yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 General] Don MC:
Only 2 solutions:

1. Lower your brightness.

2. Use the screen less.

Seriously, it's usually a good sign if the screen is at the top of the list. Just shows other apps aren't hogging the battery even more than the screen.

The screen's battery consumption is constant whenever it's on. It doesn't have any "bugs" that suddenly cause it's consumption to go up. See it as a light bulb of sorts. Turn it on and it constantly uses 60W of power. A light bulb cannot have "bugs" that cause it to suddenly draw 600W. Same with the screen. The biggest battery consumers in the screen are the backlight LEDs.

Actually, on an LCD, dark themed apps use more energy than the light ones. Even the black pixels are backlit on an LCD and a very dark theme makes you want to amp the brightness. An AMOLED on the other hand benefits from black backgrounds, but that's an entierly different technology.

Best for an LCD would be a light theme and reduced backlight brightness.

EDIT: A dark theme would be like using a very dark lampshade and having to switch to a 100W lightbulb because the room gets too dark.
[Xperia Z2 General] stanley08:
Lol. I think this is perfectly normal. Now as i type this... I'm at 10hrs 30mins total time, with 4hrs 40mins screen time and still 61% left. Screen usage is 54% on consumption list. :)

Battery and more free ram yes.
[Xperia Z2 General] celsior360:
Exactly
[Xperia Z2 General] stanley08:
Lol. cool. how much screen time? For some reason, Xperia Keyboard is always way up that list for me. lol.
[Xperia Z2 General] jayc137:
I get 6hrs~ screen time on my Dual sim phone with medium brightness and having 2100 mAH battery.

Is it decent ?
[Xperia Z2 General] Vivek_Neel:
This thread is for z2 my friend.

:)
[Xperia Z2 General] jayc137:
Just asking, not trolling ;)
[Xperia Z2 General] kingrion88:
close to 5 hours SoT yet 60% left.. wtf.

To be honest, it is perfectly healthy if the screen usage is at 50% percentage. You could however lower it I think, by setting lowest brightness and auto brightness off. Another way is to basically USE your phone LESS. lol.
[Xperia Z2 General] celsior360:
Just use our potable battery charger in emergency
[Xperia Z2 General] Lolento:
Anybody notice that the phone is more prone to running warm and also uses more battery during screen on times with Stamina mode ON?

I need another day to fully test this out but this seems to be happening on mine.

I am actually seeing better battery drain with Stamina mode OFF.
[Xperia Z2 General] stanley08:
Lol yes. Phone finally went out at 19 hrs total with 11 hours screen time.

If ur theory is right, which i reaaaaaally think it's not... And i'm getting 11 hrs screen time on Stamina mode. Wonder how much i would get without it. :)
[Xperia Z2 General] Lolento:
Well, depends on what you're running on your phone, r u running a custom rom?

I'm using Romur 3.1, it could be due to certain parts of the stock rom being removed in these custom roms leading to error loops in the background.

It doesn't mean that it necessarily mean the issue is on every phone.
[Xperia Z2 General] stanley08:
TOTALLY stock. :)
[Xperia Z2 General] Haldi4803:
And this is why I will never have good battery life :( the reception in my room is horrible!

BTW,doesn't the phone automatically switch to 2G when connected to WiFi?

At least thats what it looks like to me!
[Xperia Z2 General] Don MC:
I think it only switches off mobile data when on WiFi. Although it does say "Nicht verbunden". That means 3G (UMTS) is available but not connected.

Mobile data uses more battery than WiFi and may also cost you money if you're not on a data plan.

3G/2G are also switched according to signal strength.

-107dBm is pretty poor, I must admit.
[Xperia Z2 General] stanley08:
No mate, it only turns mobile data off. But phone will still be receiving 3G reception. Mine i set to GSM only. :) As I'm always on WiFi
[Xperia Z2 General] stanley08:
New Battery Test Stats with Extensive usage

GSam Battery Monitor Pro

Screentime

Battery Use
[Xperia Z2 General] belloni:
I don't get how you have such little "Held awake"?
[Xperia Z2 General] Don MC:
Maybe he's following his own tips?
[Xperia Z2 General] stanley08:
Probably because I have Greenify. Donate version. :)

Lol. I am as he said.
[Xperia Z2 General] belloni:
Fully aware he's using his own tips...

Don't think it's worth installing greenify on a non rooted phone.
[Xperia Z2 General] Haldi4803:
it is !
[Xperia Z2 General] Lolento:
Just reporting back.

I'm running Romur 3.1 Rom with Greenify (w/ Xposed Module). The battery drain with or without Stamina Mode ON does not make a noticeable difference to me. Battery life is great though, I get more than 4hr of screen time and then more than 24hrs of use.

I am just one data point, so hope others will report back as well.
[Xperia Z2 General] belloni:
Ok i installed Greenify again and set up tasker to use the shortcut when I turn the screen off, but when I wake the device, it then loads the apps that are to be greenified to automatically force stop, this is pretty annoying each time I use a greenified app then turn the screen off!

Any ideas?
[Xperia Z2 General] stanley08:
It is, you get to force close apps running in the background. But of course it's more efficient on a rooted phone.

WiFi or Mobile data? 4 hours is kinda low tho...
[Xperia Z2 General] FoxForceFive:
Nope, I tried the same thing.

Was hoping I could live without rooting for a while, but it's looking increasingly necessary.
[Xperia Z2 General] jerrychf:
Thx for your effort, i also tried something setting in my xperia z2 to made the battery life more longer, even i am not to root my phone and i am in Homg Kong where so many buildings around us, the 3g, 4g signal always jump between, it really cost a lot of battery sometime.
[Xperia Z2 General] Haldi4803:
there is a Widget. it does greenify all apps when you press ist, you can place it on the homescreen.
[Xperia Z2 General] belloni:
Hi, I've done that but it's annoying when it brings all apps up to be greenified, then automatically forces close them. Especially when using tasker.
[Xperia Z2 General] stanley08:
Greenify works best when you are rooted. That is a fact. That's how it works Non-Rooted

Yes, Reception is important for battery life. And yh, glad the thread helped...
[Xperia Z2 General] Stickrundude:
Thanks :P

I came here just to find the right White Balance values but got some useful tips along with it ,So yeah, Thanks :D
[Xperia Z2 General] jatinps:
One tip is to add the LTE/4G option under quick settings which allows you to turn on 4g/lte only when needed, else puts the phone into 3G which is better.
[Xperia Z2 General] stanley08:
I think I covered this already. :)

Cheers mate! :)
[Xperia Z2 General] jatinps:
No I meant enable the lte setting widget in quick settings so that you don't have to go into Settings > More... > Mobile Networks. then change Network mode. This way I'm mostly in 3G but when I need faster internet I just drag down quick settings and tap lte.
[Xperia Z2 General] BlackS0ull:
many thanks for this great guide [MENTION=4702699]stanley08[/MENTION]

thanks!
[Xperia Z2 General] stanley08:
You welcome mate... Glad it helped you. :)
[Xperia Z2 General] derLoki:
Nice work man. I am currently testing how long I can use my phone with these settings under normal circumstances.

But I have to say, sometimes I have the feeling, the Apps I allow to get network access even when the screen is turned off seem to

take longer time to realize there was a new notification.

Sometimes I have the feeling they don't get the pushs at all. :(

Maybe I'll turn this feature off again. But I was really surprised about the animation scale stuff. Thats awesome. Feels even faster now.

The White-settings.... hmmm I built them in, too but I have to say I don't see differences xD. But I think I leave it at that.

Thank you mate

Cheers
[Xperia Z2 General] Sango2:
Speaking about maximizing life, does anyone know if enabling the "Tap to wake up" feature use more energy or makes no difference with it off by default.

What I mean is that is the touch screen part active but just ignoring the taps while it's not enabled or it's actually turned off.
[Xperia Z2 General] paras:
I think it would have some effect on the battery for sure

Sent From My Sony Xperia Z2 D6502 White .402
[Xperia Z2 General] leandronb:
how to use location based wifi with location disabled?
[Xperia Z2 General] stanley08:
You welcome mate! :) Please report back on ur battery life.

I think i noticed it kinda does, but nothing serious. Use it if you need it. :)

Lol. Good question. Forget LBW, turn off location dats a bigger battery drainer...
[Xperia Z2 General] keithljh:
Whats the default rgb values?
[Xperia Z2 General] feis:
0 0 0? :D
[Xperia Z2 General] cchant:
There's a button that says default In the top right corner.
[Xperia Z2 General] seventieslord:
great thread. Just wondering why "What's New" isn't on the list of things you can safely freeze. I froze it and everything seems ok.

Also Track ID and Track ID TV.
[Xperia Z2 General] stanley08:
I will update the list soon. Thanks for the kind words :)
[Xperia Z2 General] psykoly:
I love your tips&tricks stanley.Thank you very much :)

D6503 cihazımdan Tapatalk kullanılarak gönderildi
[Xperia Z2 General] stanley08:
Your kind words are very much appreciated... Thank you! :)
[Xperia Z2 General] stanley08:
Added an extra tip :)

16. Sync: Of course disabling Auto Sync will extend your battery time, but then your smartphone might as well not be called a 'smart'phone anymore. So, even if you leave Auto-Sync on, be sure to make sure that your phone Auto Syncs stuffs that you actually want it to, things that you really need! Especially under Google Sync. Open Settings, Scroll down to 'Accounts' area then select Google. After you select Google, now select ur main account there which i guess should normally be the first one. Not sure, I only alays have 1 google account on my phone. After you select it, you will see a list of the items it is actively Syncing. For me here, the most important to me are 'Sync Contacts' and 'Sync Gmail' and those are the only two I leave active. I untick all the rest. You should do this according to what you use, or do it like Stanley! :p You can apply same to other google accounts you have on ur phone.

Cheers! :D
[Xperia Z2 General] rappa619:
For me, anytime I play a game, the sync game data comes back on again by itself.
[Xperia Z2 General] stanley08:
It ticks by itself? U are playing with Google Games? Or Play Games? Forgotten what it's called. Lol.
[Xperia Z2 General] rappa619:
Neither, I have 2 games on my phone right now, one is words with friends and the other is Riptide GP2. I go into the autosync options for Google and I turn off all of them, even contacts. Then sometime later when I check back, Sync Game Data will be checked again.
[Xperia Z2 General] stanley08:
Don't worry about them. It doesn't matter. leave it if it ticks on it's own.
[Xperia Z2 General] sofia-captivate:
Why is this thread not stickied? Does anyone agree this should be on top on stickies?
[Xperia Z2 General] stanley08:
If you want the thread to stay up, click the 'tip us?' link (http://xdaforums.com/votenews.php?topic=2768544) at the top right of the first post. Or hope that they add it to the General Section description like they did with the Note 3 section. :) Here - http://xdaforums.com/galaxy-note-3/general

Cheers! :D
[Xperia Z2 General] sofia-captivate:
tipped :) Thanks for everything my phone is flying haha. I love you man no homo
[Xperia Z2 General] stanley08:
I love you too. Homo much. LEL! xD
[Xperia Z2 General] Xaroc8:
Pretty hefty guide, but pretty much same rules apply to all phones. Disable all the features you probably bought it for in exchange for battery life :P

On a more serious side. I'm very impressed with the battery life on my Z2, it's one of the longest lasting phones I've had, and as a blogger, I've had 33 different Android phones. Needless to say, I expect a lot of my devices, and compare them quite critically. I think the only battery saving measures I take is the location based WiFi which is a huge help in itself, and disabling the always scanning wifi as well.

In a nutshell, I think the Z2 is one of the very few phones I don't feel I really need to disable stuff to get a long lasting battery. However, very nice depth guide :good:
[Xperia Z2 General] stanley08:
Lol. Oh well. Thanks mate! ;)
[Xperia Z2 General] stanley08:
So I decided to put CM Nightly ROMs to the test, and I want to say that it did amazingly well. Feels better than even Stock. As you know, here there isn't 'Stamina Mode'. The results are below. You will like what you see. :) Follow the tips on the first page. Cheers! :D

SCREEN TIME

BATTERY USE

GRAPH

RUNNING APPS

GSAM OVERVEIW

GSAM APP CONSUMPTION
[Xperia Z2 General] belloni:
Could you provide a link to the ROM please, thanks.
[Xperia Z2 General] arash64a:
Wo0oW

Which rom you are using?
[Xperia Z2 General] belloni:
Damn it, my bootloader is locked so won't be able to flash any rom, just firmware... Waaaaahhh
[Xperia Z2 General] stanley08:
http://xdaforums.com/xperia-z2/orig-development/z2development-cm11-android-4-4-t2809789/

Download links here however - http://download.cyanogenmod.org/?device=sirius

You can always unlock it, btw.. Locked BL means u can't flash custom kernel. Not custom rom. But u can't flash CM anyways, as it has a custom kernel..
[Xperia Z2 General] belloni:
Oh right fair enough.

I'm quite limited then to what ROM I can flash, shame :(
[Xperia Z2 General] stanley08:
Yes, Kinda. But it's always better to just unlock the BL and flash whatever u like, whenever you want to. :D
[Xperia Z2 General] xeyx92:
Guys,

Try snapdragon battery guru. My phone lasts now over 3 days. Without battery guru i had 2 days battery life.

Sorry for my bad english:D
[Xperia Z2 General] stanley08:
Screentime?
[Xperia Z2 General] xeyx92:
Sorry, i can tell you in 3 days because now my battery is full^^
[Xperia Z2 General] Envious_Data:
[MENTION=4702699]stanley08[/MENTION]

google apps apear to cause alot of problems, i found with sevral devices that after removing almost all google apps (aside framework, services and gplay) battery life is heavily improved

-> there is a note for ppl and or OPO (original post owner)
[Xperia Z2 General] stanley08:
Okay then ;)

Yes, I have everything disabled google except play services and play store. Btw, it's all mentioned by the 'OPO'
[Xperia Z2 General] Envious_Data:
.. my bad, im blind xD

anyway i found Google search creates uneccisary system load, hence slowing down less powerful devices like Xperia S for example

i disabled Google search on my xperia S and UI becamse slightly more responsive, i cant say the same for my Z2

facebook app does a simular thing, it seems to idle in background just taking up about 200mb of ram, about 120mb on avarage

same goes with alot of webbrowsers, apart firefox, chrome, boat, base android...
[Xperia Z2 General] beni8978:
People,I think when you turn off Motion,Smart backlight and double tap to wake the battery gets even better.
[Xperia Z2 General] justbeck:
Hello people,

First of all,thank you for your precious advices.

I hve now improved.my battery life significantly.

Here are my screenshots after one battery cycle and medium using.

What do you think?

Unrooted,mobile data on most.of the time (usually 4g)

Greenified everything except the apps in screenshots.Curiously, the facebook messenger seems to be the biggest battery consumer. Disabled some of the built-in apps.
[Xperia Z2 General] rhystagram:
.314 stock, rooted, using only greenify & STAMINA 100% moderate use.
[Xperia Z2 General] stanley08:
They things u mentioned will save more battery, no doubt but the idea is turn off what you don't use and the stuffs u use, use them :p DT2W, I don't use so it's off. But someone who likes it, probably someone with small hands, would need this :)

Cheers mate. Wonder why Messenger is high up there, try login out then log in again. Better still, uninstall and re-install it. Disable chat heads to save battery also. Personally, don't like em. Don't know about u. Cheers! :)
[Xperia Z2 General] justbeck:
Hello again,

I' ve made a new battery test with my xperia.Moderate use,most of the time browsing,chatting and taking some photos. Same as last time: stamina on for 0-100%(added emails and mssenger apps to exception list)and low battery mode for 0-20%.Unfortunatelike y, facebook messenger is still the biggest consumer.... I can't explain why. I didn't uninstall the app because I don't think this could be a logical explanation for hard consuming.

The difference between my first attempt and this one is that I've disabled 4G...the mobile data was active all the time...on 3g/gsm auto. I've also used endomondo app for tracking my roller skating results for about 3 hrs...this was my 2nd consumer,during this time I've always had a prompt which told me that the app prevents the phone from staying in "stamina"mode.

I've noticed however that I had not my latest sw fw installed, I will do that now,after posting this screenshots.

Also during my photo session the camera automatically turned of for several times because of excessive heating... I've read that the sw upgrade might fix this problem...is that true?

If not..how did u solved this problem if someone had any? I' ve heard that this is a well known issue on xperia z2's.

Overall I'm satisfied with my battery life..for me a full day with extensive using it's enough.

Also any other tips regarding battery life are more than welcomed.

Cheers,

Beck
[Xperia Z2 General] Black LIsT:
Wow, the Facebook Messenger consumes more battery than the screen. :eek:

Oh can any one confirm that disable Fast Dormancy can make the battery last longer with 3G/LTE?
[Xperia Z2 General] edge3uk:
Absolutely simple fix for the messenger problem. Disable location in the messenger settings, or disable location entirely. It's reporting 22hrs of GPS usage. Very impressive you can get through a day on that! Haha!
[Xperia Z2 General] stanley08:
Turn off GPS mate. It's one of the tips. And mate, try to reduce the size of ur screenshots. I use tiny pic. :)

Yep. That GPS. Impressive to get through a day indeed.
[Xperia Z2 General] deep7177:
z2

Here are my results..:D

8+ hr screen time
[Xperia Z2 General] beni8978:
One of the best battery lifes

How?
[Xperia Z2 General] deep7177:
Stamina mode On the whole time(restrict device performance only nothing else activated), screen brightness at 30% auto. on wifi 65 to 70%.

PS. Done hard reset after updating to 3.14
[Xperia Z2 General] gautampw:
Can anyone tell me extended usage mode restricts cpu to what frequency?
[Xperia Z2 General] heorung:
[MENTION=3650911]gautampw[/MENTION] : 1.1Ghz
[Xperia Z2 General] gautampw:
From the minor stutter I guess it even caps screen to 30fps
[Xperia Z2 General] heorung:
maybe they restrict GPU frequency as well
[Xperia Z2 General] effective:
It is for sure as they work together.
[Xperia Z2 General] faithraze:
z2 coming soon

Hi, my operator will send me a new z2 next week (last year I had g2). With this thread, it kinda helped me decide which phone to chose for annual free phone. I am a battery life conscious geek. So thanks!
[Xperia Z2 General] stanley08:
You are welcome, just do the steps that are helpful to you... And leave the rest. The idea should be Max battery / Max Usage :)
[Xperia Z2 General] edge3uk:
It's funny when the older generation get their hands on these things. My dad's currently on 4 days, with 33% remaining. No idea of screen time, but probably not a lot haha
[Xperia Z2 General] stanley08:
Some screenshots would be nice to look at. Take it for a sec and see if you can post some. :)
[Xperia Z2 General] edge3uk:
Haha I can't, it's my dads and he's in zante. :)
[Xperia Z2 General] beni8978:
Do a factory reset ;)
[Xperia Z2 General] stanley08:
My elder brother once got a BRAND NEW Blackberry Curve 3G, back then. From the store, he immediately took put his simcard in the phone and started making calls and what not, I tried to advice him that it was bad to use the factory charge of them battery for regular operations except just going through the phone at the store to see if it is in good shape. Just for the heck of it of course, as it is a brand new phone. He refused and told me that nothing would happen. Before 2 weeks, his battery was having issues, SERIOUS ISSUES. It would run flat as soon as he leaves the wall, he was always hugging the wall, even lost up to 50% everynight. It wasn't funny but I had a good laugh about it, because why not?!

What I'm saying is that, maybe it's just a personal ritual of mine, dat and the techies at the store always advice Full charge first before you start using the device. But for each and every of my devices, I NEVER use the factory charge, nothing more than 1% off it. I charge every brand new phone full, leave it an extra hour, turn it on and leave it an extra 30 minutes before even attempting to use it. And that always worked for me, PERFECT Battery always. And as I said, it's a personal ritual but it works for me.

On the other hand, it could EASILY be an app you installed or anything really that's causing it, but if it's not... You are in for a long looooooooong ride my friend! Cheers! :D
[Xperia Z2 General] cheapshot789:
OK so here are my results after first full charge and moderate usage. After about 15% I was really trying to kill battery so I can do a fresh full charge. I just have greenify and most apps added except system ones. Really impressed by battery coming from LG G3!
[Xperia Z2 General] MurphmanL:
Well, I took the Z2 out last night and by time I came home I was down to 37% battery, LTE switched off, about 2.5 hours of screen on time on auto brightness...

What is going on ?!?! :(

I have this morning fully charged it overnight and used the Sony Update Service on the PC to factory reset and it has redownloaded the firmware.

Will wait and see how today goes... I was hoping to hit at least 6 hours of screen on time per charge, my Note 2 could do roughly 3.5-4 so surely this isnt too much of an ask?

Will have to start looking at Greenify and stamina mode as these are teh only things I haven't tried!
[Xperia Z2 General] MaximoMark:
Follow the the guide that the op put in his first post and you're guaranteed to get good battery life. I did most of what he has said and got 7 hours on screen from my 1st full charge!
[Xperia Z2 General] MurphmanL:
I think I've stumbled accross the problem... when I install the rom I let Google Play Update everything and one of those updates was Google Play Services....

Seems to be a lot of talk around the net with this being a battery drain since the new update, does anyone concur?

I took the phone off charge at 100% at 8am this morning, currently sitting on 66% :(

4h 32m on battery...

screen 49% - 59 mins SOT

Google Play Services- 15% - Keep Awake 2h 55m 51s

My god what is up with this blasted phone. I really want to love the thing, it's an epic phone but I just cant seem to get the battery to hold a charge! lol

Has anyone else had this google play issue? I think I'm going to have to factory reset... again... and this time not update Google Play Services :(
[Xperia Z2 General] MaximoMark:
Disable all the Google apps if you don't use them I.e Google play book, Google music etc oh, and maps. Then in the playstore settings switch off app auto update.

That should sort your problem with Google services.

Edit: Also, switch off Google now!