yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy S6] NJGSII:
Battery today has been stellar. With the phone sitting in my pocket at work I had a .3% per hour drain. Never got that low whilst being on LTE on any phone till now. Pretty awesome how efficient LTE radios have become. FYI , I do have Google now disabled but with location fully on.
[T-Mobile Samsung Galaxy S6] greyhulk:
.3% or 3%? Because I'm getting around 3%.

.3 seems a little to low to be believable unless you have literally everything turned off.
[T-Mobile Samsung Galaxy S6] atoy74:
Since disabling VoLTE and wifi calling I've gotten 5.5hrs of standby with 81% remaining. That pretty much matches everyone's 3% estimate
[T-Mobile Samsung Galaxy S6] laureanop:
Mine is .8 - 1 % per hour on two bars of LTE with two gmail, Twitter ,Facebook,weather synching and high accuracy location on

---------- Post added at 01:42 PM ---------- Previous post was at 01:42 PM ----------

No complaints for me in that area
[T-Mobile Samsung Galaxy S6] NJGSII:
Couldn't believe it myself but yeah this thing is idling nicely. I unplugged my phone at 11am today and as I type with light usage since I'm working im at 92%. WiFi calling, VOLTE, and Google now disabled but with location otherwise on. Using GPS, WiFi and cell towers for location.
[T-Mobile Samsung Galaxy S6] NJGSII:
Here's some proof.

With the other phones I've owned with similar usage, battery hasn't been as good.
[T-Mobile Samsung Galaxy S6] joshnichols189:
Unfortunately my phone is still having issues going into deep sleep :/ I've factory reset via ADB twice, blocked popular wake up services with App Ops, and disabled a few services as well. It just sits at 400mhz.
[T-Mobile Samsung Galaxy S6] bubblebuddyi:
Yeah I just can't beat it. Full service most of the time, sitting at 64% with an hr screen on time. I unplugged it around 94%.

I even disabled LTE because I noticed I bounce a lot between 4G and LTE. Didn't do much
[T-Mobile Samsung Galaxy S6] kirbo20:
I have terrible battery life as well. I've had to charge this thing 4 times today because of the rapid battery drain. 10%-15% every 30 minutes, using it or not. I've factory reset, I am 100% stock. I've tried turning WiFi off, I've tried using only 4G, disabling LTE nothing makes a difference. Very disappointed, probably going to return. Total of maybe 2hrs screen on time.
[T-Mobile Samsung Galaxy S6] nalaar:
WiFi calling and Volte off, really worked for me, after a 10 hour day of lite used. I'm still at 80% thanks for the heads up guys..
[T-Mobile Samsung Galaxy S6] greyhulk:
It could be an app. This thing seems to be extra sensitive to rogue app drains. Android Wear and Spotify we're doing that to me before I removed them. It won't always show up in your battery stats and if it does, it won't be obvious. Google Now could also be the issue.

Sent from my SM-G920T
[T-Mobile Samsung Galaxy S6] atoy74:
I think disabling Google Now, Android Wear, LTE, etc have diminishing returns. All those services are on for me and I'm still in the 3% an hour range. The big impact is disabling VoLTE and wifi calling.

I don't see the purpose of killing every smart feature on your expensive smartphone
[T-Mobile Samsung Galaxy S6] ualwayslose:
Hey guys, Idk if this is the exact fix for me, but with Wifi Calling disabled and VoLTE i was still getting some bad drain, even when phone had screen off. I noticed that with GSAm I was still getting Wifi Usage so I turned off Allow always scanning which is used for the location purposes. Also I found that in the Wifi Calling settings, even though it was disabled, choosing Network Preferred seemed to really fix the drain issue. I used to get really bad drain at night, I literally got 1% discharge after 7 hours of sleep.

Hope this helps.
[T-Mobile Samsung Galaxy S6] AMartin777:
Wi-Fi Calling selections

Greetings all. I, like all of you, have been experiencing a severe battery drain from the "Cell Standby" issue. I realize this is the Galaxy S6 General forum but I wanted to share my experiences in the hope it would help. I am actually on an LG G3 (T-Mo) and just upgraded to Lolly via the LG PC tool. After upgrading, I did a factory reset but still found the drain to be crazy due to a lack of signal at my home. After reading posts here, I tried the VOLTE off and found it did help some. The biggest result though, by far, has been under the wi-fi calling/Connection Preferences settings. I have switched to the "Never Use Cellular Network" option and it has solved the "Cell Standby" drain issue completely. :victory: I have wi-fi calling active and it is working through my connection without issue. I even have VOLTE back on. Of course, I have to remember to switch wi-fi calling off when I leave the house to get calls through cell but not a huge deal for me.

I hope this helps everyone!

EDIT: Of course, this is just turning the cell radio off probably (like being in airplane mode) but it's something. :/
[T-Mobile Samsung Galaxy S6] greyhulk:
I don't think you understand. I was getting severe battery drain even after a wipe and turning off VoLTE until I removed Android Wear , turned off Google Now, and removed Spotify.

Normally, I'd agree with you, but in my case, that's what it took to get it to stop draining at a rate of around 8%/hr.
[T-Mobile Samsung Galaxy S6] bubblebuddyi:
Last night I factory reset through the recovery menu and wiped cache afterwards. Upon first boot, turned off VOLTE, WiFi calling, and selected network preferred. If that doesn't work, then I don't know what will.
[T-Mobile Samsung Galaxy S6] Japultra:
Not sure if this will help anyone but it definitely won't hurt. First of all, I'm on a G3 (Android 4.4.2), but I have noticed that Cell Standby (and one other service which I can't recall correctly at this point - Google Services?) will pop up to the first or second place in terms of using the most battery after I've been on the tube (London subway) for some time.

Screen will become the 3rd most battery-hungry usage. The caveat though is that this reading isn't accurate. Although the screen will say it uses a percentage that is sometimes in the single digits, the battery doesn't drain accordingly - meaning I can still get my normal SoT even with the battery stats saying my screen has only used, say 9% of the battery and cell standby is using 30%.

This is a bug I have noticed when I'm without signal for a bit. So, take it for what it's worth. Hopefully it can help in figuring out what is causing the drain?
[T-Mobile Samsung Galaxy S6] greyhulk:
So, I'm losing about 5%/hr today with little to no use. As far as I can see in both the native battery stats and GSAM, there's no real reason for it. It doesn't help that I'm using it side-by-side with my iPhone 6 Plus, which uses almost no battery at idle. I have come to accept a certain amount of idle drain on Android, but sometimes it drives me mad to know that the battery is going down whether I use it or not. Now I'm starting to wonder if my Note 4 was this bad and just had a larger battery (so more juice left overall), or if there really is something up with this phone.

Love the hardware, but I feel like something is seriously wrong with the software. I'm not hating, just frustrated. This should be the best Android phone you can buy, but right now the battery is killing it for me.
[T-Mobile Samsung Galaxy S6] KevinNuhWin:
I managed to fix the cell standby issue but now what is really draining my battery is Google Services. It's taking up 23%, is that normal?
[T-Mobile Samsung Galaxy S6] jzero88:
Really though??? I'm getting great battery life but wtf is up with Google services And android os?
[T-Mobile Samsung Galaxy S6] joekiv:
What Android Version

I have only had this phone for two days and haven't seen battery issue as of yet. My phone came with version 5.0.2 and there is an update available, which I haven't done. Is there anyone here that is having the battery drain issue and has NOT updated?
[T-Mobile Samsung Galaxy S6] Quickvic30:
Same here but have the same issue with google play services.
[T-Mobile Samsung Galaxy S6] greyhulk:
Those have been the top 2 on every Samsung phone and Tablet I have owned over the last few years. I think their screens are more efficient, so they don't rank as high in the battery stats.

Sent from my SM-G920T
[T-Mobile Samsung Galaxy S6] jzero88:
I see, haven't had a samsung since GS4 so it's been a while. Hopefully once source and some devs get involved we can see some improvements ?
[T-Mobile Samsung Galaxy S6] greyhulk:
Yeah. I can confirm that it's exactly this way on the Tab S 10.5, GS5, Note 4, and Tab Pro 8.4. It may have been like this on my Note 3 as well, but it has been a while since I had that phone.
[T-Mobile Samsung Galaxy S6] JASYNXXIII:
Battery Usage

Can you go to the settings on your device, open the battery section and scroll down to take a screenshot of what programs are using battery life?

I would be interested to see if any of the programs are native or if there are any apps you installed... :confused:
[T-Mobile Samsung Galaxy S6] KingFaisal:
So, I've been using the phone since monday and the battery has yet to last me a full day.

I've been breaking down the battery by using to ~5% then recharging to 100% and cycling this over and over again.

I've been avoiding chargin it too frequently when it's at about 50-70.

One night, I slept at 70% and woke up at 55%. The drain is out of this world.

So now we have to ask; What uses more battery life, LTE or WiFi?

I disabled wifi calling and volte and now I need to decide whether to go all LTE or use wi-fi indoors.

I may do a full whipe seeing that this is absurd. If not, only 6 months till I can jump.
[T-Mobile Samsung Galaxy S6] laureanop:
Can somebody explain this discrepancy in battery reporting ??
[T-Mobile Samsung Galaxy S6] squire2370:
I don't post much, but just wanted to say I had the same issues with battery drain (even with volte and wifi calling off). I went into recovery and cleared cache, and the drain is gone (1 to 2% an hour idol). It's been 3 days now and battery is normal, actually great. I still have volte and wifi calling off (just in case), but the recovery cache clear seems to be what solved the issue for me.
[T-Mobile Samsung Galaxy S6] bubblebuddyi:
I'm truly convinced there was an issue with the update not doing something correctly.

I factory reset, cleared cache immediately and disabled VOLTE/WiFi calling and have no more issues.
[T-Mobile Samsung Galaxy S6] mikesnav:
I'm having a weird issue. Cell standby is by far the biggest drain according to my usage stats, but I'm still getting 4:30-5:30 hours SOT. So... :confused: Unplugged 7AM, 2:45 hours SOT, 44% remaining, with cell standby at 27%, Android System 15%, Screen 7%
[T-Mobile Samsung Galaxy S6] KingFaisal:
How do you clear the cache?

EDIT: Power+Home+Volume UP is recovery mode

Power+Home+Volume Down is download mode (to exit download mode hold all the phones buttons)

So disabling wifi calling and VoLTE still makes the battery drain pretty badly. I even did a factory reset (not through recovery mode though).

Just cleared the cache, will see now.

UPDATE:

It seems that clearing the cache worked.
[T-Mobile Samsung Galaxy S6] squire2370:
Yeah it's wierd. I had immediately noticeable results after clearing cache.
[T-Mobile Samsung Galaxy S6] mobeast17:
Just cleared mine. Let's hope
[T-Mobile Samsung Galaxy S6] nalaar:
Clearing the cache seem to be working for me as well, after a full charge 2 hours on idling battery still at 100% charge, after 3 hours idling i was still at 99%,

was still getting about 2 to 3% after turing off wificalling and Volte
[T-Mobile Samsung Galaxy S6] KingFaisal:
So has anyone tested whether WiFi or LTE drains more battery?

I know on the Xperia Z1s it did, but this is definitely worth testing.
[T-Mobile Samsung Galaxy S6] laureanop:
On T-Mobile, ever since my Nexus 4 through the S4,Nexus 5 ,S5, Note 4, Nexus 6 and nowc the S6 WiFi idle drain has always been way higher than network idle drain.

Now surfing through web and social apps Wi-Fi is marginally better only because at my house I only get 2 bars of LTE.
[T-Mobile Samsung Galaxy S6] guaneet:
I found out one of the battery issues being the glitch where flash is always staying on.

I entered a room with no light and could see the flash was lit.
[T-Mobile Samsung Galaxy S6] levon9:
You want this thread :)

http://xdaforums.com/galaxy-s6/help/flash-lit-t3069039

The power consumption of this very dim light would not be a major drain IMO (and many of those in this thread). Also:

http://www.phonearena.com/news/Some...o-stop-working-Samsung-promises-a-fix_id68108

https://www.androidheadlines.com/20...amsung-galaxy-s6-camera-flash-led-defect.html
[T-Mobile Samsung Galaxy S6] KingFaisal:
Clearing the cache will give you a far better standby time, but your still looking at only 5 hours MAX of on-screen time.

Android OS loves to drain the battery as does the screen (which is understandable).

This phone really needs a custom rom.
[T-Mobile Samsung Galaxy S6] dave1343:
I don't understand why more noise isn't being made about this 'Total Connection Time' bug.

It's absolutely killing my Note 4 battery on lollipop.

At the moment I have a SoT of 1hr46m but a Total Connection Time of 7 hours on Chrome, which is sitting at the top of my battery stats.

I don't have WiFi calling or volte as I'm using a UK phone.

It seems to coincide with the time I have WiFi off and I am using the data network such as 3g etc.

Reconnecting to WiFi seems to stop the 'Total Connection Time' growing.

http://xdaforums.com/note-4/help/ma...szB2OHi8C29pHQS_A&sig2=U4nl4oJlEhi83tMOIStS-g

Really ruining the enjoyment of lollipop.

Could it possibly be an issue limited to Samsung roms?
[T-Mobile Samsung Galaxy S6] ktetreault14:
Alright you guys fix for battery and deep sleep not working while rooted is to restore stock recovery.
[T-Mobile Samsung Galaxy S6] greyhulk:
No.
[T-Mobile Samsung Galaxy S6] ktetreault14:
Alright man. I'm using stock and so is a bunch of other people while rooted and deep sleep is fine!
[T-Mobile Samsung Galaxy S6] greyhulk:
And I'm not and deep sleep is fine on my device. Explain that.
[T-Mobile Samsung Galaxy S6] tassadar898:
4:10 minutes screen on time @ 3% battery with 1 hour of voice calls, 30 minutes of modern combat 5 playing, facebooking, texting, ACdisplay on at all times with active mode, about 20 pictures taken, about 20 minutes of youtube playing and the rest web browsing

Upgraded and disabled wifi calling and VoLTE. Not quite as good as my Xperia Z2 but with this size battery and a qHD I am really impressed what Samsung has done here with a 2550 mah battery.
[T-Mobile Samsung Galaxy S6] KingFaisal:
You're impressed with 4-5 hours of on-screen time?

I had the Xperia Z1s and it obliterated the S6 in battery life.

However, an update can fix the bugs and Google needs to push out a new version of Lollipop.
[T-Mobile Samsung Galaxy S6] bubblebuddyi:
And the s6 obliterates the Z1 in every other way.

Most flagship phones won't get over 5hrs screen on time.
[T-Mobile Samsung Galaxy S6] Divine_Madcat:
Lets aslo be fair -you are comparing the first release of software (5.0.2 x64) on new hardware, to more mature builds on more mature drivers. There is always room for improvement (look at android wear)..
[T-Mobile Samsung Galaxy S6] Dr. Fed:
Cell standby at top of list, with 0% time without a signal. But this was after 7 hours of AIRPLANE MODE. The battery stats can't be correct. FYI, I have not disabled VoLTE or WIFI Calling. I factory reset my phone after the initial OTA and since setup have cleared cache. Not rooted, stock everything.
[T-Mobile Samsung Galaxy S6] Slicktune:
No root

Wifi caling off

Volte for calls off

Wifi always scanning off

NFC off

GPS/Location reporting off

This was overnight look at the screen on time not even 2 mins and it drained 7% with just 6hrs of stand by....

I even wiped cache from stock recovery and nothing....

But why tho??? This is so frusterating....
[T-Mobile Samsung Galaxy S6] juanjg115:
Solution for t-mobile S6 not going to deep sleep?

drksilenc over in t-mobile forum (support.t-mobile.com/thread/87670/) posted detail instructions on one of the battery issues related to the S6 not engaging deep sleep. I wont have my t-mobile S6 phone for another week, but its worth trying. Can someone having battery drain problem test this and report back?

14. Re: What is Causing Cell Standby Battery Drain?

One of the issues that is plaguing this device is the phone is not going into deep sleep. There is an issue with the day one update being applied. There are 2 ways to fix this one is a factory reset. the other is to go into the bootloader and do a clear of the cache. To do the clear of the cache shut down the phone. Then hold the volume up, home and power button. once you see andrew the android saying installing system update you can release the buttons. Then once the menu comes up use the volume keys to navigate to wipe cache partition(NO DATA WILL BE LOST DOING THIS). use the power button to select it. once that is done navigate up to reboot system now then press the power button to select again. That should help with your battery drain issue.

Another thing that is causing issues is volte. You can disable this by going into the phone and selecting more. then voice over lte settings. Then select do not use volte.
[T-Mobile Samsung Galaxy S6] abachhan75:
got s6 last week, also facing battery drain like everyone else. After reading this thread, have cleared the cache. let's see what happens now. I don't know whose fault is this Sammy or T-mobile, but have expected better quality control on such a hyped up phone.
[T-Mobile Samsung Galaxy S6] DC2CA:
I think it's getting a little better. I'm at 19 hours and 44%. That's with an hour of voice calls, 1.5 hours screen on and maybe 2 hours or so of tethering.

Not sure it can live up to my work s5 which will last a week if I don't touch it. Have not used power save mode on the s6 yet though. So maybe..
[T-Mobile Samsung Galaxy S6] Dr. Fed:
But why tho??? This is so frusterating....[/QUOTE]

Any chance the native battery stats are incorrectly reporting the source of drain. in your screenshots it seems like it is android system, but native settings reports cell standby. I had a cell standby drain during 7 hours of airplane mode...:eek:
[T-Mobile Samsung Galaxy S6] wildmaiden:
I can confirm that clearing the cache worked for me. Easy fix to an annoying problem. If you haven't cleared the cache after the OTA update yet, you really should do so. Turn the phone off, then press and hold volume up + home button + power button all at the same time. You'll see a message saying "installing system update", which will display for a moment, and then you'll enter recovery. Once in recovery, select "wipe cache partition". Reboot, and your battery life will be much improved. No data is lost, it only takes about a minute in total - just do it!
[T-Mobile Samsung Galaxy S6] Fenny:
I am getting great battery with the custom kernel and debloated ROM I am working on. Based on the previous power line my device is lowballing the estimate methinks.
[T-Mobile Samsung Galaxy S6] Slicktune:
You didnt even post the screen on time...
[T-Mobile Samsung Galaxy S6] sublimaze:
Your battery curve look suspiciously like mine when I am asleep and not using phone. And a photo showing screen on time would be helpful.
[T-Mobile Samsung Galaxy S6] guaneet:
nice bro, i cannot wait for the first custom kernel. shoot me a pm if you need help testing :P
[T-Mobile Samsung Galaxy S6] Jrad3412:
My 2 cents

I don't believe the high cell standby is due to the VoLTE. With wifi calling turned off but VoLTE still on, I noticed that my cell standby connection time only increases when wifi is enabled. I installed leandroid to force wifi off when screen is off and I haven't had any high cell standby since. Just my 2 cents.

wifi calling off

wifi on

bluetooth on

VoLTE on

Haven't cleared cache or factory reset

Disabled all bloatware/unwanted apps
[T-Mobile Samsung Galaxy S6] mikesnav:
I don't have the terrible drain with wifi disabled. Also had wifi calling off. On LTE battery is better. Weird
[T-Mobile Samsung Galaxy S6] guyd:
Custom Kernel and Debloated ROM ?

I can't wait!!!
[T-Mobile Samsung Galaxy S6] juanjg115:
Samsung published an update?

The following was posted in //support.t-mobile.com/thread/87670?start=15&tstart=0

17. Re: What is Causing Cell Standby Battery Drain?

verdugoa

Newbie Silver

verdugoa Apr 16, 2015 4:43 PM (in response to heat786)

I went to a T-Mobile store to try to do an exchange. They did have information about this problem in their system. He told me that Samsung published an update today that is supposed to help with this problem.

I'll give it a couple of more days to see if it makes a difference. If not, it's going back.

Samsung Push Service - Android Apps on Google Play

What's New

This update includes:

- Apply patches for reduce data usage and power consumption

- Fixed reported bugs from previous version
[T-Mobile Samsung Galaxy S6] alhadee12:
Is this device worth getting with the battery issues? I'm using a Z3.
[T-Mobile Samsung Galaxy S6] atoy74:
So the push service update was released on April 15th. Anyone have feedback? I've gotten so used to plugging in anywhere and everywhere that I really haven't given it a chance. Today might be my first day to really stretch out its legs.
[T-Mobile Samsung Galaxy S6] adidas123:
My S6's battery is very very good, more longer than my Note 4
[T-Mobile Samsung Galaxy S6] Cyberguycpt:
Mine seems better here's a before and after.

Before

And after
[T-Mobile Samsung Galaxy S6] cellsafemode:
With any luck samsung will fix these issues in the not too distant future.

I'd rather not disable every feature available on my phone (like i have done currently) just so it has cpu and battery power to do what I want it to do when I want to do it. As it is, samsung could probably save significant money in hardware costs and do a lot better in online reviews if they looked at the insane list of things people disable out of the box, then the things they have to turn off or disable because they abuse cpu/battery more than they are useful. It's aggravating to have half of the features and gadgets on my phone that I'm paying for disabled / not turned on just so I can use the phone how i see fit. meh. Better than a nexus 6 though.
[T-Mobile Samsung Galaxy S6] juanjg115:
Was this the before and after comparison when applying the Samsung push service update? Anything else you did?
[T-Mobile Samsung Galaxy S6] supposedmonster:
I just did an exchange yesterday. Between 7:00 and 5:00 I was down to 3% battery life with 2.5 hours screen time, and this was happening all week. I had tried, in this order:

-Turn off voLTE and wifi calling, and used GPS only location services

-Factory reset

-Clear cache

-Root and froze everything I could with Titanium Backup

Nothing was working. Cell standby and Android Services took turns topping the battery usage list with everything else trailing far behind.

New phone seems better, but not great, but this is only the second day of use. 7:00-1:00 I'm at 68% with only 45 minutes of screen time. Had to turn off voLTE, wifi calling, Google Now, and using GPS only, because those caused visible drain. On the bright side, Google Play Services is now topping battery usage at 7%, Android System is only at 1% and Cell standby isn't even on the list.

Looking hopeful...will report back in a few days. Wondering if it's a hardware problem now.
[T-Mobile Samsung Galaxy S6] Cyberguycpt:
Yes the after shot was after I updated Samsung push service.
[T-Mobile Samsung Galaxy S6] KingFaisal:
How do you get 8 hours of screen time?!

I get a measely 4 with:

Reset Cache

Wi-Fi calling off

VoLTE off

Samsung Push Updated

Most bloatware disabled

NFC off, Bluetooth off

Wi-Fi (4g drains more)

Auto-Brightness

Excellent signal

I even did a factory reset. I'm going to do a second factory reset and try once more. If that doesn't work I'm returning this phone.
[T-Mobile Samsung Galaxy S6] guyd:
I'm sure there was some recharging going on there! This device won't get 8 hours screen on time even if you striped it naked!