for a new note and now I'm a bit disappointed and I hope that is something I do wrong..
Funny is I just realized that by mistake I put the phone on airplane mode while making the screenshots, still percentage was flying away even like this. I lost 2% making screenshots in a matter of couple of minutes.
Please find the screenshots attached in the link down bellow, were to big to add them to the post.
https://drive.google.com/drive/folders/0B7hYWRFdyQqPOFp3alVYNUxJUW8?usp=sharing
Thanks!

you might have some apps draining battery. I'm used to a rooted phone, so I'd always check with wakelock detector, but I'm not sure what you can do without installing an app as a system app.
Try factory resetting your phone and using it without installing anything for a day and see what the battery life is like. If it's significantly better, install your apps 1 by 1 until you find out which one is causing unnecessary cpu cycles or wakelocks.

Quiksmage said:
you might have some apps draining battery. I'm used to a rooted phone, so I'd always check with wakelock detector, but I'm not sure what you can do without installing an app as a system app.
Try factory resetting your phone and using it without installing anything for a day and see what the battery life is like. If it's significantly better, install your apps 1 by 1 until you find out which one is causing unnecessary cpu cycles or wakelocks.
Click to expand...
Click to collapse
But I wonder, I shouldn't see the heavy usage on the battery info page? Like which app does most of the usage and time spend in the background or CPU?

I had excessive battery drain, about 10-11% an hour with every off . A full factory reset cured the problem.

What's your screen on time usage? 5-6 is probably the normal amount you would get with most phones (This is the most important thing if nothings draining the battery). And yes, it seems you might need a factory reset.

Raklik said:
But I wonder, I shouldn't see the heavy usage on the battery info page? Like which app does most of the usage and time spend in the background or CPU?
Click to expand...
Click to collapse
You won't always see this as it could be a byproduct causing a kernel wakelock.
Either way, something is acting incorrectly. The only way to really figure it out is to start over and try things slowly till you find out what it is.
For instance, on my nvidia shield tablet k-1, I was getting horrendous battery life on every single rom, stock or AOSP/Lineage. I found that I was getting 30% wakelock killing ~20% battery life per day when it should be sub 5%. I found that wifi was causing these kernel wakelocks and setting wifi to be disabled with the screen off unless charging fixed the issue entirely.
Now, that anecdote likely has nothing to do with what you're experiencing, but note that you can usually find out what's wrong from trial and error.

I've had my note 8 for 6 days now, and battery life is excellent, i mean i have wi-fi and 4g lte on all the time, bluetooth on all the time, sync with 3 emails, Facebook, weather widget, weather screen refresh every 30mins, location high accuracy, edge lighting, aod schedule 7pm-7am, was 100% at 6am, played games on it lots, used the phone 2x, 1 hour call and a 30 mins call, text messages, it's 130pm and I'm at 55%, try a factory reset then log in to your gmail then just try to update the phone if there is any. Then reboot then start installing your apps. If it doesn't work call carrier customer service and complain about the battery not holding up like some people you know who has note 8. They might replace it with a new one.
Sent from my SM-N950U using XDA-Developers Legacy app

herandy said:
What's your screen on time usage? 5-6 is probably the normal amount you would get with most phones (This is the most important thing if nothings draining the battery). And yes, it seems you might need a factory reset.
Click to expand...
Click to collapse
Phone died 15-20 minutes after I did the screenshots, so a bit more than 2 hours...
So.. yeah.. I will try a factory reset and start install all the apps bit by bit and see which one causes the troubles.. hopefully is nothing more than that.

Did you restore a backup or did you load your apps fresh from the play store?
I've had horrible luck with issues like battery life restoring from backups. I always install apps fresh.

douger1957 said:
Did you restore a backup or did you load your apps fresh from the play store?
I've had horrible luck with issues like battery life restoring from backups. I always install apps fresh.
Click to expand...
Click to collapse
I did a google restore from backup! Damn! And I was thinking that I should maybe to a clean, one by one app install.

My battery life is also not great but im using full resolution and when i remember time when i got S6 edge on launch....the battery was horrible but after few updates it was perfect so stay strong and wait a bit

jirka607 said:
My battery life is also not great but im using full resolution and when i remember time when i got S6 edge on launch....the battery was horrible but after few updates it was perfect so stay strong and wait a bit
Click to expand...
Click to collapse
can you translate "not great" in hours? :laugh: Because I will say that mine is second after horrible.. with update done.
I will start the reset in a short while and I will test it tomorrow with minimum apps installed.. those which I really must have in a working day..

Maximum 5 hrs on wifi normally about 3-4 battery is not great on note yet....some optimalization would be nice

I use Ampere to monitor the instan drain of current. In a quiet situation (screen on, internet or tapatalk browsing, gear connected, wifi and data turned on) you should have something 200 mA drain.
Inviato dal mio SM-N950F utilizzando Tapatalk

Maybe some of the settings changes you're making are somehow rendering your phone less efficient.
I have the USA unlocked version and use it as it came without changing to a dark theme or turning anything off and the battery life is much better than yours.

douger1957 said:
Did you restore a backup or did you load your apps fresh from the play store?
I've had horrible luck with issues like battery life restoring from backups. I always install apps fresh.
Click to expand...
Click to collapse
I restored from a helium backup. My battery life wasn't good for about a week but it did last all day down to 20-30% at the end of the day. After a week it has improved maybe due to apps updating. Now I'm at 70-80% at the end of the day with moderate use. I have disabled several apps I didn't need as well.

Seems like it's hit or miss with the battery life. I see a lot of people happy and some are having problems. Hopefully Samsung might push a update to help.

Get cpu spy and verify that your devoce is going into deep sleep when off(mine wasnt at first until i froze/removed some rouge apps). Install accubattery and do a benchmark and see how your battery does. At least do 6 discharge cycles first to see an average. Also, in device maintenance, you can make all apps doze when not being used now.. this is a new feature. Add all of your apps and they get put to sleep immediately. I get 8 hours SOT this way
Sent from my SM-N950U using Tapatalk
---------- Post added at 09:11 PM ---------- Previous post was at 09:09 PM ----------
Raklik said:
Hey guys, I'm wondering what can I do to improve my Note 8 battery life. Seems to me that is draining and I do not get the chance to use it too much. Maybe you have an idea how to optimize and track the apps are overusing the battery, so far I was not able to detect which app/component drains my battery. Even Samsung seems that doesn't know since there is no message regarding background processes with heavy usage.
Basically I finished fully charging at 9:15 AM and now 16:15PM time I started to write the post and make the screenshots, it has 16%. What I did all this time with the phone, was:
- a bit of browsing,
- make one NFC payment,
- have the S3 gear connected on bluetooth.
- few twitter messages and viber really small usage. (less than 40 messages overall)
So here are my settings
- WIFI is off and I'm using 3G connection (I stopped LTE thinking that requires more battery.. , correct me if I'm wrong please),
- screen not even on 50% and auto brightness off (using HD+ and a dark theme, everything is so dark!)
- AOD
- no led, no gestures (most of them I turn off for testing purpose)
- Medium battery saver on.
- No phone calls
- few notifications (not more than 20, also the notification is optimized to apps I'm concerned)
Any suggestion how to make it to end of working day .. at least?
I was waiting so long for a new note and now I'm a bit disappointed and I hope that is something I do wrong..
Funny is I just realized that by mistake I put the phone on airplane mode while making the screenshots, still percentage was flying away even like this. I lost 2% making screenshots in a matter of couple of minutes.
Please find the screenshots attached in the link down bellow, were to big to add them to the post.
https://drive.google.com/drive/folders/0B7hYWRFdyQqPOFp3alVYNUxJUW8?usp=sharing
Thanks!
Click to expand...
Click to collapse
You dont have to use med battery saver either, just read my reply on this thread and you will be good. You may have to experiment a little to get your device to go into deep sleep when screen off. Mine didnt at first. Its on my other comment
Sent from my SM-N950U using Tapatalk

I got back from work and my phone was at 75% that's between 9:30am and 6:30 pm. So my battery life is pretty good. I lose about 5% overnight.

I average 7hrs screen time Got 8hrs yesterday
Sent from my SM-G955U using Tapatalk
---------- Post added at 12:53 AM ---------- Previous post was at 12:50 AM ----------
Here ya go
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Question What is your battery voltage and percent-charge?

Can y'all please dial *#0228# in your dialer apps and tell me what the voltage is and what the corresponding battery percent is?
I'm trying to also see what it is at 100%.
Thanks, just checking something.
I'm at 3.74V @ 26%.

4.13
80%

varcor said:
4.13
80%
Click to expand...
Click to collapse
Thanks. Please let me know your voltage if you charge to 100%.

It will vary at 100% ... or is it really 80%?
All I know for sure is it stops drawing current/increasing in voltage after reaching an indicated 100% no matter what you do.

nixnixnixnix4 said:
Can y'all please dial *#0228# in your dialer apps and tell me what the voltage is and what the corresponding battery percent is?
I'm trying to also see what it is at 100%.
Thanks, just checking something.
I'm at 3.74V @ 26%.
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Click to collapse
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4.366 V at 100%

blackhawk said:
It will vary at 100% ... or is it really 80%?
All I know for sure is it stops drawing current/increasing in voltage after reaching an indicated 100% no matter what you do.
Click to expand...
Click to collapse
The cell is rated for 4.45V as the cutoff, but it stops at 4.35V, which is good: https://guide-images.cdn.ifixit.com/igi/m4vrgZ3PqskbyvKM.huge
And: https://forum.xda-developers.com/t/...-batteries-in-the-s-and-other-series.4284787/

nixnixnixnix4 said:
The cell is rated for 4.45V as the cutoff, but it stops at 4.35V, which is good: https://guide-images.cdn.ifixit.com/igi/m4vrgZ3PqskbyvKM.huge
And: https://forum.xda-developers.com/t/...-batteries-in-the-s-and-other-series.4284787/
Click to expand...
Click to collapse
The only things I mostly look at are SOT battery usage % and temperature when charging.
It rare I charge past 80-90%, just not needed.

blackhawk said:
The only things I mostly look at are SOT battery usage % and temperature when charging.
It rare I charge past 80-90%, just not needed.
Click to expand...
Click to collapse
My S21 Ultra reliably loses 1% an hour without significant intervention on my part and with very light phone usage. I'd say that this is the standby battery loss rate. I'm fine with that. Is that a normal experience?

nixnixnixnix4 said:
My S21 Ultra reliably loses 1% an hour without significant intervention on my part and with very light phone usage. I'd say that this is the standby battery loss rate. I'm fine with that. Is that a normal experience?
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Sounds like there's background activity going on.
Google backup Transport and Framework maybe. I have those two always package disable and Google play Services is turn off. Google Play Services is a vampire and not often needed by me except mostly for Gmail.
Playstore is also package disabled unless needed. Location is always off unless needed.
I like to see under 1%, think I'm getting about .5% with the tap on AOD setting. It still gets texts and phone calls; not in airplane mode. Wifi is always disabled, I don't use it and bluetooth is turned off at night which is mostly for security.
I have about 86 apks always disabled, most are bloatware anyway.
This stock 10+ is heavily configured but it gives it better battery life and is more secure.
With the newer more efficient memory and CPU you should be able to do better than me. I'm running on 4 G lte only, not sure if 5 G is still an issue now or not.
This is my SOT usage right now and a lot of that was streaming vids. Ha-ha notice the Accubattery charging reporting glitch, no idea what triggered that... Adroids.

blackhawk said:
Sounds like there's background activity going on.
Google backup Transport and Framework maybe. I have those two always package disable and Google play Services is turn off. Google Play Services is a vampire and not often needed by me except mostly for Gmail.
Playstore is also package disabled unless needed. Location is always off unless needed.
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Well, what kind of "Screen Off Discharge Rate" do you face?
I'm actually quite happy with 1% an hour. It is rather consistent too: 5G or LTE or WiFi -- all the same.

nixnixnixnix4 said:
My S21 Ultra reliably loses 1% an hour without significant intervention on my part and with very light phone usage. I'd say that this is the standby battery loss rate. I'm fine with that. Is that a normal experience?
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Click to collapse
If you're using your device to it's full potential, without handicapping any of it's major functions, 1% per hour seems about at par with what i get on WiFi at home. This goes up to around 2% per hour when I have my Galaxy Watch connected to the phone via BT, and I'm at work, connected to 4G.
I have a Galaxy Tab S7 too, which is always synced to the S21U for "Calls and Messages on other devices" setting, and Seamless Earbud Connection enabled on the Buds Live and the Buds Plus, that allows them to automatically jump between the phone and the tablet depending on which device i pick up and start using. I also have Your Phone app running in the background, that connects my phone to my Windows laptop for calls, messages and notifications. My setup allows a close integration among all my devices and I can take calls or continue work on anything at home with a screen.
I'm using Dual SIMs, both on LTE, WiFi and BT always on, Auto-Sync enabled, FHD+ (my eyes couldn't appreciate the difference between FHD+ and WQHD+), Adaptive Refresh Rate, Auto-brightness enabled, and no debloating except what Device Care automatically puts to sleep/deep sleep. And with all this going, I've never run out of battery in a day, so far. If I were to use only the phone screen for everything, then maybe SOT would've mattered more - but I jump between devices at my convenience and my use-case scenario, and i like that flexibility and freedom. Samsung is the only non-apple company that makes such a cohesive eco-system currently across these many device categories.
So as long as my phone makes it to the end of the day (when everything gets plugged in anyway), I'm not looking to cripple any functionality on this expensive glass and silicon sandwich. I just want to get my money's worth...
So for my specific use case, I'm happy leaving the phone running everything it is capable of, while sipping a little battery in the background. YMMV.

enigmaamit said:
If you're using your device to it's full potential, without handicapping any of it's major functions, 1% per hour seems about at par with what i get on WiFi at home. This goes up to around 2% per hour when I have my Galaxy Watch connected to the phone via BT, and I'm at work, connected to 4G. ...
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My outlook is the same.
By the way, you might want to try Samsung Flow from the Microsoft Store. I find it to be loads better than Your Phone. It has every feature I would want. Drag and drop into a folder in the Files App. Control apps / screen remotely. Clipboard connection ON/OFF. And, more.

nixnixnixnix4 said:
My outlook is the same.
By the way, you might want to try Samsung Flow from the Microsoft Store. I find it to be loads better than Your Phone. It has every feature I would want. Drag and drop into a folder in the Files App. Control apps / screen remotely. Clipboard connection ON/OFF. And, more.
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I tried it right after i got the phone but found the Your Phone integration a little better for calls, messages and notifications. Flow was better at file transfer definitely, but because most of my services are cloud based, I rarely require an actual inter-device file transfer.
But this was months ago, and maybe Flow has improved over time.
Thank you for the suggestion, I will try it out once again and see how it works for me.

nixnixnixnix4 said:
Well, what kind of "Screen Off Discharge Rate" do you face?
I'm actually quite happy with 1% an hour. It is rather consistent too: 5G or LTE or WiFi -- all the same.
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Click to collapse
Less than .5%@hr about 3% for 6 hours or so is what it's running now. It's not much...

Question SOT is lesss really less

I've seen a maximum of 5 hours of SOT since I got the phone. My sot time is very short when I see other people's sot times. I always use the phone with the following features; +4G +always bluetooth +always location + no wifi +always sync +dolby atmos +dark mode +when i got notifications aod. Although I turned off the settings I used, I still could not do this for more than 5 hours.
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Show us a screenshot of battery usage when you are at 10% - not at 80% - then we can see where all your battery fuel is going.

Sure its from 2 days ago

Battery is draining extremely fast on Android 12 (BULK) as well...
Is there a way to know if our phones haven't been manufactured by Samsung?
- There is Korea but also Vietnam etc... this might have an impact somehow?

What are you doing on whatsapp....that's a huge drain....

DS1000RR said:
What are you doing on whatsapp....that's a huge drain....
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whatsapp is always a huge drain if you use to send and receive messages. My solution to this was enable multi-device login. I, now, use Whatsapp mainly on my computer when I'm at work and then revert to the phone when I'm off. The led to a huge difference. What used 25%+ for whatsapp..now stands at 4-5% over the day.

RedWave31 said:
Battery is draining extremely fast on Android 12 (BULK) as well...
Is there a way to know if our phones haven't been manufactured by Samsung?
- There is Korea but also Vietnam etc... this might have an impact somehow?
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Click to collapse
Actually since when I bought phone (almost 1 year) battery same. Even I sent to warranty for change battery. But still same sot

DS1000RR said:
What are you doing on whatsapp....that's a huge drain....
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Morning 7 to 5pm I m using WhatsApp for work. I m using 2 WhatsApp. Work WhatsApp isn't stop every minute always receiving several message. I can't stop WhatsApp because of work. I think that's why WhatsApp percent is so much

amirage said:
whatsapp is always a huge drain if you use to send and receive messages. My solution to this was enable multi-device login. I, now, use Whatsapp mainly on my computer when I'm at work and then revert to the phone when I'm off. The led to a huge difference. What used 25%+ for whatsapp..now stands at 4-5% over the day.
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reqirement of my job I m working at construction site so I can't use on my computer. I don't have other solution to multi wp

I use WhatsApp endlessly with friends and family every day and I get nothing remotely like that drain....

DS1000RR said:
I use WhatsApp endlessly with friends and family every day and I get nothing remotely like that drain....
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Also I tried to several time uninstall and reinstall but still same nothing difference

Tahabey58 said:
I've seen a maximum of 5 hours of SOT since I got the phone. My sot time is very short when I see other people's sot times. I always use the phone with the following features; +4G +always bluetooth +always location + no wifi +always sync +dolby atmos +dark mode +when i got notifications aod. Although I turned off the settings I used, I still could not do this for more than 5 hours.
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Does your battery run out by the end of your typical workday? Do you have to charge it during the day everyday, or can you get to the charger comfortably when going to sleep at night? SOT by itself isn't a very good metric when seen in isolation.

enigmaamit said:
Does your battery run out by the end of your typical workday? Do you have to charge it during the day everyday, or can you get to the charger comfortably when going to sleep at night? SOT by itself isn't a very good metric when seen in isolation.
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In a day average I have 4 hours screen on time and I m using in a work phone around 4 - 5 hours. That's mean every noon I m charging phone if not it finish before leave work.

DS1000RR said:
I use WhatsApp endlessly with friends and family every day and I get nothing remotely like that drain....
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Are you mainly on Wi-Fi or mobile network? OP is on a building site so most likely on mobile network most of the day

dezborders said:
Are you mainly on Wi-Fi or mobile network? OP is on a building site so most likely on mobile network most of the day
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I always using mobile network 4G signal is %75

Tahabey58 said:
In a day average I have 4 hours screen on time and I m using in a work phone around 4 - 5 hours. That's mean every noon I m charging phone if not it finish before leave work.
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So your battery level goes to 20% or below by every noon? Sheesh, that is indeed potato battery life...
But your screenshot suggests a pretty good standby time, nearly 11 hours usage and 72% remaining...
Maybe post the battery usage screenshot once your battery dips below 20% so we can try to pinpoint the issue?

enigmaamit said:
So your battery level goes to 20% or below by every noon? Sheesh, that is indeed potato battery life...
But your screenshot suggests a pretty good standby time, nearly 11 hours usage and 72% remaining...
Maybe post the battery usage screenshot once your battery dips below 20% so we can try to pinpoint the issue?
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Actually my battery level around %50 in noon. For example this screen shot is today after noon. In noon was %100

I am 90% sure that your battery drain is caused by the mediocre 4G signal which is used for internet at all times. A lot of power is basically being allocated to get a better signal and thus while you use WS all the time, your batt drains FAST. If you happen to have Wi-Fi for a day or two and the signal is maxed out, the battery will surely last longer. Generally speaking though, you cannot compare other peoples SOT to yours as most people do not use WS as much as you, nor 4G at all times.
There might be some other extra settings that could be altered to improve battery, like:
adaptive battery ON
enhanced processing OFF
location OFF
background data OFF
resolution to FHD
background usage limit to put rarely used apps to sleep
NFC OFF
nearby device scanning OFF
And of course the last version of android 11, as it seems A12 is not yet worthy or ruling the S21U. Sadly I have a feeling that Samsung might not fix A12 for the S21U as they are now releasing the S22. Hope I'm wrong.

The Big Battery drainers:
Screen - If you have manually set it high - Try Auto
Mobile Signal - Nothing you can do if its poor - unless possibility of WIFI
Location - Always On is a no no if you can help it - try use when app open only.
Background Data - Turn off for apps which its not reqd .
Also Since Android 12 I also seem to get lower SOT although my phone battery has been same since android 11. Im not sure if they changed the way they show/measure SOT now.