yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 General] stanley08:
Yes, but people use their phones differently, people live in difference regions. Me for instance, I live in West Africa where Electricity isn't the best, some days you go 12 to 16 or even the entire 24 hours without electricity so I need my phone battery always performing at it's very best. So yh :)
[Xperia Z2 General] Croize:
Agree, You never know when you need alot of power ^^ Altough, almost every person, Always want better ;) no matter what you use it for :D
[Xperia Z2 General] stanley08:
Yep! I can go 24hrs with 10 to 11hrs screen time, and still do everything I 'need' to do. Dat my friend is 'MAXIMIZING your battery life' ;)
[Xperia Z2 General] Croize:
Ye i hear you =) I went 24 hrs now with 7 hrs screentime :) and yet 49 % battery :) Probably will max it out tonight / tomorrow ^^ Are you constantly on wifi? Cause i feel it drain a bit of battery : s I assume you dont game to ^^ ?
[Xperia Z2 General] stanley08:
ALWAYS on WiFi, yes. I have 3G plan too but almost never use it. I pay 3 different internet plans every month (lol) so I am never offline. Anyways, as I said, always on WiFi, I have a Vodafone mobile WiFi router, Or call it MiFi. So yes, I'm always on WiFi even when outdoors. Smart ;)

[IMG="Vodafone MiFi"]https://d2t1xqejof9utc.cloudfront.net/screenshots/pics/b764fe3d6faaeb0ed52987c72d8aabda/medium.jpg[/IMG]
[Xperia Z2 General] Croize:
Sweet :) Its working good ?
[Xperia Z2 General] stanley08:
Gets at least 5hrs with heavy usage and up to 11 hrs with very light use. Enough time to get to a power outlet or even just a usb port most times. Also charges from 0 to 100% in around 1.5hrs (1050mAh battery and 1.0A charger).
[Xperia Z2 General] Croize:
Not bad , :) What does it cost ?? :)
[Xperia Z2 General] stanley08:
I think it is 45 pounds on Vodafone UK website. But I got mine fore around 60 dollars at the time I think...
[Xperia Z2 General] CarlitosMendezR:
[MENTION=3056043]Haldi4803[/MENTION]

Dude you rock!!! Best answer ever, indeed z2 rooted with xposed installed, will disable Google search, will it affect location? Once again thanks.....
[Xperia Z2 General] Haldi4803:
I don't use location service.

Except WiFi location and GPS for Google maps.

Then I turn on location else it's deactivated.
[Xperia Z2 General] Croize:
This seems right for just Light use??
[Xperia Z2 General] gautampw:
You've used it for 15 mins, give it more time
[Xperia Z2 General] stanley08:
Sometimes, my battery is all over the place too... Just give it time.
[Xperia Z2 General] CrisperNeO:
It does help, even for our already battery friendly Z2

I like this thread as I always like battery saving tricks ;)

As I came from many other phones so I was quite happy with Z2's battery life - without any tricks - had 6h screen on time and 24h of charging cycle before, therefore I didn't pay much attention on this. But as I just tried what OP said, especially about freezing bloatwares and unnecessary google apps (I think Google+ etc. was the main culprit), my battery life already looks much better right away (I think Greenify also contributes). Never thought it can even be better with Z2. So big thanks to [MENTION=4702699]stanley08[/MENTION], good job!

And btw.: I don't know if anybody has mentioned, about the GPS/location thing, there is an Xposed module named "NlpUnbounce", which helps to control the location related wakeups. I'm trying it and will report - I would like to leave location on, at least in "battery save" mode.
[Xperia Z2 General] bdithug:
I use an app called power toggles to toggle my location between completely off and high accuracy. It's always kept off unless I'm using gps navigation. Also an xposed module which disables the google location prompt when enabling location services. This way it's quick and easy to just enable and disable location services.

I also uninstalled (then reinstalled from the play store as user apps, then greenified) google search, Google plus, and maps. Haven't noticed too much a difference but every little bit adds up.

I think my main battery killer is the fact that I always keep my screen brightness full 24/7.
[Xperia Z2 General] djgodlike:
Thanks for the tip for the xposed module for GPS prompt! Is use power toggle for ages too..

Wondering if maps (user app) will help saving battery juice. Where did you find this?
[Xperia Z2 General] EnIXmA:
Tasker is a big battery saver too.. Things like my GPS turns on when i open maps and turns soff when I exit it autatically.. Etc etc
[Xperia Z2 General] bdithug:
In the first post of this thread, the OP mentioned freezing or greenifying maps when you're not using it. I gave it a try (as well as Google search and Google plus) but haven't noticed a huge difference yet.
[Xperia Z2 General] RyanRR:
My battery life isn't that good. I've had my Z2 for 3 weeks now. (# 14W24)

I get about 4-5 hrs SOT daily. I'm not a heavy gamer (max. 1.5hr/day), I use 3G (1-3 bars reception) no more than 1.5hr, and I listen to music for probably 20-35 minutes(sometimes at all). Altough 2G reception(which I mostly use) is almost always full. I installed Greenify and greenified most of them (except for Facebook Messenger, 3G Watchdog and Xposed + Modules). I don't really use Stamina Mode, except for when battery drops to under 15%. WI-FI on for no more than 40 minutes/day. Everything is disabled (Bluetooth, Location, NFC, Auto-Sync). Brightness is set to Auto with the bar all the way left (to lowest). Location-based WI-FI is disabled (due to the fact that it needs Mobile Data active all the time).

I see you guys get over 6hr SOT. I have never been able to achieve that.

Any chance there might be something wrong with the device ?
[Xperia Z2 General] Croize:
I have same issue atm, 14W24 atm, At the begenning it was kinda good... But now it going downhill.. When i use 3G and stuffs it drops ALOT. even in standby mode ( without 3G )
[Xperia Z2 General] EnIXmA:
Any way to fix the android system and cell standby battery drain?
[Xperia Z2 General] Envious_Data:
Android system is technicly a duplicate

Its just sevral apps thats show in the powemenu and cell standby is actualy how much %has been used while in standby which funny enough that % should be added to google services or android system, same 2 realy
[Xperia Z2 General] Haldi4803:
Thx, this damn checkbox sure started to bug me :)

http://repo.xposed.info/module/com.mohammadag.disablelocationconsent

BTW: how much SoT do you get on the average?

I use automatic Brightness, but because I'm always in really bright environment ist mostly maximum ^^

Normaly I get about 3-5h SoT with 24h+ standby.
[Xperia Z2 General] Kocane:
Since getting this phone I dont really worry too much about the battery. At the end of the day it seems like I've always got a bit left so when I got to bed its maybe at around 10-20% Most of the time I just use almost maximum brightness (autobrightness) and it all works out. Before my vacation ended (days I typically spent at home) I sometimes got like 8 hours of screen on time. But now, during a normal day, I'd say about 5 hours.
[Xperia Z2 General] bdithug:
Yea normally my SOT is around 4 hours or so. Sometimes I can hit 5 depending on circumstances.. As long as it lasts me the full day I'm happy.
[Xperia Z2 General] djgodlike:
Maybe a nice tip for people who like geotags in camera pictures (a bit buggy) when GPS turned off and High Accuracy GPS Auto On / Off for apps like Maps.. Use Llama or Tasker to create events to do that, works very nice :)

Ps need Root, Llama/Tasker and Secure Settings plugin from playstore

Update: I bought Tasker for turning "GPS On" by sending a Sms to the lost/stolen phone. I use the app called Theftie.
[Xperia Z2 General] stanley08:
Lol. I never use Geotag in pics. Like ever.
[Xperia Z2 General] djgodlike:
I do, cause I can :)
[Xperia Z2 General] stanley08:
HUEHUEHUE :p

Lol. How much screen time?
[Xperia Z2 General] Rick Poldo:
only 5 hours
[Xperia Z2 General] beni8978:
Make a photo of that so we can trust you ?
[Xperia Z2 General] Rick Poldo:
Sorry dude, but I just reload, as shown in the photo was 15%.

And that picture is already 13% of connected screen...

Well, there's no reason not to believe the photo is there, not invented. lol
[Xperia Z2 General] Haldi4803:
just finished my test about undervolting!

http://xdaforums.com/showpost.php?p=55747470&postcount=38

from 100% to 2% Battery life! Limited to 1500mhz. Tested under FULL load via StabilityTest.

One time with Stock Voltage 850mV and another one with 743mV.

The SoT increased from 3hours 7 minutes to 3hours 40 minutes !
[Xperia Z2 General] Kocane:
Neat. How about the other clocks? Like is there a global frequency we could apply
[Xperia Z2 General] stanley08:
Don't know why, but for some reason, never really been a fan of UV
[Xperia Z2 General] Envious_Data:
Default Voltage value varies depending on the individual unit

Undervolting is safe to an extent and extends battery life

Undervolting can damage cpu life if boarderline safe or past the safety barrier
[Xperia Z2 General] stanley08:
Yh, in some occasions... Noticed it helped battery life. Back when I was using Samsung. And some times it just makes the phone unstable. So I just stayed off it. Lol.
[Xperia Z2 General] Envious_Data:
Fair enough

Xperias it varies, new xperias are stable with UV-ing

Old xperias were just messy for me
[Xperia Z2 General] stanley08:
Well, I never tried UVing my Z2. Maybe i will afterall. ;)
[Xperia Z2 General] Envious_Data:
From min 775 - by 36 is stable minimun

739 for minimal clock

Voltage varies across Z2s due to AVS

Hence why some people can uv by 96 and some others can only by 36mv

Mine is 36mv reduction, any more it becomes unstable
[Xperia Z2 General] stanley08:
Lol. This is perfectly understandable. Sorry my replies are coming really late. Writing my final college exams at the moment. :)
[Xperia Z2 General] knoxploration:
Have you got a reputable citation for this?

My understanding is that while undervolting can cause instability, lockups, etc., it can't actually physically damage the CPU. If that's wrong, it seems rather counterintuitive and I'd like to understand why. If anything, I'd expect undervolting to extend processor life.
[Xperia Z2 General] stanley08:
You would think that the experts that set the default voltage at what it is have reasons for doing so and not setting it lower as dat will 'save more battery' and "extend processor life" ;)
[Xperia Z2 General] Envious_Data:
It would normaly extend life but the S801 is a tiny bit weird

Undervolting seems to burn out the tracers faster than running stock voltage which doent exacly make sense, this could just be a messup on sonys part or qualcomm
[Xperia Z2 General] knoxploration:
Once the warranty has expired, the manufacturer doesn't care what processor life is like. The shorter it is, the sooner you need to buy a new phone or tablet, after all.

Saving battery is something they care about more, but they also care even more about benchmarks and performance. (Take a look at how long the average review devotes to benchmarking, versus battery testing.)

So the answer is: The manufacturer won't set it as low as is safe, they'll take a balance between battery life and performance, and probably tend closer to the latter.

Again, I'd love to see a citation from somebody who knows what they're talking about suggesting that you can damage a CPU by undervolting, but I don't believe it's actually the case.

---------- Post added at 02:48 AM ---------- Previous post was at 02:46 AM ----------

Again, got a citation? Because to me, this sound more like a messup on the users' part than on sony or qualcomm's part -- undervolting shouldn't be able to damage a chip because it's putting *less* energy through it than it was designed to handle.
[Xperia Z2 General] Envious_Data:
I dont have any thing i can refer to due to the fact i dont record my conversations with freinds and neither do i care about googling this just because UV on a S801 Cpu does not make a worth while difference unless your passing 72mV UV

Proccessors came up in a coversation and one of us had mentioned overclocking and undervolting

That evidently lead to android devices with Snapdragon S3 and S801, 1 of them has a Xaeria Z2 but he showed his temp statistics and he said that when he did a -96 UV his device heated up alot more even under minimal usage

For me UV doesnt seem to make even 1*C difference,

Farthest UV posible for my device is -36mV

No real point for even caring too much about this, most phones today are designed to last only 2 years, they may last longer but thats on how you treat it and for a set like the MSM8974AB it wouldent effect its life all too much
[Xperia Z2 General] Haldi4803:
Read this!

http://xdaforums.com/showthread.php?p=55747470

Undervolting itself works fine! But how that works out when it changes frequency... No idea.

And it is a fact that undervolting tends to be most unstable when switching frequencies.... Or not?
[Xperia Z2 General] fccr1990:
Guys, for screen brightness what about this application? The developer is here in XDA. It manages well the brightness vs lumnes ratio and its configurable, but don't know if it helps with battery.

Link: https://play.google.com/store/apps/details?id=com.vito.lux&hl=es
[Xperia Z2 General] Haldi4803:
There is an Lite Version! just try it out!

https://play.google.com/store/apps/details?id=com.vitocassisi.luxlite&hl=es

i'm actually kinda happy with the Sony Stock Automatic Brightness on Minimum. It does use battery! but the screen is NEVER to dark.
[Xperia Z2 General] fccr1990:
I was actually using Pro version as that build lets you modify brightness according to the light readings. For a week, I've been using Sony Stock Brightness on minimum and it actually works great, as when in direct sunlight performs well.

Thanks mate.
[Xperia Z2 General] Haldi4803:
Oh.... so you prefer this Light control over Stock sony control ?

In which moments does sony's fail and this one work better ?
[Xperia Z2 General] goodpenguin:
Google Play Services started appearing in my power management. Before it wasn't there, is it safe to disable it? I noticed my Z2 gets warm even with light usage since I plugged it to my laptop and the battery drains faster. Stand by time is still ok but using it with games and calls makes my phone warm compared to before.
[Xperia Z2 General] oxy_elite:
Photo
[Xperia Z2 General] shalimalli:
Z2 battery life with recent update

Hi guys, with recent Z2 update now I can see 3+ days battery time in stamina mode under power management. Is that normal for everybody? Before it used to be only 1+ day.
[Xperia Z2 General] Envious_Data:
About 8 hours of life that not being plugged in

Battery on 4.4.4 is extremly good

(see attatchment for reboots reaching into the hundreds)
[Xperia Z2 General] V4LKyR:
You charged your phone for a period there. :cyclops:
[Xperia Z2 General] Envious_Data:
it was plugged in for aproximately 2 hours, hence why i said 8 hours of life O.o
[Xperia Z2 General] stanley08:
Lol. You must not charge or plug in between 100% and 1% that is a complete / valid test :p
[Xperia Z2 General] Envious_Data:
Fair enough

When ever i come across any cycles without exessive reboots or plugins ill post :D
[Xperia Z2 General] Wanntedd:
You serious? I once managed to get 8hours 10mins screen on time. I wonder what the screen on time is like on the Z3 :thumbdown:
[Xperia Z2 General] Envious_Data:
People seem to stretch it about 7-9 hours screen on time max

Its a tiny bit better than on Z2 somehow
[Xperia Z2 General] mhyke13ph:
Big Question, Anybody knows why X-Reality Engine turns off itself after awhile? what causes this to happen? Is it Stamina mode? Extended Stamina? etc

TIA
[Xperia Z2 General] ordeniz:
It is because of the stamina mode but I don't know which,just try.When you start charging the phone,it re-enables the engine.
[Xperia Z2 General] kuhno:
I tried none of these tips (except stamina) because I'm already pretty happy with my power consumption.

If I charge my Z2 every two days I have nothing to worry about.

Last stats I remember: 63% after 1 day, 4 hours, 30 minutes of use (even including navigation!)

What I do is setting the voltages for the processor to rather low levels, starting at 600mV in StandBy, reaching 950mV when overclocking to 2457MHz. Anyone else tried undervolting?
[Xperia Z2 General] RyTekk:
I think cause by Low battery mode, and I found Image Enhancement switch to off automatically every reboot.
[Xperia Z2 General] Wanntedd:
Stamina mode does that
[Xperia Z2 General] Matteomagico:
I with the first charge cycle I did about six hours of screen lit with stamina mode activated AFTER 35% and comes exceptions Only telegram whatsapp and gmail (see Attachments ) .. Now That I made ​​the main and Put SOME modules Xposed come jewel it seems the battery SIA decreased somewhat .. can be ? Now for example I'm a mineral 3 telephone on ( reloaded this morning from 10% ( the cell has not Uploaded tonight because I have not connected well ) Up to 100% ) I have used the ' app ac units mate Ed has used 17% battery 'm a Screen on and I'm 84% .. in more than you think affects the 4g 43 Minutes ? that consumes as much battery latter RESPECT to 3g ? That could be used for optimization in more Being able to make it last More Of ? Reality always comes up late in the evening with the ' 8 % minimum .. But I would like to improve type came the first cycle carica..6 hours Screen on were many : / considerate That the phone has 5 days of life : 3 Hope in of your answers thanks
[Xperia Z2 General] stanley08:
Not really a big fan of UV. I hate random reboots. Lol.
[Xperia Z2 General] Farooq95:
So yeah
[Xperia Z2 General] stanley08:
4.4.2 or 4.4.4? I bet it's 4.4.2 ;)
[Xperia Z2 General] Wanntedd:
It's obviously gonna be 4.4.2 cause 4.4.4 is bad with battery life
[Xperia Z2 General] Bapi29:
Hi. Hi can i down grade to 4.2? Battery is really nad at 4.4
[Xperia Z2 General] avercros:
Nope, it is improved.
[Xperia Z2 General] Wanntedd:
Sony Xperia Z2 running android 4.4.4
[Xperia Z2 General] artikle:
On 4.4.4. Stock ROM with STAMINA and greenify. Sync ON. Around 2.5 hours of gaming, 1 hour of hangouts voice calls and remaining is YouTube and browsing. Pretty good if you ask me.
[Xperia Z2 General] Farooq95:
Its 4.4.4.
[Xperia Z2 General] Farooq95:
Here's another
[Xperia Z2 General] diabolus79:
I love this phone!
[Xperia Z2 General] detactiveh2o:
Thanks brother, been using Xperia from quite a long time. Stamina mode is good, but your poat for white balance correction made my day.

Once again thanks for that good post ?
[Xperia Z2 General] dryla:
Tkanks, very good thread. :good:
[Xperia Z2 General] Kocane:
So a constant wakelock isn't nessesarily that bad for ones batterylife?
[Xperia Z2 General] Haldi4803:
Nope not at all.... If it's just keeping the cpu at 300mhz and not keeping modem or Wifi Busy it's not that much of a battery drain.
[Xperia Z2 General] Matteomagico:
Guys but to you as there is the battery life?

Can you tell me why I sometimes lasts me type 1 days and 4 hours and then 8 hours of screen type while now since this morning only three hours of screen and is 57%? I can not explain ..
[Xperia Z2 General] Kocane:
Same use? A huge difference for me is when I don't really leave home (and wifi) compared to the days where I travel with bus on mobile data which is the biggest battery drainer, especially when you're on the move.
[Xperia Z2 General] Matteomagico:
I did 8 hours of screen with the 4g always on and a few times with the wifi..i m arrived yesterday to 27% with 5 hours of screen on, and I used a lot more wifi .. I am using greenify but I do not know if it is improved much .. Do you have any advice for me to further increase the battery?
[Xperia Z2 General] catalin.v:
I don't know if there's more juice in it, what you're getting is already amazing. I can't get 6 hours SOT, I'm using 3G mostly, the phone is 2 months old and I'm on 4.4.4.
[Xperia Z2 General] Matteomagico:
Now I'm at 54% I used lte and wifi more the latter and I only did 3 hours of screen .. What can it be? What should I improve? The 4g this time I used it very little .. I must decrease the CPU do something? Helpppp meeeeee please [emoji24]
[Xperia Z2 General] NirmalSitaldin:
Safe Mood Issue?

Hey guys, let's say you have a battery draining issue and you boot into safe mode to see if it's a third party app problem, but the phone stays draining fast in safe mode! What is the problem if this occurs? I know it's not a third party app then...
[Xperia Z2 General] bdithug:
Have you performed a software repair via pcc?
[Xperia Z2 General] NirmalSitaldin:
No I haven't yet, but the next time sth like this occurs I'll have no other choice.. Bu t I hope it won't
[Xperia Z2 General] bdithug:
I'd try that first. If that doesn't work, flash your current firmware ftf file via Flashtool. Those steps would be the first thing I do.
[Xperia Z2 General] NirmalSitaldin:
Ok, thanks :) It's the first step of rooting right?
[Xperia Z2 General] dizxrt:
Led control

First of all I would like to say that this thread is awesome, helps a lot!

Anyways, I'm wondering if anyone would happen to know which app is best for controlling led notifications and has smallest impact on battery life?

I've been using Light Flow but it happens to have a lot of wakelocks, and I think it's having some impact on my SOT, so I would like to know which app you guys use?

Thanks!
[Xperia Z2 General] stanley08:
Light flow is the only one i know actually, I will research on this and get back to you. But personally, i don't fancy such apps. ;)
[Xperia Z2 General] mhyke13ph:
Heres mine: Z2 with Smartwatch 2(9hrs) a day and MDR NC31(1+hr a day)(Hi-Res+NC) and auto max brightness
[Xperia Z2 General] stanley08:
Good time, what rom?
[Xperia Z2 General] mhyke13ph:
Stock rom:)
[Xperia Z2 General] dizxrt:
Yeah, I've been using it for quite some time, the wakelocks might not be responsible for any battery drain so I'm just gonna put it to the test against Light manager and see if it's just a placebo :)
[Xperia Z2 General] stanley08:
4.4.4? U know the region of this rom?

Testing is good. See what works for you best and of course, dont forget to share findings.. Everybody learns :)
[Xperia Z2 General] dizxrt:
Also, it might have been said already, but I noticed a lot of com.sonyericsson.android.wakeup.fastdormancy wakelocks, and as soon as I disabled Fast Dormancy it disappeared from the list.

Guess my carrier doesn't support it or something. :)
[Xperia Z2 General] Kocane:
I've seen wakelocks from fast dormancy too.. I contacted my carrier and they said it was supported.. I dont know

Also, your earlier question about light control.. may i suggest gravitybox? its excellent.. xposed n all
[Xperia Z2 General] Abdl:
U saying light flow consumes battery?
[Xperia Z2 General] dizxrt:
I have no idea, they may not have any impact at all.

I didn't think of using the led control of GravityBox, might have to try that, thanks for the tip!:)

I'm not saying it does, the wakelocks might be harmless, but it sure is on top of the Alarm tab in bbs.
[Xperia Z2 General] Haldi4803:
The Question is does it drain more Battery or not?

might very well be that the wakelocks drain battery but the switched mobile connection saves way more.

to test this you'd need to do multiple tests with the exact same daily usage!

Deactivate Fast Dormancy, then reactivate it, deactivate it again, then reactivate..... 6 tests 3 times with and 3 times without.

The Problem is that i fail to do the exact same things 4 days in a row xD
[Xperia Z2 General] Goldsack:
Mi longest, original soft Sony.

Gesendet mit einem Xperia Z2 mit Tapatalk!
[Xperia Z2 General] dizxrt:
Yeah, it's way too hard to determine that, but it doesn't seem to affect it that much.

Whatever I do I can't seem to get more than 5 to 5:30hrs SOT. :D
[Xperia Z2 General] stanley08:
I play Injustice all the time these days. 1hr SO is 25% battery playing Injustice. :p
[Xperia Z2 General] Haldi4803:
Hahaha did you try underclocking ? 330mhz gpu and 1.5ghz cpu ? i wonder what would happen :D
[Xperia Z2 General] romdroid.:
Turn off Google now, GPS (even of its on battery saving mode it will drain battery) and you'll see good results with the battery. Even on 4.4.4
[Xperia Z2 General] patek1968:
Nice tip.thanks