yashsingh1/xdaforums huggingface dataset:
[Xperia Z Q&A, Help & Troubleshooting] Tamirwig:
I figured out why Wi-fi drains more battery than 3g standby. It's probably because of the gbmps=0 (Something like that) that I implemented in build.prop...

It's a power saving feature that causes the Wi-fi to sometimes disconnect (From what I've heard). Plus, some applications tend to only Sync (Or sync more) when on Wi-fi.

I'm fine with that, when I'm using Wi-fi I'm usually around Electrical outlets anyhow. :D
[Xperia Z Q&A, Help & Troubleshooting] joejoe23:
So from 60 percent it drops to 11 percent just for watch the movie?

Sent from my Xperia Z
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
Updated to 307 firmware will report battery life after some usage.

my mmc1_detect wakelock problem seems gone for now ;)
[Xperia Z Q&A, Help & Troubleshooting] Jambu95:
Did another test, 8 hours with wifi on, mobile data, Bluetooth and NFC off, consumed 9% in standby mode.
[Xperia Z Q&A, Help & Troubleshooting] sephstyler:
OK. Just trawled the thread quickly and it seems most of you are getting good battery life with a few tweaks.

I'm on a 253 based ROM with stock 253 kernel.

Would doomv7 give me battery savings without me tweaking it?

Also some of you have reduced wakelocks due to removal of some apps. Which ones are these and would they make any impact?
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
After upgrading to .307 firmware my mmc1_detect wakelock is still very well alive. At first I thought it is fixed bu no it isnt. This is really getting on my nerves.

If anyone is able to kill this wake lock please please tell me how. :(

Also I have this alarm thing at the second screenshot which is second problem I guess.
[Xperia Z Q&A, Help & Troubleshooting] DoubleYouPee:
Well the second one can be fixed by removing fastdormancy.apk and odex
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Unplug the MicroSD card! Not Deactivate! Just deactivating results in MMC1_detect Wakelocks...

I'm gonna try with a different file system... maybe that helps.

Edit: using NTFS formated SD Card with paragon NTFS mounter

https://play.google.com/store/apps/...1bGwsMSwxLDEwOSwiY29tLnBhcmFnb24ubW91bnRlciJd
[Xperia Z Q&A, Help & Troubleshooting] joejoe23:
Damn, the s4 battery just kills the the z's battery and also the htc one's. Take a look at this video

http://www.youtube.com/watch?v=tQE6v3iBock

Seriously 61 percent left after our Z is left with 1 percent is just amazing lol. Thats less than double the battery usage of our z . Damnn:good:
[Xperia Z Q&A, Help & Troubleshooting] gm007:
I just bought an S4 for my wife :D

Will let you know about the battery.
[Xperia Z Q&A, Help & Troubleshooting] joejoe23:
I borrowed my cousin's s4 and played around with it. Very impressed with the battery and camera settings. Thats the only two thing i like about it. Playing the phone for like almost an hour ,i checked the battery. Total time was around 14 hours, 2hours plus screen on with 65 percent left.
[Xperia Z Q&A, Help & Troubleshooting] 5worthington:
Standby battery life on AOKP seems to be good. Don't know why Bluetooth has used 97% I didn't have it on once

View attachment 2038066 View attachment 2038067
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
Does it ntfs work and prevent wake locks?
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Possible reasons

1.Do you have some sort of cloud sync in synology app. that backs your data to NAS ?

2.Have you enabled content sharing under media server settings ?

3.DoomKernel related .. ?
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
1. Nope no file ssync. Except Album app Picasa... And I tried One day without any file browser app! Still happened.

2. Nope.

3. Nope, just installed 4.2.2 and stock kernel! Happened again.

https://picasaweb.google.com/m/view...15156/5547706734776836801/5889104167476432722

I think it might come From Walkman app, I have .MP3. flacc. wma. wmv files on ad card!
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Really tricky situation. Oh well, freeze walkman and see if it helps

Sent from Sony Xperia™ Z
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Still getting pretty decent results :)

Stamina off, greenify donation, what's app excluded from greenify..

Sent from Sony Xperia™ Z
[Xperia Z Q&A, Help & Troubleshooting] venky716:
:good::good:

I get 4+ with greenify and stamina off but standby not more than 1d.

Please could some one clear up the build.prop and init.d tweaks situation I've mentioned in my last post on the previous page.

Does it help battery life ?
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
First time i hear about qcom_rx on XZ :/ . Quick search on google and it's mentioned in nexus forums , some kernel thing/driver.

Joys of 4.2.2 i suppose :eek:

You said that MMC1 disappears when you remove SD card ? Then i don't see a relation to sync of internet connection :rolleyes:

No ,just outlook app set to periodically check my 2 accounts

Don't know as i don't use them :p
[Xperia Z Q&A, Help & Troubleshooting] sea2605:
By the way: did anyone test up to which brightness-levels the battery life is still the same?

For example in the xperia S forum they found out that the S has the same battery life in the brightness-range of 15 to 50%.

Would be great to know the same for the Z !
[Xperia Z Q&A, Help & Troubleshooting] :
Every review I've read says the battery life is poor, so I'm guessing that it is and there's no defending it?
[Xperia Z Q&A, Help & Troubleshooting] hebbe:
As far as i know, stamina halts the background processes, except for the neccessary and white-listed ones. and that's something you can't do. if you shut down a needed process (manually or via a task-killer), then the android-system tries to restart the process... the novelty is, that this is implemented into the os' kernel. and the processes are paused, not shut down (starting them again costs more time and energy than just resuming).

---------- Post added at 09:02 PM ---------- Previous post was at 08:57 PM ----------

it's not about defending, but about fairness and reliability.

when it's true that sony batteries do need a few charging cycles before having their full potential (as statet on various threads), then an early review isn't reliable in terms of statements about poor/good battery life.

when buying a new car, you have to run-in the engine. so you are not allowed to full throttle or to fully accelerate. then you cannot say the car/the engine is crap or poor just because on my first drive i couldn't get the promised acceleration from 0-100 in 6 seconds and couldn't drive the maximum speed of 200km/h?!
[Xperia Z Q&A, Help & Troubleshooting] :
Dont get me wrong it is putting me off from the reviews but I still got it coming on Thursday and will judge for my self. If it does end up crap in the long run for my usage then i'll just sell its and get the S4 but time will tell. Willing to give Sony the chance.
[Xperia Z Q&A, Help & Troubleshooting] The things I tell you:
Re: Xperia Z battery life

As the Z uses a lithium ion battery, priming the new battery over the first charge cycles shouldn't be required. The real issue here is that battery technology hasn't really progressed that far in the past 30 years or so. Phones are becoming more powerful and demanding more power in spite of efficiency savings in components. The battery life of any of the 2013 flagships won't be that spectacular when compared to, say the xperia arc, which can manage 2 days of moderately high usage. Just as the battery life on phones like the galaxy s3, galaxy s2 and one x are all relatively poor with their multi-core processors.

Even if a breakthrough technology was announced tomorrow, it would take years to be realised in a commercial setting. Realistically, if you want high usage out of a high-end phone then you'll have to make provision to charge it away from home - ie. a spare charger/dock that you can keep at work, an external battery pack that you can pop in your bag, a spare battery if you have the removable option. It's obviously not an ideal situation, but all phone manufacturers are restricted by the slow progress in battery technology improvement.
[Xperia Z Q&A, Help & Troubleshooting] TheNeighbor101:
Re: Xperia Z battery life

And also to remind everyone that in order to maintain the efficiency and the ability to hold a good charge, you need to keep the charge in the region of 20% to 80%. This prolongs the battery life (that ability to hold the charge) even more so.

It's like you notice your laptop's battery losses to hold a charge after some time because it gets ruined with the constant charging. That's why you now see laptops getting their charging cut at 80%. I wonder when a utility app like this is implemented on Android.

Deep discharging with fully depleting the battery is not good either. This is the sort of maintenance that should be practiced even more with fixed batteries like in the XZ.

For more on this:

https://www.youtube.com/watch?v=rOi1NF7Ipek&feature=youtube_gdata_player

SG Note II rooted with stock 4.1.1
[Xperia Z Q&A, Help & Troubleshooting] barondebxl:
Re: Xperia Z battery life

Interesting. What would be spectacular by your standard? ( it's a serious question, I'm not being a smart ass :) )

Id love some new battery technology on our new powerful phones as well, but I think right now that the software and hardware should be as efficient as possible. Also shipping a phone like the droid DNA for example, with a 2020mah battery is just ridiculous.

I think that battery life like Note 2 and razr maxx hd should be the new standard, if the razr maxx can have a 3300 mah, why can't HTC or Sony do it too? Especially with no options to replace the battery.
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
I think the only reason is weight en thickness.
[Xperia Z Q&A, Help & Troubleshooting] maverick1103:
Re: Xperia Z battery life

Agreed, those both phones have set the standard imo, I'd rather have a slightly thicker phone so it has a bigger battery! Tbh 9.3mm (Mot Razr Maxx) is still pretty thin! My Note 2 is a beast for battery life and I know I'm going to struggle when I get the XZ but it's a sacrifice I'm willing to make! :cool:
[Xperia Z Q&A, Help & Troubleshooting] barondebxl:
Re: Xperia Z battery life

I understand that but something's gotta give. What's the point of shipping a killer looking phone with a killer design that is gonna spend 6-8 hours on charge (2 charges a day)?
[Xperia Z Q&A, Help & Troubleshooting] TheNeighbor101:
Re: Xperia Z battery life

"The battery survives well in standby mode, because of the handset’s power-saving facilities, with the display on juice drains quickly. We only got a tad over four hours when media streaming – insignificant when compared to the six hours from the HTC One X+."

Source:

http://www.3g.co.uk/PR/Feb2013...g-co-uk.html

This is even a worse look into battery performance! It would just mean that you need to plug this to charge whenever you can if you heavily use the XZ. Sony really needs to do better to increase WHILE the screen is on and not just when it's off.

Tell us honestly, actual users of this device: How much SCREEN-ON time do you actually get from a full charge? The above report says just over 4 hours. It's it the same?

SG Note II rooted with stock 4.1.1
[Xperia Z Q&A, Help & Troubleshooting] brambizimski:
You can't really tell that yet because the battery requires some powercycles to reach it's full potential, but there is a guy here, who speaks very good of the battery life.

Best current battery issue explanation ever.
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
I think it's all about your usage pattern, and looking at the first user reports it could be enough for me. Perhaps I only have to charge extra when my day will be extra long. But than I am able to charge it at work. I guess if you have a very long commute and watch a movie or two during that time it is not sufficient. But there are only a couple of phones that are sufficient for very heavy use.
[Xperia Z Q&A, Help & Troubleshooting] :
More hate about the battery life now from Slash Gear. Hope I wont be sending this phone back cause it looks lovely.
[Xperia Z Q&A, Help & Troubleshooting] hebbe:
they have the device for 2 days, charge it three times and dare to judge the battery life?!
[Xperia Z Q&A, Help & Troubleshooting] :
Good point.
[Xperia Z Q&A, Help & Troubleshooting] kyogiro:
Re: Xperia Z battery life

Battery life shouldn't get any better with some cycles when using lithium based tech (lithium ion or Li-Po).

What it will actually accomplish is a better software reading at your battery life remaining.

At first, the software will guess at its best what is you battery life level. After a full charge, it will know for as precise as it can, the 100 % mark. After a full discharge, it will know as well the 0% mark.

As for now, Android will shut down your device if the software thinks that you've reached 0% battery life while it could get a bad reading and you could still have 5 % (not likely to be wrong more than a few percent, 5 is actually huge).

I won't recommend to do that too often as a full discharge can harm lithium battery (I don't even bother to calibrate my battery as first aka doing 1 full cycle as it normally would be unnecessary).

1 full charge = effective 100% charge, if you charge 3 times you phone like this 30%, 20% then 50%, it will count as only 1 cycle.

Some manufacturers would recommend to do a full charge cycle once in a while (once per month), it's in order to redefine the max and mins marks especially if you don't use your device (not likely to be your smartphone, but could be a ipod like device) quite sure often as lithium tech based batteries have a better power consumption if continuously used.

Usually, most manufacturers would implement some safeguards to ensure that the system will never reach the actual 0% mark (not the software % that you could eventually read, not likely since it would shut down at below 1%) since it could really harm the battery (possibly deadly if reacher really low voltage per cell).

The way most moderns batteries lithium based are made, they would lose 20% of their capacity after 500 full charge cycles (~ 2 years depending on use).

Since most manufacturers implement safeguards and I'm only cautious when the battery power is very low, I don't really care about day to day use. Just charging every night because I want to have a full charged battery in the morning.

Apple guidelines regarding lithium : http://www.apple.com/batteries/

The only rule I follow : avoid depleting entirely the battery. Never got any problem if there wasn't one in the first place (defective battery that I replaced the following day).
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
Still no gsmarena battery stats, I'm wondering what is taking so long.
[Xperia Z Q&A, Help & Troubleshooting] :
Ausdroid rate the battery good. Odd how there's so many bad reviews and a few good ones.

Pros

Big, bright display – 5 inches of 1080p goodness. 440 ppi makes for a beautiful image.

Solid, yet slim, design that can withstand being dropped or drowned.

A close-to-stock Android experience, with a few Sony tweaks

Big, beautiful battery – 2330 mAh that lasts for hours and hours

Sony is developer-friendly. Rooting and modding is easy

Broad 4G support – works on Telstra and Optus 4G, and will support Telstra’s increased 4G spectrum.

Screamingly fast, however …

Cons

Inexplicable lag when typing, whether using Sony’s keyboard or the stock Android 4.2 keyboard

Colours on screen wash out unless you’re looking at the display straight-on

Some of the built-in apps, modified by Sony, are ugly. Calendar is a good example.

The edges of the handset feel a little rough. Some rounding would have helped.
[Xperia Z Q&A, Help & Troubleshooting] Al Gore:
There's only one explanation - the battery hasn't discharged yet!

And how can a battery be beautiful?
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
LOL, yes that must be it!
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
[MENTION=3056043]Haldi4803[/MENTION]

Yeah, it's probbably that. I remember i had i had some drainage from "devices. apk" on. 350fw. Are you rooted? Enable root features in BBS, so you get alarms readout..

[MENTION=5154557]sea2605[/MENTION]

Unless it was done with fixed brighness i doubt that's possible.

Adaptive brighness is a. whole another story though .

You should be fine with adaptive@50%, unless you spend most of your time outside.

There's maybe 10-20mins of screen time difference between 20 and 50 adaptive brightness on XZ(depends on light situation)

Sent from Sony Xperia™ Z
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
If you can Find why this MMC 1 detect wake locks happen I will send you a beer heheh.
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Faulty external sd.
[Xperia Z Q&A, Help & Troubleshooting] DoubleYouPee:
Ye so half of us have faulty SD?

My SD is fine
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
No it is not faulty this is a common problem. Something causes it.
[Xperia Z Q&A, Help & Troubleshooting] gm007:
90% of peoples here at xda are saying faulty sd.

One of them http://xdaforums.com/showpost.php?p=30641581&postcount=59
[Xperia Z Q&A, Help & Troubleshooting] DoubleYouPee:
All he says that his problems were gone when he removed his SDcard... No ****.

My SDcard mounts fine on PC and works perfectly.
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Why i don't have this wakelock?

Because i don't use an external sd ;)

So better if you try different sd cards.

It's not a problem cause we know what cause it.
[Xperia Z Q&A, Help & Troubleshooting] DoubleYouPee:
Ye..."external SD card" is the problem..

You think that's OK?
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Try different one??
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
SO it is a kernel problem. A mounting issue or trying to mount even when there is no sd card.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Okay... wiping Cache and Dalvik Cache helped! Now MMC1_detect is gone! (still no SD card)

Only the qcom_RX_wakelock but that one is from bugged 4.2.2 firmware.

Time for tests with ExFat.... should work on 4.2.2....
[Xperia Z Q&A, Help & Troubleshooting] gm007:
4.2.2 is really good :)

3g all the day,xda,browsing,playstore,whatsapp,few calls...
[Xperia Z Q&A, Help & Troubleshooting] gm007:
And this before my battery die.
[Xperia Z Q&A, Help & Troubleshooting] burnthepriest:
Noticed this morning that my battery went from 100% to 66% overnight. I did put a SD card in the phone for the first time but was charging the phone via pc prior. I was told by another XZ user that charging off PC wont give you enough charge as opposed to direct wall socket? The battery has been pretty good though prior to me putting in a SD card.
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
So without an sd card there is no mmc1detect obviously. But still we dont know whats is exactly causing it right?
[Xperia Z Q&A, Help & Troubleshooting] nielneal:
did u removed bloatware stuffs and all the unwanted stuffs like mirror,mhl,facebook,twitter and all...????
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Sure ;)
[Xperia Z Q&A, Help & Troubleshooting] DoubleYouPee:
According to some posts before you can have mmc1detecht without SDcard
[Xperia Z Q&A, Help & Troubleshooting] gm007:
You read only half of the posts,cause he already say the after wiping cache and dalvik no more mmc1 wakelock.

http://xdaforums.com/showpost.php?p=42714371&postcount=1195
[Xperia Z Q&A, Help & Troubleshooting] DoubleYouPee:
So? it still means the mmc1_detect wakelock can occur without SDcard... for whatever reason.
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Haha as you like.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
IMO it CAN occour when you plug a SD card, and then unplug it again! without rebooting device.

But one thing is for sure... ONLY happens when WiFi is connected!

btw..... didn't post that one yet, right ?

ExFat formated SD card.
[Xperia Z Q&A, Help & Troubleshooting] burnthepriest:
Hey guys, noticed that the android OS seems to be the most active under power management [see below]. Should I be concerned about keep awake seeings as I always make sure to close out apps when I am done with them and that I haven't been using the phone much today?
[Xperia Z Q&A, Help & Troubleshooting] dante501:
Yes on WiFi battery life is very good. On mobile data not so much.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
New Test... Wipe Data, Factory Reset, Wipe Cache (+dalvik) NO apps installed, no accounts set, no sync! Nothing!

And then! I took a different microSD card! (8gb from my tablet)

Still exists! Time for wipe Cache and try again with new Card.
[Xperia Z Q&A, Help & Troubleshooting] nseriessaga:
I have used the Xperia for a couple days. Out of the newer devices that I've tried which includes One, S4, Optimus G Pro, the Xperia is at the bottom with no question. I will say that the One is just a tad bit better.. The S4 is significantly better than both, while the Optimus for obvious reasons trumps all of them. I have no idea how the Optimus G gets bad reviews for battery.. and i've used the note 2 also.

Anyways, staying on topic, I would say the Xperia is pretty much smack in the middle between an iPhone 5 and S4 in terms of battery performance. So by todays standards, it does have below average battery performance imo.

But i will add that out of all these phones, the Xperia is my favorite without a doubt. But for me I have so many extra chargers that I leave at work, car, home, etc... that its not too big of a deal. A wall charger (micro usb) can be purchased for like $5 so not its not too bad.
[Xperia Z Q&A, Help & Troubleshooting] campoki:
I have eXistenZ v3 stock rom, battery lasts around 3 and half hours with the CPU Control function enabled. I have stamina mode enabled, using data when there is no wifi, all day connected to 3G services. Days worth of use: Play around half an hour of gaming ( Hill climb racing). Have the email synch to 30mins, and the gmail of push notifications, (so synching all the time I believe). All the other times I'm using dolphin browser to check FB, and twitter. I don't watch any videos at all, not even YouTube.

I reckon that's reasonable right for battery life?

Just wondering, it is safe to use the CPU Control function and won't harm the hardware/cores of the Xperia?
[Xperia Z Q&A, Help & Troubleshooting] Aresmar:
Friend there is 4.2.2 change log which says: 64GB sdcard support.

4.2.2 may solve this mmc1 detect issue.

Maybe this happens only on 64GB cards?
[Xperia Z Q&A, Help & Troubleshooting] DoubleYouPee:
No I have 32GB and have it.

Will try as soon as 4.2.2 OTA comes
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
I'm on leaked 407 thats 4.2.2;)
[Xperia Z Q&A, Help & Troubleshooting] EmeraldTimer:
Just stamina mode on, excluding Whatsapp, G+, Facebook and Messenger

.407
[Xperia Z Q&A, Help & Troubleshooting] dvd777:
Question: what is fastdormancy app? I deleted it today :)
[Xperia Z Q&A, Help & Troubleshooting] sea2605:
Fast dormancy saves battery life if your carrier supports certain sleep-modes of mobile data. If it isn't supported: remove it, to save some battery
[Xperia Z Q&A, Help & Troubleshooting] Dsteppa:
The funny thing is that I had the mmc1 detect wake lock in the beginning, but it's almost completely gone now. Also using a 64gb card (that's 96% full). In deep sleep I lose about 1-4% in 8h without Stamina mode.
[Xperia Z Q&A, Help & Troubleshooting] Admiral AnimE:
Hey, can someone explain how the phone is awake during the big screen off period on the first screenshot? Stamina on, wi-fi on, no exceptions in stamina, .307 firmware. I lost 6% in that period, about 9 hours. And should i be worried about the stuff on the second screenshot? I have no idea what's that really, new to android and especially wakelocks.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
msm_hsic_host is for the Baseband. if you want to get rid of that you need Flight mode.

The Power Manager Service is all the Partial Wakelocks together. Cause by some app. you can see that under Partial Wakelocks.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Still Wakelock on 423 firmware....

strange enough it doesn't happen always...