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Samsung Galaxy S7 Battery Life

Hi,
It has been a week since i bought my s7. I was not quite pleased with the battery life. It was just ok. But now it is getting worse.
battery is 10% at the time of writing this.
Total usage is 22 hours
Screen on time is 3 hours
Android system is taking 23% battery
Screen 19 %
Facebook 17 %
Is this normal? I was expecting atleast 4 to 5 hours SOT?
I have the AOD turned on. Sync is always off. I dont even have the mobile data turned on. I mostly use wifi for facebook and browsing.
Any suggestions on how to improve it?

Aod takes 1% in 1 hour. Facebook takes too much but its known issue. Facebook knows that too and making fix right now. You can disable and enable it and then it will be ok.
Sent from my SM-G930F using XDA-Developers Legacy app

Though I own a S7 Edge, the following is from my experience with Note II & S2. I am not facing this with S7 Edge.
When I get a new device or get updates, I do a factory reset and start over. Just clearing the cache doesn't help.
I am using Package Disabler Pro to disable apps when not required and it doesn't require root access.

uchihasaaddragneel said:
Hi,
It has been a week since i bought my s7. I was not quite pleased with the battery life. It was just ok. But now it is getting worse.
battery is 10% at the time of writing this.
Total usage is 22 hours
Screen on time is 3 hours
Android system is taking 23% battery
Screen 19 %
Facebook 17 %
Is this normal? I was expecting atleast 4 to 5 hours SOT?
I have the AOD turned on. Sync is always off. I dont even have the mobile data turned on. I mostly use wifi for facebook and browsing.
Any suggestions on how to improve it?
Click to expand...
Click to collapse
Disable aod. Aod doesn't let doze kick in. So idle drain with AOD is 2-3% per hr.
Sent from my SM-G930F using Tapatalk

Hello, I'd like some help about battery drain too.
I've been using my S7 for 4 months and never made factory reset after the OTA updates.
Today, for example, the battery level fell down from 100 to 43% in 6 hours.
I've taken some screenshots from battery usage screen and the items described inside de Android System item, which is the most drainer one.
If you could give me your thoughts and forgive my poor English, I'd appreciate!

I had the complete opposite to you, well in the first few weeks anyways. It would take like an hour to kill like 3% and I left my phone at 60% once, left it overnight without charge and only dropped 2% - This was the case a number of times

Fjesuino. I wiped my cache, and the battery time did improve a little. Try it out, it might work. But i think there is something wrong with your device android system and sd shouldn't be that high.

olafsand said:
Thanks, i just got rid of fb for now. Will use stock browser. But i kinda like AOD, so i am keeping it on for a while. Anyways i wiped my cache and the battery has improved.
Its 40% now with 2 hours 50 min SOT including an hour of 4g browsing/downloading
Click to expand...
Click to collapse

AzzyC said:
I had the complete opposite to you, well in the first few weeks anyways. It would take like an hour to kill like 3% and I left my phone at 60% once, left it overnight without charge and only dropped 2% - This was the case a number of times
Click to expand...
Click to collapse
S7 or s7 edge? Exonys or Snapdragon? Do you have the always on display turned on? How much screen on time are you getting?

uchihasaaddragneel said:
S7 or s7 edge? Exonys or Snapdragon? Do you have the always on display turned on? How much screen on time are you getting?
Click to expand...
Click to collapse
S7 Exynos and back then I didn't really use AOD. It wouldn't be fair to show battery usage right now though as I'm using quite a heavy custom kernel.
As well as all the other tips you're getting above, I'd recommend flashing the Hydra ROM onto your phone as there are a lot of features to save battery. It ports to the Note 7 and you get features like reducing screen resolution, reduce background processes, it's even got its own RAM manager.
Personally, I don't see the battery as that much of an issue though and I do bash my phone a lot through the day as well.
Have you got a lot of apps installed? Do you have a SD?

uchihasaaddragneel said:
olafsand said:
Thanks, i just got rid of fb for now. Will use stock browser. But i kinda like AOD, so i am keeping it on for a while. Anyways i wiped my cache and the battery has improved.
Its 40% now with 2 hours 50 min SOT including an hour of 4g browsing/downloading
Click to expand...
Click to collapse
Install Facebook beta for no drain.
Sent from my SM-G930F using Tapatalk
Click to expand...
Click to collapse

If you're willing to void your warranty you can install a debloated touchwiz rom that will increase your battery life alot
Sent from my SM-G930F using Tapatalk

I have the same battery life. But i really recommend to you use facebook on chrome.

jacobw15 said:
If you're willing to void your warranty you can install a debloated touchwiz rom that will increase your battery life alot
Click to expand...
Click to collapse
The phones here in pakistan are mostly "smuggled" or imported. I have an imported one from canada g930w8, so it's without warranty.
But i dont want to root it, i have used many custom roms on previous android devices. i personally dont like third party ROMs that much. So i'll just debloat the current one.
Thanks for your suggestion ?

uchihasaaddragneel said:
The phones here in pakistan are mostly "smuggled" or imported. I have an imported one from canada g930w8, so it's without warranty.
But i dont want to root it, i have used many custom roms on previous android devices. i personally dont like third party ROMs that much. So i'll just debloat the current one.
Thanks for your suggestion
Click to expand...
Click to collapse
oh right, np

Heavy use endurance

Playing Candy Crush for 22 hours straight can take its toll on your battery (and your marriage). Rate this thread to express how the Samsung Galaxy S9+'s battery performs under heavy use. A higher rating indicates that it lasts a long time even when playing games, streaming video and audio, and doing other CPU-intensive activities.
Then, drop a comment if you have anything to add!

About 3-4h of heavy use, about the same of what you can expect from the old s8+. I'm sure you can tweak that a bit when you fiddle with power saving modes and display resolution.

The S9+ doesn't have the best battery life. If you expect this phone to last you all day on a heavy usage you will be disappointed. If you need something that lasts all day under heavy use then the Mate 10 pro would be ideal. Another option would be the pixel XL 2.

I think the battery life is pretty good on the S9+. I spent the day on wifi but the screen on time in on par to when I had the Pixel 2 Xl.

dieselhazza said:
The S9+ doesn't have the best battery life. If you expect this phone to last you all day on a heavy usage you will be disappointed. If you need something that lasts all day under heavy use then the Mate 10 pro would be ideal. Another option would be the pixel XL 2.
Click to expand...
Click to collapse
I disagree with this ... S9+ has pretty good battery life.
Sent from my SM-G965U1 using Tapatalk

Disagree. The Galaxy S9 Plus has a pretty good battery life

bassgenerator said:
Disagree. The Galaxy S9 Plus has a pretty good battery life
Click to expand...
Click to collapse
Any advice on how to get better battery life.
Sent from my SM-G965F using Tapatalk

Anyone have an idea on how bluetooth affects battery life. It's the one thing I have yet to test.
Sent from my SM-G965W using Tapatalk

Another question beside the Way of the thread...how do you get this black theme?! mine is white....i love dark themes...

the_judges said:
Another question beside the Way of the thread...how do you get this black theme?! mine is white....i love dark themes...
Click to expand...
Click to collapse
try one of the "high contrast" themes in samsung theme store
---------- Post added at 09:58 AM ---------- Previous post was at 09:57 AM ----------
IUH1991 said:
Anyone have an idea on how bluetooth affects battery life. It's the one thing I have yet to test.
Sent from my SM-G965W using Tapatalk
Click to expand...
Click to collapse
depends on what you are using it for. in my experiences, bluetooth is a drop in the bucket when compared to screen brightness and background syncing/processes

Just wondering. To the guys with good battery life: Which processor are you running? The Exynos is terrible...

dieselhazza said:
The S9+ doesn't have the best battery life. If you expect this phone to last you all day on a heavy usage you will be disappointed. If you need something that lasts all day under heavy use then the Mate 10 pro would be ideal. Another option would be the pixel XL 2.
Click to expand...
Click to collapse
Coming from a pixel 2 XL I completely disagree. I averaged at least 2 hours more screen on time then my pixel ever did at its best in my standby time is better than the pixel. I didn't buy it for that reason but it's a nice extra

Bxrider117 said:
I think the battery life is pretty good on the S9+. I spent the day on wifi but the screen on time in on par to when I had the Pixel 2 Xl.
Click to expand...
Click to collapse
: D

Here is my S9+ Exynos variants G965FD battery usage, and im on stock without root. Those screenshot is came from same device, done 2 test from 100% to 5% ? so far im satisfied with this result as stock user. Rooted will be better next ?
TEST 1 result: 7hr 15min SOT left 12%
Straight LTE's ON
Display WQHD+
Always On Display ON
40% Brightness
Power Saving OFF
Clash Of Clans 4hr 30min
Youtube almost 2hr
Normal apps usage ( WhatsApp, Insta n Facebook )
TEST 2 result: 9hr SOT left 5%
Straight LTE's ON
Display WQHD+
Always On Display ON
40% Brightness
Power Saving OFF
Marvel Future Fight 1hr
Youtube almost 4hr
Normal apps usage ( WhatsApp, Insta n Facebook )
Sent from my Galaxy S9+ using XDA Labs

Encik Panda said:
Here is my S9+ Exynos variants G965FD battery usage, and im on stock without root. Those screenshot is came from same device, done 2 test from 100% to 5% ? so far im satisfied with this result as stock user. Rooted will be better next
TEST 1 result: 7hr 15min SOT left 12%
Straight LTE's ON
Display WQHD+
Always On Display ON
40% Brightness
Power Saving OFF
Clash Of Clans 4hr 30min
Youtube almost 2hr
Normal apps usage ( WhatsApp, Insta n Facebook )
TEST 2 result: 9hr SOT left 5%
Straight LTE's ON
Display WQHD+
Always On Display ON
40% Brightness
Power Saving OFF
Marvel Future Fight 1hr
Youtube almost 4hr
Normal apps usage ( WhatsApp, Insta n Facebook )
Sent from my Galaxy S9+ using XDA Labs
Click to expand...
Click to collapse
your battery life looks good to me. mine can hardly get 6hrs SOT. Are u using 1 sim card or 2?

bsod01 said:
your battery life looks good to me. mine can hardly get 6hrs SOT. Are u using 1 sim card or 2?
Click to expand...
Click to collapse
Sorry for lated as im little busy this week, thanks bro. Btw im not using 2 sims as i got my another sims on my S7e + it will confusing me when using two sims on one device ?
Sent from my Galaxy S9+ using XDA Labs

Encik Panda said:
Here is my S9+ Exynos variants G965FD battery usage, and im on stock without root. Those screenshot is came from same device, done 2 test from 100% to 5% ? so far im satisfied with this result as stock user. Rooted will be better next
TEST 1 result: 7hr 15min SOT left 12%
Straight LTE's ON
Display WQHD+
Always On Display ON
40% Brightness
Power Saving OFF
Clash Of Clans 4hr 30min
Youtube almost 2hr
Normal apps usage ( WhatsApp, Insta n Facebook )
TEST 2 result: 9hr SOT left 5%
Straight LTE's ON
Display WQHD+
Always On Display ON
40% Brightness
Power Saving OFF
Marvel Future Fight 1hr
Youtube almost 4hr
Normal apps usage ( WhatsApp, Insta n Facebook )
Sent from my Galaxy S9+ using XDA Labs
Click to expand...
Click to collapse
yes this is a normal phenomenon if you use the phone continuously without a changeover or just a minimum break. nothing new under the sun. try not to use the phone and your results. This can normally be achieved at Exynos at any time.

A request to all: whoever posts battery endurance, plz mention the following :
1. Exynos version or Snapdragon version.
2. The entire lists of tweaks such as
applying of black theme , wifi Scanning off or not, data/wifi both on or one is off, nearby device Scanning is on or off, whether wifi power saving on or off, how many email accounts r in use and how many are in sync and what all are in sync, gallery etc r in sync to cloud or not, location method is in high accuracy/battery saving/GPS only, "improve accuracy" is on or off, if any power saving is enabled, "smart stay" and other measures in advanced feature settings are on or off, if any package disabler or manually disabling stuff via adb etc.....
3. Single or dual sim used.
4. Show the screenshot in full using "scroll capture".

bassgenerator said:
yes this is a normal phenomenon if you use the phone continuously without a changeover or just a minimum break. nothing new under the sun. try not to use the phone and your results. This can normally be achieved at Exynos at any time.
Click to expand...
Click to collapse
Maybe, i dont really know how to measure it correctly. Just rooted mine today ? will try to measure with root if you can teach me how to measure correctly. Before root, usually get 7-9hr depends on my usage w or w/o gaming.

9 hrs of heavy usage . Battery flat in 12 hours.

Overheating due to the old battery is possible?

Hi to all users, hoping you're having a nice day i ask you a question I bought two days ago a second hand Galaxy S7 Flat (G930F) gold platinum 32GB including original box and accessories and bla bla bla for 230€. The phone is working well is updated to Oreo with the latest security patch of July 2018 it's in the same condition as a new one really everything is fine except for one thing or two . Start talking about the battery that is really bad i can reach only 3h30min maybe 4h00min (only under WiFi usage) with screen resolution in FHD a lot of stuff deactivated etc everything setted for a low battery consumption (exeception for power saving mode that i hate) now the thing is i relate the battery to the second problem that i mentioned before and the problem is that the phone overheat a lot and i think this overheating is caused by the old bad battery is that possibile? An example im using only Whatsapp to text messages and the phone it's not hot but if alongside i open common application like Facebook or Instagram or anyway even if i open another two application that they are not Facebook or Instagram the phone overheat! I downloaded CPU-Z to see the temperature of the battery and it goes always from 30.4C to a max of 35.8C or sometimes 36.2C but never higher but the fact is that with this battery temperature when the phone is in my hand its really hot.. the thermal temperatures are always beetwen 36C when the phone is "cold" and max 46/47C when the phone is hot, almost forget to say not always but often the phone overheat a lot even when he is on charge.. now dont tell me that the battery its normal i know well that a S7 or S7 edge can do 6h or 7h of screen on usage (only over wi fi usage) or 4h on screen in 4G all day, mine with this battery reach only 1h33min or 2h in 4G i know this battery is bad and i will replace it in this days i hope until this friday but my question at the end is simple can an old battery cause so much overheating on this S7 or anyway in general on a phone? Thanks in advance to everyone that who spent time to read this and help me!

try installing Phone INFO apps from playstore and look the battery charging cycle. and i can confirm that with the Oreo my phone is hotter than Nougat. i'm using Snapdragon variant btw.

maXDAmn said:
try installing Phone INFO apps from playstore and look the battery charging cycle. and i can confirm that with the Oreo my phone is hotter than Nougat. i'm using Snapdragon variant btw.
Click to expand...
Click to collapse
Screen On time that you get ? mine about 2 hours or 3 max idk what is wrong ??

FakerS3 said:
Screen On time that you get ? mine about 2 hours or 3 max idk what is wrong ??
Click to expand...
Click to collapse
sorry, but i don't concern about SOT anymore. i jave at least 3 apps running on the background including Samsung Health tracking all my step. always walking with my smartphone so i think SOT doesn't mean much for me.

maXDAmn said:
sorry, but i don't concern about SOT anymore. i jave at least 3 apps running on the background including Samsung Health tracking all my step. always walking with my smartphone so i think SOT doesn't mean much for me.
Click to expand...
Click to collapse
Yeah, my batter degraded from 3000mah to 2000mah and I will buy Battery case is not expensive the 25 euros

maXDAmn said:
try installing Phone INFO apps from playstore and look the battery charging cycle. and i can confirm that with the Oreo my phone is hotter than Nougat. i'm using Snapdragon variant btw.
Click to expand...
Click to collapse
The number of battery cycle is 768 and the battery health is 77.6% on Phone INFO

FakerS3 said:
Yeah, my batter degraded from 3000mah to 2000mah and I will buy Battery case is not expensive the 25 euros
Click to expand...
Click to collapse
better to change your battery

maXDAmn said:
better to change your battery
Click to expand...
Click to collapse
Yeah i did but place where i bought S7 they tested it and got 4 hours SOT but how i hardly now i can make 2h SOT

hello, have you changed battery and have you seen improvement? because mine is at 68%.
in addition, it does not exceed the 2:30 of screen on time and gets hot

Exynos N985F Dismal Battery Life (< 3Hr SoT)

I upgraded from my SD S10 to Note 20 Ultra Dual Sim Exynos couple weeks ago and Im getting dismal battery performance with about 2h35 to 3h15 of SoT, and I noticed the standby drain is pretty bad.
Before judging me: Yes I am fully aware of the whole Exynos 990 v Snapdragon thing, but because I couldnt get my hand on a dual sim N20U with SD so I settled with the exynos version, which I have seen people claiming getting about 5 hours of SoT vs. over 6 hours of SoT on the SD, and I would totally happy with 5 hr considering my usage. But barely getting over 3 hours of SoT is just plain stupid considering the price I paid for it.
I love everything else on the N20U, but having to carry around a power bank all the time is really annoying. Is anyone experiencing the same issue and any luck on fixing this? I am not sure if it is a software issue.
P/S: I attached a couple of screenshots for Battery Usage and Gsam Battery report. I did just reset my phone yesterday to see if the performance improves, no luck. I also did all the battery optimization settings + limit all background usage on all unnecessary app, including facebook and other social media apps..

I have the same phone, and i have the same problems... 2-3 Sot maximum. And i hate it.
If i turn off adaptive screen, turn down to minimal resolution and turn on battery saving only the standby drain gets better. The sot stays the same.
Every unnecessary app is in deep sleep, so nothing much more that I can do.
But if you find something out for a solution please share.
Until then I have to carry a powerbank also.
I considered to sell it and buy a pixel 5 , but the Note20U price dropped brutally, so it would be a waste to sell it.
Stay strong !

sortilego said:
I have the same phone, and i have the same problems... 2-3 Sot maximum. And i hate it.
If i turn off adaptive screen, turn down to minimal resolution and turn on battery saving only the standby drain gets better. The sot stays the same.
Every unnecessary app is in deep sleep, so nothing much more that I can do.
But if you find something out for a solution please share.
Until then I have to carry a powerbank also.
I considered to sell it and buy a pixel 5 , but the Note20U price dropped brutally, so it would be a waste to sell it.
Stay strong !
Click to expand...
Click to collapse
I dont know how are people claiming 5 hours of SoT for the Exynos version. I realized most of the claims were made back when it was running One UI 2.5. Not much reviews on battery life on One UI 3 so I am thinking it is software-related. Waiting for samsung to release 3.1 for N20U.
I use the phone to take notes a lot since I am on the go most of the time. I also do some recreational video editing on the phone and it is serving me well. It is unfortunate that the battery is performing like ****

Main is remaining for more than 10 hours of SOT without playing games, 7 to 8 hours while heavy gaming

haythams said:
Main is remaining for more than 10 hours 2ith no games, 7 to 8 hours while heavy gaming
Click to expand...
Click to collapse
Are you on Exynos and on One UI 3? And I noticed you have power saving on, do you leave it on all the time and what are the settings?
Much appreciated

minh.tuanvu27 said:
Are you on Exynos and on One UI 3? And I noticed you have power saving on, do you leave it on all the time and what are the settings?
Much appreciated
Click to expand...
Click to collapse
Yes it's Exynos android 11 UI3, most of the time on power saving mode, usual settings nothing new screen always 60hrz, window animation .5, apps not in regulars use always on sleeping mode, stop Sync but need apps, stop receiving notification but for used apps, using ad block, standard display mode, wifi throttling, multicore packet schedule and other option can reduce battery consumption

Stop using third party apps speacialy for system tweaks after that use battery calibration to get the best battery consumption, screen shot taken just now

4g owners, is there solution for root android 11?
Anyone done?

After a month of using the note 20 ultra 4G exynos 990, I decided to swap it for a 5G snapdragon 865+ version. Got a good deal for trading in my 4G so I pulled the trigger.
Same exact app setup and usage, minimal battery saving tweaking => I managed to get 5+ hours of SoT right out of the bat! One UI 3.0. That's a whole 2 extra hours of SoT on the first day of usage and I believe it's gonna get better over time.

Question Screen on time / battery performance

Hi everyone how is your screen on time mine is worst only 5 hours screen time. This s22 ultra worst one.. i can get full day in one charge

alibalter said:
Hi everyone how is your screen on time mine is worst only 5 hours screen time. This s22 ultra worst one.. i can get full day in one charge
Click to expand...
Click to collapse
8hrs for me.

I can attain 7-8 hs of SOT, which is way more than what I usually got from my note 10+, so, I am very happy with my new S22 Ultra SD

Ryano89 said:
8hrs for me.
Click to expand...
Click to collapse
What is your screen resolution and whats that program foe battwry are you using ? How do you get thats much screen on time can you advise me ? Thnx

alibalter said:
What is your screen resolution and whats that program foe battwry are you using ? How do you get thats much screen on time can you advise me ? Thnx
Click to expand...
Click to collapse
1080 resolution. Adaptive refresh rate. Location on, Bluetooth always on connected to my watch. The only battery saving I do is a routine to turn off auto sync and location when I sleep.
The monitor app is called Battery Guru

Try some basic things like disabling location / auto-sync when not in use, also check apps for background runs
You can try to follow some steps from OneUI optimization guide here, on XDA (followed it myself, currently no issues)

Only 4 hours with my S22 Exynoss, just social media apps

I get 12hrs