yashsingh1/xdaforums huggingface dataset:
[Xperia Z Q&A, Help & Troubleshooting] Admiral AnimE:
Any way to stop or reduce this wakelock except airplane mode? Battery dropped 10% from just 8 hours standby... I read that it has to do with the 3G modem, but i'm no using 3G, only 2G and wi-fi.
[Xperia Z Q&A, Help & Troubleshooting] whitefang3456:
Flash older firmwares like. 350???... LOL seriously haha. But u can try fix in Making Kernels. This wakelock somehow comes around after ICS update came. My Tab had it before, but after got China Kernel firmware, and mix it, it was long gone. Deepsleep like BOSS.

Whitefang
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
.423fw is so far excellent for me
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
mmc1_detect over the top wakelock issue seems fixed with 4.2.2 firmware.

I will make sure of it in coming days.

Fastdoramncy was causing a lot of alarms removed it again.
[Xperia Z Q&A, Help & Troubleshooting] davidugly:
Nevermind battery on Xperia Z... Carry one in each color and swap Sims each few hours.
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Really exceeded all my expectations, listening how 4.2 is buggy on samsung and nexus devices...

Super smooth experience, and i would say even better battery life. I noticed i have much better signal coverage with. 423 and new basenand.. Thanks Sony :)
[Xperia Z Q&A, Help & Troubleshooting] Sc00p007:
I am experiencing far better battery life.

I have flashed each and every new firmware with flashtool. I kept the boxes checked to delete all data. They all seemed to be similar in battery performance, improving slightly each time.

This one is far better, and makes me think that i have been unlucky? and had a problem arise each time that i was unaware of. I am new to smartphone and android. All i know is that my battery is now much better on 4.2.2.

I used to look at some peoples battery stats and think about how they managed much higher than me. I dont know what is different but now instead of 2hrs 35m screen time in 20hrs, i am getting 3hrs 25m in 60hrs. Both without stamina mode. With around 1h 30m music every 24hrs. Gps off. All the same settings. Whatsapp, Facebook, Skype the main usage aswell as general web browsing, texts and the odd short phonecall.
[Xperia Z Q&A, Help & Troubleshooting] Destroyedbeauty:
One solution that did work for me on two latest 4.1.2 firmwares was to flash v6 of Doomlord kernel. That limited msm_hsic_host kernel wakelock a lot!

Skickat från min C6603 via Tapatalk 2
[Xperia Z Q&A, Help & Troubleshooting] canasd:
I had a huge difference in battery life. While stamina open my battery dropping %15 to %20 overnight at .253 NL now it drops %3 to %4 overnight at .423 ES
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Deactivating WiFi in Standby. (Activated on standard)

Seems like that helps to reduce mmc_1_wakelock
[Xperia Z Q&A, Help & Troubleshooting] viswavj:
Battery

too bad in my case as I'm heavily using 3g my mobile battery badly goes down below 10% within 5-6hrs
[Xperia Z Q&A, Help & Troubleshooting] DoubleYouPee:
Since 4.2.2 I'm getting this wakelock...

3h38min? are you kidding me?

I've been on WIFI all day.

Look at this 8 hours awake with 3h screen time

Weirdest thing is there's only like 10 results on google for the wakelock.

I'm thinking of doing a reset
[Xperia Z Q&A, Help & Troubleshooting] kennycol:
Hi everyone, was helping you could give me a hand with a doubt, this morning afer waking up i saw the attached image behavior. It started drawing considerably energy while been idle (i was sleeping), and then it drained almost 10% of energy crazy fast, what do you guys think?

All i did was set up an alarm, also there was a (sony native calendar) remainder for today which i suspect may be the culprit, signal is kinda bad so that too could be the cause but i havent seen this behavior last couple of days with the same crappy signal.

No theories regarding the 6:40, maybe the system looking for updates as that was approx the time when i got the phone into the signal amplifier.

Thanks for your input
[Xperia Z Q&A, Help & Troubleshooting] dvd777:
This is great. I had 27% battery, deleted fastdormancy, rebooted phone and now I have 51% :cowboy: Will see how it goes now.
[Xperia Z Q&A, Help & Troubleshooting] Lemagex:
Doomkernel. No undervolt or underclock. 423 firmware. "Deepsleep battery saver pro" and "pm.sleep_mode=1" in buildprop. Approx 1.9% an hour.
[Xperia Z Q&A, Help & Troubleshooting] leventero:
UPDATE:

I went back to the store and my xperia z was sent to repair.After two week i got it back and the repairs they did was the callibration of the battery. :confused: .So i tested it out with the navigation program and it doesn't decrease anymore so i'm good with it :good:
[Xperia Z Q&A, Help & Troubleshooting] ApriliaM3:
Bump...
[Xperia Z Q&A, Help & Troubleshooting] tcpa252:
Hello everyone, a few days ago i've update to the latest .244 firmware and from then on my battery life sucks big time. After getting charged to 100% from almost full discharge in 4+hrs charge dropped by god damn 12%. It is getting by drained by cell radio!

Any ideas on how to fix this? Already tried most of the fixes found on these forums such as enable stamina mode, and battery saving at < 30% charge left as well as killing media server. All other connection technologies such as Bluetooth, WiFi, NFC, etc... ARE DISABLED.
[Xperia Z Q&A, Help & Troubleshooting] pntba:
are you in an area where your cell phone reception is poor ? also please install betterbatterystats and see if fastdormancy is eating up your battery
[Xperia Z Q&A, Help & Troubleshooting] tcpa252:
Regarding the first point - nope. I'm sitting in an area where i easily get HSPA+ :)

Regarding the second point: just installed the betterbatterystats app and seemingly there are 0 kernel wakelock and only a few partial wakelocks. Fast dormancy is not among them. Is this normal?
[Xperia Z Q&A, Help & Troubleshooting] tcpa252:
bumpy bumpy bump

issue's still not resolved
[Xperia Z Q&A, Help & Troubleshooting] pntba:
can you post the log of betterbatterystats or screenshot please
[Xperia Z Q&A, Help & Troubleshooting] Destroyedbeauty:
After first charge and de-charge on battery tweaked and rooted .244 stock with latest Doomkernel, I got those results. Notice that I am an moderate / lightly user though but..

So bad isn't the battery life on the Xperia Z, just tweak it toward using lower cpu frequencies and your battery will increase. Undervolt also helps a lot.
[Xperia Z Q&A, Help & Troubleshooting] sebastianlow:
I'm having amazing battery standby time on my phone with STAMINA, but as soon as I turn on the screen, battery just dips like crazy! I'm running Online ROM V8 with the included kernel.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
It's Summer! Auto brightness kills it. I'm rarely getting over 4.5h screen on.

Btw. Last Weekend I was at the Let it Roll Open Air. Flight mode and no WiFi. Phone mainly used for Pictures and Video recording

Don't know if my two friends didn't take that much pictures.... But when we went home and I had around 30% Battery life they were both over 50% with their HTC One.

BBS log comming when I'm back on PC
[Xperia Z Q&A, Help & Troubleshooting] sebastianlow:
Anyone else experiencing bad screen on time with the latest 244 update?
[Xperia Z Q&A, Help & Troubleshooting] samxool:
For me, my phone has only ever lasted bewteen 3 - 3.5 hrs on screen time.

a few months ago, i had the opportunity to exhancge my XZ for another new one for free due to CW screwing up my account, so i jumped at the chance, thinking i might get one with better battery life.

i can confirm, the newer phone is absolutely no different. Anyone complaining about only 4.5hrs need not complain, you're getting over an hour more than me!! :(

also, games drain my phone like crazy. I only play temple run 2 and candy crush, and the battery drain for both is frigging ridiculous!

Also, since i've updated to .244, android OS is now slowly but surely draining my battery, which is something it definitely didn't use to do before the update. its caused my phone to lose 10% in the last couple of hours with only about 2 mins screen on time in that time. grr!

And i have BBS, but honestly, its all meaningless to me. I don't understand how to make any sense of what BBS is telling me. There must be a simpler and easier to understand battery app out there???
[Xperia Z Q&A, Help & Troubleshooting] venky716:
Same here 3-4 hours screen on time, i've tried the 7+ hours thread technique for 2-3 days but didn't help. But I do have like 20 tasker profiles and proximity sensor/ accelerometer apps.

I want to test the battery with bare minimum apps and a clean ROM install but don't really feel it would help much i.e making a smartphone less smart just to get an hour or two extra screen on time.

But my standby time is just phenomenal i get about a day and couple of hours, my friend's HTC one running custom kernel gets 5.5 hours of screen on time but standby time on that is awful about 12 hours on average (Road Trip : Z lasted for 2 and a half days with data switched on only when needed One died out at the end of day one :silly: True Story :cool:)

ROM : Carbon 1.7

Kernel: CArbon (Undervolted)

Edit: Also I've never let my phone go below 20% so don't know how much juice the last 20% would've left.

Here's the app u were looking for

https://play.google.com/store/apps/details?id=com.uzumapps.wakelockdetector
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Last few weeks..summer, away from home, no wlan,,... 3g all the.time, brightness 100‰ adaptive and i get 3.30+h of screen time. I'm fine with that. No complains

Sent from my C6603
[Xperia Z Q&A, Help & Troubleshooting] N43:
Have the problem with the accu drain after using smart connect :/ latest firmware, unrooted and so on

anyone the same problem? killed also the app in the applist
[Xperia Z Q&A, Help & Troubleshooting] venky716:
Carbon 1.7

Kernel carbon

Undervolted
[Xperia Z Q&A, Help & Troubleshooting] Jambu95:
not normal to me, it drains my battery like hell, always top out in the wakelock list
[Xperia Z Q&A, Help & Troubleshooting] N43:
[MENTION=4246600]N43[/MENTION]

i had this problem before... smart connect would use 100% cpu load for no reason! but now no problems. though i only use Dock+Night time to change wifi+ data + mute.[/QUOTE]

Hi! Deactivated the Smart Connect and again no problems for 24-48 hours
[Xperia Z Q&A, Help & Troubleshooting] feesta:
my eperience is that the bug sometimes appen but the battery duration is now sooo bad :(
[Xperia Z Q&A, Help & Troubleshooting] swtam:
For those who are getting under 2hrs screen time can you please post your battery health from the service screen (*#*#7378423#*#*) http://xdaforums.com/showthread.php?t=2206521

my cap is currently at 1372000 with battery health good

Lately ive been lucky to get 2.5hrs screen on time since the update
[Xperia Z Q&A, Help & Troubleshooting] nemer12:
google services eat 55% battery, does anyone has this problem ?? alot more than the screen(19%) , Google SErvices like 1182 wake up...and I have 41% battery left.
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Check location reporting in maps settings...

Sent from my C6603
[Xperia Z Q&A, Help & Troubleshooting] samxool:
ok, since last saturday, Android OS is randomly draining my battery, and i've no idea why. I've not installed any new apps, nor changed any settings.

Its not a massive drain, but it's damn annoying as it never used to do this. Plus, as it's android OS, it doesn't give me any details on what the problem is.

So, i have better battery stats installed.

But i have no idea how to use it. I'm a complete noob to honest, so if someone could help guide me through identifying what the problem is with kiddy speak, i'd appreciate it.

FYI - i'm not rooted, on .244, using stock UK unbranded firmware.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
set to Unplugged,

Other stats show screen on time and awaken time

Kernel Wakelocks-> PowerManagerService= Partial Wakelocks

click on save/share save as txt and put here in HIDE /HIDE tags.
[Xperia Z Q&A, Help & Troubleshooting] Aspirina750:
Quick question regarding fast dormancy, afaik my provider Vodafone Spain supports FD, but since I installed Betterbatterystats I get this alarm:

In 6h 19m I got 3952 wakeups from com.sonyericsson.android.wakeup

Should I worry?

Thanks

Enviado desde mi iPad con Tapatalk HD
[Xperia Z Q&A, Help & Troubleshooting] icstm:
I have the Experia T and since JB, I have had to switch FD off in the phone even though O2-UK supports FD...

That has removed that w/l and improved battery life on 3g
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
i have no idea WTF this is..... but it was bugged only yesterday, after reboot it didn't happen again!

But on the other hand it's also nice to know... your phone can run more than 16h on 1 core lowest frequency screen off ^^ deactivate 3G and Wifi and you can listen to music for about 20h... maybe
[Xperia Z Q&A, Help & Troubleshooting] venky716:
http://xdaforums.com/showthread.php?t=2413532
[Xperia Z Q&A, Help & Troubleshooting] Aspirina750:
Thanks, will try.

Enviado desde mi C6603 usando Tapatalk 4
[Xperia Z Q&A, Help & Troubleshooting] Zaim2012:
I'm not sure if this is the correct place to post this but here goes.

What is the recommended way of charging the Xperia Z? I normally let it go right down to 0% before charging, Is this the best way to prolong the battery ? will the battery life decrease if I charge it when there's say 10% left ?

Thanks.
[Xperia Z Q&A, Help & Troubleshooting] venky716:
Best method of charging after lot of research online.

Basically charge as often as possible.

A normal li-ion battery gives 500 full cycles, 1500 half cycles (50%),2500 quarter cyvles(75%)before its capacity deteriorates.

That means u charge it from 75-100% 2500 times without deterioration, similar applies for other values.

So preferably charge from 50% or 75 to prolong battery life.

Sent from my very wet XZ :D
[Xperia Z Q&A, Help & Troubleshooting] hohner71:
battery life

My xperia z went from 100% to 18% battery life today in a little under 3 hours doing nothing but web browsing and text messaging. The phone is only one month old, would this be a defective battery? When I first got this phone the battery life wasn't that bad.

I have some more information, I charged again to 100% and it then dropped to 56% in less than 2 hours of mostly stand by time with stamina mode on. I checked and closed any running apps and then I restarted the phone. After the restart the battery level was reported at being 81‰. I had read before about a bug which incorrectly reported the battery level but I thought this was addressed in an update? I'm running Jellybean 4.2.2
[Xperia Z Q&A, Help & Troubleshooting] mubashirha:
My Xperia z battery

This is my battery
[Xperia Z Q&A, Help & Troubleshooting] Olcaypasa:
Battery

WTF is that? I went sleep with stamina mode on and my battery was around %70. When I woke up, %35 is gone. Medya sunucusu ( media server ) is eating my battery. I checked all settings, deleted unnecesarry applications, restart my phone but still. How can I solve it?

( Cant post image )
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
turn your wifi off. Probably "devices" app gone crazy on you. Try clearing its data, or freeze it ;)
[Xperia Z Q&A, Help & Troubleshooting] Olcaypasa:
Turned off

I turned off wifi, didnt open any app and turned stamina mode on. Media server keeps eating my battery.
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
install wakelock detector and maybe you'll find your answer there.
[Xperia Z Q&A, Help & Troubleshooting] sammyballoo:
Disable javascript

I've noticed that web browsing is disproportionately battery heavy, so I did a little googling and found a research paper that says javascript is the most energy draining browser function. As it can be turned off, I've gone ahead and done so (Chrome, Menu, Settings, Content Settings). I hope it makes a difference!

Can't post links yet, so search for "Who Killed My Battery: Analyzing Mobile Browser Energy Consumption"

Hope this helps!

Edit: After just a day of js turned off, I'm already finding some websites insist on it being turned on, which is annoying. I had hoped js would be more optional, but for some web designers it seems to be required. Oh well.
[Xperia Z Q&A, Help & Troubleshooting] Juzman:
I didn't think DooMKernel works with AOSP e.t.c. only stock? Your sig says you're running PAC, but your comment says improvement with Doom's kernel?
[Xperia Z Q&A, Help & Troubleshooting] knightpt:
Yeah i use both Chrome and Dolphin and they both eat up a lot of juice. Quite honestly i even think that browsing non-mobile version websites consumes more battery than watching youtube videos or even streaming 720p videos from my PC via Wifi, yeah it's that crazy...

I don't recall seeing this in my old S3 and optimus G, but then again at the time i was obviously using older versions of those browsers and i don't know if some power-hungry features were introduced since then.
[Xperia Z Q&A, Help & Troubleshooting] JohnnyCarrera:
what app can i use, that detects which applications uses exactly what amount of power?
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
AFAIK None, even Trepn Profile only has that feature on MDP and not normal phones.
[Xperia Z Q&A, Help & Troubleshooting] Bloch_hd2:
well i'm kind of a heavy user and i normally get it to hold juice for 13-15 hours. pure screen on time like internet browsing, streaming music playing lite games and stuff like that i normally get a drain at 25-35 %/h. i'm on latest pac with undervolt, underclocking. and i'm normally only turning the wifi radio on when needed. deepsleep is about 25-35 % :)
[Xperia Z Q&A, Help & Troubleshooting] tobiwork:
howcome ! my battery is dying in about 2.5 hurs with only browsing or exploring phone settings and items :/ im on pac too
[Xperia Z Q&A, Help & Troubleshooting] SGK128:
maybe you have faulty battery? my Z gets amazing battery life coming from S. with Stamina mode on I managed to get little over 2 days with low - moderate usage.
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
anyone had a look on gsmarena's z1 battery results? I'm having hard time to belive those results are realistic. Something had to be draining battery like crazy. Probably RILJ ^_^, which we Z users encountered in honami roms
[Xperia Z Q&A, Help & Troubleshooting] venky716:
Just saw them, crazy I thought 3000mah would do the trick but I guess it has to do with the screen technology and the voltage levels.

Dissappointed and also glad since I don't have the cash to upgrade to Z1. :p
[Xperia Z Q&A, Help & Troubleshooting] ronak123456:
well I'm using this xperia z from about 3-4 days now...and am really not happy with the battery life...!!! at first i thought the battery life will be really good as compared to my previous phone that is Galaxy S2...!!! Yes it's much better than S2 but not worth...!!!

Today morning i removed the charger by charging to 100% and then in just 3hrs...!!! My battery came down to 50%...!!! a real shock.. huh

the maximum is used by screen 30%, Mediaserver, 24%...

I'll tell you what I used from morning...was whatsapp, Internet chrome, downloading some apps, listening music...!! dint play any game..!!!

well i need to know this answer honestly...!!! Are the battery saving apps really working??? Juice defender, DU Battery saver, GO power..!!! I used all this 3 apps and nothing worked good for me...!!

Any of this app or a better battery saving app there??? I wonder this apps eat more battery rather then saving :/

Will custom ROM or a kernal...make my battery life better to what am expecting???

This is with the STAMINA MODE on!!!
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
You need to install "Better Battery Stats" it shows what us using your battery!

Also an important Value is Screen on time!

If you had 3h screen on Time then there is no wonder you had 50% battery lost

for savin battery.... well Stamania mode does great... IF it works -.-

But else... you might try undervolting and underclocking on custom kernel. (Unlocked bootloader!)
[Xperia Z Q&A, Help & Troubleshooting] venky716:
No none of the battery saving apps work they drain more than they save.

I get about 4-5 hours of screen on time with 1d standby.

For best battery keep display on lowest comfortable brightness or auto, 2g on standby.

A custom kernel and ROM would help.

I'm running CyanX ROM and it has given me the best battery life so far. (for unlocked bootloader)

Check your screen on time that is what matters.
[Xperia Z Q&A, Help & Troubleshooting] sea2605:
Here is how to get more battery life (7+h screen-on-time currently ):

//////////////////////////////////

My thread about optimizing the battery life of Sony's Xperia Z: http://xdaforums.com/showthread.php?t=2382712
[Xperia Z Q&A, Help & Troubleshooting] ronak123456:
you're saying CyanX Rom gave you the best battery life..!!! how much hours from 100% to 0% it works??? like without charging it at all from 100 to 0...???
[Xperia Z Q&A, Help & Troubleshooting] venky716:
I get about 30mins SOT for 10% i.e about 5 hours on a full charge.

With about 1% per 1-2 hours standby.

Data 2g on standby, brightness auto or minimum when I'm home

Use the app called Greenify and greenify all apps that causes wakelocks like maps,google+,chrome,google search,twitter ,fb etc.( it puts them all into hibernate state) u can use it normally when u open the app, you won't get push notifications for the apps you've greenified.
[Xperia Z Q&A, Help & Troubleshooting] ronak123456:
greenify app doesnt need a custom rom...dude..!!!

it can work with stock rom and rooted phones...!!!

i wanted to know does the rom that you said is really good in battery life???
[Xperia Z Q&A, Help & Troubleshooting] venky716:
I know that, just giving you an extra tip. :rolleyes:
[Xperia Z Q&A, Help & Troubleshooting] ronak123456:
LOL!!! i told you...if i need to know something should be really usefull...!!! Sorry if you felt bad or felt that am being rude..however I am really fed up with my Xperia Z battery life...even with the stamina mod on...doom lord kernal...it doesn't work out properly...thinking to use Cynamogen mod again and trying it for few days..!!! still unsure about it..!!
[Xperia Z Q&A, Help & Troubleshooting] sebastianlow:
Is it normal for AOSP ROMs to use significantly more battery?
[Xperia Z Q&A, Help & Troubleshooting] ykassana:
Hi guys, long time viewer and first time poster. Got this phone on friday. Really like it. I've had everything from Samsung, Motorolas, LG and Xiaomi.

I've not had an issue. I've been getting fantastic battery, my tips are disable location settings. google Maps drains the battery, get onto the latest firmware if you can. Use wi-fi where you can as 3G drains the battery fast.

Other things are, I did not use stamina mode at all. Very impressed!
[Xperia Z Q&A, Help & Troubleshooting] roaringhere:
Battery - Stamina Mode...

I do not encounter any battery bug, ever since I bought this phone...
[Xperia Z Q&A, Help & Troubleshooting] jbh325i:
Im having serious battery issues.. I took my phone of charge at 1.00 am last night and went to sleep!!

the phone was sitting on my bedside table idle not being used.

I woke up around 7.30 and checked my battery.

I was down at 15%!!!

stock rom and have tried doing the software repair so it is running the most uptodate stock rom.

please help..
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
install better battery stats or wakelock detector, and have a look there.. but that's some serious drainage
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Screen is 30%, Time is around 7h! i bet you didn't set Screen Time Out and your screen was on the whole time.