yashsingh1/xdaforums huggingface dataset:
[Sony Xperia S, Acro S, Ion] Poesini:
I'm using KA09 and Advanced Stock Kernel 8

And my battery is good unless what everyone else noted, i use WiFi

Probably lasts like 4 hours on heavy music - Facebook chat - Whatsapp

Still waiting on the release for the custom kernel so we can lower voltage and save even more battery

But yeah i think GB consumed less battery
[Sony Xperia S, Acro S, Ion] system02:
Simply NO! It IS some kind of Firm- or Hardwarefault.

I quote myself:

----------------------------------------------------------------

I believe that there must be some kind of defect in the batteries or the Xperia S hardware!

I had 5(!) Xperia S phones and tested them with the exactly same configuration (no additional apps installed) and same firmware (.75) and they had big differences:

- 2 of them drained the battery in approx. 10 hours of standby

- 3 drained their battery between 20 and 30 hours.

Why didn't I keep one if them? Because none was free of faults. Awful battery, noises during phone calls, complete yellowish display... it could be such a wonderful device. :-(

-------------------------------------------------------------------
[Sony Xperia S, Acro S, Ion] belek1979:
it's a exception.

yellow screen needs just a replacement and no more yellow spots...

i cant believe its hardware issue... and maybe 1% its a battery failure...
[Sony Xperia S, Acro S, Ion] heeroyun:
My battery has been treating me well since day one. It could last from 1.5 to 2 days depend on my usage :D
[Sony Xperia S, Acro S, Ion] rkanwar:
As long as my battery lasts me the whole day im happy with it which it does for me :)
[Sony Xperia S, Acro S, Ion] kidga:
Yes, the same issue, waiting for official 4.0 - maybe it`s help.
[Sony Xperia S, Acro S, Ion] hawkPL:
For what it's worth, my battery life is now much, much better with the official carrier-branded ICS update. Went from .75 Gingerbread to ICS with SUS, no wipe.

On GB I had to charge the phone every day with moderate use, every 2 days if used very little. Now with regular use (a few calls, a few text messages, checking Facebook every now and then, wifi always on, mobile data always on, auto sync on, almost always on 3G/HSPA network) battery drops to 50% in about 24 hours. I haven't done any exact measurements, but trust me, it's a huge improvement over Gingerbread for me.

Also ICS works smooth here - and has been more stable than .75 so far.
[Sony Xperia S, Acro S, Ion] avindal:
To all of you with battery issues: log off from Latitude! For me that made a huge difference in battery life.
[Sony Xperia S, Acro S, Ion] hawkPL:
Oh yeah, I have GPS disabled - thanks for reminding me about it. But even when it was enabled, I hardly ever used it, so it shouldn't have made much of a difference, I guess.
[Sony Xperia S, Acro S, Ion] wernerzero:
Better Batter Stats tells me that Power Manager Service and Alarm Manager, could be the juice thiefs on my phone.

And both are system so I guess it's tough to get them tweaked..?

Also every widget kills battery and slows down the phone. So NO weather, calendar or power widgets. Syncs only every 1 hour or less.

Cut down on camera and video use. And so on... :crying:

I'm sad that I had a SMARTphone with GB and now a DUMBEDdownphone on ICS, because I can't have all widgets and apps running, anymore, that I would like to... :(

W.Z,
[Sony Xperia S, Acro S, Ion] shmoejoe:
My battery life is just fine on ICS, but that could be because I don't use my phone intensively for hours out of the day.

From what I read, our ICS update made the phone not use as much battery on standby. Even when I have my BT on for extended amounts of time I still have quite a bit of battery after the end of the day, so I don't know, maybe a lot of people just got a bad flash, or didn't wipe :/.

I am certainly getting better battery than on GB. Before ICS if I skipped a charge accidently (usually charge every evening) my phone would be dead, but I can easily miss a charge and have less than 50% or so when I wake up.

basic info/use profile? (if that helps):

rooted + junk removed

Wifi almost always on

BT on when wifi isnt (usually along with GPS, for exercise app)

Gaming maybe an hour or so a day/checking news/checking XDA every hour or so

Sync: on

Sending and receiving lots of texts

Weather widgets with syncing

No facebook/twitter/timescape crap :D

I don't know if that helps, but at least you get the idea of how I use my device, I will try and post a decent battery screenshot at some point, but I am pretty happy with the ICS update.
[Sony Xperia S, Acro S, Ion] rkanwar:
Im using stock gb and last night I thought id do an experiment. Before I went to sleep I charged my phone then unplugged at full. I left my wifi on and left my phone off charge, I have used it this phone for about half hour approx. Here are my findings

Is this a good drain or has their been better on our device?
[Sony Xperia S, Acro S, Ion] lordoftheriffs:
Seems ok to me. Wifi is a little high though.

---------- Post added at 01:07 PM ---------- Previous post was at 12:59 PM ----------

I had an interesting finding while charging the phone:

As you know, when charge level reaches 90%, charging speed drops significantly. I checked cpu usase with cpu spy, resetting the results, and found out that during that stage of charging (90% to 100%) the cpu is constantly working at 384 MHz, and the device never gets to deep sleep when in lock mode. As soon as the USB cable is plugged off, the phone returns to deep sleep mode.

By the way, I have used only 3 percent for 7.45 hours overnight. At least 2 times better than stock GB, and even slightly better than custom GB rom. :laugh:
[Sony Xperia S, Acro S, Ion] metcard:
Could someone with root and ics check with better battery stats what application or service is keeping the phone awake for so long?

My keep awake time is constantly over 1 hour over a 10 hour period.

Looking at a few other people's battery usage it seems as if though it's an os bug rather than my phone specifically.
[Sony Xperia S, Acro S, Ion] danraid:
Hello!

Something really help my battery last longer was to completly discharge my phone until it shuts down, then fully recharge it while still powered off.

Since then, I've noticed the battery has improved a lot. I hope it helps.
[Sony Xperia S, Acro S, Ion] tel033:
I have a really big doubt! BATTERY MONITOR WIDGET says my battery is Li-poly isn't it supposed to be li-ion?? Can anyone confirm if the same program says the same to you

Thanks!

Edit: please help! MY Battery Status and Battery Mix Battery widget Battery solo widget and Battery info(apps) they all says my battery is li-poly

Help!!
[Sony Xperia S, Acro S, Ion] Mrimstad:
Had some issues at first, battery time after a litle wile became better though.

Had 26% left after 50+ hours with a day to day use, some text some calls some wifi/3g etc. Now this was beefore i got to remove the damn powersaver app wich kept the phone awake. Now reflashed and waiting for battery to calibrate again and check the new usage.

But all in all im quite pleased if it can keep the former 50+ hours upp.

Have to admit though that seeing general system apps keeping the phone awake

isnt exactly pleasing.
[Sony Xperia S, Acro S, Ion] tel033:
Look this is what android says
[Sony Xperia S, Acro S, Ion] Kyrius:
I'm on stock ICS and my xperia S used 4% in 7hrs. Wifi, bluetooth, gps, snyc all off during that time, but data was on and GSM only.
[Sony Xperia S, Acro S, Ion] doministry:
^ that looks just right..
[Sony Xperia S, Acro S, Ion] harfot:
...and of what use? If you have to turn everything off you have bought the wrong phone.
[Sony Xperia S, Acro S, Ion] Kyrius:
This was while i was sleeping :p you don't need all that turned on when you don't use your phone do you?
[Sony Xperia S, Acro S, Ion] emwgee:
Yap, agreed.

I would rather get a dumb phone instead of a smart phone if everything can be turned off.

It can be much cheaper also.............. :cool:
[Sony Xperia S, Acro S, Ion] metcard:
Yep. That doesn't look right at all.

Can you check how many minutes your phone has been kept awake. by system android?

My Xperia play over a 10 hour period, with WiFi on, push notifications on 3 apps enabled, weather updating every hour will lose 3% and android system shows less than 1minute of awake time.

My Xperia S in 5 hours has nearly 2 hours of awake time caused by android system, that's essentially 10% battery drain doing nothing over a 5 hour period and I don't have push notifications or anything updating at all.

It's absurd.
[Sony Xperia S, Acro S, Ion] Kyrius:
Sorry, i reflashed ICS again with official release for my SI number - meaning there is no previous data available
[Sony Xperia S, Acro S, Ion] harfot:
Of cource not, but I do not find that's the right way of doing it with this type of phone.

To me the problem is that the battery drains 2-3 times faster than GB doing the same tasks - that is not right :o
[Sony Xperia S, Acro S, Ion] Kyrius:
I noticed something. My S was kept awake nearly half the time in the last 3hrs. When i cleared all recently opened apps running in background and disabled auto snyc it went back to normal. It has no problems going into deep sleep anymore. Many apps depend on auto sync and interfere with deep sleep.
[Sony Xperia S, Acro S, Ion] metcard:
You shouldn't have to kill all apps just to temporarily fix a stupid bug which drains your battery, a bug which was supposed to be fixed on Android 2.1. My X10 had this very same issue on 1.6.

This is my Xplay after 4days10hours:

My XS after 10 hours has

CPU total of 11m50s

CPU foreground 55s

Keep awake 1h45m25s

WTF!?

Battery life is still decent on the XS though, but if this bug was fixed it could be very good.

Just for ****s an giggles.

A Xoom running 4.0.4 ICS after 4days

CPU total 52s

CPU foreground 14s

Keep awake 16m6s

Gmail push notifications/auto sync on, apps auto updates from play store and weather updating every hour
[Sony Xperia S, Acro S, Ion] AndroBoz:
My Battery Life improved a lot performing a factory reset on my phone after upgrading to stock ICS from stock GB.

A fresh install of all my market apps, and now battery is as good if not even a bit better than GB.

The only problem is losing all your data.
[Sony Xperia S, Acro S, Ion] Kyrius:
i'll try betterbatterystats and report back ...

EDIT: BBS shows in partial wacelocks that 28% of time, since full charge, alarm manager (part of android system) kept my phone awake. With alarm set or no alarm set. I tried both options. In this 3hrs i didn't use wifi, bluetooth or gps though, but wrote about 50 sms and talked for 30min.
[Sony Xperia S, Acro S, Ion] metcard:
O.K. I think I might have found the problem.

Ironically I think Powersaver is the culprit.

I went to application management and selected running apps and noticed that Powersaver was stuck on Enabling.

I decided to enable the stupid thing and set it to only engage when my battery hits 1%. The app now doesn't appear on my active applications list, so i guess it's closed until it is required (at 1% battery).

Check it.

Before;

After;

*40 minutes of Keepawake (when screen is off).

Hopefully the problem is fixed.

Before enabling powersaver BetterBatteryStats showed 42minutes of Alarmmanager activity in 5 hours, after powersaver it's now showing 45minutes, so in 5 hours it's added less than 5 minutes which I find acceptable.

---------- Post added at 04:41 PM ---------- Previous post was at 04:12 PM ----------

Alarm manager has no connection with Alarm clock. It basically wakes your phone if it needs to update for something. eg. if weather needs to update every hour alamrmanager will note that and wake the phone up every hour to update the weather.

Here's a proper explanation:

http://developer.android.com/reference/android/app/AlarmManager.html
[Sony Xperia S, Acro S, Ion] rkanwar:
Hi guys. I hesitantly experimented my battery life and here are my results with light to medium heavy usage on stock gb .75 firmware
[Sony Xperia S, Acro S, Ion] Kyrius:
Yeah i noticed later. But it really seems to be the couse. I'll try disabling to see if it has the same effect.

EDIT: can't disable it :( setting it to 1% then :)
[Sony Xperia S, Acro S, Ion] metcard:
Yep. You can't uninstall or disable. :eek:

7 hours of enabling powersaver and my awake times look normal. So I'm quite confident that the issue has been solved.

Please keep us updated to see if your issue was solved too. :good:

My Android System went from being #1 power use at 20% in 5 hours, and dropped to #5 @ 7% after 7 hours of powersaver enabling. 13 hours total.
[Sony Xperia S, Acro S, Ion] element800:
To disable power saver ;

Go to applications --> running

Then select it and press "Stop" (Basicly just stop the proces)

Also look if it's not in the "Cached applications" list ;)

You will see that your system won't wake anymore :D
[Sony Xperia S, Acro S, Ion] metcard:
Unfortunately the power saver application launches itself even if you force close it.

It seems the only way to disable it permanently (without having root) is to enable it. :eek:
[Sony Xperia S, Acro S, Ion] azreezalazrul@gmail.com:
This is my xperia s life battery are this normal use it to my xperia s life battery.
[Sony Xperia S, Acro S, Ion] element800:
Strange... On mine it doesn't relaunche?
[Sony Xperia S, Acro S, Ion] metcard:
https://play.google.com/store/apps/...251bGwsMSwxLDMsIm5leHRhcHAuc3lzdGVtcGFuZWwiXQ..

download that app and see if it's running or not.

Some services don't show up on the built in app manager.

If power saver doesn't launch straight away it will launch itself after a while.
[Sony Xperia S, Acro S, Ion] element800:
I honestly don't care about that I can only see with my eyes that my phone doesn't wakes up when the screen isn't on anymore ;)
[Sony Xperia S, Acro S, Ion] djdroidHD:
I have both the S and U. S have the worst battery compared to U.

Im planning to return it next week and would buy any samsung mobile. Xperia U is perfect sony device for me.
[Sony Xperia S, Acro S, Ion] jonmorris:
I stopped using the power saving app after it failed to run properly. Despite people having problems stopping it running - those that DO want to use it have the problem where it frequently exits to free up memory, and thus doesn't activate (or deactivate).

A totally useless app, especially if you disable GPS and wake up to see it asking you to confirm you accept the T&Cs of having GPS on (surely, you could select 'do not tell me again' for this?).

I've also opted to keep my phone locked to WCDMA only, just as people had to do on earlier GB revisions because of that battery problem. It's better for me as I prefer to have the phone not swapping to 2G and GPRS data.

With no power saving mode activated and being locked to 3G, my phone spends more than 50% in deep sleep mode and the battery is just fine.

And, even though people still keep saying to wipe the phone as this magically fixes the problem, the phone I've done all this on is the one I merely upgraded - without wiping any data.
[Sony Xperia S, Acro S, Ion] naughtb4:
so do i enable or disable Powersaver??
[Sony Xperia S, Acro S, Ion] Kyrius:
As you can't disable it you should set it to start when battery reaches 1%. This method seems to help.
[Sony Xperia S, Acro S, Ion] doministry:
Power saver app cannot be uninstalled (without root)

but can be disabled - just turn it off inside.
[Sony Xperia S, Acro S, Ion] Sikiduck:
Will wiping the phone make the battery better or what?

Right know when I'm using my phone, 30% brightness, wifi and gsm network only, I lose about 50% per 1 1/2 - 2 hour with active use.

Can avast! Mobile Security make the battery worse? It's not scanning or anything.
[Sony Xperia S, Acro S, Ion] smallz2k:
Try using a task manager to see what background apps are running and turn all the auto sync's off and any widgets that just use all the juice from the battery,none of the phones at this kinda spec are really good with power,the screens alone take quite alot.
[Sony Xperia S, Acro S, Ion] Sikiduck:
Here you can see some of the apps using most battery, please take a look:

Not sure which apps these are, but its using a bit yeah..
[Sony Xperia S, Acro S, Ion] 23qwerty:
I have to admit, I was a bit worried about the battery life when I ordered the xperia s. But since I've had it for a few days now, I've been pretty pleased with it. Not sure what all the fuss is. Turning off the bravia display engine seems to save a ridiculous amount of battery.
[Sony Xperia S, Acro S, Ion] Elixx13:
Its that an app or a custom theme? Im a newbie and I find that many tasks manager apps doesnt work very well...
[Sony Xperia S, Acro S, Ion] metcard:
sigh...

I'm still getting battery drain for no apparent reason.

2% drain in 30 minutes doing nothing. 20 minutes of alarm manager activity in less than two hours.

Back to gingerbread for me.
[Sony Xperia S, Acro S, Ion] a4rocks:
Always have a look at your apps installed and see if they are conflicting. It is the very case most of the times. Fortunately, the battery of my XPS is pretty close to that of a SGS3 despite heavy usage. I am loving ICS. Though I am using a custom ROM.
[Sony Xperia S, Acro S, Ion] metcard:
I have tried everything. I tried running the phone with only stock apps installed, then disabling a bunch of apps there is nothing else I can do but flash back to gingerbread.

I have about 3 times as many apps installed on my Xperia play and I get less awake times in standby on the play in 4 days than I do on the xs on ics in one hour.
[Sony Xperia S, Acro S, Ion] minhtri:
can you please tell me what is this app u are using ?

thank you
[Sony Xperia S, Acro S, Ion] theXperiance:
I get 9-11 hours on moderately high use
[Sony Xperia S, Acro S, Ion] Sikiduck:
It's an app called GO Power Master :)

Very nice app.
[Sony Xperia S, Acro S, Ion] gm007:
ICS non rooted and nothing stopped.
[Sony Xperia S, Acro S, Ion] metcard:
unless you were listening to music for over 2 hours or you are updating the weather every 2 minutes, your held awake time is too high.
[Sony Xperia S, Acro S, Ion] doministry:
So far battery AS GOOD as GB .75
[Sony Xperia S, Acro S, Ion] minhtri:
u mean this ?

https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats&hl=en

but the theme is different, how can u do that ?
[Sony Xperia S, Acro S, Ion] Sikiduck:
Oh mate, I'm sorry. It was the wrong app xD

App is "GO Power Master": https://play.google.com/store/apps/details?id=com.gau.go.launcherex.gowidget.gopowermaster
[Sony Xperia S, Acro S, Ion] keewanchoapsss:
I left my Xperia S for 3 days while I was away at a festival and in those three days it's drained just 57% from 100%. That was with data left on as well. UK Three network ICS stock.
[Sony Xperia S, Acro S, Ion] FenrirMX:
New record.

Granted, I didn't do much with it during the weekend, but still, I NEVER got this performance with GB. I did get normal weekday usage from it today though.
[Sony Xperia S, Acro S, Ion] Fekish:
You didn't turn your screen on at all? :)
[Sony Xperia S, Acro S, Ion] Sikiduck:
Lost 41% of 100% in 2hours with light active use like face and xda, 20% brightness nothing els. Normal?

Also during the night my phone was in flightmode but I still lost 8%. I checked and "AlarmManager" was on all time in flightmode. Whats that? I didnt had any alarm on.

Edit: will wiping the phone make the battery better? Have to know cause vacation tomorrow and want better battery if wiping will do the trick.
[Sony Xperia S, Acro S, Ion] subcu1ture:
I am getting great battery now with ICS.

Before with GB it would last only a day and nowadays it can do 48hours plus with light use.
[Sony Xperia S, Acro S, Ion] relesman:
What app is this?
[Sony Xperia S, Acro S, Ion] FenrirMX:
I turn flight mode on when I'm asleep, I don't know about you, but I don't do much surfing or talking while asleep.

I did say I didn't do much with it during the weekend. Monday, though, was regular use throughout the day.

Why so aggressive, though? I do have to ask
[Sony Xperia S, Acro S, Ion] Sikiduck:
It's GO Power Master :)
[Sony Xperia S, Acro S, Ion] gm007:
If you didn't update through pcc it's time to do it.

better than flashtools,and wipe is recommended.after that you need to calibrate the battery for 3days.

I usually lose 12%/1h while browsing.

Cause it's useless to post the duration if you didn't use your phone.

The battery can last forever if you turn off the phone :D
[Sony Xperia S, Acro S, Ion] djdroidHD:
Download battery saver pro from market. Set sleeping time in it. Set level to 4.
[Sony Xperia S, Acro S, Ion] Sikiduck:
I flashed with PCC but I did not wipe. Thinking about rooting.

Calibrate the battery? Is that needed?

Wow, only 12%..
[Sony Xperia S, Acro S, Ion] gm007:
Yes calibration is needed,full charge and discharge without plugging the phone into pc( if possible :p :D)

Look my battery down,it's more than enough,1 day + 3 hours screen on.
[Sony Xperia S, Acro S, Ion] rkanwar:
What level of brightness do you use?
[Sony Xperia S, Acro S, Ion] gm007:
All the time
[Sony Xperia S, Acro S, Ion] rkanwar:
Doesnt it cause a problem in day light??
[Sony Xperia S, Acro S, Ion] gm007:
No,you can see clearly.
[Sony Xperia S, Acro S, Ion] FenrirMX:
But I did use my phone... Jesus... Learn to read.
[Sony Xperia S, Acro S, Ion] gm007:
Using a smartphone means at least 3-4 hours of screen on per day.
[Sony Xperia S, Acro S, Ion] FenrirMX:
Funny, and here I am thinking that using a smartphone means utilizing it as a tool for what I need at any given time.

Which is what I did.

Who gives you the authority to determine what using and not using means?

Get your head out of your ass, all I wanted to show was how much it went to with light use on the weekend and normal use on Monday.

Jesus....
[Sony Xperia S, Acro S, Ion] gm007:
Do you usually speak this way with your parent? You have a nice family ;)
[Sony Xperia S, Acro S, Ion] FenrirMX:
So, first you tell me how I must use my phone and now you tell me how I must speak.

Are you always this much of a jackass, or should I feel honored?

Also, very classy to include my family.
[Sony Xperia S, Acro S, Ion] gm007:
Grow up kid...
[Sony Xperia S, Acro S, Ion] FenrirMX:
Right back at'cha
[Sony Xperia S, Acro S, Ion] element800:
FIGHT FIGHT FIGHT FIGHT… Hahaha xD

Sent from my potato ( What else?)
[Sony Xperia S, Acro S, Ion] Sikiduck:
Yeah 25 hours are easy cause your not using the phone at all.. Almost no wifi.

I have wifi on all the time but still the battery on ICS sucks compared to GB. Sad.
[Sony Xperia S, Acro S, Ion] gm007:
6 hours wifi and using 3g all the time, I think 3g suck more battery than wifi ;)

4 hours screen on and I am not using the phone at all LOOOL
[Sony Xperia S, Acro S, Ion] metcard:
http://forums.whirlpool.net.au/forum-replies.cfm?t=1912575&p=39#r768

According to that post the only way to prevent the phone from being constantly awake is to reboot everytime you unplug the phone from the charger. One of the system services constantly wakes the phone for whatever reason.

The problem seems to have affected phones from 2011 too, so hopefully Sony are aware and quick to fix the bug.
[Sony Xperia S, Acro S, Ion] doministry:
My batt life is really great on ICS, especially on idle...
[Sony Xperia S, Acro S, Ion] imrock:
i am having some serious issues with wakelocks here, battery down 7% in 4 hrs in SLEEP MODE!! plz check my stats n advice me what to do
[Sony Xperia S, Acro S, Ion] sessel:
In normal use with oc 156600 mhz
[Sony Xperia S, Acro S, Ion] Mysteryos:
Indeed, My phone is awake most of the time, even during idle times.

Battery life goes to 24 hours max, with 2 hours of video watching & data connection active. No WIFI or Bluetooth. I'll post a screenie when i can.
[Sony Xperia S, Acro S, Ion] tel033:
What app can i use to save battery? Is battery Dr saver a good one?