yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 General] zexl455:
What am I doing wrong guys? My battery seems to drain like hell even though I barely touched the phone at all :(

I have stamina, low battery and location based wifi on, queue background data also..

Any help is appreciated..
[Xperia Z2 General] Haldi4803:
No idea, try BetterBatteryStats or WakeLockDetector.

btw, Z3 Tests are out!

GSM Arena:

Which is 11h30 vs 12h

So either 50% Screen Brightness doesn't take as much battery on the Z3 or it less energy hungry WiFi connectivity!

Video test is Z2 better 12h16 vs 11h47

So i assume the WiFi is better on Z3 !

and then we have the Test from phone arena:

in which the Z3 beats the Z2 by 1hour 20 minutes

i could not find any info on how this benchmark is done... Wifi? 3g ? Screen Brightness? no idea.
[Xperia Z2 General] Jiyeon90:
Holy crap, something is running in the background while the screen is off, you could try to do a factory reset or get wakelock detector.

Meanwhile my Z2's battery is still kicking ass

Sent from my Xperia Z2
[Xperia Z2 General] effective:
I bet that we will achieve better battery results when we get 4.4.4 with its tons of bug fixes. (: thats one of the reasons z3's got better ones.
[Xperia Z2 General] funky0308:
Yeap...

4.4.4 should bring better battery life..

Even with few tricks and apps you can get quite impressive results on 4.4.2...

I'm using lux autobrightnest.

Actuallyx I'm using it when I'm on 5-10% of battery and I'm out or without charger.

The other day I managed to read threads and posts on XDA for two hours spending only 2% of battery...

Of course, I set LUX to -13% backlight but it's enough when you aren't on a daylight.

I would definitely recommend this app for at home and indoor using as it will allow you to set brightness to "minus".

I even found useful extremely low brightness level (under -40%) when I'm trying to use my device in a same room where my little son is sleeping :)

In this screenshot notification drawer is bearly visible but, believe me, it's perfectly fine when you are in total dark...
[Xperia Z2 General] Jiyeon90:
I heard that lux didnt help improve battery life as it only added a black tint to make the screen look darker..

but if you are getting better battery life with it I'm definitely gonna try it as I find the z2 screen too bright when using it in a dark room.
[Xperia Z2 General] cptnappy:
hi guys, just need some opinions. is my Z2's battery stats normal? i used to see a day or more when i check Power Management but now when i take it off the charger 100%, it would usually show me only 15 hours. :(

screenshots were taken at around 49% with 2h 44mins of SOT
[Xperia Z2 General] Haldi4803:
Never trust that Value!

But in your case it does look kinda bad. 100% Screen brightness or Automatic under sunlight ?
[Xperia Z2 General] bjornops:
Can confirm the same kind of battery life here. Didn't screenshot, but had 2:45 SOT with 54% left. I'm not blown away, though it's much better than my old One X, which barely made it through the day at 1h SOT :P

I'm having quite variating battery life, bc earlier I've managed to get 8h SOT with ~15% left and recently 3h with 10%...

Using medium auto brightness.

Sent from my D6503
[Xperia Z2 General] cptnappy:
here's my final battery results for the day, should i be concerned? it's far from the 9 hours of SOT i've been seeing. :0

my usage:

- 75% brightness with auto brightness turned on

- youtube via wifi through front facing speakers

- surfing the web (more on articles and news)

- took around 8-10 photos using superior auto

- calls, about 30 minutes for the whole day
[Xperia Z2 General] Kocane:
Yeah same here. Battery varies alot.
[Xperia Z2 General] Haldi4803:
That's totally normal!

When I'm chilling in my hammock, direct sunlight on the screen(automatic minimum), streaming flacc music from my Nas and browse the Web via tapatalk I get around 3-5h SoT in 24-35h standby.

You need minimum Screen brightness to get high SoT.

And speakers drain more than they'd like to admit!
[Xperia Z2 General] cptnappy:
Battery on this thing (as far as my experience goes) is hit or miss. My last post i got 6 hours of SOT (2 hours and 44mins at 49% battery). Now I'm at 67% with 2 hours and 36mins SOT with auto brightness at 50%. Screen brightness seems to hit battery life in my case. That's 18% improved battery life with just lowering brightness from 75% to 50% even with auto turned on. Thanks for the tip! :good:

Anyway, I'm still on the fence about the new Z3. I am so tempted with its wider angle lens and sleeker design. Plus the flaps are supposedly improved with its higher IP rating. The flaps on my Z2 are killing me, popping out once or twice in a day. Very flimsy.
[Xperia Z2 General] Haldi4803:
If you wonder, Is undervolting worth it ?

Yes it is! 17% improved SoT by undervolting -100mV

http://xdaforums.com/showpost.php?p=55747470&postcount=38
[Xperia Z2 General] gautampw:
this was done at 1.4 GHz, a frequency at which the margin for allowed undervolting is relatively more, if this same test is somehow done at minimum frequency, I doubt the phone will be able to complete the test without randomely rebooting. Considering in day to day use most used frequency is lowest, real life gain won't be 17%, instead you might get reboots often
[Xperia Z2 General] Haldi4803:
You won't get reboots if you don't undervolt to much.

-100mV is not global but specific for 1497mhz frequency!
[Xperia Z2 General] cptnappy:
Got improved battery life, I'm at 5% with 7 hours of screen on time.

current set up:

- screen at 50% with auto brightness turned on

- usual youtubing and web browsing

- 20-30mins worth of talk time

- 5-7 photographs using superior auto mode

- 3 videos (around 1 minute each) shot at 1080p 60fps

- emails and sms

So far so good! Absolutely varies with different usage. Will post my final results for the day later when it gets to 1%.

EDIT: my new battery results are up! 8 hours of SOT without any power saving at all just the brightness at 50% with auto turned on
[Xperia Z2 General] Jiyeon90:
I feel like I could easily get 10h SOT

Sent from my Xperia Z2
[Xperia Z2 General] gautampw:
CM11 seems to be doing better than stock in terms of battery life, which music and camera app do you recommend while using CM11?
[Xperia Z2 General] Jiyeon90:
Sorry, I'm on sony's stock ROM, I believe stamina mode is the reason why I'm getting great battery life :P

But for music I use poweramp, there's simply no other music player that can match it, even though walkman is really good too
[Xperia Z2 General] gautampw:
I thought Cm11 because of that status bar
[Xperia Z2 General] cptnappy:
i didn't have mine on stamina mode but i got 8 hours SOT out of it. i think stamina mode would've added an hour or two. Z2 is a monster with battery life! :highfive: with that said, i'm looking forward to my Z3! :victory:
[Xperia Z2 General] Jiyeon90:
Hehe, that's thanks to xposed.

I have been using Sony phones for 2 years now so I wanted to change the looks a bit [emoji13]

Sent from my Xperia Z2
[Xperia Z2 General] rodritank:
Hey guys, newbie here.

Bought my Z2 this week, and it is my first Android mobile so I am just learning a few things.

The battery life is kinda confusing me. It really lasts on standby (greenify, stamina, cpu tuner, 50% brightness), I can get it running for days with a few things turned on (BT, NFC, ocasionally wifi). However, when I use it de facto (c'mon, its a powerhouse, I have to use this thing ;P) the battery drops faster than I thought.

Using Chrome, Camera, Whatsapp and Facebook it drains quite quickly - around 1~2 for each 6 minutes. Things get tighter if I run emulators (of course). Smartband is always on BT and NFC. I rarely use LTE - only wifi. Stamina and Greenify on.

So I am wondering: is this normal or did I get a faulty battery?

Current specs:

D6543, stock 3.14 firmware, unlocked bootloader, rooted.

Thanks, guys
[Xperia Z2 General] cptnappy:
I think those are normal values especially if you are running a lot of apps and connected to wifi a lot

here are my final results before I sold my Z2.. pretty sick battery life! :highfive: Z3 will be the same for sure, maybe even better.

by the way, after taking the screenshots i had about 20mins more of SOT before it died. :good:
[Xperia Z2 General] Haldi4803:
Talk about Batterylife...
[Xperia Z2 General] mariosraptor:
I can't make these times that you get guys.
[Xperia Z2 General] Envious_Data:
I bet we can squeeze 9hrs with 4.4.4

Loop process bug in the framework causes alot of battery lose when the screen is on

Same goes with a few modules which are causing lag when in use, wifi and mobile data on 2G are a couple
[Xperia Z2 General] Haldi4803:
Nor do i!

When i want to get over 7hours of SoT I will only achieve that when we use the fully charged phone nonstop!

Daily usage with Standby I achieve mostly 3-5h SoT for 1-2 days of Normal usage.

P.s oh yeah... I use the Sleep as Android app over night in flight mode ^^ so no standby there!
[Xperia Z2 General] Haldi4803:
Edit: wrong SoT screenshot!

Can't change that in an edit on Tapatalk -.-
[Xperia Z2 General] Pandemic:
Here are mine on 14 hours and still 76% to go ^^
[Xperia Z2 General] chesterr:
Do you know what's wrong here? how do I get rid of this fast dormancy thing? and It just happens when I get into a place where there's no LTE or I toggle it to use 3G instead of LTE. This is within 6hours of standby and it ate almost 9% of my battery. :crying:

Edit: had to reup the screen shot. XDA didn't upload the screen shot. :confused:
[Xperia Z2 General] Haldi4803:
Yeah. Happens to me every time I flash a new sony stock ROM!

Do you have root? Get root browser and delete the fastdormancy.apk (or named similar) in system/apps or system/priv-app (not sure ..) And then reboot..... Voilà!
[Xperia Z2 General] chesterr:
Yea but the weirdest part is that I can't seem to find it in those pathways. I tried looking for it.

Or should I let it trigger and then go and look for it in system/apps or system/priv-app ?
[Xperia Z2 General] o0 Matt 0o:
I found a apk called fast-dormancy-wakeup.apk in /system/priv-app/
[Xperia Z2 General] chesterr:
Hell yea that's the one. it's time to delete this piece of crap. :highfive:
[Xperia Z2 General] Envious_Data:
fastdormancy app is for assisting your gsm radio

some people wont be able to live with out it due to their mobile service provider
[Xperia Z2 General] kumbangdesa:
Mine.
[Xperia Z2 General] Haldi4803:
And if it keeps your phone awake for 6hours even when in Stamina mode i i'd say your provider doesn't support it xD

At least i've never had any problems with the .apk deleted. If you DO have problems, think back what you changed on the ROM and you will realise it was a mistake :)
[Xperia Z2 General] Envious_Data:
agreed

put it back if you have problems

if not feel free to remove it, its been a battery eater for a good couple years on xperias
[Xperia Z2 General] Pandemic:
What have a provider todo with stamina mode ??

None !!

It is hardware related and so far i see here are alot kids on XDA that talk about stuff what they dont know about it and confuse newbies or other people.

Please stop with that, do you research first !!

Even an RC must know that:

And i was an RC !!

So nope i not agree [MENTION=4895687]Envious_Data[/MENTION] !!
[Xperia Z2 General] Envious_Data:
I know what fast dormancy is

Its the matter weather it fails to do its job, it seems to be doing that on all xperias ive used excluding Z2

S/SL/SP/Z

4.1-4.3

Z2

4.4.2 ~ problemless with fast dormancy
[Xperia Z2 General] Haldi4803:
Well..... what does fast Dormancy do ?

it controls the Mobile Data signal (not sure if 3G only or also 4g) and tells the phone when standby is okay and when it needs to stay connected.

What does Stamina mode ?

It blocks all Mobile Data to save battery. (exclude exceptions!)

So.... what is the use of Stamina mode if the phone keeps asking network to change mobile signal ?
[Xperia Z2 General] eagleeyetom:
Kindly move on please.
[Xperia Z2 General] Pandemic:
Haha sure i will ;)
[Xperia Z2 General] Magnetox:
+1
[Xperia Z2 General] benjmiester:
My best so far... 1 day 10 hours 25 mins with 5 hrs 4 min screen on time. That's the highest screen on time i've ever hit on any phone too, not just most I've been able to (that too) but most i've ever used any phone ever.
[Xperia Z2 General] mhyke13ph:
Heres mine, I have SW2 connected for 9hrs a day, and MW1 during commute a total of 1hr+ a day, calls and txt, a little bit of gaming 30mins+ a day, browsing facebook, chrome and xda app.
[Xperia Z2 General] ahvipardik:
How is it possible that my battery dies so fast, or maybe I ain't normal user...?

With second charge I also got 7 hrs screen on time, but now it seems to be a dream.

I got 3.5 hrs screen on with 23% left.

No big wakelocks, phone is in deep sleep most of the time.
[Xperia Z2 General] A|ex:
How are you guys even getting 7hrs, i batter my phone and also play games but can pull off at least a day out of the battery. i am on RomAur v4.0 and do not use stamina mode because it is too timid and not aggressive enough to close or stop processes
[Xperia Z2 General] Envious_Data:
Doomkernel V11

Stock rom

-Debloated

-Deodexed

1.7ghz underclocked

Eco conservative mode

-37mv undervolt

Intelliactive governor

Brightness at max

Stamina mode always on

Extended usage enabled

Xposed+NLPUnbouncer

Deleted any extra apps i dont use (some of them cause battery drain)

Some other things, cant remember. i usualy get 6/7 hrs of screen on now,

(my previous Z2 didnt last even a hour but it was a faulty unit)

Ill post a screen from my next run through ;D
[Xperia Z2 General] Jiyeon90:
I went from 100% to 90% after 1h35min of using Tapatalk and chrome on the lowest brightness, is that normal or is it just stamina mode and greenify doing the job?

Sent from my Xperia Z2
[Xperia Z2 General] Envious_Data:
Sometimed battery calibration throws off

Just use normaly as much as you can and it should adjust its self

I have this too every so often where battery life just goes terribly

Simply answered, yes its normal if it happens sometimes and your usage of 10% in 1& 1/2 hours sounds normal to me
[Xperia Z2 General] Haldi4803:
Used Tapatalk and chrome direct under bright sunlight.

Didn't end up good xD
[Xperia Z2 General] Envious_Data:
9hrs total

7hrs screen on

~5hrs movie streaming

While streaming:

-2hrs on mobile data

-3hrs on wifi

2hrs web browsing/Xda app browsing

Info:

Envi-Rom 0.5E

Doomkernel V11

2.5ghz Max clock

Intelliactive gov

Intelli-plug: conservative

Touch boost disabled

-36mV undervolt

GPU: lazy 2:8 simple ondemand

I/O: Row, Read ahead 2048KB

Ext Sd: NOOP, read ahead 256kb

Multiple reboots
[Xperia Z2 General] Chad_Petree:
Thank you! that's what we wanna see! total time of usage accompanied by the onscreen time :D , I gotta say I'm a bit disappointed , I thought we would get that kind of usage without having to use stamina mode :crying: , I though we would get 2 days out of the phone with stamina mode on, well at least is quite an improvement over my Nexus 5 :(
[Xperia Z2 General] Jiyeon90:
Impressive!

Sent from my Xperia Z1
[Xperia Z2 General] KevinB88:
With which smartphone you can get 2 days battery life with that usage? I can't wait to throw away my Galaxy S3 and take this little piece of heaven.

Gesendet von meinem GT-I9305 mit Tapatalk
[Xperia Z2 General] chesterr:
See I've been telling this ever since that this phone's gonna nail it. and I saw HTC One(m8) forum and they didn't get this much of battery.

And anirudhks, buddy I want you to share more of your battery usage. Thanks :)

---------- Post added at 12:20 AM ---------- Previous post was at 12:18 AM ----------

I think he must have hit his head somewhere around lol
[Xperia Z2 General] debrandman:
Has anyone tested the Z2 with the GSam Battery Monitor app? The guys on xda Htc One m8 forum are using this app for testing battery life on their new m8's and it seems to be doing a pretty good job and its pretty accurate too. :)
[Xperia Z2 General] Chad_Petree:
I know no regular phone is able to do so, but when you use those super battery saving modes it's possible, that's all I meant, crazy good battery life while using those saving modes is doable

Gesendet von meinem Nexus 5 mit Tapatalk
[Xperia Z2 General] KevinB88:
Well here in Germany we have very often bad signal strength and I think it's the main reason, we can't get such battery life. But I'd be happy if it lasts a whole day even with bad signal. But that's my first Sony phone for 8 years and i don't know stamina mode very well.

Gesendet von meinem GT-I9305 mit Tapatalk
[Xperia Z2 General] Chad_Petree:
Maybe we spend a lot time underground (on the ubahn ) ? :'(

Gesendet von meinem Nexus 5 mit Tapatalk
[Xperia Z2 General] Haldi4803:
ignore that GSam stuff and get Better Battery Stats!

Free for XDA members.

http://xdaforums.com/showthread.php?t=1179809
[Xperia Z2 General] Shudder123:
i believe they are using that app because the m8 doesn't display screen on time
[Xperia Z2 General] mushtafa:
That's correct. HTC dropped that info from sense 4 if I recall right.

I think we need this info from the Z2 as well to make comparisons.

Sent with Tapatalk
[Xperia Z2 General] MSIOCGenie:
I also shows a lot more detailed statistics of pretty much everything, I'd recommend you all to try it out.
[Xperia Z2 General] debrandman:
I think it would be interesting in comparing z2 and one m8 battery life using the same app. As far as I know, GSam Battery Monitor is more detailed in stats than z2s native battery app. One m8 has reached some good scores in GSam and I just wonder how the Z2 will cope after using the same app. Is there anyone willing to test the Z2s battery life using GSam Battery Monitor app?
[Xperia Z2 General] anirudhks:
i have installed Gsam today , will post a few results later in the day about after 50 % usage,,
[Xperia Z2 General] Zanr Zij:
Just say good bye to my Note 2. After 1 day, totally I'm happy with Z2. I can't wait to get custom kernel and some tweaks/mods to make Z2 more convenient ( no vibrate when connect call, no call button within messaging app ...)

Sent from Z2
[Xperia Z2 General] vlawrence0324:
Great stats
[Xperia Z2 General] KevinB88:
And note 2 is even much better than galaxy s3 i heard. But I well have to wait till May [emoji24]

Gesendet von meinem GT-I9305 mit Tapatalk
[Xperia Z2 General] superlimau:
80% LTE 20% WIFI, 50% brightness, using Chrome, whatsapp, twitter, Facebook, YouTube and tapatalk, I'm getting 7 hours screen on in a 20hours duration.

Sent from my Xperia Z2
[Xperia Z2 General] Haldi4803:
Do you blame the reboots on Doomkernel v11 or Undervolting?

Which app do you use for Video streaming? MXplayer or stock Sony movie app?

And what screen brightness did you set? Automatic I guess.....
[Xperia Z2 General] Envious_Data:
Undervolting usualy gives me a extra 20mins

Reboots killed alot of my life

Stock sony movie app

Max brightness no auto adjust

I concider this life to be very good seeing as i rebooted close to 20 times
[Xperia Z2 General] chesterr:
Why Play Services waking up always?
[Xperia Z2 General] Jackos:
Try Unbounce from the Xposed Repository.
[Xperia Z2 General] Haldi4803:
the new name for this app is "Lion Tamer" and it's also called like that in Xposed!

About the "alarm_wakeup_activity_detection" Wakelocks.... first time i've heard of that!

When was the last time you restartet your phone ?

what apps do you have installed / use regularly ?

Does this happen every time ? Or only when ilde ? only when using a certain app ? does it happen while screen on and you browse the web or similar ?
[Xperia Z2 General] Jackos:
Right, thanks for the clarification.
[Xperia Z2 General] Haldi4803:
Hahaha scratch that! Renamed again!

"Amplify -Battery Extender" is the name of v2.0.3
[Xperia Z2 General] chesterr:
Well i think this gotta do with the significant changes in gsm, like I'm using data connection all the time(4G) network, no wifi. I think due to that signal drops play.services kept opening. I mean I installed unbound aka Li0n Tamer. (didn't update to 2.04 yet). And it improved significantly.

And yea true I hardly restart the phone. But here and there I let the phone's battery to die completely.
[Xperia Z2 General] Haldi4803:
This one is the last from me with 4.4.2

I expect better with 4.4.4 ^^

I use sleep as android + flight mode at night! And the last 27% of battery were used with absolute minimum screen brightness.

3 days, 2 nights and 5.5h SoT!
[Xperia Z2 General] Haldi4803:
Now on Prerooted deodexed .167 4.4.4

Greenified Google play store, Fb,Whatsapp, Maps.

Had great WiFi but horrible 3G

0.3% per hour and 7 min in 14 hours....

Think this might be OK...
[Xperia Z2 General] Haldi4803:
4 hours on Mobile Network Standby.

Found an old friend in the alarms! FastDormancy ^^ as expected!

Deleted the .apk now. Tomorrow I have the whole day to test. So I wonder if I can get better than 0.7% per hour.
[Xperia Z2 General] Haldi4803:
well yeah... i failed.... reflashed rom and totally forgot about FastDormancy ^^

so here we have *Normal* day of usage Wifi at home, then overnight we have Sleep as Android running and then start into the day with 3g

The day was nearly 10 hours, 56minutes Awoken with 16min Screen on (lots of whats'app messaging)

Mostly bam_dmux_wakelock 24 minutes 4.1% | 13 minutes (2.3%) Partial Wakelocks | 5minutes (1%) radio-interface

Partial Wakeups are made from AudioMix (i have no idea why... phone was muted the whole day. no mp3, no ringer... nothing) and this damn google wakelock for smartbands/watches -.-

and there we go! FastDormancy makes to most (364) alarms.

Oh btw, Amplify says i have only 33 minutes Wakelock ^^

so for 9h50mins we have -11% Battery lost from 85% to 74% which is 1.1% per hour.

Let's see what i can achieve today with FastDormancy deactivated.
[Xperia Z2 General] Haldi4803:
-.- yaaay thx google for new Wakelocks !i got nearly boored without !

So here we go again, one more night with Sleep as android, and then a full day with no WiFi.

8hours from 57% to 48% -9% 1.1% per hour with 4min SoT and 38mins Awoken. (8%)

bam_dmux_wakelock has gone back some! (is now on 2%, was on 4% last time!) radio-interface is increased from 1% to 1.8%

well..... thank you SO much Google play services! But Hey! i got rid of "AudioMix" by deactivating vibration! gonna reactivate and confirm this!

alarms show that fastdormancy is no gone! but else it stays the same.

Amplify still shows totally different wakelock time ^^

but it shows the com.google.android wakelocks -.- First Time i've seen them!
[Xperia Z2 General] Haldi4803:
and here we go! With the thrid day :D This time Standby was somewhat.... maybeok

As Always, overnight Sleep as Android, and i was somewhat scared when i hat 28% Left tomorrow, tought wouldn't make it trough the day :cyclops: but was easy as pie.

So here we go! from 28% to 20% (-8%, 0.8% per hour) in a 10h30mins time with 30 minutes (5%) awoken time :D and only 6 Minutes Screen on.

MOST of the Wakelocks come now from Mobile Data and Phone signal! (Modem, hardware related!) only 3 Minutes from Partial Wakelocks (0.5%!)

AudioMix decreases the less you use it... and with no Ringer, vibrates or anything soundy it can't happen ;) Most of the Wakelocks are system relevant, your phone won't work as normal without them.

Same goes for the Alarms.

Amplify only saw 6 Minutes Wakelocks now ^^

in a few hours i will post the END result, of these 3 Days :)

---------- Post added at 11:21 PM ---------- Previous post was at 10:30 PM ----------

So here we go !

1 Evening of Idle WiFI, 3 Nights of Sleep as Android, 3 Days of rarely used, 3 evenings of slight browsing.

Totally 3 Days 3 hours and 3hours 40mins on Automatic Brightness in dark environement.

Mostly used for WhatsApp, Tapatalk surfing, and some Chrome web surfing.

Stamina mode with restricted Performance, Greenify and some other small tweaks on stock 4.4.4. .167 ROM
[Xperia Z2 General] A172:
auto brightness at max
[Xperia Z2 General] chesterr:
Before 4.4.4 update and entire thing was on LTE.
[Xperia Z2 General] danilodbr:
One question! Is active double tap to wake?
[Xperia Z2 General] Haldi4803:
Yes
[Xperia Z2 General] nouxz:
My battery stats, actually it lasted two hours more after these screenshots.