yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 General] chesterr:
Yea the phone is absolutely amazing. I love everything about it. I'm just getting used to the size of it too.

What's weird is that phone gets hot like hell and I can see that the battery drains really really fast.

If it's getting hot like this that means the battery drains fast too and that means low battery life :(

anyways if it doesn't fair well today I will get a replacement. if not going for Z1 Compact cause it gave me better results and I loved it.
[Xperia Z2 General] Rajaasim1980:
These two issues heat especially while recording 4k video and low battery life will affect the sales of z2 which has brilliant specification otherwise.. I am confuse between z2 and s5..if s5 had 3gb RAM ..i dont even think twice to pick it..its battery is even better than note 3 and that also removable
[Xperia Z2 General] nikola1970:
Im sure Sony will fix heating problem so dont worry. :)
[Xperia Z2 General] insom:
Who's got bad battery like mine,did you transfer data from old phone to Z2 by xperia transfer before set up the phone after 30mins charge?
[Xperia Z2 General] kartoonz:
hi guys, how do we identify if bad signal is causing battery drains???
[Xperia Z2 General] ste1164:
No need for 3GB of ram stop obsessing about specs. The S5s battery life is not better than the notes.
[Xperia Z2 General] Jackos:
Well, the additional 1GB of RAM was a dealbreaker for me.
[Xperia Z2 General] bombdog:
If "Cell standby" is up there with the display in terms of consuming the battery, that would be a good sign..
[Xperia Z2 General] vlawrence0324:
Also check the time without signal. If the % is high you are in a bad reception area and the phone is constantly looking for a signal which drains the battery
[Xperia Z2 General] chesterr:
Well the day number two is also really bad I guess. well I charged the phone and let the phone to idle a bit and it's funny when I got the phone to use it in the morning and the battery life reset itself. I took screen shots of it.

View attachment 2727299View attachment 2727300

But by 4:43pm the battery died to 34% :(

View attachment 2727308View attachment 2727309

and then I went to gym listened to music and came home with 10% battery.

By 9:22pm it's 3% :crying::crying:

View attachment 2727327View attachment 2727328View attachment 2727329View attachment 2727330View attachment 2727339

I hope Sony fixes this issue cause My Girlfriends Z1 does a better job 20h of battery life with 6h of SOT and she's always on the phone.

I think I'm gonna have to get a replacement. :(
[Xperia Z2 General] cedropol:
Decisively your phone is too long in awake state - it can be caused by any aplication running in background...
[Xperia Z2 General] chesterr:
I can't actually think of any app which would do such, I just uninstalled two apps which would make a big fuzz but I had those two apps on my Xperia Z and it gave me a decent battery life of a full day. but let's see tomorrow's results too. And more importantly the phone gets really hot when I keep the display on or listen to music. I didn't have problems with 4K video recording and I could go for 10mins without an issue. but this battery is only issue :(
[Xperia Z2 General] kartoonz:
Da ****... This ain't good... Did you try wakelock detector?? This puts me in a dubious situation... :(
[Xperia Z2 General] Meltdown1982:
Found a bug

Hey guys,

I had battery problems too when I received my Z2.

I tried everything.

Disable NFC

Email Sync every 30 Minutes

Stamina on / off

....

My Battery drained every hour -10% in standby without using it.

When I used the Z2 heavily (phone / whatsapp / sms / Internet / Facebook) after 4 hours it was empty.

I found the issue... I was using the build in Weather Widget on my Home Screen, because it was looking nice :)

But after removing it my battery Problem was gone.

Current setup:

NFC disabled

only 2g/3g network (LTE 4g Disabled)

Display (automatic mode)

Sync 30 minutes

NO Stamina Mode

Now I can use my phone the whole working day (10-12 hours) and I have still around 80% when I use my Z2 normal.

When I use it heavily i still have 70% in the evening.

Give it a try!
[Xperia Z2 General] insom:
i had battery problem too and i took my Z2 back today to CPW and i get refund.i will buy new handset tomorrow from 3.Hopefully this one will be good device.
[Xperia Z2 General] beni8978:
You should better turn off NFC,3G or 4G,location to device only,brightness on 50% auto and give it a try then.
[Xperia Z2 General] paras:
I wish we could get great battery on atleast 75% brightness.

Sent From My Nexus 5 Stock 4.4.2
[Xperia Z2 General] Rajaasim1980:
Why no need ? Lol you may not need it but those who do multitasking will welcome it..some people dont need 20 mp Camera and waterproof thing either but others like having these plus

As far battery of s5 ..read here it even compete with tablets

http://www.phonearena.com/news/Gala...lagship-has-the-endurance-of-a-tablet_id55077
[Xperia Z2 General] ste1164:
Well for one phonearena are usually biased and after their shoddy reporting I don't like them. Most sites don't say that and seen as I own both I can tell you it doesn't. No apps or multitasking takes advantage of 3GB it's just a power waste. Android manages multitasking itself fine with 2. If anyone can show me an actual need or someone who uses more than 3GB fine.
[Xperia Z2 General] Rajaasim1980:
I actually had note 2 before with 2 gb RAM and RAM usage was always 1.80 percent..even after clearing all background apps..i had only 412 mb spare

Its not just about phonearena..every one is talking postive about S5 battery life..i am only inetrested in z2 because of design;speaker and one extra gb RAM plus better waterproof rating which is 8 but it seem sony dont test their devices before release as heating problem is being reported
[Xperia Z2 General] edge3uk:
How did you figure it was the weather widget?
[Xperia Z2 General] chesterr:
Are you for sure bro? cause mine discharges drastically. and it's sooo frustrating.

I'm gonna give it a shot now.

---------- Post added at 10:16 AM ---------- Previous post was at 10:07 AM ----------

You know it's the same settings in Z1 too. I mean NFC is on all the time 3G or wifi is on and the location services. I know for a fact that Z2 can go for more in battery. well after today I am gonna see what's gonna happen to my Z2. over all the phone is an awesome except for the notification sound. I guess they'll fix most of the issues in the next update including the drastic battery drain.

this after I got up in the morning. LOL I slept for like 8 hours haha :p
[Xperia Z2 General] napkun:
My android system seems to be a lot higher than everyone else's in this thread. It's also being kept awake for 15+ hours, is this normal?
[Xperia Z2 General] chesterr:
what were your settings? like auto-sync is on and NFC and 3G/4G stuff. this is far better than what I get lol
[Xperia Z2 General] napkun:
4G is always on, I turn wifi on when I'm at school or home, auto-sync is on, brightness set to auto, all stamina mode settings are enabled and only my alarm app is white-listed, NFC is off unless I'm actually using it. Today I've had about 2-3 hours of music playback, around 30 minutes - 1 hour 1080p video playback, and browsing on chrome
[Xperia Z2 General] Haldi4803:
Nobody here has a rooted phone to install better battery stats as system app?
[Xperia Z2 General] jjpro45:
I had the same problem and I realized that double tap to wake was causing the problem. I deactivated it today, rebooted and my battery consumption is so far normal.

My Z2 didn't go to deep sleep. I used CPU Spy to analyze the CPU usage and I noticed that I had 5 minutes of deep sleep and about 8 hours of CPU Frequency 300 MHz. And that's just I activated double tap to wake.
[Xperia Z2 General] Jackos:
+1

Double tap to wake causes battery drain.
[Xperia Z2 General] Seifer1975:
I have been using double tap to wake since day 1 with no issues. It is a really useful feature to me.
[Xperia Z2 General] Jackos:
On which firmware are you? .69?
[Xperia Z2 General] Seifer1975:
17.1.A.2.55
[Xperia Z2 General] Publicglutton:
Yep me too....no excessive battery drain either....;)

same firmware too..17.1.A.2.55
[Xperia Z2 General] KevinB88:
No problem here with.55

Gesendet von meinem D6503 mit Tapatalk
[Xperia Z2 General] BanziBaby:
Here's my battery stats, phone was charged to 100% then flashed the .69 firmware then taken off the charger, so device was downloading apps & restoring account then games where run so they could download the additional data needed. Wifi on all the time during this untill it was switched off at night while sleeping, data, nfc, location & bluetooth off, usually I get about 2 days usage after phone is all setup.
[Xperia Z2 General] napkun:
Thanks, disabling the tap to wake reduced the android system usage in the battery stats, is this possibly a bug in the firmware? I have a tablet Z and tap to wake has been on since day one and there's no excessive usage in the android system. I'm running 17.1.A.2.69 on my Z2 currently
[Xperia Z2 General] PiskopatYazar:
This is my first time use of my z2 and Im pretty impressed with the battery life.

When I got my phone it had 63% charge already I have charged it another 4 hours or so.

Everything was on 4g location wifi

I started using stamina mode when it was 22% which was last night when I go to bed I dont need wifi or 4g while I sleep anyway.

I totally drained the battery and now charging it again.

After I took the screenshots it lasted another an hour.
[Xperia Z2 General] stanley08:
You hae bad reception fix that, you get better battery. Switch to 2G (EDGE) only when on WiFi. Watch ur battery last longer :)

Or use this app here if you are rooted - http://xdaforums.com/nexus-4/themes-apps/app-intelli3g-2g-3g-4g-toggle-battery-t2580234

For more battery saving tips, check my thread here - http://xdaforums.com/showthread.php?t=2579075

CHEERS! :D
[Xperia Z2 General] chesterr:
First of all I gotta say sorry to not to trust this phone and I am really really impressed by this phone and this is the best phone ever period.

I charged the phone as usual and unplugged around 10am (7th May) and used it as usual

View attachment 2733878View attachment 2733879,

screen shot is around 10:37pm

View attachment 2733885View attachment 2733886.

and then around (4am) went to bed with 41%

View attachment 2733902View attachment 2733903View attachment 2733904View attachment 2733905View attachment 2733909.

Woke up around 10am again and used the phone as usual.

And it dropped around 27% around 1:20pm on 8th and then I wanted to use GPS and Maps so badly so I decided to use maps to go my gym cause it's a 15mins of walk. and through out that 15mins I was using Navigation app with 3G, Not 4G since China doesn't have 4G.

View attachment 2733856View attachment 2733857View attachment 2733858

And I was using the noise cancellation headset and it drains the battery as well, After usage of maps it went to 10% though

View attachment 2733867.

But through out the 2hours it managed to do a good job and at about 7pm it was 3% and it did a great job.

View attachment 2733868View attachment 2733909

THIS PHONE IS A BEAST.

This is all all auto, Auto-sync, 3G - 30%/WiFi - 70%, auto brightness, NFC, GPS on,

and this is the current stats

View attachment 2733927View attachment 2733928

It was the tap to wake caused the issue a lot for sure.
[Xperia Z2 General] kartoonz:
damn :eek: this is pretty impressive... and how long was it on wifi?? nice to see the 3g stats...
[Xperia Z2 General] chesterr:
Whenever I go out it's on 3G I never turn it off and even when the low battery mode turn it off I turn it back on.

I say this was roughly 7hours of 3G and the rest is WiFi, I think I am gonna try turning off WiFi and see how it goes. :D

Over all I think Sony really nailed on the battery department. and yea forgot the screen department too :D :p :victory:

Hope they'll have tap to wake fixed in next update.
[Xperia Z2 General] kartoonz:
yeah... thanks for sharing the stats... pls do share the 3g stats as well, perhaps with no or little wifi usage.. would appreciate that mate...:laugh:
[Xperia Z2 General] flumps:
On a full charge with stamina disabled I get a quote of like 2 days, 10 hours and it's true to that as well. Very impressed with the battery life
[Xperia Z2 General] mujj:
Second day with the phone. Second full charge. Used it quite heavily today.

- Quite a few photos and two 1080p vids

- 2h of phone calls

- 1 hour of gaming

- Mixture of 4G and WiFi all day

- Auto sync on all day: social media, 4 email accounts, etc

- Auto-brightness

- Used a lot of browsing, messaging through whatsapp and just playing with the phone, trying out features

- Haven't tried stamina mode or anything

- Tap to wake up enabled

Very impressed :D Gets me through the day perfectly. On 4% now and says an hour remaining.
[Xperia Z2 General] leony74:
For all my friends out here. Whatever smartphones we use if it has kit Kat 4.4.2 installed, The battery will drain 10 to 15 percent per hour in idle state if we r logged on to Skype. Try to log out from skype and disable automatic sign in.
[Xperia Z2 General] robertopod1968:
I have excellent battery life, GPS on, Google location services on, tap to wake on, auto brightness . Nfc and Bluetooth are the only things off. The best phone. Not going to complain about 8 hours screen and 20 hours overall
[Xperia Z2 General] Cena99:
guys am very happy with the battery life.. but i do have a question.. I don't know if it's that so good or something wrong .

today i used my phone from morning 6am at full charge 100%. i use it mix of wifi and Lte 4g during the day and used the camera took some pictures and viber calling and chatting WhatsApp and using many other things and at night 11pm i still have 70% battery life!!!!!!! is that possible..? is it that good? i start doubt if something wrong.. it's strange to me

btw i have stamina mode disabled and auto sync and wifi always on and i use the double tap to wake up the screen always on.. the brightness is auto at 70%..

Sent from Sony Xperia Z2 using XDA App
[Xperia Z2 General] chesterr:
So I tested two days and the phone was entirely on 3G and I was listening to music for good 4hours and constantly texting using viber and wechat.

View attachment 2740746View attachment 2740747View attachment 2740748View attachment 2740749View attachment 2740756View attachment 2740757

And the second day I was entirely on 3G too and I turned off scanning always available on WiFi advanced setting.

View attachment 2740763View attachment 2740764View attachment 2740765

P.S: Forgot to mention that I totally forgot about GSam Battery monitor LOL
[Xperia Z2 General] kartoonz:
thanks a lot for the 3g and walkman tests.. that is exactly my usage... 5.30hrs screen on time is amazing.... now even if i get 4hrs SOT with some more tasks this phone battery is a beast and will easily last a day... :laugh: my next phone
[Xperia Z2 General] SkyS1gn:
My first charge, impressed.

http://prohardver.hu/dl/upc/2014-05/305697_screenshot_2014-05-11-10-10-20.jpg

http://prohardver.hu/dl/upc/2014-05/305697_screenshot_2014-05-11-10-10-32.jpg
[Xperia Z2 General] despairados:
This phone is a beast.

Conditions : Mostly 4G LTE all day, signal average/poor, luminosity ~60% without auto mode, no stamina, double tap activated

Usage : Twitter & text messages a lot, quite a lot of browsing, games, sync enabled for twitter (every 10mns), facebook (30mns), google services (no localization).

Seems it's been "kept awoken" a lot but given the battery life despite this fact, i didn't try to find what process did it. Hope this helps.
[Xperia Z2 General] spuri78:
Im pretty happy with the battery life as well.

The only thing I have noticed is once I take it off the charger from 100% its drops down to 99% with in minuets even when the screen off.

Is anyone else's doing the same?

Should I be leaving it longer on the charged even though it says 'Charged 100%' ?
[Xperia Z2 General] vlawrence0324:
Once its gets to 100% leave it for another hour or just half hour.
[Xperia Z2 General] spuri78:
Thanks, will do.
[Xperia Z2 General] lyubor:
I just got mine yesterday and I have to say I'm pretty impressed with the battery.

Today's been my first full charge day and after 5 hours of SoT I'm still at 50% battery.

3-4 hours of the day were spent on 4g networks while the rest in wifi zones.

I have auto sync disabled and no stamina mode (first time I'm trying an Xperia without it).

I will however enable it before going to bed.

I'll probably leave it idle overnight and see how far it gets me tomorrow. If my cycle repeats itself I could get up to 10 hours of SoT....that's just sick I've never expected such a battery in a smartphone.
[Xperia Z2 General] BanziBaby:
Just to let you know your screenshot shows stamina mode is on, you can tell by the + to the right of the battery icon.
[Xperia Z2 General] lyubor:
That was around the point when I went to sleep :P

Anyway, battery dropped by 2% that night and I finally put it on the charger at 20%

SOT is at 8 hours 29 mins and that's just awesome. Gonna do a detailed power statistics in the weekend when I have time.

So far the battery on the Z2 is just amazing.
[Xperia Z2 General] Jiyeon90:
Got the screenshot? That sounds ridiculously good

Sent from my Xperia Z1
[Xperia Z2 General] lyubor:
I was kinda late cause it was already charging but still the graph should show enough
[Xperia Z2 General] insom:
I did get 7hrs 49mins SOT second day then never get same SOT.I am getting 5hrs 40mins now.I don't understand why?
[Xperia Z2 General] 3mps:
Even though I haven't used it much on it's first proper day it's still way better than anything I've previously had
[Xperia Z2 General] 5nakedoc:
I am pretty impressed with battery life:
[Xperia Z2 General] dr_karim:
how long does it take to full charge from 0 %???
[Xperia Z2 General] jonmorris:
Don't know. It's never got that low! Seriously, this phone can't run out of battery as you'll lose your nerve and charge it long before it runs that low.
[Xperia Z2 General] SexyIceCream:
stamina mode not working

any one find that the stamina mode is not working at all? I made sure that the right boxes were ticked(start from 100%, extended standby) but everytime i check the lock screen my mobile data signal is still there. isn't mobile data supposed to be turned off when the screen is off? i also waited a few minutes to double check.

And i'm pretty sure the signal doesn't appear instantly your screen comes on...
[Xperia Z2 General] ProdigalFather:
That's exactly how Stamina works. It doesn't turn off the connection to mobile data or WiFi, it just stops blocks all incoming and outgoing traffic while the screen is off. That means instant access when you turn the screen back on, which is awesome.
[Xperia Z2 General] SexyIceCream:
oh i see....haha i was just trying to figure out the problem since the description says it disables the connection. interesting way it works, thanks for the heads up!
[Xperia Z2 General] raudidroid:
are you running on LTE?

because mine when running on LTE runs just +/- some 20h :-[[[[
[Xperia Z2 General] paras:
Here is mine.Auto brightness and stamina mode was on.

Sent From My Sony Xperia Z2 D6502 White
[Xperia Z2 General] TheOnlyIntruder:
10 hours the phone being on for, and a screen on time of 4 hours 52 minutes and the battery isn't even half way down!
[Xperia Z2 General] paras:
Do u use stamina mode?

Sent From My Sony Xperia Z2 D6502 White
[Xperia Z2 General] vlawrence0324:
Just wow!
[Xperia Z2 General] feis:
As you can see in screenshot, yes he does
[Xperia Z2 General] paras:
Can u tell me a basic difference btw stamina vs normal mode? Thanks

Sent From My Sony Xperia Z2 D6502 White
[Xperia Z2 General] TheOnlyIntruder:
Yes I do although I have several programs whitelisted including email, gmail, google play services and store, messaging, phone, remote shares, skype, snapchat and walkman.

Stamina mode basically works like a firewall, it prevents all apps from accessing your data connection while the phone is in standby but you can whitelist apps to continue as normal during standby.
[Xperia Z2 General] feis:
It turns off all data, both wifi and mobile when screen is off, only apps you add to exception list may use it, also you can restrict performance, by doing that you save even more. I didnt feel any lags with it
[Xperia Z2 General] paras:
Oh didn't know that.Thanks bro

Sent From My Sony Xperia Z2 D6502 White
[Xperia Z2 General] beni8978:
This is the most perfect battery life I saw on this thread?Which fw are you using?
[Xperia Z2 General] TheOnlyIntruder:
17.1.A.2.55

You should check my post earlier in the thread, 2 days phone life with 8 hours screen on time.

The recent screenshots I had been texting all day and I played an some sliding ball too.
[Xperia Z2 General] nerobot:
Loving the battery life on my z2!

6 1/2 hours of screen on time compared to my old Galaxy Note 1 time of 1 1/2 hours!

Battery going down more than I would like when the screen if off but will have to play with settings a bit (shame I can't get root and just use Greenify but my phone is currently unlockable).

Using Stamina mode and stock 4.4.2 rom.
[Xperia Z2 General] nourzoukar:
I have my Z2 since two days now, and I am NOT satisfied with the battery, I never reached 15 hour and I'm a moderate user, yesterday SOT was about 3.5 hours and the total time was 14 hours, with all the power saving modes are ON.

Today I unplugged it in the morning at 7 am and here is the estimated time with the stamina mode and without are in the attachement and only one minute between the two screenshots.

Now it's 11:15 and the battery already 60% with SOT about 1,5 hour.

Is that normal!!???!!

P.S the device temperature is always between 27 and 37 (C) even though it is only 16(C) here now
[Xperia Z2 General] feis:
Temperature is completely normal, what do you expect? Its quad core beast in small waterproof body enclosed by glass on both sides... For battery life there are many variables, cant say anything as your screenshots show nothing. Show battery usage stats, not stamina mode page :D
[Xperia Z2 General] kartoonz:
3.5 is not all that bad... is the phone on LTE and bad reception??
[Xperia Z2 General] nourzoukar:
No LTE was off.

And comparing to other people I am very moderate user. I've seen people here with more than 30 hours and about 6 Sot and they are doing at least twice what I am.... That's why I am concerned.
[Xperia Z2 General] insom:
Same here mate.I couldn't figure out yet what's wronq with this damn phone.
[Xperia Z2 General] Haldi4803:
Is there root available for the Z2 yet? IIRC better battery stats does not show alarm without root. And screen on isn't fully shown if not installed as system app.

But this sweet little app would show what exactly keeps your phone active.
[Xperia Z2 General] paras:
I think root there only if ur bootloader is unlocked

Sent From My Nexus 5 Stock 4.4.2 ART
[Xperia Z2 General] nourzoukar:
I know this feeling bro, if it didn't work out this week I'm returning it.

Here is the battery today since 7 in the morning,
[Xperia Z2 General] insom:
I did reset the phone after that showed 3 days battery life.I do first charge then shows 15hrs battery life on stamania mode.it's really disturbing me.
[Xperia Z2 General] KyleSforza:
100% brightness, Wi-Fi on all the time.
[Xperia Z2 General] feis:
Well 5h screen on time with some gaming and navigation isnt that bad. I mean yeah, it could be better, but if you have auto sync and apps refreshing every few minutes, i would say its normal. I have no auto sync, auto brightness, half day wifi, half 3g, stamina on, restricted performance on, que background data on, and around 24h on battery, 7h-8h screen on time.
[Xperia Z2 General] mariusfl0rian:
I'm impressed from the battery. It's my second charge and The battery lasts very long. The screen on time is 4 hours and 10 minutes with stamina mode on and brightness on 15% auto. I also have 44% left.

Gesendet von meinem D6503 mit Tapatalk