My battery just drained from 100% to 13% - Nokia 6 Questions & Answers

Hello guys, I have a problem
So, I charged my Nokia 6 ( with his own charger ) until it was 100%. and after that, I unplugged it from the charger.
After that I went to sleep for 8 hours and after that I went somewhere for another 6 hours ( I forgot my phone at home, didn't use it at all)
When I got home and unlocked my phone, the battery was at 13%. When I opened the battery drain history, Android System was 43% and the aplication KIK was 13%.
I just bought this phone last month and it this scared me..did someone else had this problem? Or is it a factory issue?
Yeah I admit, when I go to work, I use the phone a lot, like using facebook, messenger etc but how can I say this, in 8 hours at work, I use it and it goes from 100% battery to 30%.....
Can someone help?

I think it was before update( I.e September) I too faced this issue before updating and now it is good (but mine was 100-30 and no usage for about 12hrs or more)

harsha88reddy said:
I think it was before update( I.e September) I too faced this issue before updating and now it is good (but mine was 100-30 and no usage for about 12hrs or more)
Click to expand...
Click to collapse
well I didn't have any updates, my Nokia6 is still on 7.1.1 and in that night, I didn't have my mobile data on nore the wifi. So it was simply on idle :s but since then, the problem didn't appear...

Ok I understand it (may) happen I think u need to use a original charger

harsha88reddy said:
Ok I understand it (may) happen I think u need to use a original charger
Click to expand...
Click to collapse
I always used the original charger.

Related

Horrible battery life

My Huawei has a horrible battery life. I'm using stock rom (rooted of course) and the battery drains really fast, like 5-10% an hour even in sleep mode. I have used a battery calibration app recommended by someone here in xda, but I don't think it made any difference. My last Android phone used around 1% an hour, even with data and sync on, but with pretty much the same settings, I can hardly make it through the day with my Huawei.
So, what to do? I don't need the battery to last for days, but having to recharge twice a day at worst is just too much.
My battery drops around 7-10% overnight.
Probably a defective cell?
mine after i installed custom rom (b160) and a battery calibartion in flight mode during my sleep after 7 hours that passed and woke up it was 1% dropped and now 7 almost hours afterwards in normal mode it has dropped 7% with very light use of course...
i want to say just that with gsm active it drained 5% more than in flight mode...
so something must be going wrong , like you don't have a good signal and it uses much power to keep your connection alive and have better signal....
i must say that i have a profile with setcpu when the screen is off with min 122 and max 460...
and just for the record i think that with custom rom also mine was dropping more...
i don't know why although...
ioucorsa said:
mine after i installed custom rom (b160) and a battery calibartion in flight mode during my sleep after 7 hours that passed and woke up it was 1% dropped and now 7 almost hours afterwards in normal mode it has dropped 7% with very light use of course...
i want to say just that with gsm active it drained 5% more than in flight mode...
so something must be going wrong , like you don't have a good signal and it uses much power to keep your connection alive and have better signal....
i must say that i have a profile with setcpu when the screen is off with min 122 and max 460...
and just for the record i think that with custom rom also mine was dropping more...
i don't know why although...
Click to expand...
Click to collapse
Noticed this myself. i use spotify alot on the phone, walking, bicycling, at the gym. and it drains a whole lot of power even in offline mode. but if i set it in flight mode the phone last for hours and hours without even dropping 5-10% of power. but when gsm or data traffic is on the battery life just drains out so quickly! so it is definitly something serously wrong in this rom. Im hoping gingerbread is coming soon to this phone, so maybe all these small issues has been fixed.
I've found highly variable battery life. Sometimes it's awful, almost 50% overnight when it's sleeping on my nightstand, other times it's much better and only drops 7-10% under those conditions.
One thing is Google Maps, even when not in use it seems to suck battery like crazy if it's loaded (and it has a habit of getting loaded even when you don't run it or any apps that use it). There's a long thread on this in the Google support forums, but no sign of a fix from Google yet.
I've found doing a 'force stop' on Maps if it's running often helps, another thing is to reboot the phone after you charge it, that seems to fix it for several days sometimes, but then it starts sucking juice again for no apparent reason, so I tend to reboot it after each recharge. There can also be other apps that due to bugs can suck battery, for a while there app killer did this but the author put a fix out pretty quick and it shouldn't be an issue now.
Just noticed that there's an Android update from Huawei now available for download, maybe that'll fix some of the irritations and help with battery life; I'm off to install it!
where can you find that update? through phone's settings->check for update (in my case it says i got the latest version) or online?
My phone has been on for nearly 48 hours.. charging it right now. I played, connected to wifi, browsed the net, facebook, gmail etc.. and I really played hard on it for a few hours.
30mins ago it switched off, dead battery.. I'm quite pleased with the battery life
kytz said:
My Huawei has a horrible battery life. I'm using stock rom (rooted of course) and the battery drains really fast, like 5-10% an hour even in sleep mode. I have used a battery calibration app recommended by someone here in xda, but I don't think it made any difference. My last Android phone used around 1% an hour, even with data and sync on, but with pretty much the same settings, I can hardly make it through the day with my Huawei.
So, what to do? I don't need the battery to last for days, but having to recharge twice a day at worst is just too much.
Click to expand...
Click to collapse
Exactly the same problem here. I formatted now both the internal and external SD card, let's see if that helps.
edit: No it doesn't. The problem seems to be that my phone doesn't sleep properly. I charged it to full, then turned the screen off for one hour. App called Spart Parts shows that since last unplugged, time spent without sleeping is 36m.
it took mine 2 weeks to get to the full battery life. now i get 36-48 hours from it.
iG3 said:
it took mine 2 weeks to get to the full battery life. now i get 36-48 hours from it.
Click to expand...
Click to collapse
After 5 weeks i get about 12hrs. No GPS, no 3G. About 10min ago i took the charging cable off. Now Battery History in Spare Parts show that "Since last unplugged" time spent without sleeping is 10m 33s (99.9998%), and time spent with screen on is 3m 23s.
im thinking of buying this phone is it available in India ? also can this device be rooted n what about the custom roms ? are they available as there is nthng on XDA :'( . And what about its battery life even being 1500mah is it so awful ?
knevski said:
After 5 weeks i get about 12hrs. No GPS, no 3G. About 10min ago i took the charging cable off. Now Battery History in Spare Parts show that "Since last unplugged" time spent without sleeping is 10m 33s (99.9998%), and time spent with screen on is 3m 23s.
Click to expand...
Click to collapse
something is running background...
after i removed all these applications such spare parts and other i got 3 days with light use of course...
with screen off after 3 hours it drops 1% !
and this is fantastic for me!!!
ioucorsa said:
something is running background...
after i removed all these applications such spare parts and other i got 3 days with light use of course...
with screen off after 3 hours it drops 1% !
and this is fantastic for me!!!
Click to expand...
Click to collapse
Now after factory reset it seems that this is fixed. Over night with Wi-Fi and all sync's enabled, it took about 20% which is quite ok.
knevski said:
Now after factory reset it seems that this is fixed. Over night with Wi-Fi and all sync's enabled, it took about 20% which is quite ok.
Click to expand...
Click to collapse
The problem is back... For some unknown reason the phone doesn't go to sleep and starts to use more battery.
Battery History:
Other usage, since last unplugged:
Running (100%)
Screen on (3,2%)
Partial wake usage, since last unplugged:
Android System: Total time: 13s
Dialer: Total time: 0s
Maps: Total time: 0s
It seems that reboot helps with this every time. After reboot, running-% is 32.9 when screen on is 6.5%. It would still be interesting and helpful to know what causes this.
its an android thing
SuperDeform said:
its an android thing
Click to expand...
Click to collapse
Do you mean it's a common bug, or is it normal thing for Android to not go to sleep after few hours of using the phone?
knevski said:
Do you mean it's a common bug, or is it normal thing for Android to not go to sleep after few hours of using the phone?
Click to expand...
Click to collapse
That's not true. My battery history shows that correct(as far as I can perceive) running time.
magictwins said:
That's not true. My battery history shows that correct(as far as I can perceive) running time.
Click to expand...
Click to collapse
I get most of the time also. But after charging, at one point (after some time) for some reason the time spent without sleeping goes to 99%. The problem is, that the partial wake usage doesn't show that something is wrong. Usually restart helps, but sometimes it can be already late, because 100% running has already taken quite much of the battery.
Also, when the time spent without sleeping is 99% or 100%, the CPU is still NOT in heavy use. So something just prevents the phone to go to sleep mode, and it seems that it is not the CPU that causes it.
Lyssion said:
where can you find that update? through phone's settings->check for update (in my case it says i got the latest version) or online?
Click to expand...
Click to collapse
I got it through the phone, it was the 2.2.1 B136SP02 update. Not online at Huawei website. It doesn't seem to have improved battery life alas (or the frequent WiFi dropouts I've had since new, particularly while downloading app updates). Main feature of the update is WiFi tethering/hotspot support, at last...
What seems to have worked for me after a couple of weeks++ of REALLY crappy battery life is a battery stats wipe.
FullCharge while the phone was off. First boot in recovery, battery wipe and then i just let it run close to dry before the first charge (almost 48 hours of medium use). Note here that i am now using the charger that came with the phone because i noticed that my generic usb one had an output of 0.7A instead of the full 1A of the factory charger.
Another point arose however. Does anyone else have stability issues when battery drops below 25%? I am talking about some serious crash/reboot/lag/noradio issues.

Post 2.3.3 Upgrade Battery Life TERRIBLE

Upgraded to 2.3.3 on Thursday night, chose not to do a factory wipe so that I didn't have to reinstall apps etc. Since then I have had to charge the battery twice and have lost 50% battery in last 10 hours (whilst not using phone).
Is anyone else experiencing this problem ?
50% in ten hours doesnt seem that bad to me?
i use mine at work listening to music via BT headfones
make calls here n there and on my break times go on net and play games
and when i come home from work im on about 50% batt level
Nope updated in the morning after around 12 hrs I got 38% left
crispyduckling said:
50% in ten hours doesnt seem that bad to me?
i use mine at work listening to music via BT headfones
make calls here n there and on break times go on net and play games
and when i come home from work im on about 50% batt level
Click to expand...
Click to collapse
You obviously missed the "whilst not using the phone" bit. 50% after a days use with BT on etc I would be more than happy with.
This was without using the phone at all, no Bluetooth, no GPS, no music playing it was just sitting on a table, untouched.
MobileBritain said:
Upgraded to 2.3.3 on Thursday night, chose not to do a factory wipe so that I didn't have to reinstall apps etc. Since then I have had to charge the battery twice and have lost 50% battery in last 10 hours (whilst not using phone).
Is anyone else experiencing this problem ?
Click to expand...
Click to collapse
I have updated and have not noticed this problem. Phone 100% battery went to bed. Got up this morning 8 hours later and battery 98%.
What is in the running apps menu? Do you have a task killer? they have been known to rape batterys when auto killing. The update was supposed to have improved battery usage so this is strange.
MobileBritain said:
You obviously missed the "whilst not using the phone" bit. 50% after a days use with BT on etc I would be more than happy with.
This was without using the phone at all, no Bluetooth, no GPS, no music playing it was just sitting on a table, untouched.
Click to expand...
Click to collapse
damn i swear im going blind in my old age
must be cuz im glued to my pc or my play
Mozza2k11 said:
I have updated and have not noticed this problem. Phone 100% battery went to bed. Got up this morning 8 hours later and battery 98%.
What is in the running apps menu? Do you have a task killer? they have been known to rape batterys when auto killing. The update was supposed to have improved battery usage so this is strange.
Click to expand...
Click to collapse
No task killers, not found them necessary for a long time.
I agree this update is supposed to improve battery life, which is why I was a bit surprised to see it eating it's battery like my old X10 did on 1.6 when I first got it.
Crispyduckling, I thought it was playing with something else that made you go blind
yes but i dint really want to go into that on here
i usually save that sort of topic for spankers monthly ...ahem

Enormeous battery drain....

Hello to you all!
I'm expiriencig an hudge battery drain since 2 days.
Normaly my battery last for arround 24h. Yesterday I'v unplugged my phone at 6.30AM and till 1PM (I'v made only one call appr. 5min and 3g was on all the time - no othe use!) the battery was gone...
The same in the afternoon and today... I don't remember if the phone ingetting preety warm durrin chargin cos I'm playing or seing tether durring chargeing or sleeping. Now with turned off everything the uper part of the phone (includeing camera and screen) is getting very warm! like durring long playing games with 3G....
I belive it all began with installing the google+ app... I'v just uninstalled it and chargeing the device (every things turned off and still hot...).
Will see if it was that, cos battery stats are ok and battery usage apps arent showeing nothin suspicious...
Any suggestions? I was runnig the sam ROM and config for a longer time without problems...
Ther's another thing I forgot to say - when I'm tryeing to charge the phone while it's on it's not chargeing - the battery get's drained even faster! for egz. when it's 15% charged after 15mins under charger its 4%!!!
To know what's causing the Awake when screen is off, install Better Battery Stats and see under Wakelocks. Confirm if it is G+ or anything else.
http://forum.xda-developers.com/showthread.php?t=1179809
Regards.
Ok, just installed the app. How long do I have to wait to read the stats? and what is it abot the "G"? couldnd find this info
oofol said:
Ok, just installed the app. How long do I have to wait to read the stats? and what is it abot the "G"? couldnd find this info
Click to expand...
Click to collapse
Best thing would have to full charge it, and wait till its like 5% battery, then check the stats.
Sent from my GT-I9100 using XDA Premium App
Will do that!
Will charge it durring the night and than will wait till it's nearly gone....
It got better i think - without 3G the drain is bearly there but with 3G on it's bad... It wasn't like that before...
Could it be that installing the google+ app it activated kinda sys updates or similar?
oofol said:
Will do that!
Will charge it durring the night and than will wait till it's nearly gone....
It got better i think - without 3G the drain is bearly there but with 3G on it's bad... It wasn't like that before...
Could it be that installing the google+ app it activated kinda sys updates or similar?
Click to expand...
Click to collapse
hey mate! I've experienced a similar problem myself so if you can please post your conclusions tomorrow.. Thank you in advance!
Phone is on now since 36mins battery at 95% (aevery thing on as usual) will se what hapens...
oofol said:
Hello to you all!
I'm expiriencig an hudge battery drain since 2 days.
Normaly my battery last for arround 24h. Yesterday I'v unplugged my phone at 6.30AM and till 1PM (I'v made only one call appr. 5min and 3g was on all the time - no othe use!) the battery was gone...
The same in the afternoon and today... I don't remember if the phone ingetting preety warm durrin chargin cos I'm playing or seing tether durring chargeing or sleeping. Now with turned off everything the uper part of the phone (includeing camera and screen) is getting very warm! like durring long playing games with 3G....
I belive it all began with installing the google+ app... I'v just uninstalled it and chargeing the device (every things turned off and still hot...).
Will see if it was that, cos battery stats are ok and battery usage apps arent showeing nothin suspicious...
Any suggestions? I was runnig the sam ROM and config for a longer time without problems...
Ther's another thing I forgot to say - when I'm tryeing to charge the phone while it's on it's not chargeing - the battery get's drained even faster! for egz. when it's 15% charged after 15mins under charger its 4%!!!
Click to expand...
Click to collapse
Hi oofol!
When you have installed google+ app, have you checked "instant upload"?
It could be the problem.
Yep, done that however I can't imagine it should suck off the battery that much!
FB is working ok
try juice defender
Allready installed
It seems that it was the fould of google+.........
oofol said:
Yep, done that however I can't imagine it should suck off the battery that much!
FB is working ok
Click to expand...
Click to collapse
The problem is that when you check this option, your mobile upload all your picture to Picasa and google's server.
At this moment if you're not connect in wifi....
Becareful for those who don't wanna be caught with their bills!
I know about that - and I did want that (I'v got a plan without data limits).
The drain was almost normal today.
However I'm now connected via USB to my laptop and I'm tethering. As I connected the phone it was arround 48% of juice and now it's falling... now its 8% and falling............
Why isn't it chargeing???
I cant understand that...
So, I think I solved the issue.
Yesterday I uninstalled (I was useing ist fo a couple of weeks without any problems...) BitDefender and the phone is chargeing on tethering and the battery life seems to be normal for now
Thanks ithehappy for the tip wit BBS it helped a lot

Out of Box Note 4 doesn't last 5 hours on full charge

Good day guys
Sorry if this is the wrong section for my post, not sure with the new XDA Site where to post it. I have a 3 day old Note 4 (SM-N910H) which on a full charge doesn't last 5 hours. Now I know a lot of you guys are going to ask what ive done and what i need to check. I am not new to Android Devices and this is my 3rd Galaxy Range Phone. So what iv'e done is charged it full to 100% at 9pm Saturday night, then went to bed, disabled Mobile Data and Sync and put phone on Silent. Sunday morning I woke up at 3am and wanted to see what time it is on my phone and it was dead. I put it on charge for 5 mins and switched it on on 3% bat. This is not right! I then decided to look for apps that drain the battery and couldn't find anything, so I backed up my phone and did a factory reset/wipe to see if maybe the OS wasn't messing around ......... So Sunday evening I did the same thing, charged it full and then disabled Mobile Data, Sync and put phone on silent, same thing ..... dead phone by 5am. I don't think enabling Power saving is going to make a difference cause the screen brightness is set to Auto, I dont like the CPU performance being limited in Power Saving, but still this is way to fast battery draining for a new device. I had a look at the aplications/OS battery usage and cant find anything wrong, the screen only takes 4% ...... Ive attached a screenshot of the running apps/battery usage. Ohhhh yes and the phone already has the latest firmware update too. SO I am thinking Faulty Battery?
Aquacile said:
Good day guys
Sorry if this is the wrong section for my post, not sure with the new XDA Site where to post it. I have a 3 day old Note 4 (SM-N910H) which on a full charge doesn't last 5 hours. Now I know a lot of you guys are going to ask what ive done and what i need to check. I am not new to Android Devices and this is my 3rd Galaxy Range Phone. So what iv'e done is charged it full to 100% at 9pm Saturday night, then went to bed, disabled Mobile Data and Sync and put phone on Silent. Sunday morning I woke up at 3am and wanted to see what time it is on my phone and it was dead. I put it on charge for 5 mins and switched it on on 3% bat. This is not right! I then decided to look for apps that drain the battery and couldn't find anything, so I backed up my phone and did a factory reset/wipe to see if maybe the OS wasn't messing around ......... So Sunday evening I did the same thing, charged it full and then disabled Mobile Data, Sync and put phone on silent, same thing ..... dead phone by 5am. I don't think enabling Power saving is going to make a difference cause the screen brightness is set to Auto, I dont like the CPU performance being limited in Power Saving, but still this is way to fast battery draining for a new device. I had a look at the aplications/OS battery usage and cant find anything wrong, the screen only takes 4% ...... Ive attached a screenshot of the running apps/battery usage. Ohhhh yes and the phone already has the latest firmware update too. SO I am thinking Faulty Battery?
Click to expand...
Click to collapse
you definitely have a defected unit..return it when you can
Clash of Clans is an out-of-the-box software ?
So you installed some more apps. Maybe some of them are causing wakelocks, draining the battery.
I'd try that infamous "factory reset" and checking if battery life gets better with NO additional apps installed prior to sending back the Note.
Aquacile said:
Good day guys
Sorry if this is the wrong section for my post, not sure with the new XDA Site where to post it. I have a 3 day old Note 4 (SM-N910H) which on a full charge doesn't last 5 hours. Now I know a lot of you guys are going to ask what ive done and what i need to check. I am not new to Android Devices and this is my 3rd Galaxy Range Phone. So what iv'e done is charged it full to 100% at 9pm Saturday night, then went to bed, disabled Mobile Data and Sync and put phone on Silent. Sunday morning I woke up at 3am and wanted to see what time it is on my phone and it was dead. I put it on charge for 5 mins and switched it on on 3% bat. This is not right! I then decided to look for apps that drain the battery and couldn't find anything, so I backed up my phone and did a factory reset/wipe to see if maybe the OS wasn't messing around ......... So Sunday evening I did the same thing, charged it full and then disabled Mobile Data, Sync and put phone on silent, same thing ..... dead phone by 5am. I don't think enabling Power saving is going to make a difference cause the screen brightness is set to Auto, I dont like the CPU performance being limited in Power Saving, but still this is way to fast battery draining for a new device. I had a look at the aplications/OS battery usage and cant find anything wrong, the screen only takes 4% ...... Ive attached a screenshot of the running apps/battery usage. Ohhhh yes and the phone already has the latest firmware update too. SO I am thinking Faulty Battery?
Click to expand...
Click to collapse
What's "WhatsApp" doing with your battery? I use WA a lot, and it's not consuming that much!
Thanks guys, I manged to solve the problem. I also thought of returning the device (more likely Battery). Here is what I did. I disabled fast charge, then let the phone run completely dead like till it shuts down, then i boot it again until it shuts down again making sure the battery is completely drained. Then I charge the phone on a normal charge (keeping the phone switched off) till its fully charged (green Light) and I sort of overcharge it for another hour, which on normal charge plus extra hour is about 3 hours +-. Now my phone after his last charge is running more than 16 hours and now on 52% still playing Clash of clans, using Whatsapp a lot, BBM etc
Maybe spread the word cause this has surely fixed the charge on the battery

Note 4 battery problem after flashing some custom roms

Hi everyone, i have problem with my note 4, battery drops from 11 % to 3% very fast and charges after 85% very slow.. this problems started 2 days ago when i flashed dn5 custom rom i thought it was rom problem and flashed sixperience rom but still i have same issue also i tried battery calibration but again.... what can i do???? and my screen on time is only 3 hour. please help me, thanks.
Have you checked what's eating away at your battery? Settings => Battery (Here you should be able to see if anything is causing a drain).
If the settings screen doesn't seem to show anything, you could try BetterBatteryStats (This app will be able to tell you everything that's going on regarding running processes, wakelocks,... You should give it a day or so from a fully charged battery.)
And if even BBS doesn't show anything, I'd flash the stock firmware again (And check if it isn't the battery).
-RFB
RealFreddyBananas said:
Have you checked what's eating away at your battery? Settings => Battery (Here you should be able to see if anything is causing a drain).
If the settings screen doesn't seem to show anything, you could try BetterBatteryStats (This app will be able to tell you everything that's going on regarding running processes, wakelocks,... You should give it a day or so from a fully charged battery.)
And if even BBS doesn't show anything, I'd flash the stock firmware again (And check if it isn't the battery).
-RFB
Click to expand...
Click to collapse
thanks for reply , well im checking that stats regulary and nothing is unusual there. even on stock rom i had only 3 hour screen on time :| but now my main problem is that after root + greenify and etc i have again 3 hour on screen and battery % is abnormal ( i mean fast dropping from 11% to 3% and slow charge after 85%) i have to change battery or i can fix it somehow?
iGateways said:
thanks for reply , well im checking that stats regulary and nothing is unusual there. even on stock rom i had only 3 hour screen on time :| but now my main problem is that after root + greenify and etc i have again 3 hour on screen and battery % is abnormal ( i mean fast dropping from 11% to 3% and slow charge after 85%) i have to change battery or i can fix it somehow?
Click to expand...
Click to collapse
Well, in all fairness, mine is running CM 12.1, and SOT is a bit under 4hrs. Which isn't fantastic either. Quickcharge does slow down a bit after a certain percentage. You could try a new battery, but might be a waste of money.
I'm afraid I can't help you any further, maybe someone else can.
-RFB
RealFreddyBananas said:
Well, in all fairness, mine is running CM 12.1, and SOT is a bit under 4hrs. Which isn't fantastic either. Quickcharge does slow down a bit after a certain percentage. You could try a new battery, but might be a waste of money.
I'm afraid I can't help you any further, maybe someone else can.
-RFB
Click to expand...
Click to collapse
ok thanks now another issue i have :| im chaging my phone its turned off and showed me 100% i turned it on and showing me 90%. :|
Same issue right here... I've been told it is a battery problem. People recommended me to change my battery.
bryanstevecl said:
Same issue right here... I've been told it is a battery problem. People recommended me to change my battery.
Click to expand...
Click to collapse
did u change ur battey? im going to buy anker battery as i know they have good ones
I am facing exactly the same problem .. I don't think buying a new battery will solve this problem.
My mobile is charging by AC very very slow and sometimes it stuck at certain percentage for hours and I tried many things but I am still facing this problem... While recharging if I removed the battery and put it again, the phone shows me that it is 100% while it was not 100% at all.
I wish someone can help us about this problem or if any of u guys tried a new battery and the problem has been solved, so please feed us back in here
Any updates!?
dolceka said:
Any updates!?
Click to expand...
Click to collapse
well after 3 4 days (i mean after flashing sixperience rom) everything is ok. discharge to 0% then wait and full charge + calibrate battery may fix issue. but still dont like screen on time. only up to 3.5 4 hours
That sounds weard...
I mean the good thing is we could change the battery.
I have a feeling this is not battery issue. it's exynos + apps running on the background. Try to root + disable unnecessary apps (maybe Android 4.4 Would give you higher SOT). I had Note 3 previously and SOT was at the level of around 6 hrs (snap processor) - now on exynos it's around 4 hrs on stock firmware (5.1.1).

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