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[Q] How do I fix my terrible S6 battery life?

Hi guys. I just created an account to these forums. I've used them before when rooting a previous phone. I have a problem with my new S6. I got it about three weeks ago, and I love it. The only problem I have is the incredibly short battery life. There has to be a problem with my phone, because I'll have a battery life of about 5 hours on a good day, but usually 2 or 3. The phone will get mildly hot, and all battery will drain rapidly. I will regularly lose ~40-50% in an hour after it starts heating up. I've been simply dealing with it for a while, after a failed attempt to find a solution on Google. I regularly close my apps, and I even have powersaver on at all times now. Last night, I closed all apps, then restarted my phone. It was at 98 when I fell asleep. I woke up 9 hours later and it was dead. I have checked the battery info a couple times, but I don't ever see anything rapidly draining battery. Could this be a hardware problem?
I have a Verizon S6 regular. Model number SM-G920V

Try to calibrate your battery first.

I suggest reinstalling the software using Samsung's smart manager and updating to 5.1.1, I never had your issues but noticed a big improvement with battery life. I'm sure you have a rogue app somewhere running havoc. There's also a lot of things you can do to improve battery life after reset, like disabling background data on certain apps that you need need constantly connecting and using data like Facebook when it's not even in use. Just play around with your phone to know the ins and outs
Sent from my SM-G920T1 using Tapatalk

sol_671 said:
I suggest reinstalling the software using Samsung's smart manager and updating to 5.1.1, I never had your issues but noticed a big improvement with battery life. I'm sure you have a rogue app somewhere running havoc. There's also a lot of things you can do to improve battery life after reset, like disabling background data on certain apps that you need need constantly connecting and using data like Facebook when it's not even in use. Just play around with your phone to know the ins and outs
Sent from my SM-G920T1 using Tapatalk
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Click to collapse
Thanks for the suggestion. Where is the Smart Manager? I Googled it, and found a thread saying
It is included on the phone, however there is no way to access it that I've found. You can find it under Application Manager - ALL. Scroll down to Smart Manager and select it, you will find that the app is running but we are cannot access it and the DISABLE button is grayed out. My guess is that Verizon wants us to use their My Verizon Mobile app instead of Smart Manager. I heard that AT&T did the same thing.
Click to expand...
Click to collapse

http://www.samsung.com/us/smart-switch/
My bad it's actually called smart switch. I just got brainwashed seeing it that widget all the time on my homescreen.
https://youtu.be/y8AZyalTf5Y Here's a video (tutorial)
Follow the Link Of the Video if you can't find the link for the Smart Switch download. Hope this helps

I suggest wiping the cache. I was experiencing a similar issue. After wiping the cache, consumption return to normal.

davidfoong said:
Hi guys. I just created an account to these forums. I've used them before when rooting a previous phone. I have a problem with my new S6. I got it about three weeks ago, and I love it. The only problem I have is the incredibly short battery life. There has to be a problem with my phone, because I'll have a battery life of about 5 hours on a good day, but usually 2 or 3. The phone will get mildly hot, and all battery will drain rapidly. I will regularly lose ~40-50% in an hour after it starts heating up. I've been simply dealing with it for a while, after a failed attempt to find a solution on Google. I regularly close my apps, and I even have powersaver on at all times now. Last night, I closed all apps, then restarted my phone. It was at 98 when I fell asleep. I woke up 9 hours later and it was dead. I have checked the battery info a couple times, but I don't ever see anything rapidly draining battery. Could this be a hardware problem?
I have a Verizon S6 regular. Model number SM-G920V
Click to expand...
Click to collapse
98% gone during 9 hours of sleeping? wow...
1) Do the factory reset, full wipe and see if its gonna get any better.
2) If still the same problem, then download latest firmware for your model from sammobile.com http://www.sammobile.com/firmwares/database/SM-G920V/ and flash it via Odin / Download mode
If still the same issue, then contact samsung for the warranty :X

davidfoong said:
Hi guys. I just created an account to these forums. I've used them before when rooting a previous phone. I have a problem with my new S6. I got it about three weeks ago, and I love it. The only problem I have is the incredibly short battery life. There has to be a problem with my phone, because I'll have a battery life of about 5 hours on a good day, but usually 2 or 3. The phone will get mildly hot, and all battery will drain rapidly. I will regularly lose ~40-50% in an hour after it starts heating up. I've been simply dealing with it for a while, after a failed attempt to find a solution on Google. I regularly close my apps, and I even have powersaver on at all times now. Last night, I closed all apps, then restarted my phone. It was at 98 when I fell asleep. I woke up 9 hours later and it was dead. I have checked the battery info a couple times, but I don't ever see anything rapidly draining battery. Could this be a hardware problem?
I have a Verizon S6 regular. Model number SM-G920V
Click to expand...
Click to collapse
You might try a Sprint fix since your Verizon S6 has CDMA too. Since you've got a Verizon phone, this setting may be somewhat different. On my Sprint S6, I changed the setting under 'Mobile Network', then 'Network Mode' to LTE/CDMA' instead of 'Automatic'. That made my battery life much better. I think I remember a friend with a Verizon S6 and it had 'Global' instead of 'Automatic'. So change it out of 'Global' mode and see what happens.

Why do I have terrible battery life?

I just got my Z5 a few days ago, and the battery life is downright AWFUL. With stamina mode on, my phone drains about 1% every minute or two, just while browsing the web. What is going on here?
Here's a screenshot: http://i.imgur.com/uDv2hIs.png

Me too, it's a total letdown. Had 3 hours SOC and around 9-10 hours overall before it conked out on me yesterday

Uclydde said:
I just got my Z5 a few days ago, and the battery life is downright AWFUL. With stamina mode on, my phone drains about 1% every minute or two, just while browsing the web. What is going on here?
Here's a screenshot: http://i.imgur.com/uDv2hIs.png
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Click to collapse
Looks like your device is spending a lot of time switching networks which is battery intensive. Are you in a poor signal area?

augie7107 said:
Looks like your device is spending a lot of time switching networks which is battery intensive. Are you in a poor signal area?
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Click to collapse
Occasionally, but not all the time. The battery drain was still this bad even when I was connected to my WiFi signal at home

Uclydde said:
Occasionally, but not all the time. The battery drain was still this bad even when I was connected to my WiFi signal at home
Click to expand...
Click to collapse
Try airplane mode and see if it improves. This will allow you to use WIFI but halt network search and switching. Check battery stats after a while to see if that helps. Of course, you will get no network dependent communications while in airplane mode so take that into consideration prior to testing. Battery performance will settle down after a few weeks as well but you certainly seem to have a major drain problem and testing will help you locate the cause.

augie7107 said:
Looks like your device is spending a lot of time switching networks which is battery intensive. Are you in a poor signal area?
Click to expand...
Click to collapse
augie7107 said:
Try airplane mode and see if it improves. This will allow you to use WIFI but halt network search and switching. Check battery stats after a while to see if that helps. Of course, you will get no network dependent communications while in airplane mode so take that into consideration prior to testing. Battery performance will settle down after a few weeks as well but you certainly seem to have a major drain problem and testing will help you locate the cause.
Click to expand...
Click to collapse
All right, thanks. I'm gonna try that and report back here later today.

Okay, airplane mode hasn't helped much at all. I'm still draining 1% every minute or two.

Uclydde said:
Okay, airplane mode hasn't helped much at all. I'm still draining 1% every minute or two.
Click to expand...
Click to collapse
That is truly strange. Any running apps killing it? I just streamed a two hour movie and lost 22%. I read somewhere that the pre-installed AVG was a battery hog. I couldn't tell you because I uninstalled it as soon as I booted for the first time. Are you still running it? That may be the next test.

augie7107 said:
That is truly strange. Any running apps killing it? I just streamed a two hour movie and lost 22%. I read somewhere that the pre-installed AVG was a battery hog. I couldn't tell you because I uninstalled it as soon as I booted for the first time. Are you still running it? That may be the next test.
Click to expand...
Click to collapse
Nope, I uninstalled it immediately too.

Only other suggestion is factory reset or repair firmware both if which are a PIA.

augie7107 said:
That is truly strange. Any running apps killing it? I just streamed a two hour movie and lost 22%. I read somewhere that the pre-installed AVG was a battery hog. I couldn't tell you because I uninstalled it as soon as I booted for the first time. Are you still running it? That may be the next test.
Click to expand...
Click to collapse
augie7107 said:
Only other suggestion is factory reset or repair firmware both if which are a PIA.
Click to expand...
Click to collapse
Yeah, I thought it would come to this.

Uclydde said:
Yeah, I thought it would come to this.
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Click to collapse
Have you looked at your Google account settings to see if everything is syncing properly? I have seen this before when someone had an error while trying to sync photos to their Google account, demolished their battery until they went into account settings and unchecked whatever it was that was syncing constantly.
Also make sure you have opted out of Google's location history thing in Google maps where it tells you everywhere you've been on any given day, that can wipe your battery as well. Lastly try turning off the xperia protection that allows you to remotely deactivate the phone, just make sure you don't lose it in the meantime !

I got a Z5 the day it came out and it has done pretty well on battery life, at least until I installed Facebook and Messenger. When I uninstalled the two of them, the battery life returned to pretty good. With Facebook and Messenger the battery was draining extremely quickly. I unlocked the bootloader the day I got the phone and am waiting for TWRP as root will sort a lot of this out.

After 3 Days, i looks like a normale Day use by me around 50% battery. I have allthetime Bluetooth and Wlan on. Whatsapp and Gmail sync. I use my Phone usually for streamming musik over bluetooth around 2h hours, read news and message (Whatsapp) around 2h hours, play some games around 30minutes and some Calls around the same time. My "old" Z1 i had usually to charge ones during the day and of course during the night. So im happy with the battery time @ z5.

redandblack1287 said:
Have you looked at your Google account settings to see if everything is syncing properly? I have seen this before when someone had an error while trying to sync photos to their Google account, demolished their battery until they went into account settings and unchecked whatever it was that was syncing constantly.
Also make sure you have opted out of Google's location history thing in Google maps where it tells you everywhere you've been on any given day, that can wipe your battery as well. Lastly try turning off the xperia protection that allows you to remotely deactivate the phone, just make sure you don't lose it in the meantime !
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Click to collapse
Okay, I just turned off automatic Google photos backup, and Google's location history setting was already off. I also turned off my Xperia (the thing that lets me remotely deactivate the phone). Let's see if it works.

Yeah, its still draining fast. In case you're wondering, I keep my screen at half brightness. You can look at the photo I attached.

Update?
Did you ever resolve the issue? I'm getting similar battery life and am not happy about it.

This may be a noob-ish suggestion and one that the phone industry claims isn't necessary anymore, but have you tried "calibrating" the battery by charging it to 100 and completely draining it to the point where the phone won't turn on 2 times and then fully charging it a 3rd time? It may be an old, unnecessary habit, but I've done this every time I get a new battery (or phone) and I usually have really good battery life for the first year - year and a half. The one device I failed to do this on was my Xperia z2 tablet and it suffered for it (i think) although that could just be my prejudice and confirmation bias speaking.

- others suggest NOT to fully drain your phone's battery because you might have troubles turning it on.

Did you by any chance have "Glove Mode" enabled in Settings < Display? It seems that your screen is the culprit. Try disabling "Smart backlight" if you have it enabled and "Tap to wake up".
From the screenshot you posted earlier (History details) we can see that even when the screen is off the wifi is on and the phone isn't actually sleeping. So you got a wakelock on your hands that uses WiFi and doesn't let the phone sleep.
In WiFi settings under advanced (Wifi< Three dots, top right< Advanced) do you have wifi as always on? Change it to "Only when plugged in", also disable "Scanning always available" in the same menu.
Any chance we can get a list of apps you have installed yourself on your phone?

G930W8 Battery problem

Hello all, so as the titles states, i have a G930W8, bought it like 5 day ago, and it has a battery bug I think, ever since the XAC update, my phone shows up 10 hours or remaining battery, even at 100% and it drains a lot, I made a factory reset but it didn't work, before the update it showed 20+ hours, and it didn't drain that fast, now 3 hours and it's like 55%, so i wanted to know if really there is a bug or it's just me thaank you all

Do a factory reset, and the battery bug is a myth, its probably some app that is draining the battery. Download cpu spy and see if the phone is going into deep sleep, probably it isn't.

@peachpuff okay i'll do that asap, I've already done a factory reset yesterday, but is it normal 10 hours at 100% ? Where as other poeple (and even I before the update and all) get more and faar more?

No its not normal, my phone lasts 2 days before i charge it, some app must be keeping your phone up.

@peachpuff so here are the states of last 2 hours, and i charged before installing the app, and also before this bug i was in a trip, my phone wasn't charged t was like 30% or 40% and i used it all along the trip and it turned off then i charged it without turning it on, when it was 100% i turned it on and tjen i saw the 10 hours, so that's all that happened after the update. And thanks for your help

Pls update the settings to put all ur apps in power save mode.
Sent from Samsung S7 (930FD)

Well, okay i've done that, will see how it will perform... hope it's not a hardware related problem

loubar22 said:
Hello all, so as the titles states, i have a G930W8, bought it like 5 day ago, and it has a battery bug I think, ever since the XAC update, my phone shows up 10 hours or remaining battery, even at 100% and it drains a lot, I made a factory reset but it didn't work, before the update it showed 20+ hours, and it didn't drain that fast, now 3 hours and it's like 55%, so i wanted to know if really there is a bug or it's just me thaank you all
Click to expand...
Click to collapse
Its a known bug after the last update I think. Just restart your phone after every time you charge it.

Travis Bickle said:
Its a known bug after the last update I think. Just restart your phone after every time you charge it.
Click to expand...
Click to collapse
Well that did nothing, I restarted two times and nothing, I am far from my computer right now I can't do a downgrade with odin, so I guess I have no choice than wait now

loubar22 said:
@peachpuff so here are the states of last 2 hours, and i charged before installing the app, and also before this bug i was in a trip, my phone wasn't charged t was like 30% or 40% and i used it all along the trip and it turned off then i charged it without turning it on, when it was 100% i turned it on and tjen i saw the 10 hours, so that's all that happened after the update. And thanks for your help
Click to expand...
Click to collapse
What apps did you install after doing a factory reset? Where you using maps? Try disabling gps.

peachpuff said:
What apps did you install after doing a factory reset? Where you using maps? Try disabling gps.
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Click to collapse
Well basic things candy crush, csr racing 2, messenger, uuuh i think that's all. And right after the factory reset, the battery states were loading, i ve waited one day and it showed me 10h, well i think it's this update that did this...

loubar22 said:
Well basic things candy crush, csr racing 2, messenger, uuuh i think that's all. And right after the factory reset, the battery states were loading, i ve waited one day and it showed me 10h, well i think it's this update that did this...
Click to expand...
Click to collapse
Facebook messenger? Uninstall everything and start from scratch, don't install any apps for a day or two and see how it goes, there's no way the update is draining your battery, its an app that's trying to sync, or possibly one of your accounts can't sync.

peachpuff said:
Facebook messenger? Uninstall everything and start from scratch, don't install any apps for a day or two and see how it goes, there's no way the update is draining your battery, its an app that's trying to sync, or possibly one of your accounts can't sync.
Click to expand...
Click to collapse
Alright i will do that and we'll see what would happen, and ultimatly if the problem remains what shall I do next? (Well except a complete reinstall of the firmware with odin or a previous one, cause I can't now)

loubar22 said:
Alright i will do that and we'll see what would happen, and ultimatly if the problem remains what shall I do next? (Well except a complete reinstall of the firmware with odin or a previous one, cause I can't now)
Click to expand...
Click to collapse
If u still have this problem which again is usually 99% an app then yes use often and either flash the U bllatfree firmware or try your firmware again.
But I do agree it's probably something syncing that either can't, or is taking forever to do or, an app misbehaving. Let us know.
Sent from my Nexus 5 using Tapatalk

​
peachpuff said:
Facebook messenger? Uninstall everything and start from scratch, don't install any apps for a day or two and see how it goes, there's no way the update is draining your battery, its an app that's trying to sync, or possibly one of your accounts can't sync.
Click to expand...
Click to collapse
So after going back home, i ve flashed the stock firmware and did what you said, i let the phone unused for a couple of hours and when i checked the battery it was working as it should thank you all for your support i appreciate it

Rapid battery drain and weird GSam results! :(

Hey everyone,
It's been a while since I posted on the forum since although I wasn't overly happy with my battery life, it wasn't giving me too many problems. However the last couple of days have been a nightmare! For the record, my phone is not rooted.
I've attached some screen shots which I took on the fly, but I've been getting some really weird results from GSam. Since the 500% result I've reset the cache and the other images are what the battery is currently using.
However since its draining so fast I can barely see myself able to go anywhere without a charger!
I usually leave wifi and 4g off overnight anyway so when I woke up earlier I was surprised to see it with a 10% drain from doing absolutely nothing. I had to put it into power saving mode last night as I needed my alarm for the morning and was worried the phone would drain too quickly.
As far as I can tell the phone is sometimes entering deep sleep and sometimes not. It wasn't at all last night and isn't currently either. I really have no idea what the problem is and wanted to feel out some ideas before I factory reset the phone for the second time. I kind of wanted to avoid it if poss but am beginning to think it might be the only option. I'm also now worried there's something wrong with the battery
Any advice would be greatly appreciated!

microserfs said:
Hey everyone,
It's been a while since I posted on the forum since although I wasn't overly happy with my battery life, it wasn't giving me too many problems. However the last couple of days have been a nightmare! For the record, my phone is not rooted.
I've attached some screen shots which I took on the fly, but I've been getting some really weird results from GSam. Since the 500% result I've reset the cache and the other images are what the battery is currently using.
However since its draining so fast I can barely see myself able to go anywhere without a charger!
I usually leave wifi and 4g off overnight anyway so when I woke up earlier I was surprised to see it with a 10% drain from doing absolutely nothing. I had to put it into power saving mode last night as I needed my alarm for the morning and was worried the phone would drain too quickly.
As far as I can tell the phone is sometimes entering deep sleep and sometimes not. It wasn't at all last night and isn't currently either. I really have no idea what the problem is and wanted to feel out some ideas before I factory reset the phone for the second time. I kind of wanted to avoid it if poss but am beginning to think it might be the only option. I'm also now worried there's something wrong with the battery
Any advice would be greatly appreciated!
Click to expand...
Click to collapse
Try debloating stock rom, use free debloater from XDA (You dont need root to use it). I've uploaded my list of debloated apps as reference, double check what You'r using and if You'r not sure what app does what try google-ing it.
You can also try disabling stock Chrome browser and install Chrome Beta (I've been using it for few years and never had any problems with it)
Also beware of disabling Samsung Store etc. as some members of XDA pointed that after disabling it, it won't work untill factory reset.
Check my previous posts, I've uploaded screenshots of my battery life with debloated rom from this list.

Does it work on Mac? I don't have a Windows computer. I've not done this sort of thing before, is it easy to do? :/
I'll look up chrome beta but I don't know if it's anything to do with that since it's pretty bad even when I'm not using anything. I wish I could tell what was rinsing my phone battery. Maybe I should attempt to root it after all.

XZ 41.3.A.2.128 excessive battery drain

Anyone experiencing excessive battery drain with the May patch update? Android system drains the battery too much. I just reset my phone 2 days ago, installed my usual apps, updated the system and then this happens now. Any fix on this?

Hello,
It's actually a well known problem in the community
1. I have submitted a report to Sony and request them to release a software update to fix the Kernel
- which means that our best chance here is to hope it is fixed with an update, the root cause is the Kernel not being optimized
2. I am on the verge of snapping this phone in half as I asked around the community and received no answers , been trying to fix this for 1 year straight

shadowhunter20 said:
Any fix on this?
Click to expand...
Click to collapse
Out of the blue: A factory reset could help.
You definitely have a problem that your phone does not idle (look at my screenshots (v ..128):
idle (Ruhezustand) should always be in the top three).
One of your messengers might the culprit.
Try to disable them all and switch them on one after another to find a possible culprit.

Hi,
I too have these issues. Did you manage to workout which app was at fault?

Yes, another case here. We are still investigating the problem and checking if it's some app or system itself. Most of battery was used by android system and battery was empty in 11 hours.
Problems started with 41.3.A.2.128.

So is it worth updating?

Wheelie74 said:
Yes, another case here. We are still investigating the problem and checking if it's some app or system itself. Most of battery was used by android system and battery was empty in 11 hours.
Problems started with 41.3.A.2.128.
Click to expand...
Click to collapse
In our case problem was either facebook or whatsapp. Both remove/disabled and now battery lasts as always.

Yes, it is horrible!! I woke up at 7 am, took my phone off the charger and never made a call, or even turned on wifi. I came back from being outside around 11:30 and I was down to %34!! Without the phone having done nothing but sit there and recieve 2 missed calls and 5 text messages!! I usually get 2-3 days on a charge with my XZS depending what I am doing. Needs to be fixed and fast!!!!

Dont factory reset, because the battery issue will not go away for rom issues.
But the "Messages" app do look suspicious for 5%.
There are some devs like to tell people factory reset for everything first and even reset for regular stock rom updates.
Its a bit excessive, like formatting Windows for every time it crashes or even for every Windows updates... Unless you enjoy restoring data & apps.
Should try something to troubleshoot and fix it first before resetting, so we know whats wrong.
The battery drain on idle is slightly better after a week, but we still have to wait and see.

i have problems too, with last existenz with this version battery its a joke