yashsingh1/xdaforums huggingface dataset:
[Xperia Z Q&A, Help & Troubleshooting] Aman27deep:
Re: Xperia Z battery life

Probably. Let us know if\when you Fix the issue.
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Re: Xperia Z battery life

Yes could be if wifi drop and data try to reconnect.

I was asking amen27deep about his firmware cause he is getting a good results.

I believe that not all firmwares are good in term of battery life,i was getting better results with the indian firmware posted by DoomLord,way better than my original(middle east)firmware.
[Xperia Z Q&A, Help & Troubleshooting] Dsteppa:
Later on I will do about 3 tests to see what's going on.

1: Run the test again now that I'm rooted (Wifi on)

2: Run the test again now that I'm rooted (Wifi off/Mobile data on)

3: Run the wifi test again after I received my wifi range extender.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Here some more..... Wifi Only Flight mode.

i fear that with Sim card i'd only get 4h :( or 4:30 Let's try!
[Xperia Z Q&A, Help & Troubleshooting] pegasus1980:
Hotspot

Battery drains fast when using hotspot is this normal ?
[Xperia Z Q&A, Help & Troubleshooting] Don MC:
You mean you are using your phone as a WiFi hotspot? Then yes, huge battery drain is normal. I would recommend keeping your phone on charge while 'hotspotting'.
[Xperia Z Q&A, Help & Troubleshooting] 23Six:
Re: Xperia Z battery life

I think a lot of the drain is the CPU spending 30%+ at 1.2-1.5GHz. Try on demand governor. Or pegasusq if any kernels support it(?)
[Xperia Z Q&A, Help & Troubleshooting] schaggo:
Re: Xperia Z battery life

Yes. Use bluetooth tethering for less drain or usb tethering to keep the battery levelled.

Sent from my C6603
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Re: Xperia Z battery life

Here is the screenshots i promise.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Wohoo Stamania mode -.- FAIL! was on the old firmware
[Xperia Z Q&A, Help & Troubleshooting] droidhd:
Why do you people even do tests and show screen shots with airplane mode? That is so FAIL test!
[Xperia Z Q&A, Help & Troubleshooting] Lyechee:
Agree. A screen with airplane mode is just useless if we wanna see the power of the Stamina mode.
[Xperia Z Q&A, Help & Troubleshooting] sipe1:
Wow this is great! Some info on your settings and tweaks if any?
[Xperia Z Q&A, Help & Troubleshooting] DakiX:
Brightness at 40%, 3g rotatory wlan, many garbage services uninstalled, some build.prop tweaks for better deep sleep and suchlike. Used: Twitter, Tapatalk, WhatsApp, Youtube, Chrome, Tunein Pro, Pulse and of course Apex Launcher! thats hardcore using with 7h display-on yeah. Otherwise with (normal) two days of use and 4-5h display-on :)

*don't use snapdragon battery guru.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Because i have no SIM card ? but hey, if you insist i can stop posting. but IMHO the more the better.... but if you think it's spam i'll stop.
[Xperia Z Q&A, Help & Troubleshooting] AntonyStark:
Re: Xperia Z battery life

It's not because it's spam but any battery test when the phone is not being a phone doesn't really mean much. We can all replicate that.
[Xperia Z Q&A, Help & Troubleshooting] sipe1:
Yeah, I get above 5h of usage in average. Can you post build.prop tweaks? Other things you did are alright (done to myself too).

Cheers.
[Xperia Z Q&A, Help & Troubleshooting] droidhd:
No offense, but my DHD with airplane mode have 4.5h screen time. Thats why I said it is not legit test. Sorry if you feel offended because of that.
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Re: Xperia Z battery life

I thought 6h was managable, but now this... Great stuff. Also interested in build prop tweaks. What have you done and sharing the file would be nice? I guess you disabled most of google services cause they are the only one's causing my wakelocks?

Sent from Sony Xperia™ Z
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Re: Xperia Z battery life

You charge your phone for sure,this is impossible ;)

7:30 hours screen on and you still have 23% :p
[Xperia Z Q&A, Help & Troubleshooting] scorpi786:
Guys im getting no more then 3hr 20 mins screen time on my stock uk XZ on the three network.

When i first got it I used to get 4hr 20 minutes, dont know whats happened. Installed gsam and it shows chrome or firefox with the most cpu usage.

Sync is mostly off, auto brightness, hspda on. Everything else off except stamina mode.

Havent installed anything that can drain battery. And nothing is draining it according to gsam.

Strange. I really cant be bothered to factory reset it again.
[Xperia Z Q&A, Help & Troubleshooting] cordonbleu:
I have exactly the same issue. First few days I got 4/4,5 hrs screen time. Now I only get around 3hrs of screen time. Haven't installed any new apps since, same settings, same brightness (lowest with auto off)..... I don't get it.... :eek:
[Xperia Z Q&A, Help & Troubleshooting] funkyblue04:
Re: Xperia Z battery life

The phone has a crap battery, that is what!

I'm really tired of all the new phones that just suck at battery life.
[Xperia Z Q&A, Help & Troubleshooting] scorpi786:
On the other hand watching hd videos on YouTube drains less battery then browsing websites. Something wrong there.
[Xperia Z Q&A, Help & Troubleshooting] Mr.Dadulka:
Re: Xperia Z battery life

For sure I would try uninstall/freeze Chrome - was causing wakelocks and huge drain for me,

There might be some sleeping wakelock which appears unexpectedly.

Try bbs and look... it is not necessarily poor battery life.

Swyped from my sweet JB powered Sony Xperia Z.
[Xperia Z Q&A, Help & Troubleshooting] scorpi786:
How would i freeze it, i noticed it uses more battery then chrome according to gsam even though its on for less time.
[Xperia Z Q&A, Help & Troubleshooting] sipe1:
My advice to all you is to remove all bloatware you don't use.

Flash it with new stock .434

Root it.

Delete bloatware. Use other browser (for example dolphin + jetpack).

Optional install custom kernel with undervolt for even more battery.

Then you will notice improvement.
[Xperia Z Q&A, Help & Troubleshooting] 23Six:
Re: Xperia Z battery life

Ondemand/cfq
[Xperia Z Q&A, Help & Troubleshooting] cordonbleu:
Strangely enough I noticed Dolphin to use more battery than Chrome, when I used Dolphin instead of Chrome. Esspecially Android OS went sky high in battery stats. When swapping back to Chrome, Android OS dropt back to normal level usage.
[Xperia Z Q&A, Help & Troubleshooting] mksreenath:
Problem in power management

hey all,, i am getting a strange problem,, earlier when i activate power management used to show stand by time in 'days' now at maximum it show 21 hours..!! but it work fine, after 11 hour from 21 hour it showing 17hour..i dont know what it means !! please find attachments..
[Xperia Z Q&A, Help & Troubleshooting] dreamville:
Re: Xperia Z battery life

Well my previous Xperia had great battery. I was getting constant 5hrs with moderate usage from day one but just got a brand new one 2 days ago and it's appaling. I haven't done anything different...actually i've barely even installed anything yet. Battery drained with stamina mode on, screen on time has been very poor. I'l stick with it to hopefully improve the battery cycle but for now I can't use it :(

Here is my stats:
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Re: Xperia Z battery life

Factory reset^^^^
[Xperia Z Q&A, Help & Troubleshooting] sipe1:
If is brand new, wait about 10 battery cycles to get it stable. Also factory reset or flash .434 via flashtool.

Optional root, remove bloatware and custom kernel :)
[Xperia Z Q&A, Help & Troubleshooting] ManuH8:
i have the same problem, but i think is a "little" bug... I hope in 4.2.2 can be fixed
[Xperia Z Q&A, Help & Troubleshooting] Akiainavas:
It's not a bug. It estimates it on the fly according to your device usage analysis - it will change constantly.
[Xperia Z Q&A, Help & Troubleshooting] Dsteppa:
And in the end it's just an estimate, when it says 21h for example it doesn't mean that the phone will suddenly power down or something:silly:
[Xperia Z Q&A, Help & Troubleshooting] Efe64:
Re: Xperia Z battery life

Bull sh1t.

Where is the other screenshot?

Send from my awesome 1080p
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
wow.... and thats what happen if you let your phone stay with WiFi connected in Wlan Range, no battery safe mode!
[Xperia Z Q&A, Help & Troubleshooting] ManuH8:
Yes, i understand now, sorry. I thought was a bug -.-
[Xperia Z Q&A, Help & Troubleshooting] AntonyStark:
Re: Xperia Z battery life

It is a bug. It should say how much standby time is left based on how much battery your phone uses with its screen off, nothing to do with what you do when you use it, so when this states 11 hours when you have a full charge it is clearly wrong and not based on that.
[Xperia Z Q&A, Help & Troubleshooting] saitek1911:
Hi there, could someone have a look at my problem here?

The first day i got my xperia Z i was very in love with the phone.

And the battery lasted fairly well.

However, after about 5-6 Recharge cycles the battery is more and more dying.

Example: The day i got the phone, when activating STAMINA MODE, that would grant me about 3-4 days living time at 100% battery.

But now, at a 100% battery, with STAMINA ON, it only grants me 21 hours instead of 3 days.

Usage: Music (heavily), Some gaming, facebook, camera etc. these are apps that does require juice, but come on! My galaxy s3 could take that kind of usage way better than this phone.

Take a look at these screenshots.

I think these results are HORRIFYING to this so called "winner" in battery life.

Even Wallbase sucks up 12% of my battery of just browsing through photos for 10 minutes.

Can someone help me with this?

I heard other people had this problem but i seem to get worse results than others.

Please help, thank you!
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
I don't see much wrong here. 40min of screen time and lost 16%. If your using 40+ % of sceen brightness then it's all OK.

You probably get a case of bad battery calibration , but i wouldn't bother with that.

For examle , i can get 20min of usage and it still stays at 100%, and then somewhere around 75% i get a drop to 65% even though i used phone for just 10mins ..

I suggest you write back when you drain your battery to 1% ,and then tell us if somethings wrong ;)
[Xperia Z Q&A, Help & Troubleshooting] abd_alazeez2002:
Re: Xperia Z battery life

Finally I was able to get 4hr screen on time.

I got it after turning off adept light conditions.

I'd someone could confirm it.
[Xperia Z Q&A, Help & Troubleshooting] anirudhks:
For thos who would like to squeeze in some more battery while the phone is in sleep and not disconnect data , use the 3g toggle tool , which you can use to switch to 2G and 3g easily with a click of widget. with this when ur putting ur phone to sleep in the night or during office hours so ur data and batteyr consumption will lower to the least as you will be requiring minimal data bandwidth for apps like viber or whatsapp during sleep.. I have atleast seen 25-30% more battery.. than the normal
[Xperia Z Q&A, Help & Troubleshooting] DeadlyDazza:
Re: Xperia Z battery life

Well somethings keeping my Z awake pretty much constantly.

No exceptions in stamina.

Any ideas?
[Xperia Z Q&A, Help & Troubleshooting] wawyed:
Re: Xperia Z battery life

Install betterbatterystats and report alarms, partial wakelocks
[Xperia Z Q&A, Help & Troubleshooting] pjgowtham:
Re: Xperia Z battery life

I cant imagine a life wid nuclear reactor like stuffs instead of battery which charges by itself...
[Xperia Z Q&A, Help & Troubleshooting] dreamville:
Re: Xperia Z battery life

Yeah I've factory reset the device. Still hasn't improved much, I'm getting drainage and it appears my device has been awake with the screen off a few times. How do I check which app is causing this issue?

Also I'm planning to root the device and install a Rom but I'm a noob right now so still researching. Rooting the device doesn't seem difficult but flashing the Rom might be an issue. Will a custom kernel help? Also which Rom do you recommend since there is now quite a few to choose from. The last question I have is how easy is it to get back to factory and remove all rooting, Rom, kernel etc..do you just use the Sony software and repair it?
[Xperia Z Q&A, Help & Troubleshooting] froxor:
I had a same issue with Dolphin browser where Android System went high in battery stats, but I noticed that somehow battery usage for Dolphin doesn't count properly in battery stats. It shows less time for Dolphin than it was, and maybe rest of the time counts in Android System stats. Chrome using much more battery than Dolphin. I was getting 2-3 hours on screen time with Chrome and processor was getting really hot when browsing so I disabled Chrome also Facebook app was draining battery too much I got rid of it as well, now I use Dolphin for facebooking. Check my battery use stats. Dolphin couldn't use just 7% of battery and 1 hour of usage as I used my phone mostly for browsing and facebook(in dolphin), and it wouldn't be possible just 1 hour out of the 5 hours on screen time. Couldn't post battery stats pictures as I am new in forum, so I just wrote them :)

3% Discharging

1d 11h 22m 15s on battery

Screen 35%

Android system 26%

Media Server 10%

Dolphin Browser 7%

Cell stand by 5%

Phone idle 4%

Screen time on 4h 58m 20s
[Xperia Z Q&A, Help & Troubleshooting] nikkon:
In my case after the first full charge (on fw .350) battery died in about 5 hours :(

After the fw update (.434) + 2 full charges and stamina mode enable it goes up to 2 days and still have ~15%.On a dayli usage i got ~1 hour talk, wifi when i have one spot and Edge network all the time (when is no wifi), no browsing, no music on.

I find it quite good for my needs.
[Xperia Z Q&A, Help & Troubleshooting] 23Six:
Re: Xperia Z battery life

Do these services have any effect on battery life and can they be disabled with no hiccups?
[Xperia Z Q&A, Help & Troubleshooting] Dsteppa:
Hmmm

- Overheat control speaks for itself should not be disabled and I'm quite sure it won't cause wake ups.

- USB connectivity.... Unless you don't use your USB cable to put files on your phone/pc you can disable it.

- Google services can be disabled, but maps/play store will probably stop working

- Media... Not sure about that one, if it's only SD card related or not.
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Re: Xperia Z battery life

I will upload the files list that can be removed when i get home.
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Re: Xperia Z battery life

Here the list http://xdaforums.com/showpost.php?p=39862382&postcount=16
[Xperia Z Q&A, Help & Troubleshooting] Aman27deep:
Re: Xperia Z battery life

I'm very happy with the battery life. Usually runs for nearly two days. I'm not a heavy user.
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Re: Xperia Z battery life

Can anyone tell me what are all those "res.overlay" apk's. in system...? Are those safe to remove?

Sent from Sony Xperia™ Z
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Re: Xperia Z battery life

There is no res.overlay apk in system.

Custom rom??
[Xperia Z Q&A, Help & Troubleshooting] schaggo:
As stated, Better Battery Stats. Free version available here on xda-dev forum.

See above, Better Battery Stats.

Custom kernel only runs on unlocked bootloader. So basically, no.

Depends. Basically, very easy, you just flash an FTF and you're done. But, if you want it back to EXACTLY the state you bought it, you need to, very briefly:

Produce an FTF of the exact software configuration your device runs now (update/repair via sony software -> copy source files -> generate FTF from source files)

keep that FTF at a secure place

mess around with your phone, flash, root, wreck, brick it, whatever you like

reflash your very personal FTF

profit!

That's it more or less. You could take any FTF which is similar to your current configuration, if it is not full-on the exact same configuration, if someone would really try hard to find out, it could be detected that you once were messing around with your phone. One would have to really try though...

Yes there is/are. Load up titanium backup and you'll see plenty of *res.overlay.apk's which I have the suspicion, are "sony-fied themes" of the default system components or so.
[Xperia Z Q&A, Help & Troubleshooting] 23Six:
Re: Xperia Z battery life

There is hope.
[Xperia Z Q&A, Help & Troubleshooting] paalkr:
Re: Xperia Z battery life

Coming from Samsung devices I must say that I'm impressed and very satisfied with the battery life of the XZ. Both the galaxy S2 and S3 hardly last a working day. My XZ with auto sync for Facebook, Google+, dropbox, Gmail and push mail for exchange, hours of screen time and phone calls easily last +24 hours.
[Xperia Z Q&A, Help & Troubleshooting] robogo1982:
Re: Xperia Z battery life

Agreed, on S3 I couldn't even dream of a full day's use with 3G on, which the XZ easily manages.
[Xperia Z Q&A, Help & Troubleshooting] nico98:
Re: Xperia Z battery life

Same here getting a full day on 3G where I think the S3 would have only lasted 10 hours max.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
So this was my latetst with Doomkernel v3.

And now this is Modified , deactivated MPdecision, force off core 3 and 4, OC core 1 to 1836mhz and core 2 to 1512 mhz. Nearly Same usage.

Sunspider Benchmark on 2Cores with Chrome!

Next i'm gonna try 2cores on 1325 and 2 off. See how much performance i lose.
[Xperia Z Q&A, Help & Troubleshooting] Dsteppa:
There is no hope for me haha

Display brightness was @ 75% while I was watching a stream, beside that the brightness was @ 0%
[Xperia Z Q&A, Help & Troubleshooting] 23Six:
Re: Xperia Z battery life

Whole day WiFi @ 20-40%, forced GSM weakish reception, UC @ 1.02GHz :p sync+vibration off at <30%. Stamina mode was on the whole time but I think that's bugged cos I was still receiving emails during deep sleep.

My S3 got the same times in similar conditions roughly but in airplane mode on/off.

All in all, good battery life.
[Xperia Z Q&A, Help & Troubleshooting] ligerblitz:
I just got my XZ today!!! Im loving this phone omg...but...the battery...wow...sure goes low really fast. Going to walk with the charger tomorrow at work lol!
[Xperia Z Q&A, Help & Troubleshooting] funkyblue04:
Re: Xperia Z battery life

I just want a high spec fone that has real life battery usage and can last all day.

Maybe next year...Focus on battery life not specs.
[Xperia Z Q&A, Help & Troubleshooting] wawyed:
Re: Xperia Z battery life

You mean 24h screen on time?
[Xperia Z Q&A, Help & Troubleshooting] wevie:
Impressive, do you know which display (Sharp/JCD) you have in your XZ?
[Xperia Z Q&A, Help & Troubleshooting] nikkon:
They said it's a Sharp display
[Xperia Z Q&A, Help & Troubleshooting] reignzy:
Re: Xperia Z battery life

Nah, you're using it all wrong. What are you doing with it to need a charge every 4 hours???

I charge mine every day, because it thrash it!

Battery will last me about 14-18 under heavy load, stamina mode OFF, Wi-Fi and 3g/4g running til I get home.
[Xperia Z Q&A, Help & Troubleshooting] AntonyStark:
Re: Xperia Z battery life

Maybe next year find something to do so you're not using your phone for 5+ hours.
[Xperia Z Q&A, Help & Troubleshooting] anirudhks:
True , and also to add this is not outdated tech the phone uses a S4 Pro the architecture is 95% similar to the Snapdragon 600 processor so it beats the SH** out of Galaxy S3 in this , its the processor still in use ... and the Adreno 320 Graphics as well..

if you are from the future time travelled yes its outdated tech.. ;)
[Xperia Z Q&A, Help & Troubleshooting] 23Six:
Re: Xperia Z battery life

I'm using Sharp display.
[Xperia Z Q&A, Help & Troubleshooting] scorpi786:
Guys make sure Google now is turned off, it kills battery life. In order to do so open the Google app press the menu button and select settings.
[Xperia Z Q&A, Help & Troubleshooting] nikkon:
nice trick...we'll see the result in some days.
[Xperia Z Q&A, Help & Troubleshooting] 23Six:
Or, to keep functionality, disable maps+turn off the wireless network option in locations, or deny Google apps location access within Now.
[Xperia Z Q&A, Help & Troubleshooting] Muawiyath:
Xperia z is either having a software or hardware problem

I used a note 10.1 for two months and did gaming all the time with 3g on but it lasted for two days without charging. But the Z cant even handle 15 minutes of gaming. It goes down from 71% to 62% IN 15 MINUTES. I expected the update would fix the problem. But I dont see any difference. I was so curious with the Z. But I doubt that now. Is the fate of Sony going to be that of like Toyota.
[Xperia Z Q&A, Help & Troubleshooting] luke997:
I think the battery life depends a lot on the user.

I have crazy good battery life, my typical day is:

Charge ~5-7pm

Morning - still 100% (with only few minutes of use until then)

Later I use phone on train/etc. for about 40-50min and battery drops (light gaming (puzzles), browsing, downloading apps) to 85-90%.

Next 8h phone gets ca. 10-15 text messages, couple e-mail, short call, I turn it on ca. every 20-30min. for a short while.

Later 40-50min gaming/browsing as earlier and coming home I have anywhere between 45-65%.

I'm very happy with such a battery life considering all this power hungry hardware, similar usage with my older phones got me near 30%.

If that helps anyone - my setup is:

Screen brightness ca. 40%,

Stamina mode off, data on, wi-fi off, bluetooth off, nfc off.

Kernel/ROM as per sig, no bloatware, no battery draining apps running in the background.

No battery defender installed, undervolted -125mv

BTW - I've definitely seen improvement with DoomLord's v04 kernel, with v03 in the morning estimated standby was shown as 3d + couple hourse, this morning it was 4d + 10h.
[Xperia Z Q&A, Help & Troubleshooting] anirudhks:
Buddy firstly you are doing a wrong comparison you can compare an Elephant with a Hippo.. :p:p

Note 10.1 has 7000MAH Battery , XZ has 2330 so almost 3 times

Note 10.1 has 720p Crappy resolution screen ( i have a note 10.1 too so I knwo the resolution lol ) so lesser utilisation of battery and as it does need to powerup 1080p pixels

The note 10.1 will obviously last longer due to the huge battery in it .. so its not fair to compare .. as far as XZ yes the battery is small but you will need to find ways to conserve battery by not enabling too many apps in whitelist of stamina mode at the sametime overload by heavy gaming..

If you want to get the best juice out of the battery with ur XZ with performance better to unlock BL and get a custom kernel which can do good battery management and a custom ROM like Cm10 which will remove all bloatware and give you pure performance..
[Xperia Z Q&A, Help & Troubleshooting] Dreiundachzig:
It isn't normal that battery drains faster than it charges, is it? My phone is plugged in with DC charger and using my phone will drain battery too fast.
[Xperia Z Q&A, Help & Troubleshooting] decentgi:
when I use laptop to charge and im tethering the battery doesn't move at all. but when im using the wall charger while using hotspot it does charge but slowly.

the dock however is a different story that charges my phone in less than and hour its amazing and that's while I have hotspot going.
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
dude battery is way smaller than that of the note 10.1
[Xperia Z Q&A, Help & Troubleshooting] Dreiundachzig:
So you are saying that with dock battery charges faster?

I deactivated some unused Sony apps. They were annoying.
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
only with certain 3d games and supplied charger, if I use the charge from the note 10.1v it will charge while playing Real Racing 2
[Xperia Z Q&A, Help & Troubleshooting] Smartphoner:
Don't judge the new battery unless after 1 week of charging discarding cycles. Also turn off Google now and bravia engine and lower screen brightness. Delete moxier pro and mcafe security. The battery will be fine after that even without stamina mode.
[Xperia Z Q&A, Help & Troubleshooting] decentgi:
yes its way faster