Question Battery life not as expected - Samsung Galaxy S21 Ultra

So i got my S21 Ultra a couple of weeks ago and the battery life isn't as good as people tell it to be... I wonder if this is normal or i have a faulty unit
Important: i am running the latest update on my exynos device (february security patch as of the making of this thread)

What do you expect? You have used the phone almost 12 hours, used Samsung Music for nearly 8 hours and still have 78% battery left lol. This is great.

iamnotkurtcobain said:
What do you expect? You have used the phone almost 12 hours, used Samsung Music for nearly 8 hours and still have 78% battery left lol. This is great.
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The SoT is pretty crap i can only get 5 to 6 hours if i'm lucky, all i do is watch youtube and netflix and nothing else pretty much, and since SoT is pretty important to me idk if i should wait for an update or get another unit

If you are comparing to a Chinese phone, I would agree that the battery life is not great. Before buying S21 Ultra(exynos), I was using Mi 10T pro. It has better battery performance than S21 Ultra. The other thing that I dislike about would be the heat issue on S21 Ultra. Its horrible.

SOT is only one measure of battery life, the battery still depletes when the screen is off, especially if you're doing something like listening to music for 7 hours......
If you saw the YouTube 'battery drain' tests, the majority are in a room, mobile turned off and on WIFI. They are in constant use with minimal ramping/up down of the processor as they only switch apps every hour. These guys achieve up to 9 hours with constant use in optimal conditions.
If you extrapolate out your current usage you're on for 7 hours with 51 hours total, which is very very strong. People would kill for that endurance
At best you can expect 0.5% an hour drain if you aren't using the phone, but that's if you literally leave it overnight and don't touch it. More likely it'll be between 1-2% depending on usage, so if you calculate you've had roughly 10 hours of screen off, that's about 10% battery that isn't being used on screen on time, which equates to roughly an hour of SOT 'missed out on' if you were just to run the device with the screen on for the sake of it.
If you're truly only concerned about SOT, run a day without music in the background and see the improvement. It's a nonsensical thing to do as that's not how you use your phone, but will get you the numbers you want...
You're also using a high end processor and a large screen with a high refresh rate, it's going to use more juice than a mid range or low end phone. If you send that phone back, someone else is going to be very happy when they get it as their replacement

mtm1401 said:
SOT is only one measure of battery life, the battery still depletes when the screen is off, especially if you're doing something like listening to music for 7 hours......
If you saw the YouTube 'battery drain' tests, the majority are in a room, mobile turned off and on WIFI. They are in constant use with minimal ramping/up down of the processor as they only switch apps every hour. These guys achieve up to 9 hours with constant use in optimal conditions.
If you extrapolate out your current usage you're on for 7 hours with 51 hours total, which is very very strong. People would kill for that endurance
At best you can expect 0.5% an hour drain if you aren't using the phone, but that's if you literally leave it overnight and don't touch it. More likely it'll be between 1-2% depending on usage, so if you calculate you've had roughly 10 hours of screen off, that's about 10% battery that isn't being used on screen on time, which equates to roughly an hour of SOT 'missed out on' if you were just to run the device with the screen on for the sake of it.
If you're truly only concerned about SOT, run a day without music in the background and see the improvement. It's a nonsensical thing to do as that's not how you use your phone, but will get you the numbers you want...
You're also using a high end processor and a large screen with a high refresh rate, it's going to use more juice than a mid range or low end phone. If you send that phone back, someone else is going to be very happy when they get it as their replacement
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Click to collapse
With my s21 ultta i can easily achieve 10-12hours of sot with browsjng and youtube on wlan with total runtime of 48hours.on mobile data its a good 35% less (also cause of brighter screen outdoors) but Overall its good battery life for me (note im debloated and using Samsung browser with darkmode!!)

I'm doing OK on the battery. Turned off goggle discover on side screen has helped aswell as 5g disabled as I don't have it where I live atm

Goku1992 said:
With my s21 ultta i can easily achieve 10-12hours of sot with browsjng and youtube on wlan with total runtime of 48hours.on mobile data its a good 35% less (also cause of brighter screen outdoors) but Overall its good battery life for me (note im debloated and using Samsung browser with darkmode!!)
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Ive attached a screenshot. Note this was 90% with wlan

Goku1992 said:
Ive attached a screenshot. Note this was 90% with wlan
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Click to collapse
What have you done other than debloat and Samsung browser?

mtm1401 said:
What have you done other than debloat and Samsung browser?
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Nothing running 60hz and wqhd (on my phone fhd and wqhd doesnt made a different more that 2-4% so....)

Goku1992 said:
Nothing running 60hz and wqhd (on my phone fhd and wqhd doesnt made a different more that 2-4% so....)
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Yea it'll be the 60hz getting you through then, makes sense

mtm1401 said:
Yea it'll be the 60hz getting you through then, makes sense
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Yes if you want the same smoothness and a good 10% better battery you can use the 96hz mod

Put brightness on manual. The display eats a lot of the battery. Try to keep it at 50% or less.
Turn off all animations and use dark mode/dark wallpapers. Junk like tic-tok, fb don't help.

blackhawk said:
Put brightness on manual. The display eats a lot of the battery. Try to keep it at 50% or less.
Turn off all animations and use dark mode/dark wallpapers. Junk like tic-tok, fb don't help.
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Click to collapse
Im using automatic brightness. Yes only using instagram, fb in the browser cause zhose notifications are annoing...

Goku1992 said:
Im using automatic brightness. Yes only using instagram, fb in the browser cause zhose notifications are annoing...
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Click to collapse
Fb is malware, I don't care who or what's on it, it's off limits. Instagram... no way.
Tweeter just as bad as fb. Full boycott on all that junk until they f-f-fade away
Been using manual brightness control for over a year on my 10+. Occasionally I toggle it on but rarely. Going full brightness will greatly reduce OLEDs finite lifespan. Blue goes first... and the burnout isn't even. If I can get 5 years with just a battery change or two, I want it.
So far between Samsung's and Android's weak offerings I have zero incentive to upgrade hardware or firmware

blackhawk said:
Fb is malware, I don't care who or what's on it, it's off limits. Instagram... no way.
Tweeter just as bad as fb. Full boycott on all that junk until they f-f-fade away
Been using manual brightness control for over a year on my 10+. Occasionally I toggle it on but rarely. Going full brightness will greatly reduce OLEDs finite lifespan. Blue goes first... and the burnout isn't even. If I can get 5 years with just a battery change or two, I want it.
So far between Samsung's and Android's weak offerings I have zero incentive to upgrade hardware or firmware
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Yes but if you are using them in tge browser they cant suck your battery up and im only using them for roughly 10minutes a day so no problem. But youre right they are like malware... Traking your location every few minutes and that ****

Goku1992 said:
Yes but if you are using them in tge browser they cant suck your battery up and im only using them for roughly 10minutes a day so no problem. But youre right they are like malware... Traking your location every few minutes and that ****
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Click to collapse
I do 20-30% charges throughout the day.
Crap like Twitter and fb can cost you your job as well as privacy leading you open to attacks of all kinds. Zero rewards and lots of risk. No.
Remember the night of the long knives?
Think how much easier it be to do now...

Has there been testing on the battery effect of different wireless network modes, including while being connected to Wi-Fi?
I understand that 5G uses more battery, but I'm curious how that is affected when you remain connected to Wi-Fi for all data transfers (using 5G just for calls and texts).
Same question for the other network modes, like LTE/3G/2G vs LTE/2G etc. Or also when you are not connected to Wi-Fi.
I can't help worry that some people are getting bad battery life because they have a poor network signal?

Only rough but very little difference between 4g and WiFi when still, and that's in a location with 2 bars signal. Seems like the phone sleeps better with mobile data on.
It's hard to make a direct comparison with WiFi Vs network, as a lot of the network drain is when moving and polling for new antenna. When looking at signal strength, 4g/5g have the same dBm and 3g/2g have the same dBm, but 4g needs less dBm for a higher transfer rate than 3g, so may use less power over time.
Also I don't think 5g is inherently more power hungry than 4g (I may be wrong), again it's just less available and shorter radio waves, and until now 5g has relied on external modems.

Exactly, I wonder if our S21 Ultra is much better with battery life on 5G, because our SoC includes the 5G modem and it's not external?
My desire is to just keep my phone on 5G while I'm at home idle and the phone is connected to home Wi-Fi. I wonder if there is a battery savings to be had if I switch to LTE while I'm at home on Wi-Fi and the phone is just idle.

Related

anyone have bad battery life?

i see that a lot of people are posting amazing battery life results.. but no matter how hard I try, mine simply doesn't last 3 days with 8 hours screen on time etcetc
things ive tried:
factory reset then just install the essentials i.e. facebook, whatsapp, zite, mxplayer, pocket, myphoneexplorer.
battery calibration i.e. drain till dead/cant switch on, charge from 0 to 100 with phone off
adjust wifi, gps, autosync settings
and yet, see my attached battery stats. and that's with relatively light use (sat on my office desk) @ 2hr screen on time. no gaming, the most taxing activity was probably watching a movie with mxplayer for 20-30mins or so. the phone died completely 3 hours later.
my firmware is 81.5.39001.xt890.Retail.en.GB
it would SEEM that the battery goes down real fast with any usage.
i want to love the phone but it's not letting me.
thoughts?
firmware versions and screenshots of bad battery life please? lol
Well, mine does not last as well as advertised by others but likely better than this. It can get up to 5h of screen on time in web/video usage and maybe 3 days with less than 1h of screen on time. It also dies very quickly after 10%, 7%-4%-0% shutdown. Germany EU Retail stock firmware. Not the best battery i guess
Well my battery usually last between 1d 3 hours and 1d 20hours with usually display time between 1h 50m - 2h 30m and talk time 45m - 1h 20m talk time, with data or wi-fi always on , autobrightness always on and auto synch always on.
Facebook app and Whatsapp are mainly the guilty apps for the power consumption and data usage .... Without Facebook and Whatsapp installed and with ONLY wi-fi data i had superb power consumption .... 2d 10h and 4h 55m display time with 1h 30m talk time.
PS 2 more things that comsume power in Razr I are 1) music player and 2) FM radio
kourkoubas said:
Well my battery usually last between 1d 3 hours and 1d 20hours with usually display time between 1h 50m - 2h 30m and talk time 45m - 1h 20m talk time, with data or wi-fi always on , autobrightness always on and auto synch always on.
Facebook app and Whatsapp are mainly the guilty apps for the power consumption and data usage .... Without Facebook and Whatsapp installed and with ONLY wi-fi data i had superb power consumption .... 2d 10h and 4h 55m display time with 1h 30m talk time.
PS 2 more things that comsume power in Razr I are 1) music player and 2) FM radio
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Simplestas said:
Well, mine does not last as well as advertised by others but likely better than this. It can get up to 5h of screen on time in web/video usage and maybe 3 days with less than 1h of screen on time. It also dies very quickly after 10%, 7%-4%-0% shutdown. Germany EU Retail stock firmware. Not the best battery i guess
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Click to collapse
thank you for the input guys
@kourkoubas, i think ours is similar then
but i've yet to try turning off facebook autorefresh. sadly whatsapp must stay
i use Music/Pocketcasts everyday but then it's no more than 1 hour combined.
i think ill have to do more testing. that other battery stats thread got my hopes up too high i guess lol
@Simplestas does your screen brightness flash wildly just before it shuts down?
I was a bit disappointed with my battery, too. I read about those 8hrs screen on time and was just stunned. It depends a bit, how i use it .. Usually i have WiFi activated almost all day in university and at home / girlfriend. With 2.5hrs screen on time i always have ~50-60% battery left. Thats a common value for me as i sometimes need my phone for .pdf viewing. I normally have the brightness reduced to ~15%.
For me, it was a huge improvement over my old Desire HD, but it still could be better. Anyway i don't want to forget the fact that i used JuiceDefender with my DHD and used every option i have to improve battery life while i just don't have to at my razr i, it just doesn't die one evening or in the middle of the day like my DHD used to.
@Simplestas does your screen brightness flash wildly just before it shuts down?
I don't think so.
Try testing if taking pictures with flash works with battery < 50%. If it causes immediate shutdown your battery is likely faulty.
The Battery life was on the beginning really good but now its getting worser
Sent from my XT890 using xda premium
Simplestas said:
@Simplestas does your screen brightness flash wildly just before it shuts down?
I don't think so.
Try testing if taking pictures with flash works with battery < 50%. If it causes immediate shutdown your battery is likely faulty.
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Click to collapse
well the battery % seems to be correct.. have attempted to calibrate it quite a number of times now.
it's just that the screen backlight becomes er.. like a flashlight running out of battery- dimming and returning to normal brightness a few times just before it shutsdown at around 2% battery level. just wondered if this is a common behaviour with xt890s/medfield cpus.
because ive never seen this in other moto phones nor any other smartphones for that matter.
CentaXx said:
I was a bit disappointed with my battery, too. I read about those 8hrs screen on time and was just stunned. It depends a bit, how i use it .. Usually i have WiFi activated almost all day in university and at home / girlfriend. With 2.5hrs screen on time i always have ~50-60% battery left. Thats a common value for me as i sometimes need my phone for .pdf viewing. I normally have the brightness reduced to ~15%.
For me, it was a huge improvement over my old Desire HD, but it still could be better. Anyway i don't want to forget the fact that i used JuiceDefender with my DHD and used every option i have to improve battery life while i just don't have to at my razr i, it just doesn't die one evening or in the middle of the day like my DHD used to.
Click to expand...
Click to collapse
well i believe that somebody out there is having really good battery life... just not everyone, sadly.
other than the outrageous 8hr screen on times etc, there are quite a few review sites praising its battery life so we must be missing something and i want to see if it's possible to find out what.
i agree though juicedefender work wonders.
used to rely on it a lot. now I just occasionally use "autosync free". it's more than good enough.
but i don't want to rely on these methods yet..
keskincene said:
The Battery life was on the beginning really good but now its getting worser
Sent from my XT890 using xda premium
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Click to collapse
define good
let's see some stats
and what firmware are you running?
"worse" could just be the new apps you're adding to the phone?
cheers.
6h of screen time already IS GOOD, very good.
4h is what what sgs3 usually gets, 3h is what the n4 gets so 2more hours aint good? Everything gets +-2h with different usage e.g. google now and being on the move, mobile data...
It all depends on your usage but its about 25-50%better then the other quick phones around so please stop *****ing because u saw some very good screen and now cry because all your widgets, push email, chatting, mp3 destroy the screen on time you get
@yellowchilli: sry i cant see your attached screenshot, forum doesnt let me but if you usually get 2h of screen time you should call the support and get a new phone because thats not right.
edit:now i can see it. What did u do with the phone except watching a movie ? Nearly 3h aint critical i cant tell if thats normal or not it could be that you listened mp3 ... if you bought at a store go to them and get a new one anyway the store i bought in wouldnt mind changing it so i hope yours does the same
yellowchilli said:
define good
let's see some stats
and what firmware are you running?
"worse" could just be the new apps you're adding to the phone?
cheers.
Click to expand...
Click to collapse
This was in the beginning.... Now im Happy if i get 3h screen on time
Sent from my XT890 using xda premium
purplet said:
6h of screen time already IS GOOD, very good.
4h is what what sgs3 usually gets, 3h is what the n4 gets so 2more hours aint good? Everything gets +-2h with different usage e.g. google now and being on the move, mobile data...
It all depends on your usage but its about 25-50%better then the other quick phones around so please stop *****ing because u saw some very good screen and now cry because all your widgets, push email, chatting, mp3 destroy the screen on time you get
@yellowchilli: sry i cant see your attached screenshot, forum doesnt let me but if you usually get 2h of screen time you should call the support and get a new phone because thats not right.
edit:now i can see it. What did u do with the phone except watching a movie ? Nearly 3h aint critical i cant tell if thats normal or not it could be that you listened mp3 ... if you bought at a store go to them and get a new one anyway the store i bought in wouldnt mind changing it so i hope yours does the same
Click to expand...
Click to collapse
sadly i had this imported so i guess warranty is going to be difficult. it doesn't even idle very well with very minimal number of apps installed so yer something is wrong
keskincene said:
This was in the beginning.... Now im Happy if i get 3h screen on time
Sent from my XT890 using xda premium
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Click to collapse
wow..
in the beginning- would that mean before the firmware update? i.e. with the laggy homescreen
yellowchilli said:
wow..
in the beginning- would that mean before the firmware update? i.e. with the laggy homescreen
Click to expand...
Click to collapse
Good Question dont know if its the firmware update...
But it sucks now the Hardware is really good i mean the build quality
Hope the Battery comes back to life with the jb update
Sent from my XT890 using xda premium
I get about 2-3 days with minimum usage (auto brightness, WhatsApp, Twitter, occasionally a phone call or web search or camera shot). I have the latest GB retail firmware, no root or whatsoever. Completely stock ROM.
Mine also never got past the 3h30 screen-on time, even if I didn't use it for much else... should I take it to the nearest customer support site?
Also, the phone gets real hot when the screen is on for some time...
This is what I get usually and I love my battery...
Running stock rom 39001.retail.en.GB
Non rooted
Like my work
Visit my channel on youtube
youtube.com/user/Therazrguy
See this
This is clearly a heavy use and I am proud of this much battery life
Like my work
Visit my channel on youtube
youtube.com/user/Therazrguy
Vistaus said:
I get about 2-3 days with minimum usage (auto brightness, WhatsApp, Twitter, occasionally a phone call or web search or camera shot). I have the latest GB retail firmware, no root or whatsoever. Completely stock ROM.
Click to expand...
Click to collapse
thanks. so mine's very similar to yours then. everything is stock and my usage is not particularly heavy. and yet there's no way mine would last 2-3 days lol

[Q] Battery draining too fast on Galaxy S6

Hey guys. I recently bought a GS6 and I love everything about the phone....except the battery! This is literally a deciding factor for me vs the iPhone 6.
I know it has a quad HD screen but my battery drains WHEN THE SCREEN IS OFF. My provider (T-Mobile) says one reason could be that I used all my data (T-Mobile just slows down your speeds). This can also mean it's constantly searching for a better signal. Sometimes I don't get reception indoors but usually my reception is good.
Now, I would understand if my battery was dropping IF I had the screen on, but it's not. It's dropping a percent every 2-3 minutes.
Anyone have this issue and can combat it? My data plan reloads in two days so I can see if it gets better but if not, I will be switching to an iPhone....
Thanks in advance.
I just found out you can't use an iPhone without a simcard inserted..?? That's ludacris! Can't use it as a camera, mediaphone, mp3 player.. nothing.. they steal your money bro.. literally. Don't get brain washed. i.e. Use aftermarket cables, the phone will catch fire and burn your house down as punishment..
iPhone all the apps are paid, since you may get used to it.. you should download better battery stats in the playstore, and it will pinpoint you to the battery drain.. could be something as simple as some bloat app. i.e. facebook trying to connect and sync and all that stuff, when you have no data. Same problems when just on wifi? Airplane mode + wifi?
perhaps you can try rooting, pingpongroot just came out and will root your s6 without tripping knox so you can reset your phone back to normal if you decide to go to the dark side.
Purpose of android and the Galaxy s6 is you can make it better or worse thru rooting, tinkering etc. . iPhones are straight same robotic, limited, just got 1080p screens, consistent right out of the box.
Tinker bro!!
The battery drain is probably from a couple of problems you can find by looking at the first page of the general section. About going to the iPhone all I have to say is the iPhone 6 had horrible battery life on launch. So if you where a early adopter to the iPhone 6 you probably would be equally disappointed. Once we get android 5.1.1 we should have really good battery life. My s6 already lasts longer than my LG g3 ever did and it had a bigger battery so I'm pretty pumped for 5.1.1.
I get about 10 to 12 hours of medium to heavy use without charging.
I don't use powersaver, have volte off, wifi search off, wifi calling off, and trust agents smart lock (google) off.
This is with auto screen brightness.
I have a Zerolemon 2800mah case with me as well, but I never use it.
ThePagel said:
The battery drain is probably from a couple of problems you can find by looking at the first page of the general section. About going to the iPhone all I have to say is the iPhone 6 had horrible battery life on launch. So if you where a early adopter to the iPhone 6 you probably would be equally disappointed. Once we get android 5.1.1 we should have really good battery life. My s6 already lasts longer than my LG g3 ever did and it had a bigger battery so I'm pretty pumped for 5.1.1.
Click to expand...
Click to collapse
I'm disappointed with my S6 battery but love everything else. I came from an S4 that had amazing battery life. I hope 5.1.1 really does fix this issue....
dfg187 said:
I just found out you can't use an iPhone without a simcard inserted..?? That's ludacris! Can't use it as a camera, mediaphone, mp3 player.. nothing.. they steal your money bro.. literally. Don't get brain washed. i.e. Use aftermarket cables, the phone will catch fire and burn your house down as punishment..
iPhone all the apps are paid, since you may get used to it.. you should download better battery stats in the playstore, and it will pinpoint you to the battery drain.. could be something as simple as some bloat app. i.e. facebook trying to connect and sync and all that stuff, when you have no data. Same problems when just on wifi? Airplane mode + wifi?
perhaps you can try rooting, pingpongroot just came out and will root your s6 without tripping knox so you can reset your phone back to normal if you decide to go to the dark side.
Purpose of android and the Galaxy s6 is you can make it better or worse thru rooting, tinkering etc. . iPhones are straight same robotic, limited, just got 1080p screens, consistent right out of the box.
Tinker bro!!
Click to expand...
Click to collapse
I'll keep tinkering! I'ma try freezing some apps without root.
xErwinPLx91 said:
I get about 10 to 12 hours of medium to heavy use without charging.
I don't use powersaver, have volte off, wifi search off, wifi calling off, and trust agents smart lock (google) off.
This is with auto screen brightness.
I have a Zerolemon 2800mah case with me as well, but I never use it.
Click to expand...
Click to collapse
I'll track how much battery I really get. If I get 4-5 hours SoT I'll be happy. It's just the drain while the screen is off really bothers me.
darklime said:
I'm disappointed with my S6 battery but love everything else. I came from an S4 that had amazing battery life. I hope 5.1.1 really does fix this issue. I'll keep tinkering! I'ma try freezing some apps without root. I'll track how much battery I really get. If I get 4-5 hours SoT I'll be happy. It's just the drain while the screen is off really bothers me.
Click to expand...
Click to collapse
Not to sound braggish, but I always get at least 4 hours SOT. Total standby time varies (30-40 hours) depending on how much I use it, but SOT is always between 4-5 hours which is all I expect from a 2550 mAh battery. Battery life during my first week was awful (so bad that I considered selling it) but after rooting, debloating and other tweaks, I am much happier. I am also running Scuk's XtreStoLite Pure Edition rom, which is an extremely lean version of stock with all Samsung bloatware removed. However, I am still on the stock unmodified kernel with no underclocking or other kernel hacks, and I always get at least 30 hours standby. If you want to get serious about better battery life, I recommend flashing a debloated rom. But if you want to stay stock, then use Titanium Backup to freeze the stuff you don't use and Greenify the rest, and your battery life will improve. Just don't expect to set battery life records with the S6, because it will never happen.
I'm not sure why you are losing a percent every 2-3 min when the phone is on standby. I get great battery life on mine. Today I lightly used my phone (A few calls and texts, maybe took 10 pictures and some short videos, browsed the web and YouTube a little) but it was mostly in standby. It has been just short of 12 hours since it was fully charged this morning and it is still at 71%.
Maybe you have a defective battery. Also, and I may have been imagining it, but I think the battery life improved after a week or two of use. Maybe there is a break in period for it.
sublimaze said:
Not to sound braggish, but I always get at least 4 hours SOT. Total standby time varies (30-40 hours) depending on how much I use it, but SOT is always between 4-5 hours which is all I expect from a 2550 mAh battery. Battery life during my first week was awful (so bad that I considered selling it) but after rooting, debloating and other tweaks, I am much happier. I am also running Scuk's XtreStoLite Pure Edition rom, which is an extremely lean version of stock with all Samsung bloatware removed. However, I am still on the stock unmodified kernel with no underclocking or other kernel hacks, and I always get at least 30 hours standby. If you want to get serious about better battery life, I recommend flashing a debloated rom. But if you want to stay stock, then use Titanium Backup to freeze the stuff you don't use and Greenify the rest, and your battery life will improve. Just don't expect to set battery life records with the S6, because it will never happen.
Click to expand...
Click to collapse
T
hank you for replying! I do actually want to stay on stock, but I found this neat thread/program from an XDA user that lets you remote bloat so I will try that.
http://forum.xda-developers.com/android/software/debloater-remove-carrier-bloat-t2998294
That's the link.
I would actually be very satisfied with 30-40 hours of standby time with 4-5 hours of SoT, which is exactly what I'm trying to achieve. If you may, I just have a couple questions to ask. Do you leave Wifi/data on when you're not using it to receive push emails, etc. throughout the day and do you have the Facebook and Messenger app installed? I noticed if I left them running in the background they sucked up my battery.
ThoriatedFlash said:
I'm not sure why you are losing a percent every 2-3 min when the phone is on standby. I get great battery life on mine. Today I lightly used my phone (A few calls and texts, maybe took 10 pictures and some short videos, browsed the web and YouTube a little) but it was mostly in standby. It has been just short of 12 hours since it was fully charged this morning and it is still at 71%.
Maybe you have a defective battery. Also, and I may have been imagining it, but I think the battery life improved after a week or two of use. Maybe there is a break in period for it.
Click to expand...
Click to collapse
Wow, your battery sounds phenomenal! I had 80% this morning and after 8 hours I'm under 50% already with very light use. =/ I feel it's more like 3%/hour on standby but if I can get it to 1-1.5% every hour with wifi and sync on that would be perfect. Thanks for the reply!
Tagging this thread - I'd be happy to hit 20 hours with 4 hours SOT on this battery - today I got 15 hours standby and 2 hours 20 minutes SOT before having to charge.
Guys, found a really nice debloater tool you can use on stock too!
http://forum.xda-developers.com/android/software/debloater-remove-carrier-bloat-t2998294
I just need to know which ones to remove (or a list of what app does what now so I can remove it)
darklime said:
Thank you for replying! I do actually want to stay on stock, but I found this neat thread/program from an XDA user that lets you remote bloat so I will try that.
I would actually be very satisfied with 30-40 hours of standby time with 4-5 hours of SoT, which is exactly what I'm trying to achieve. If you may, I just have a couple questions to ask. Do you leave Wifi/data on when you're not using it to receive push emails, etc. throughout the day and do you have the Facebook and Messenger app installed? I noticed if I left them running in the background they sucked up my battery.
Click to expand...
Click to collapse
I have wifi and location enabled all the time. BT on while in my car, otherwise BT off.
I don't facebook. FB is a known battery hog. Get rid of those 2 apps and you will probably gain another hour SOT.
Here are my current battery stats, on track for another 40 hrs standby + 5 hrs SOT. Overnight drain 2-3%.
IMO the battery life got better over time.. I noticed a huge drain initially.. but for some reason after about 3 weeks with my s6 it's gotten noticeably better.. Its not the best battery, but it does improve
darklime said:
Guys, found a really nice debloater tool you can use on stock too!
http://forum.xda-developers.com/android/software/debloater-remove-carrier-bloat-t2998294
I just need to know which ones to remove (or a list of what app does what now so I can remove it)
Click to expand...
Click to collapse
It appears that it simply disables the app (unless you're rooted). There's an app you can download to do it easier. Download Package Disabler from the Play Store.
sublimaze said:
I have wifi and location enabled all the time. BT on while in my car, otherwise BT off.
I don't facebook. FB is a known battery hog. Get rid of those 2 apps and you will probably gain another hour SOT.
Here are my current battery stats, on track for another 40 hrs standby + 5 hrs SOT. Overnight drain 2-3%.
Click to expand...
Click to collapse
So much want
sublimaze said:
I have wifi and location enabled all the time. BT on while in my car, otherwise BT off.
I don't facebook. FB is a known battery hog. Get rid of those 2 apps and you will probably gain another hour SOT.
Here are my current battery stats, on track for another 40 hrs standby + 5 hrs SOT. Overnight drain 2-3%.
Click to expand...
Click to collapse
Very impressive. I'll hang on to FB because it isn't showing up in my list of used programs atm but if I see any difference I'll remove it. I lost 4% overnight so that's an improvement.
kill2010 said:
IMO the battery life got better over time.. I noticed a huge drain initially.. but for some reason after about 3 weeks with my s6 it's gotten noticeably better.. Its not the best battery, but it does improve
Click to expand...
Click to collapse
I'm not expecting the best battery, but I'm expecting a day and a half of light use due to all these posts I've seen. I'll keep at it and see how it fares.
Synyster06Gates said:
It appears that it simply disables the app (unless you're rooted). There's an app you can download to do it easier. Download Package Disabler from the Play Store.
So much want
Click to expand...
Click to collapse
Yes, I just want to disable it, not remove it because you can't use that space anyways so it's just better to disable it in case you need to re-enable it for an OTA or if you need to return/sell.
sublimaze said:
Here are my current battery stats, on track for another 40 hrs standby + 5 hrs SOT.
Click to expand...
Click to collapse
Wondering if this is considered decent battery life? This is with very light use of text, data and wifi with email sync. The standby time is great but the on-screen time is meh. I also used airplane mode in areas where I was getting spotty reception during class. I also get the message "No internet connection or server not available" and I feel like a certain app is searching for a connection that could drain the battery more but I'm not sure which app it would be.
darklime said:
Wondering if this is considered decent battery life? This is with very light use of text, data and wifi with email sync. The standby time is great but the on-screen time is meh. I also used airplane mode in areas where I was getting spotty reception during class. I also get the message "No internet connection or server not available" and I feel like a certain app is searching for a connection that could drain the battery more but I'm not sure which app it would be.
Click to expand...
Click to collapse
I'd definitely consider that good battery life. I'd love if mine could reach that.
darklime said:
Wondering if this is considered decent battery life? This is with very light use of text, data and wifi with email sync. The standby time is great but the on-screen time is meh. I also used airplane mode in areas where I was getting spotty reception during class. I also get the message "No internet connection or server not available" and I feel like a certain app is searching for a connection that could drain the battery more but I'm not sure which app it would be.
Click to expand...
Click to collapse
Your standby time is great but your SOT isn't that great. Your email app is using a lot of battery syncing. I recommend using Greenify or Servicely to restrict wakeups.
Your idle drain curve looks a bit steep. Mine is almost flat. How much does it drain overnight?
Facebook and FB Messenger are battery hogs. Delete those and you will probably get another hour SOT.
Good idea using airplane mode in areas where you know you won't get signal. You could use Tasker or Llama to automate switching back & forth.
I can live with this.. Took my phone off the charger early this morning
kill2010 said:
I can live with this.. Took my phone off the charger early this morning
Click to expand...
Click to collapse
I wish 9am was early! I unplugged mine at about 0430 this morning. My screen on time is only about an hour and 15 minutes though.
My phone still stays awake too much. One hour is from music during the gym - I'm not sure why the kernel has it staying awake for 6+ hours though
Synyster06Gates said:
I wish 9am was early! I unplugged mine at about 0430 this morning. My screen on time is only about an hour and 15 minutes though.
My phone still stays awake too much. One hour is from music during the gym - I'm not sure why the kernel has it staying awake for 6+ hours though
Click to expand...
Click to collapse
Yeah that is jacked up. GSam monitor shows your phone has been awake for over 8 hrs, so it is not going into deep sleep. Out of curiosity, install CPU Spy and see what it shows. It should be similar to this:

Battery life is ****!

Don't k kw what I am doing wrong. Not doing any fancy stuff. Screen in time 1hour and already down to 65%..?
Well, there's a lot of things that can affect the phone:
1. What's your screen resolution at?
2. What were you doing for that hour? Using active aps with constant data transfer (like streaming services or live games)?
3. How bright is your screen set? I keep mine at about 35%
4. Are you running any of the battery saver options?
5. What's your performance mode set to?
With my screen resolution dropped down to the lowest setting, my brightness at 35%, and no power saving features, I can read for three and a half hours on the FanFiction app, and not even drop to 70%.
Boot up in safe mode and see if it still bad. If not, is the crap you installed, if it is, then something with the system, probably some settings. Also, if you just got the phone, give it few days, it's probably syncing and updating. Mine is at 9 hrs since full charge, 1h 10min SOT plus 1 hour AOD I'm at 80% and I know I can do better if I put some effort in it. I got everything on, max resolution, NFC, BT, GPS, wifi it's all on.
Motawa88 said:
Don't k kw what I am doing wrong. Not doing any fancy stuff. Screen in time 1hour and already down to 65%..?
Click to expand...
Click to collapse
You know, this forum has an excellent SEARCH-function?
Poor battery performance, what to do?
Note 8 battery life
henklbr said:
You know, this forum has an excellent SEARCH-function?
Poor battery performance, what to do?
Note 8 battery life
Click to expand...
Click to collapse
This ^^
On that note, thread closed.

What are S2mps18-IRQ and DHDPCIE_Host_wake? Battery Historaian.

Honestly my battery isn't that great, after having almost everything disabled (except bluetooth, wifi and gps on battery saving & aod) I am still losing atleast (lowest screen off discharge rate) a 1.3% with an average of 1.83 over a 10% small test atleast according to battery historation. This is while using greenify along with samsung's own battery optimization.
Over this 10% (from 90 to 80% battery) there were over 40K kernal wakesources here's an image showing the wakesources and wakeup reasons.
I'm trying to point the reason to why this happens and my guess is whats on the title so what are they ?, Userspace wakelocks seem reasonable, the highest being spotify for 4 minutes also here are the device power estimates
I'm not using mobile data btw as I dont have data on my SIM (I use a portable router). I am honestly in a pickle, I have no idea what more I can do except put on powersaving mode and disable the rest but thats absolutely counter-intuitive, my S8+ lasted me 2 days with everything I used enabled.
I'm looking for solutions that dont involve me replacing the phone or resetting at the moment (I dont mind doing the latter at some point but the former is harder to do)
battler624 said:
Honestly my battery isn't that great, after having almost everything disabled (except bluetooth, wifi and gps on battery saving & aod) I am still losing atleast (lowest screen off discharge rate) a 1.3% with an average of 1.83 over a 10% small test atleast according to battery historation. This is while using greenify along with samsung's own battery optimization.
Over this 10% (from 90 to 80% battery) there were over 40K kernal wakesourceshere's an image showing the wakesources and wakeup reasons.
I'm trying to point the reason to why this happens and my guess is whats on the title so what are they ?, Userspace wakelocks seem reasonable, the highest being spotify for 4 minutes also here are the device power estimates
I'm not using mobile data btw as I dont have data on my SIM (I use a portable router). I am honestly in a pickle, I have no idea what more I can do except put on powersaving mode and disable the rest but thats absolutely counter-intuitive, my S8+ lasted me 2 days with everything I used enabled.
I'm looking for solutions that dont involve me replacing the phone or resetting at the moment (I dont mind doing the latter at some point but the former is harder to do)
Click to expand...
Click to collapse
Okay, so what model device do you have and what is your daily SOT?
What's your carrier?
Do you have good coverage in your area?
What kind of apps do you run?
Jammol said:
Okay, so what model device do you have and what is your daily SOT?
What's your carrier?
Do you have good coverage in your area?
What kind of apps do you run?
Click to expand...
Click to collapse
Portable router is probably the culprit. LTE is more efficient than WIFI for me and has been since the Note 4 when power envelope tracking was introduced.
Jammol said:
Okay, so what model device do you have and what is your daily SOT?
What's your carrier?
Do you have good coverage in your area?
What kind of apps do you run?
Click to expand...
Click to collapse
Exynos 128GB, my max SoT has been 6 hours with everything disabled | Greenified. That was yesterday but after I let the phone die on its own and then charged it back to full its as bad as non-greenified everything enabled. Coverage is good enough (usually good/great), Here are my apps https://pastebin.com/0D7VJGh0 I even deleted some of them and the rest are disabled. Edit: Actually, every customization app here and every store that isn't the playstore has been removed
@rbiter said:
Portable router is probably the culprit. LTE is more efficient than WIFI for me and has been since the Note 4 when power envelope tracking was introduced.
Click to expand...
Click to collapse
Doesn't explain why the S8+ was much more efficient, also according battery historian wifi power usage is 0.02%/hr
battler624 said:
Exynos 128GB, my max SoT has been 6 hours with everything disabled | Greenified. That was yesterday but after I let the phone die on its own and then charged it back to full its as bad as non-greenified everything enabled. Coverage is good enough (usually good/great), Here are my apps https://pastebin.com/0D7VJGh0 I even deleted some of them and the rest are disabled. Edit: Actually, every customization app here and every store that isn't the playstore has been removed
Doesn't explain why the S8+ was much more efficient, also according battery historian wifi power usage is 0.02%/hr
Click to expand...
Click to collapse
Hmm, I would suggest starting over by wiping and setting up your device without any apps other than the ones that come on it. Use the device for about a day, install one app, use it some more after a full charge, and so on. You can try that to see if you can track down what's going on.

General Battery life and optimization

During intensive initial days I get 4-5 SOT and 12h use time. This is with mid heavy usage.
My battery starts today attached:
- over 7h music streaming partially on Chromecast partially bt
- over 1h YouTube (45min in browser)
- 40min Teams video call
- over 30min photos and videos in two camera apps
- 1h of Opera browsing
- Gmail, messenger, maps and all other apps in constant synchronization
- last.fm and pebble running in background
From the list you can clearly see that the only stand behavior is connected to AOD which was over 1%/h so I have disabled it.
Hello
As I understand in my daily use, mixed WiFi - 4g, you can reach 5h.30min ost. Maybe is necessary some adjustments on 4g/5g modem, it sucks a little bit of battery WiFi is the best, the graph is linear.
Attached my mixed 4g/WiFi experience, during today. I forgot kill YouTube, I did 2hr screen total. As you can see in WiFi the graph is linear (untill the middle), while on 4g (2nd half), the curve began to drop more steeply.
Starting to learn how to use this phone.
No complains at all. Can't kill the battery in one day. Most of the screen time is at evenings at lower brightness but I do work so it's my natural usage.
After disabling always on screen, 5G, Google tracking and backup I easily get over 6h SOT and less than 40% battery drain during 24h.
Battery is very good and there's no doubt about it.
I get about 3.5h SOT for 80% battery, no 5g, no AOS, dynamic mode, screen 90hz, no gaming, no apps with heavy drain
I lost 3% over 9 hours last night while the phone was on my bedside table,this was the first night,i think the phone is deep sleeping properly?i have restricted quite alot of apps from running in background
Screenshot_20210609-123443716.jpg
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7.5+ hours of SOT is possible. Here I reach 7 hours and 13 minutes of SOT from 90% to 8%. Ultra durable mode, no 5G, no mobile data always active in developer options, all WiFi, and Facebook services disabled. Brightness is set to auto.
To those who's looking for compact phone, superb performance, 120hz display, great speaker, and good battery life, go on with Zenfone 8. Here's my SOT on my Zenfone 8 with force 90hz enabled. Cheers
It looks like the last update improves the battery life quite a bit. Only free hours so no hard claims but the impression is heavy.
Kemez said:
It looks like the last update improves the battery life quite a bit. Only free hours so no hard claims but the impression is heavy.
Click to expand...
Click to collapse
Can you specified which “last update” you talking about?
aikattx said:
Can you specified which “last update” you talking about?
Click to expand...
Click to collapse
The one I got today: 30.11.51.67
I have updated the phone at 70% and got brilliant times afterwards. Over 5:15h SOT and 15h since charged with 20% still left.
Kemez said:
The one I got today: 30.11.51.67
I have updated the phone at 70% and got brilliant times afterwards. Over 5:15h SOT and 15h since charged with 20% still left.
Click to expand...
Click to collapse
I can confirm this. Updated to the latest firmware and boom battery was improved !
aikattx said:
I can confirm this. Updated to the latest firmware and boom battery was improved !
Click to expand...
Click to collapse
Could you please tell me how is the standby drain? Is it more than 1%/h during the night sleep?
avatar_ro said:
Could you please tell me how is the standby drain? Is it more than 1%/h during the night sleep?
Click to expand...
Click to collapse
I get between 1,3 - 1,8 percent during night in deep sleep. Confirmed by AccuBattery.
Kemez said:
I get between 1,3 - 1,8 percent during night in deep sleep. Confirmed by AccuBattery.
Click to expand...
Click to collapse
thank you for the reply, but could you be more specific? the drain you mentioned is per hour or per entire night?
It's per hour.
You can get probably less when switching off connection of data. I am leaving the phone fully ready as I have used it during the day - just put in ultra durable mode.
Jusr for info, after watching a teardown video I realized he battery is actually 3835mah not 4000 !

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