Galaxy s7 edge with terrible battery life. - Samsung Galaxy S7 Edge Questions and Answers

software information:
galaxy s7 edge
model number: SM-G935F
baseband version: G935FXXU1BPH1
build number: MMB29K.G935FXXU1BPH6
android 6.0.1 NOT rooted. official system.
android security patch level: august 1, 2016. no updates yet.
ive got serious battery drain.. S7 survives for 10 hours with only 2-3 hours screen on
I dont know what to do and how to fix the problem
pictures added.
p.s- Ive used rooting my old s4 so Im not totally new here.. got some knowlege
thanks

up

Me as well mate. Terrible battery life. This is ridiculous.

??

You can install Wakelock detector to check what services are using cpu.
In my case i have *net_scheduler* wakelock from Google Play service and there's no way to turn it off.
Just wait for a software update. In the latest update my battery life really sucks.
S7 Edge snapdragon version here.

Net_scheduler can be stopped with amplify but need Root and xposed.

have you tried the samsung package disabler(no root required). after i disabled a bunch of the bloatware and a few cycles im getting over 6 hrs. sot with heavy usage.

Awesome battery life for me and this is my first day of having the phone

Try uninstalling Facebook and opt for Facebook Lite, it will also help to increase battery life. Further I have came across some great tips to improve battery life on Galaxy S7 Edge. There are plenty of apps available which can automatically help you terminate background processes, such as Greenify, although it works better with Root Permissions.

3h of SOT is the normal for me :/

ecmperalta said:
3h of SOT is the normal for me :/
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Click to collapse
That's not normal what tasks/apps are you using regularly?

I hate to say it to you because I know what kind of pain in the **** it is, but there's always the possibility you have a defective battery. 3 hours is absurd. Even when I have this thing rockin all day long with games, facebook uploads, netflix, etc, I go to bed with about 20% battery. You should exchange yours

I'm not sure about the battery.
I did the latest update on mine the other day, and its only from then that its been bad. It gets hot, slows down, freezes and drains the battery. Do a restart, and it works fine for a few hours.
I can not for the life of me, find a reason for it to suddenly slow down, and freeze, and use loads of battery. Obviosly something is draining it, and causing it to do this, but what.
Can the latest update be uninstalled
Steve

big_sw2000 said:
I'm not sure about the battery.
I did the latest update on mine the other day, and its only from then that its been bad. It gets hot, slows down, freezes and drains the battery. Do a restart, and it works fine for a few hours.
I can not for the life of me, find a reason for it to suddenly slow down, and freeze, and use loads of battery. Obviosly something is draining it, and causing it to do this, but what.
Can the latest update be uninstalled
Steve
Click to expand...
Click to collapse
try going into settings, storage, tap internal, scroll down to cache and tap it and delete cache only then shut the phone down for a few minutes and reboot. Helped me....

Make sure to turn off Google Backup. My phone would die quickly when this was enabled, but I turned it off, cleared cache, and rebooted and it doesn't do it anymore. This showed up as high Google Services use on my phone with it keeping the phone awake. I like GSAM battery monitor to keep an eye on things. Also, if you can, restrict background data for Google Play Services. I think this is only on the SD820 models though.

vimto25 said:
That's not normal what tasks/apps are you using regularly?
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Click to collapse
just normal use...more of social networks and allmost no games
whatsapp, facebook, instagram, snapchat, youtube
maybe is the signal that isn´t the best here...I don´t wanna go to assistence because it will stay there for a month and they will give it back to me saying "it´s all normal, no problem..."
**** assistence here in Brazil

ecmperalta said:
just normal use...more of social networks and allmost no games
whatsapp, facebook, instagram, snapchat, youtube
maybe is the signal that isn´t the best here...I don´t wanna go to assistence because it will stay there for a month and they will give it back to me saying "it´s all normal, no problem..."
**** assistence here in Brazil
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Click to collapse
Cel signal can drain battery quicker on in some locations or poor services but that's still pretty low for a s7 edge i got 3-4hrs sot with standard s7.
I use the same but do play games too

Switch to 2g when you know you're in bad signal areas. I use a notification app to jump straight to that setting for ease. Makes a difference for me. Always use 2g when in on my wifi or at work.
Sent from my SM-G935F using XDA-Developers mobile app

Same here, started with like 6 hours SOT, now at 3h. Resetted it a few times, tried many different ROMs, etc. Nothing.
Have to live with it I guess

vimto25 said:
Awesome battery life for me and this is my first day of having the phone
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Click to collapse
What device is this? Which S7

Related

Need Battery Help!!!

I need help with my g2. my battery life on this phone is very inconsistent, sometimes i can go 50+ hours on it with 6 hours screen time, but lately my battery has been draining for no reason at all. Im not even using the phone and its rapidly draining for no reason. This all started happening when the gps kept on turning on i read about the carrier iq service and the google location to turn them off. But it doesn't really help much. On my battery manager it says that the android system is first with like 85% or more and it says that my gps has been on for hours and hours even though it hasn't. I don't know what to do i can barely make it through a day now. Should i root my phone? I like the lg ui and i want to keep all of the features such as q slide and especially knock on and off. Can someone help me out if you have had the same experiences. I want to turn off the iq agent permanently. Is this possbile? I have never rooted a device before so im a complete beginner.
fromc2m said:
I need help with my g2. my battery life on this phone is very inconsistent, sometimes i can go 50+ hours on it with 6 hours screen time, but lately my battery has been draining for no reason at all. Im not even using the phone and its rapidly draining for no reason. This all started happening when the gps kept on turning on i read about the carrier iq service and the google location to turn them off. But it doesn't really help much. On my battery manager it says that the android system is first with like 85% or more and it says that my gps has been on for hours and hours even though it hasn't. I don't know what to do i can barely make it through a day now. Should i root my phone? I like the lg ui and i want to keep all of the features such as q slide and especially knock on and off. Can someone help me out if you have had the same experiences. I want to turn off the iq agent permanently. Is this possbile? I have never rooted a device before so im a complete beginner.
Click to expand...
Click to collapse
Download better battery stats and see what wakelocks are causing the drain. Are you using Google+? Are you on Wi-Fi all day? Have you tried uninstalling all your apps and adding them back one at a time until you find the culprit? Something is keeping your phone running...
Sent from my LG-G2 using Tapatalk
Jank4AU said:
Download better battery stats and see what wakelocks are causing the drain. Are you using Google+? Are you on Wi-Fi all day? Have you tried uninstalling all your apps and adding them back one at a time until you find the culprit? Something is keeping your phone running...
Sent from my LG-G2 using Tapatalk
Click to expand...
Click to collapse
Yes i have downloaded better battery stats, and im not using google plus. And im not on wifi all day. The battery is just draining for no reason i even end alot of the running apps such as google location service, facebook, carrier iq agent. I was wondering if i could root my phone and delete carrier iq and get those apps that can help with the battery life, yet keep the original lg ui with all the features.
fromc2m said:
Yes i have downloaded better battery stats, and im not using google plus. And im not on wifi all day. The battery is just draining for no reason i even end alot of the running apps such as google location service, facebook, carrier iq agent. I was wondering if i could root my phone and delete carrier iq and get those apps that can help with the battery life, yet keep the original lg ui with all the features.
Click to expand...
Click to collapse
There are a lot of custom roms built off the stock LG ui
Sent from my LG-G2 using Tapatalk

S5 Worst battery ever

Got this phone about 10 days ago and my battery is terrible since day 1, someone suggested to root my phone and get the BBS app and dump a file i did that and installed a system tuner to disable google CHECKIN OR GCM and unchecked them. apps i got installed to help with battery battery doctor, wakelock detector, os monitor, system tuner, gsam battery, betterbatterystats.
Apps i disabled are:
Ant radio service
Ant+ plugins
App zone
Blurbcheckout
chaton
chrome
flipboard
google play book, games, movies, music, newstand , google search, google+ , hangouts
hp print service plugin
my magazine
s health , svoice , samsung account , samsung apps , samsung galaxy apps widget, samsung push service, smart remote , Top Hd Games
got a plain black wallpaper, even after all this i cant get more than 2h30m screentime and everyone is getting 5h+ do i have a defective unit? what are my options right now? cause basically i removed everything the phone has lol. i talk to my workplace and they can send the phone for repair but i want to see if someone can help me before i do that. i have to unroot the phone if i have to send it for repair even though my phone is 0x1 on knox cause i was stupid to root with cf-root and didnt check other methods.
After all that you did, then it sounds like a faulty battery or device.
Sent from my SM-G900H using Tapatalk
How's your signal at work? I'm on 3g at half signal maybe? I get about 3:30 and standby. But when I'm at home WIFI only I get about 4-4:30 it all depends too on how bright your screen is.
darkfangex5 said:
How's your signal at work? I'm on 3g at half signal maybe? I get about 3:30 and standby. But when I'm at home WIFI only I get about 4-4:30 it all depends too on how bright your screen is.
Click to expand...
Click to collapse
How do I check if I have a good signal at work? Through an app or through a battery status.
Sent from my SM-G900W8 using XDA Free mobile app
This system tuner app you used it not any overclocking or something that might drain you battery?
What screen brightness do you use most of the time?
Can you see what use most of your battery? There is charts you can access in settings -> battery
I run with BLAZE kernel and Alliance ROM. (install without any samsung or google bloat if you can)
And I have been using my phone constantly, playing streemed music, installing apps, downloading from internet, browsing internet, having screen active a lot...
And Now I'm at 87% and have been running 1 hour and 38 minutes on battery. (Was at about 100% battery before)
I run +5 screen brightness and don't have any special powersaving features running that limit my experience with the phone.
You could try that kernel and ROM too, I feel they improved my battery time a lot.
I also shut down some samsung and google bloat stuff like air browse, s voice and such crap, saving a little little battery.
Here is my battery info and my brightness level. I have Canadian g900w from Rogers so I am not sure what roms or kernels you can use ?
Sent from my SM-G900W8 using XDA Free mobile app
kgyirhj said:
This system tuner app you used it not any overclocking or something that might drain you battery?
What screen brightness do you use most of the time?
Can you see what use most of your battery? There is charts you can access in settings -> battery
I run with BLAZE kernel and Alliance ROM. (install without any samsung or google bloat if you can)
And I have been using my phone constantly, playing streemed music, installing apps, downloading from internet, browsing internet, having screen active a lot...
And Now I'm at 87% and have been running 1 hour and 38 minutes on battery. (Was at about 100% battery before)
I run +5 screen brightness and don't have any special powersaving features running that limit my experience with the phone.
You could try that kernel and ROM too, I feel they improved my battery time a lot.
I also shut down some samsung and google bloat stuff like air browse, s voice and such crap, saving a little little battery.
Click to expand...
Click to collapse
I posted my info with photos ^ thanks
Sent from my SM-G900W8 using XDA Free mobile app
Hey, here I have everything turned on and I never followed these stupid extreme battery guides and I easily get over 4 hours of screen time and one day away from the charger. I only use auto brightness, Greenify and KT Kernel.
It's a smartphone, if you're supposed to turn all the features off then you should have bought a dumb feature phone.
Looks like ur using max brightness? Nearly 2 hours screen on time for 44% isnt the best but isnt terrible. I get around 5 to 6 hours using low brightness 3g/4g on besides when screen on. Using android tuner and greenify for tuneing. Screen uses a lot of battery to. Im using. Ktoons kernal now with oc and the batterys probably the same to to me. No beter or worse but. Im running higher clock.
Sent from my SM-G900I using XDA Premium 4 mobile app
---------- Post added at 07:15 AM ---------- Previous post was at 07:14 AM ----------
I also use normal power save eith the greyscale option selected and I have the cpu limited disabled.because ktoons app limits it for me.
Sent from my SM-G900I using XDA Premium 4 mobile app
sofia-captivate said:
Here is my battery info and my brightness level. I have Canadian g900w from Rogers so I am not sure what roms or kernels you can use ?
Sent from my SM-G900W8 using XDA Free mobile app
Click to expand...
Click to collapse
You're set for almost four hours of screen on time there, on what seems to be very poor mobile signal. Doesn't sound that unrealistic to me to be honest.
Poor mobile signal absolutely kills battery life, as your phone spends the entire time searching and trying to get a better signal.
dandroid13 said:
Hey, here I have everything turned on and I never followed these stupid extreme battery guides and I easily get over 4 hours of screen time and one day away from the charger. I only use auto brightness, Greenify and KT Kernel.
It's a smartphone, if you're supposed to turn all the features off then you should have bought a dumb feature phone.
Click to expand...
Click to collapse
I think his point is that most people get 5-6 hours screen time with everything on and without following the "stupid extreme battery guides". To be honest it looks like you aren't getting great life either if you are only getting 4 hours. I regularly get 6-7 with everything on and no greenify or kernel tweaks
Sent from my SM-G900F using Tapatalk
sofia-captivate said:
Here is my battery info and my brightness level. I have Canadian g900w from Rogers so I am not sure what roms or kernels you can use ?
Sent from my SM-G900W8 using XDA Free mobile app
Click to expand...
Click to collapse
I see a couple of things interesting with your setup, Speaking from personal experience, I too have had battery issues drive me up a wall. I'd get just about a day on a battery when everyone else gets about 3-9 days more. My friend has an s5 all stock and he gets 9 days on a freaking battery. WTF
I rooted my first s5, with ANCH baseband and still couldn't solve all the issues with it. So I sent it back to t-mo and they sent me another one, getting batteries on ebay has also ended up a wash. 2 batteries I've received go down 20% from a full charge in the first hour and shut completely down at 32 percent at least I got a refund on that. (So be careful about ebay batteries, even though they say samsung.
So looking at yours here's what I see, Your system is staying awake, lets look at wake locks. Kik is really tearing up your machines wakelock (900wake locks) as well as the camera CPU time, i'd imagine you were recording a video at some point.
1. Go get greenify and greenify those Kik, Instagram and camera apps if thats usage while the screen is off. (No notifications on those apps, i'm afraid when you do that.)
2. Go get system tuner, make sure your rooted by towelroot (If you so choose to keep from tripping knox) and go into app mgr and find android system and go through activities, receivers and services and make sure everything you see that says IQAgent gets unchecked. This will help you stay out of ServiceIQ's eyes and also help your battery as your entire phone is debugged through those apps. (Help is on the forums somewhere)
3. Turn off google now, hotword detection and location history or you'll start noticing Google services draining your battery
4. Go get deep sleep battery saver and remove that battery saver, I personally never liked it it only suggests things to do rather than do them for you. At night or whenever you need to save your battery turn on slumber and it will only take like a percent to 5% in the morning
5. You probably have a bad battery, especially if its down to that low. Time to exchange or return
I'm incredibly disappointed, i've had to do all these things to really figure things out, heck i'd be on firefox for about 15 minutes and go down 18% (Happened this morning)
Android really has some issues with kitkat, and even though we try and fix these problems with modifications there comes a point where one just gives up and tries to deal with it.
I don't understand why my phone gets 1.2 days and my co-workers Verizon s5 gets 9 days with normal usage. Everyone seems to have crazy all over the scale battery life results. Heck, i've reset my phone and flashed so many roms that i'd be safe to say that I have yet to have 10 full discharges in the 4 weeks i've had the phone. At the end of the day though, it's mountains better than my iphone 5 with a lenmar battery case.
Wish I could say the same with stability, I'd be on my bike and switch tracks (or try) and stuff just doesn't respond, heck I can't even go with voice activation with wired headphones and that is really a downer for me. I want to be able to hold down the pause and play and get the google now boop boop sound and speak as i'm riding.
I'm tired of this, and google has no answers, the fixes above only seem to add a couple of hours but not the 9 days I was seeing.
Goldie said:
I think his point is that most people get 5-6 hours screen time with everything on and without following the "stupid extreme battery guides". To be honest it looks like you aren't getting great life either if you are only getting 4 hours. I regularly get 6-7 with everything on and no greenify or kernel tweaks
Sent from my SM-G900F using Tapatalk
Click to expand...
Click to collapse
So? What do you do to have that many hours? Which rom? How often do you recharge? Which apps do you use? That's the point. I never freeze/uninstall anything...
dandroid13 said:
So? What do you do to have that many hours? Which rom? How often do you recharge? Which apps do you use? That's the point. I never freeze/uninstall anything...
Click to expand...
Click to collapse
My rom. With nothing removed or frozen as I have to keep all bloat due to development to check everything. I recharge every night usually with about 20% left and about 5h30 screen on. Using Tapatalk, music, calls, Internet. The usual stuff.
Sent from my SM-G900F using Tapatalk
I get 6-7 hours normal use with the bloatware I never use frozen. And I mean never use.
Gtalk, whatsapp, line, google drive, dropbox, gmail, Yahoo mail, corporate mail, all running. No greenify. No battery saver.
Now playing games is different thing. 2-3 hours max.
My battery is amazing. I keep the screen brightness lower, keep networks and chips off when not using, i use bootmanager to prevent apps from launching ay boot and only 1 active widget. Good for a day and a half of very fair use !
Sent with Galaxy S5 SM-900W8 Rooted LB
It's your probleme. Problably you have some stupid apps I'm your phone that you shouldn't have.
Like you see in my picture. My battery it's just fine and there is 2 stupid apps that eat me my battery without do anything
My battery is great too, maybe problem is some apps
matheus_sc said:
My battery is great too, maybe problem is some apps
Click to expand...
Click to collapse
Yup probably, the only flaw with a smartphone is its user

PSA for T-Mobile Priv users

Hey guys! I hope you're all enjoying your new Priv! I got mine on release day, so I've been tinkering with it since I got it. A few things bothered me about the device: the battery would take forever to charge, even using a Qualcomm certified quick charger, and the battery would drain abnormally fast. Even with no apps running, Antutu would only score 40,000 to 50,000 and 800/2500 in Geekbench.
I found out that the T-Mobile MyAccount app was always running in the background and took up 6% of my phone's battery, just above android OS. After I disabled that app, I found that a full charge would only take about an hour, versus the 2 hours it took before. Battery life also skyrocketed from about 8 hours to 14+. Antutu scores went up to 60,000 to 67,000 (I tested several times) and Geekbench now consistently scores 1200/3500 for me. The phone also doesn't get NEARLY as hot as it used to.
One other thing I did was to change all my accounts in the hub to sync every 15 minutes instead of push, which also seemed to help with the battery life. Hope this info helps you turn your Priv into the best phone it can be!
Zer0.exe said:
Hey guys! I hope you're all enjoying your new Priv! I got mine on release day, so I've been tinkering with it since I got it. A few things bothered me about the device: the battery would take forever to charge, even using a Qualcomm certified quick charger, and the battery would drain abnormally fast. Even with no apps running, Antutu would only score 40,000 to 50,000 and 800/2500 in Geekbench.
I found out that the T-Mobile MyAccount app was always running in the background and took up 6% of my phone's battery, just above android OS. After I disabled that app, I found that a full charge would only take about an hour, versus the 2 hours it took before. Battery life also skyrocketed from about 8 hours to 14+. Antutu scores went up to 60,000 to 67,000 (I tested several times) and Geekbench now consistently scores 1200/3500 for me. The phone also doesn't get NEARLY as hot as it used to.
One other thing I did was to change all my accounts in the hub to sync every 15 minutes instead of push, which also seemed to help with the battery life. Hope this info helps you turn your Priv into the best phone it can be!
Click to expand...
Click to collapse
I heard that some people on Blackberry forums were reporting that T-Mobile My Account app could/is causing battery drainage. I didn't like my account app showing me notifications and went to options in that app and remove all the check marks from the there. I had no issues with battery, but as a precaution I always disable apps that I never use.
Thanks for the heads-up. Finally picked one up today and felt that it did indeed heat up quicker than it should and definitely wasn't charging as fast as I thought it should be. Hopefully this helps!
My Priv's battery has been an utter nightmare - gonna give this a shot. Have you noticed any adverse effects from disabling the app? My main concern is if BingeOn will still work. I'm okay with not being able to disable it (not a big video guy) but free music streaming is super important to me - streaming music at work constantly during an 8hr shift, in the car during my commute... yeah, I need that.
And, before anyone says anything, it's not the music streaming doing it. In fact, the battery seems almost better when I'm doing that since I've just got the phone sitting in my pocket. Wakelocks are an absolute nuisance though - "awake" time is well over 10x SoT.
Trevorq243 said:
My Priv's battery has been an utter nightmare - gonna give this a shot. Have you noticed any adverse effects from disabling the app? My main concern is if BingeOn will still work. I'm okay with not being able to disable it (not a big video guy) but free music streaming is super important to me - streaming music at work constantly during an 8hr shift, in the car during my commute... yeah, I need that.
And, before anyone says anything, it's not the music streaming doing it. In fact, the battery seems almost better when I'm doing that since I've just got the phone sitting in my pocket. Wakelocks are an absolute nuisance though - "awake" time is well over 10x SoT.
Click to expand...
Click to collapse
BingeOn doesn't require any T-Mobile bloat to run. It's handled on the network side, not on the device itself. Also, unless they recently changed something, you don't need BingeOn enabled to get free music streaming. Music streaming is free regardless.
Thanks for that. So far the Priv is doing a fine job keeping itself alive now that app is gone. Nice to know I won't be blowing past my data allowance. I'm new to T-Mobile and so far, so good. Well, other than their app destroying my phone of course.
Trevorq243 said:
Thanks for that. So far the Priv is doing a fine job keeping itself alive now that app is gone. Nice to know I won't be blowing past my data allowance. I'm new to T-Mobile and so far, so good. Well, other than their app destroying my phone of course.
Click to expand...
Click to collapse
You'll get all that bloat with any carrier
I do want to point out that the Priv does an awesome job of standby. It makes sense that a 2K screen could drain the battery quickly, but I've gone 9 hours with only 40% drain when I barely use it, so it stays alive well when you aren't actively using it. I was also streaming music the whole time, but since the screen itself was off it saved my battery.
Zer0.exe said:
You'll get all that bloat with any carrier
I do want to point out that the Priv does an awesome job of standby. It makes sense that a 2K screen could drain the battery quickly, but I've gone 9 hours with only 40% drain when I barely use it, so it stays alive well when you aren't actively using it. I was also streaming music the whole time, but since the screen itself was off it saved my battery.
Click to expand...
Click to collapse
Yep, that's been my experience. On for ~16 hours with 3hrs SoT. Not bad, really. I wouldn't mind a little more longevity but hey, that's what power banks are for.
Here's my own battery experience. I only removed the t-mobile apps and using Facebook on chrome and not the app. I'm a moderate user 2.5 hrs of on screen time!
cronojay said:
Here's my own battery experience. I only removed the t-mobile apps and using Facebook on chrome and not the app. I'm a moderate user 2.5 hrs of on screen time!
Click to expand...
Click to collapse
The screen is a killer on this device, but it shouldn't be quite that bad. Are all your BlackBerry apps up to date? Some people have to manually check for updates for some reason.
Also, I disabled every T-Mobile app except visual voicemail. No idea if that'll help or not but it's worth a shot.
Finally, how long have you had the device? Phones always seem screwy battery-life wise during the first few days, regardless of system health.
I disabled all bloatware, this phone dies WAYYYYY to fast compare to my prior note 5.
I really dont, but i'll need to trade back in this phone if I don't get this solved. A man needs a phone with a battery!
Trevorq243 said:
The screen is a killer on this device, but it shouldn't be quite that bad. Are all your BlackBerry apps up to date? Some people have to manually check for updates for some reason.
Also, I disabled every T-Mobile app except visual voicemail. No idea if that'll help or not but it's worth a shot.
Finally, how long have you had the device? Phones always seem screwy battery-life wise during the first few days, regardless of system health.
Click to expand...
Click to collapse
How about this one for a little bit over 2 weeks and so far it's been phenomenal for me 1 degrees in love with a good battery life is I disabled Facebook and I just use the web to look at Facebook so that save my battery by at least 20%.
techprint said:
I disabled all bloatware, this phone dies WAYYYYY to fast compare to my prior note 5.
I really dont, but i'll need to trade back in this phone if I don't get this solved. A man needs a phone with a battery!
Click to expand...
Click to collapse
Other than battery life, how are you liking the switch? I like but don't love my note 5. I hadn't had a note since the original version, but I'm finding again that I just don't use the spen. I'm thinking about jumping back into a blackberry with keyboard.
Sent from my SM-N920T using Tapatalk
crawldit said:
Other than battery life, how are you liking the switch? I like but don't love my note 5. I hadn't had a note since the original version, but I'm finding again that I just don't use the spen. I'm thinking about jumping back into a blackberry with keyboard.
Sent from my SM-N920T using Tapatalk
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Click to collapse
I'll take back what I previously wrote, as of yesterday I managed to get 24 hours on phone battery. at standby this phone doesn't use any sort of battery, I killed 20 percent in 40 mins on youtube though..
Going to give it a solid week, if not i'll return it and hopefully pick up the new s7 if release by then. I was on the same boat as you, got tired of the note and just wanted a switch. I'll keep checking back leaving my reviews here
techprint said:
I'll take back what I previously wrote, as of yesterday I managed to get 24 hours on phone battery. at standby this phone doesn't use any sort of battery, I killed 20 percent in 40 mins on youtube though..
Going to give it a solid week, if not i'll return it and hopefully pick up the new s7 if release by then. I was on the same boat as you, got tired of the note and just wanted a switch. I'll keep checking back leaving my reviews here
Click to expand...
Click to collapse
I'll second this - screen off, next to zero battery used. Screen on, battery tanks like crazy. I think I'm gonna stick with it though I'm tempted to give the V10 a shot - I need a tough phone and this most certainly is not.

Only get ~2 hours of on screen time - "Android System" battery drain

I am on the latest 7.0 beta, T-Mobile version, I am getting pretty frustrated. I only get ~2 hours of on screen time. Right now at 30% and Android System has used 1350 mAh and CPU total is close to 5 hours.
Attached some pictures from yesterday and basically the same exact thing - maybe one of the packages listed is killing the battery?
I know there are a lot of posts about this issue but nothing that I've found useful unfortunatlely.
Did you try a factory reset? That help me get good battery life.
Sent from my SM-G935T using Tapatalk
dogredwing1 said:
Did you try a factory reset? That help me get good battery life.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
Been thinking about doing that, but not sure why it got really bad all of a sudden. I could get 3 to 4 hours before.
I think I'll wait until the official release is out and then do a reset - hopefully it comes out soon.
Still on 6.0.1 & Android System is my #1 battery drainer.
Sent from my SAMSUNG-SM-G935A using Tapatalk
randun said:
Still on 6.0.1 & Android System is my #1 battery drainer.
Sent from my SAMSUNG-SM-G935A using Tapatalk
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I am getting pretty fed up. Thought the new updates would make it better but no go for me.
If only you got root, I strongly recommend using Myandroidtools/disable service. Samsung roms sucks pretty bad, I have never ever experienced something like battery drain on other phones. Since I disabled 80+ Google Services and some samsung bloat, android system takes about 2-4% drain after a whole day. I am using Renovate on nougat.
Looks like a lot of you are very unlucky. My battery life is superb! At the end of the day I still have ~35% battery remaining. I recharge every night regardless of how much battery I have left, so it does me just fine
amon87 said:
If only you got root, I strongly recommend using Myandroidtools/disable service. Samsung roms sucks pretty bad, I have never ever experienced something like battery drain on other phones. Since I disabled 80+ Google Services and some samsung bloat, android system takes about 2-4% drain after a whole day. I am using Renovate on nougat.
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I would strongly advise to stay away from any of those 'fancy' package disablers.
They do no good and often deteriate things. I have on average over 8hours SOT and never used disablers.
Most Samsung apps don't put any drain on the battery. It's things like Facebook etc that hog resources.
Yeah, if only i got Facebook apps installed. I have fully working locations, notifications and other stuff - most of services I disabled are feedbacks, silent loggers and stuff I dont need or use. Only corrupted app is Gmail - which I don't use.
I got sync switched on, lots of calls, auto brightness, voice assistant and usually get 5 hours SOT during my usage which isn't bad at all.
So not sure what did it, but I installed Greenify and also changed from 1080p to 1440p and I get about 3ish hours on screen time. Still terrible but will do for now.
My phone also feels faster after changing resolution back to 1440p. So weird.
Disable ubication and always on display.
hamer221 said:
Disable ubication and always on display.
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I use AOD all day, one of the reasons I got the phone. Not willing to part ways with it lol
ubication?
shahran said:
I use AOD all day, one of the reasons I got the phone. Not willing to part ways with it lol
ubication?
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I mean location. Aod takes almost 40% of battery in 24 hours.
hamer221 said:
I mean location. Aod takes almost 40% of battery in 24 hours.
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I remember Samsung saying it only consumes a couple a percentage points.
This article tested and it's nowhere near 40%. And I use the phone about 15 hours before it gets charged again so it should have a huge impact.
ww.techspot.com/amp/news/64162-tested-galaxy-s7-always-display-consumes-little-battery.html?client=ms-android-hms-tmobile-us
shahran said:
I remember Samsung saying it only consumes a couple a percentage points.
This article tested and it's nowhere near 40%. And I use the phone about 15 hours before it gets charged again so it should have a huge impact.
ww.techspot.com/amp/news/64162-tested-galaxy-s7-always-display-consumes-little-battery.html?client=ms-android-hms-tmobile-us
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Okay, stop reading useless news and try it by yourself. Phone dont go fully in doze mode with AOD on and keeps light and other sensors on like proximity to put more or less light in the aod screen. You are complaining about **** battery and I am telling you that I have tested how aod can take 40% of battery in one day. You really believe samsung? Come on...
hamer221 said:
Okay, stop reading useless news and try it by yourself. Phone dont go fully in doze mode with AOD on and keeps light and other sensors on like proximity to put more or less light in the aod screen. You are complaining about **** battery and I am telling you that I have tested how aod can take 40% of battery in one day. You really believe samsung? Come on...
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I really don't think you're right as that's not my experience either. I cited the article because usually the tech websites have some experience - my anecdotal data, or yours, doesn't carry much weight.
As posted before, my screen time has increased and keeps going up. Got near 4 hours of on screen time today. Greenify must have killed a process that was putting the CPU on overdrive and which showed up under Android System. I shouldn't have to take the time to find fixes however since Samsung and the Doze feature should be doing this already.
I appreciate your advice, no need to get upset we're just having a discussion...
shahran said:
I really don't think you're right as that's not my experience either. I cited the article because usually the tech websites have some experience - my anecdotal data, or yours, doesn't carry much weight.
As posted before, my screen time has increased and keeps going up. Got near 4 hours of on screen time today. Greenify must have killed a process that was putting the CPU on overdrive and which showed up under Android System. I shouldn't have to take the time to find fixes however since Samsung and the Doze feature should be doing this already.
I appreciate your advice, no need to get upset we're just having a discussion...
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I don't really see a discussion in the fact that AOD uses a lot of battery if you keep it on all day, it's pretty much guaranteed that AOD is the main culprit. And your own experience with your phone and its settings is worth a lot more than the experiences from some tech website. Everyone's phone/settings is different.

System service drain

I was convinced on the forums that my system service drain was regular until I took a look at my buddy's phone , he has a le s3 with 2 sim cards and his system service doesn't normally go past 80 mAh on a full charge . Something has to be wrong
This is a screenshot of my sot when I first got the phone
8 hours of SOT is really good. You can try installing Wakelock Detector to get a different perspective. Also, anything that uses accessibility services may harm battery life. Another thing you can do is go to settings-permissions-autolaunch and disable autolaunching of apps that don't need to be running all the time. You can see what apps are currently running in settings - app management. One last thing is that your signal strength isn't that great, so it may just be how it's supposed to be.
kris597 said:
This is a screenshot of my sot when I first got the phone
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I'm in the same boat as you, only I'm running OmniRom. But yeah, had 8h sot, can barely make 6 now, android system is my second biggest drain, with 2+ hours of cpu usage.
I have tried and I have found that 7.1 to 8.1 do not have the best battery life.
I personally have been aopk 6.01 and been getting great battery life.
I did do a stress test I did gaming and blasting next radio 21 minutes use only 6% of battery.
Sent from my LEX727 using xda premium
dweekie said:
8 hours of SOT is really good. You can try installing Wakelock Detector to get a different perspective. Also, anything that uses accessibility services may harm battery life. Another thing you can do is go to settings-permissions-autolaunch and disable autolaunching of apps that don't need to be running all the time. You can see what apps are currently running in settings - app management. One last thing is that your signal strength isn't that great, so it may just be how it's supposed to be.
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I've tried everything , disabled all apps in auto launch , tried it with airplane mode on , enabled background resource control . Never go past 7 hours max screen on time . My screen brightness is usually very low throughout the day
What are all of these services ? My buddy has none of these
You are running stock I take it.
Different ROMs are going different services like you show.
Sent from my LEX727 using xda premium
mchlbenner said:
You are running stock I take it.
Different ROMs are going different services like you show.
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How do I get rid of these services without root ? And these services also don't show up on my buddy's phone . Is it a le pro 3 thing ?
kris597 said:
How do I get rid of these services without root ? And these services also don't show up on my buddy's phone . Is it a le pro 3 thing ?
Click to expand...
Click to collapse
You can't
Sent from my LEX727 using xda premium
Turned on battery assistance at about 80% , battery life drastically improved
This is now ridiculous
All eui is in the rom.
I have no problem with custom roms. (Omni,Aicp,Lineageos etc.)
kris597 said:
Turned on battery assistance at about 80% , battery life drastically improved
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I don't see the big deal you have 3 hours 57 minutes on screen time and 50% battery left you will get almost 8 hour screen time on that is well above average!
Sent from my LEX727 using xda premium
Went through a hard 12 hour process , finally unlocked bootloader , installed twrp and running lineage . Going to be testing battery life
I have the same problem with Eui rom. As long as the display is turned on, the system service will exploit the battery. Nobody knows that?
There are no such problems in custom roms.(Aicp,omni vs )
lazye53 said:
I have the same problem with Eui rom. As long as the display is turned on, the system service will exploit the battery. Nobody knows that?
There are no such problems in custom roms.(Aicp,omni vs )
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I flashed lineage and I'm experiencing even worse battery , I can't be bothered to flash a new Tom and reinstall all my apps
kris597 said:
I flashed lineage and I'm experiencing even worse battery , I can't be bothered to flash a new Tom and reinstall all my apps
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Click to collapse
Flash Magisk and try Greenify4Magisk. It's gotta be some third-party app you're running, or you have a bad cellular connection. Are you getting full signal on your phone? Do you have LTE running as well?
sk8223 said:
Flash Magisk and try Greenify4Magisk. It's gotta be some third-party app you're running, or you have a bad cellular connection. Are you getting full signal on your phone? Do you have LTE running as well?
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Click to collapse
I haven't installed many apps , just the basics like Snapchat WhatsApp Twitter and Instagram . I tried to flash magisk but that would mean uninstalling super su . I normally get around 3-4 bars but I don't use cellular data . I have Greenify but it doesn't seem to be doing much
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