yashsingh1/xdaforums huggingface dataset:
[Sony Xperia S, Acro S, Ion] del1701:
Well I did this this morning and it worked, and I have to say that from what I can see so far my battery performance has really improved :) I'll charge my phone tonight to see if I get anymore out of the battery.
[Sony Xperia S, Acro S, Ion] Efe64:
Lol, battery was at 1. Was waiting until off.

My phone went crazy so i was gonna reset. ( both volume and power, not power and up volume)

Rebooted and batterybis now 10%

I think the battery kernel or something is not good...

Need a fix for thos 2, for the capacity
[Sony Xperia S, Acro S, Ion] Gyrael:
has anyone experienced improved battery life after updating to .67 ?
[Sony Xperia S, Acro S, Ion] ironlady:
Perhaps one should do a few research before buying the phone?

Look. The XS is using the old Snapdragon S3 chip. Compare it with the Arc/Arc S. If battery life already sucked on those devices, how could the battery performance be better on the XS? Furthermore it packs 2 cores and higher frequency clock.

But problem here lies on idle mode. What you could do is to remove bloatwares, free apps with adverts. Apps with frequent ads appearing may also be your battery vamp. Lower brightness. Use SetCPU to lower down Minimum Frequency Clock to whatever lowest possible. Switch off Bluetooth/Wifi/Networks when not in use.
[Sony Xperia S, Acro S, Ion] gurubumsmack:
That's the thing. My wife has an Xperia Arc S and I find the battery life on that perfectly acceptable. It will easily do 1.5 days. And that's running completely stock rom, without custom roms and kernels.

Its not a rouge app.

Since switching to 2G only mode my battery is currently 83% after 15 hours away from the mains. I'd be in the 40-50% if network mode was 2G/3G. If it was bloatwares and free apps with adverts then I'd be experiencing similar battery drain than before, but I'm not.

Yes the S3 SOC is older and there is a 720p display to drive, but it should be seeing out the day comfortably. I'm not expecting 3 days use here. I was happy doing the following with my Desire:

Arrive in office at 7.30am - Charge for 2 hours

Disconnect from mains

Check emails, Facebook, send a couple of texts and a 5-10 minute call. Maybe 5 mins of browsing whilst on the bog

Drive home - phone connected to in car bluetooth (will rarely get a call)

Connect to Wifi at home - web browse whilst wife watching TV. Browsing on and off

Bed

Wake up, repeat above.

The Xperia S was struggling to do that!
[Sony Xperia S, Acro S, Ion] saqaw:
so guys whats the verdict?

Can it easily last a day with normal/average usage?

I am so confused!... i really want to buy this set but the battery life is holding me of.........
[Sony Xperia S, Acro S, Ion] Cholek3:
Has anyone done a Battery test in Service Menu? I wanted to check my battery capacity and by mistake run the test. I could cancel it, but I thought "why not". It said it could take up to several hours, but now it is 6hrs and still running. I don't want to stop now and I was wondering if anybody done it before and know how long it takes?
[Sony Xperia S, Acro S, Ion] gurubumsmack:
Well volunteered Cholek3 :D
[Sony Xperia S, Acro S, Ion] Roberts56:
I done the battery test for 3 1/2 hrs and turned it off! Might give it a go on a friday night when I dont have to set an alarm for work!
[Sony Xperia S, Acro S, Ion] Rashkae:
Root the phone and freeze the process that's been mentioned about 6 times already. I get over a day with normal usage, on par with the Arc.
[Sony Xperia S, Acro S, Ion] Cholek3:
Almost 7hrs now and still running. Damn.:( Don't think it is worth to stop it now. Will post result later when it's finished.
[Sony Xperia S, Acro S, Ion] Xadious:
It might be testing your battery by draining it completely...or at least when only a tiny amount of power is left after which it will give a result? May aswell let it run and see how long it can go.
[Sony Xperia S, Acro S, Ion] Razje:
6hrs on

10min call, 10min whatsapp, 10min browsing

78%
[Sony Xperia S, Acro S, Ion] Cholek3:
I am thinking about stopping the test now, to be honest. Don't get me wrong, but screen is on all the time (white background) along with transparent strip lit up. Should I be worried about it? It is 9 hours by now.
[Sony Xperia S, Acro S, Ion] bustervic:
I just tried that reset, battery showed at 15000 before (said good as well) after the reset was at the 17500.

Charging now, once it is topped up I will let you guys know.

I am on the unlocked and rooted .67. I never had a huge issue with battery, I am a heavy user and was getting 16 or so hours on average from 100-20%
[Sony Xperia S, Acro S, Ion] deanfield:
how you froze this service? In the "running services" list? I did not see this service in my running service. But my battery drops fast in standby.
[Sony Xperia S, Acro S, Ion] dragon546:
See post #251 on this thread mate :)
[Sony Xperia S, Acro S, Ion] sephstyler:
I've been loosely following this thread. My XS is probably on the better side of things battery wise, but am interested in also trying out the freeze method.

for those of you who have frozen the wake process, does this have any usability impact?

1. All push items (email, IM) still come through per normal?

2. Background processes?
[Sony Xperia S, Acro S, Ion] emwgee:
I can now report that the battery life had been improved dramatically since I did the battery "activation".

My battery used to drain around 20 - 25% (wifi, bluetooth, data and autosync turned off) overnight after a full charge, but last night it only lost 6%, I still get 94% this morning when I woke up. Hope this actually resolve the issue, I am going to keep monitoring in the next few days to see if there are any variations.
[Sony Xperia S, Acro S, Ion] ssj_jaypee:
Quite embarrassing this new phone is having huge battery issues out of the gate.

Should not need to tweak the phone to get decent life.

Hopefully Sony will resolve this glaring issue soon!
[Sony Xperia S, Acro S, Ion] keunhuvac:
Mine already had 1750k when first checked 1 week ago.
[Sony Xperia S, Acro S, Ion] bustervic:
Pretty heavy use, some Angry Birds, FIFA, 1hr of music etc.

I'll have a better idea tomorrow.

Oh it was at 48% here
[Sony Xperia S, Acro S, Ion] gm007:
I have activated the battery yesterday To 1750000 but today it revert back to 1680000 :confused:

Sent from my Sony Xperia S-LT26i
[Sony Xperia S, Acro S, Ion] somemadcaaant:
Maybe the .67 update changed the battery to 1750k. I got my phone and updated straight to it.
[Sony Xperia S, Acro S, Ion] sh500:
Yes, couldn't agree more. The battery should not be this bad, regardless of how bright the screen is, or whether the data connection is left on, etc, etc. From the posts here and many other phone reviews, the battery is poor even with moderate use.

Mine dropped from 41% to 17% overnight - for it to drop that much just in standby?? Yes I have read about the wakeup process, but we shouldnt have to tweak that sort of stuff from day 1 on a stock ROM.
[Sony Xperia S, Acro S, Ion] Roberts56:
I fully charged my phone over night since doing the "Activation" and woke up this morning thinking I will have a better battery today.

A 15 minute drive and my battery had dropped 4%! So i got to work to check the battery health and it went down to 1650000 again?!

So I done the activation again and turned the phone back on and now says 1750000, but had dropped down immediately to 72%!!

On charge now and hopefully this means I will get a battery finally :)

Will give update tomorrow!
[Sony Xperia S, Acro S, Ion] sssache:
I have Sony Xperia S from 24 Hours. After i have installed al my programs the battery started to go down normally. In about 6 Hours of heay use i have arrived to 20%. Charged again in the evening and during the night i have activate from the preinstalled program Power Saver the power saver mode and in 7 hours of standby went from 85% to 83%. I will see the next days how is the battery life, but is obvious that if if everything is activated and the syncronize is set to every 5 min. in the smartphone the battery will go down like crazy.
[Sony Xperia S, Acro S, Ion] doministry:
The battery life settled on particular level.

Idle drain is minimal, acticity eats battery especially with data transfer.

Screens eats battery too.

In the end I don't see anything strange here. Maybe the software can be tweaked to eat less power, but it's not bad. It's just maybe not allowing heavy usage for a very long time if you want to have 24hrs on one charge.

The device behaves predictably.
[Sony Xperia S, Acro S, Ion] Xadious:
You're wrong! Very wrong. Just because you're getting good battery life means nothing. You seem to have missed the parts where people, including myself, have left the phone on in IDLE MODE as in NOT USING IT and battery is draining super fast with everything switched OFF. It's clearly a software bug.

You must live close to a 3G cell tower preventing the need for the phone to keep switching to 2G, for most people it's the switching between 2G and 3G that is causing the battery drain in IDLE MODE! As in screen switched OFF/black along with everything else.

---------- Post added at 02:31 PM ---------- Previous post was at 02:23 PM ----------

For those who missed my previous post,

a temporary fix

is to force the phone to use one network mode instead of automatic dual mode: Settings --> Wireless & Networks --> Mobile Networks --> Network Mode. I selected WCDMA (3G) and it's fixed the battery problem.

After doing this, my battery drained only 8% in 24 hours in Idle mode instead of the 50% it was doing before. However, this isn't a permanent fix as you want the phone to switch modes depending on location for best reception. This can be used until Sony issue a fix.

Unfortunately what's worrying is, i sent Sony customer service info about the issue and detailed what might be causing the battery drain in idle mode and asked them to forward the info to the relevant software programming department; instead of doing so they replied back with some generic, copy/pasted reply telling me about the return policy to have manufacturing faults repaired :confused: I clearly told them it was a software bug and not a hardware problem.
[Sony Xperia S, Acro S, Ion] gurubumsmack:
I'm going to set mine to WCDMA now and see how battery performs.

Had it set to GSM for the last 2 days and battery life has been excellent.

I'm now interested to see if WCDMA network coverage is poor where I live. If its at 1 or 2 bars at home, then it would explain the poor battery life as my phone is constantly flicking between GSM and WCDMA when idle. I should also see battery life drop and the phone is drawing more power searching for a signal.

At work this moment in time on WCDMA with full signal strength.
[Sony Xperia S, Acro S, Ion] doministry:
No, you are wrong. It's probably the app which causes the drain or your phone is just very new.

Of course it's very bad if your phone has faulty battery, that is a problem indeed,

but what I'm saying is let the phone work and settle, constant fiddling around the battery and settings actually ****s things up instead of improving.
[Sony Xperia S, Acro S, Ion] olaf63:
Can I suggest to all who have abnormal battery drain to perform a total reset of the phone and restart with few apps running. Normal battey drain overnight i've seen it'around the 3% with good 3g coverage and data off.

I've also seen that many apps can cause battery drain. If the phone last so porly has to be faulty but there hsn't to be so many.

Mine has died today at 6 starting from 95%this morning but with 3,5 hours of surfing web in a bad reception office and with gmail and whatsapp in auto syncing. From my experience with gs2 and the atrix are about equal.
[Sony Xperia S, Acro S, Ion] Xadious:
If i'm wrong then how do you explain the existence of this very thread? No offence, but your advice is terrible. Simply letting it settle isn't the problem, the problem is that the battery is draining too fast in IDLE MODE...and it's doing so for a reason and not because we installed some rubbish app. It's not a physical problem either; the battery is a very generous 1750mah battery.

The problem is related to the phone switching between 2G and 3G too many times in idle mode, that's why a lot of people (myself included) are reporting that selecting either 2G or 3G (rather than automatic dual mode) fixes the problem. As mentioned by another member in this thread, it's possibly related to the com.sonyericsson.android.wakeup process, either way, it's a software bug and nothing to do with physical aspects of the phone.

To those who are having the battery issue, select either GSM or WCDMA instead of putting it in dual mode; this will increase the battery life by a huge amount. This is a temporary fix until Sony fix the 2G/3G switching BUG. To do this go to: Settings --> Wireless & Networks --> Mobile Networks --> Network Mode. And select WCDMA (or GSM if you're happy with 2G)

Before my phone was draining 50% in 24 hours with no use at all; everything disabled, blank screen etc. Now in idle mode, after selecting WCDMA (3G), only 8% drained after 24 hours and the battery was still at 92%. That's a drastic improvement.
[Sony Xperia S, Acro S, Ion] bustervic:
This was at 50 % after a full charge the day after I did the reset. Moderate use w/o disabling gsm.

I'll try it again tomorrow w/2g disabled.
[Sony Xperia S, Acro S, Ion] gurubumsmack:
After doing this, battery life was pretty much the same as when I forced it to GSM mode.

WCDMA quality at my home is full strength, so there goes my theory of the phone switching between the 2 network modes due to poor signal. So its nothing to do with poor signal quality and definitely not a rouge app. The fact I've been getting excellent battery life with forced network mode proves that.

I'll leave it on WCDMA mode until Sony pull their finger out and release a fix. Must say, it makes using the phone a much better experience knowing that it'll easily last a whole day.

Over to you now Sony.
[Sony Xperia S, Acro S, Ion] Xadious:
Seems the exact reason for it is the com.sonyericsson.android.wakeup process as stated by superlimau/post 66.

Another thread on fast dormancy.

Article on fast dormancy.

Interesting quote:

Seems best option is to disable the com.sonyericsson.android.wakeup process after rooting the phone. Those who've rooted the Xperia S, which software did you use? SOC?
[Sony Xperia S, Acro S, Ion] doministry:
Whatever bull**** runs your boat.

Just look at replies above.

If you would have a little more brain and knowledge you'd know what I'm talking about.

For others: Sony may optimize the software due to improving battery life.

But I don't advise any extensive fiddling around the processes and battery.
[Sony Xperia S, Acro S, Ion] gurubumsmack:
Interesting....

I wonder if O2 support the fast dormancy feature?

My phone is SIM Free/Carrier unbranded and has probably has this feature enabled by default.

Are people with a handset provided direct from their network operator (SIM Locked/branded) experiencing the battery drain issue?
[Sony Xperia S, Acro S, Ion] Xadious:
I got the phone on an O2 monthly contract and the battery problem exists (for other people who got the phone from O2 also).

I think i might wait for IcecreamSandwich and if the problem persists, i'll just root the phone and disable the process.
[Sony Xperia S, Acro S, Ion] E9rendil:
hello,

I also have the issue battery but only when I used the camera.

The application gallery represents almost 42% of the battery use for just 30 seconds of use and is allways active Inthe application manager... :confused:

If I do not use the camera, i have no battery drain.

The phone is sim free.

Thefirmware is 6.0.A.3.62 and no update is offered to me.
[Sony Xperia S, Acro S, Ion] Trappyhappy:
I think you are wrong, and you have a bad attitude. You shouldn't talk about lacking knowledge. If you are of a different opinion than many others here, you are free to state your own theory. Just don't hold it as a general truth just because you think it is. Besides the change isn't "fiddling", its just i choice thats just as easy to change back. Rooting the phone, however, i believe to be borderline "fiddling". :-)

For me the switch to a single connectiontype (3g) significally improved battery drain. It's still not optimal though.
[Sony Xperia S, Acro S, Ion] doministry:
I'm not talking about rooting which is great.

I'm just sure fiddling around battery life is not helping anything but rather distracting.
[Sony Xperia S, Acro S, Ion] E9rendil:
I found two services that I did not know in gmail account:

Sync, instant upload

Synchronize Picasa Web Album

I disable these two services and that night I have lost only 2% of the battery ...
[Sony Xperia S, Acro S, Ion] Felimenta97:
Why the Gallery uses that much battery?

Sent from Xperia X10 Mini Pro using CM9 by paul-xxx
[Sony Xperia S, Acro S, Ion] :
Why the Gallery uses that much battery?

Sent from Xperia X10 Mini Pro using CM9 by paul-xxx

IF YOU HAVE BRAVIA ENGINE ENABLED IT WILL DRAIN BATTERY BECAUSE OF THE RENDERING TRY DISABLING IT:)
[Sony Xperia S, Acro S, Ion] doministry:
I have those OFF.
[Sony Xperia S, Acro S, Ion] Mwolthuis:
Bravia only works in Gallery. It's not rendering the homescreen etc. So it should not be the problem when the phone is idle.

It's just a problem for Sony to solve. I've tried various things (freezing, restart, "unlock" battery) and they don't do much.

Guess we just have to be patient. And that's difficult. :rolleyes: :D
[Sony Xperia S, Acro S, Ion] :
yeah i know it works for the sony gallery app so if he uses gallery app much try to disable it and se if it help

dosent hurt to try :)
[Sony Xperia S, Acro S, Ion] Mwolthuis:
That's true. But the real problem is the battery-drain in idle state. It's discharging fast for a phone when lying on the table doing nothing. :rolleyes:
[Sony Xperia S, Acro S, Ion] Evil_Sephiroth:
Here..over 48 h with normal use + download and update app on 3G

task killer ON
[Sony Xperia S, Acro S, Ion] del1701:
Which task killer would that be ?
[Sony Xperia S, Acro S, Ion] gm007:
Lol you forgot + charger plugged :p
[Sony Xperia S, Acro S, Ion] Razje:
Battery gets better and better :)
[Sony Xperia S, Acro S, Ion] mmarekk11:
Please could anybody who is watching this thread from the beginning summarize these 30 pages to few sentences? I really dont have time to read it all, and i want to know what is general opinion to battery life or how it´s life is in real.

And do you think it gets better with ICS update?
[Sony Xperia S, Acro S, Ion] :
you see the XS battery drain may be a software bug or others saying 2g/3g network switcing that eats battery / Screen Quality eats Battery / or the wake up service

and some says battery is getting better over time

.67 fremware update may help the battery

so i thing the battery will get better over time

and we should wait for ICS it has better a hadling battery performance

sorry for my bad english :)

---------- Post added at 06:04 PM ---------- Previous post was at 06:00 PM ----------

maybe it will get better over time :confused:
[Sony Xperia S, Acro S, Ion] Efe64:
Updating to firmware 67 helped a little for me.

Switching to only 3g helped me for the idle thing.

Cant wait for ics
[Sony Xperia S, Acro S, Ion] Evil_Sephiroth:
Advanced task killer

Ehehehe nono, now in charge...tuesday i provide a screen^^

Yes....need 5-6 charge to reach max
[Sony Xperia S, Acro S, Ion] slybeans:
My battery has been pretty good, T-Mobile haven't updated to 67 yet though!
[Sony Xperia S, Acro S, Ion] Razje:
T-Mobile Netherlands Released Update .67

And afaik it's a great battery improvement :D
[Sony Xperia S, Acro S, Ion] keithwalton:
I have had pretty shocking battery life off mine so far but it has had wifi on, i'm currently trying it with wifi off and 3g only to see if idle drain is any better.

Interestingly from the battery monitor it isnt spending much time awake (ie its idling properly) yet its still eating 5%/hour idle.

I noticed from doing a couple of tests that the governer doesn't drop down all that low (192mhz i think i saw) so they could tweak it to drop down further.

Something from my galaxy s days though that really improves idle drain is the 'deep idle' function (didle) that was put in some custom kernals it turned the phone from a 2 day idler to a 10 day ones. (got less than 1/2% an hour drop)

didle worked nicely in gingerbread but there has been some issues with it in ics where it causes random reboots
[Sony Xperia S, Acro S, Ion] ergo14:
21h unplugged with 28% juice left, .67 firmware data synchronisation on over the network, wifi off - but i hardly used the phone at all today, had one short call and maybe checked email for a moment.
[Sony Xperia S, Acro S, Ion] andoridkiller:
20 Hours Dead, not used once (as I have not unlocked) so its been idle. Sync is on push and Wifi is only on. WDCMA only so it wont switch networks and brightness about 30-40%, but its been idle since first charge. So its really disappointing.
[Sony Xperia S, Acro S, Ion] Rami1987:
about 26 hours unplugged and 54% left ! I set the network search to Manual and I use only 3G (WCDMA Only ), brightness 85% to 90% and I use a program to automatically turn off data when the screen is off and that program made a huge different with my phone - almost doubled my battery life .
[Sony Xperia S, Acro S, Ion] sorethroat:
What program is that?
[Sony Xperia S, Acro S, Ion] Rami1987:
This one . It is quiet expensive but it worth every single cent of it !
[Sony Xperia S, Acro S, Ion] shahulvm:
Battery Life improved

I had removed below two apk's which helped to improve the battery life.

1. FastDormancy.apk

2. Calendarysync.apk

I dont use calendar, yet it was taking alot of juice....you can move the above apk's to /sdcard.. you would get a wakeup.service error, just reboot the device and it would be all fine.
[Sony Xperia S, Acro S, Ion] gm007:
Yesterday while sleeping the battery drop only 7% in 7 hours, data was on in 2g area with automatic network mode and background data + sync was on.

But the weird thing that officesuite app has been launched alone,i never use or open this app :confused:
[Sony Xperia S, Acro S, Ion] system02:
Hi,

I exchanged my Xperia S because all the battery-voodoo-tips here in the forum didn't help.

Result: My new Xperia S is actually running 2 times longer on battery with the same configuration, programs etc. and it still has 18% left. VERY GREAT!

And the new one does NOT have display problems (yellow tint), it is simply awesome!

I'm happy that I exchanged the phone!!!!! If you're not satisfied: Exchange it and get a new Xperia S
[Sony Xperia S, Acro S, Ion] ash_c64:
Did the same thing a little while back, am so happy with the new one, but everyone thinks its an software issue, which it will be but i think some devices out there are actually faulty espcially the early batchs.
[Sony Xperia S, Acro S, Ion] onemandivision:
I disabled mobile bravia, calendar and picasa sync and also set network mode to gsm. Quadrupled my battery life :)

But it seems there are still improvements to be made. Phone wakes up wa too many times during the night.
[Sony Xperia S, Acro S, Ion] Rami1987:
Guys try the program in my previous post and you will get this result ! and guess what, I still have 21% left !!! everything is on wifi , 3g ( Only ), and 85 to 90% brightness !
[Sony Xperia S, Acro S, Ion] Efe64:
So exchanging a good option?

I will contact them
[Sony Xperia S, Acro S, Ion] Efe64:
Using the phone for abkut 2 hours. Battery draining 40 50 %

Is that normal?
[Sony Xperia S, Acro S, Ion] osman26:
I have the same problems with my device.. Display almost at 10%. And i am not a heavy user.. Will there be a update or shall i change it
[Sony Xperia S, Acro S, Ion] Korumera:
Well my phone is draining the battery like a mofo, and even when i say that wifi has to turn of when screen goes out, it stays on.

Thinking about returning it for a new one.