[DISCUSSION] Xperia S battery life

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rafsuntaskin

Member
Feb 23, 2013
6
0
XS on carbon 4.4.4

Hi guys,

The kk unofficial 2014/08/08 carbon rom isn't that battery hungry, i get 1 and half a day without charging and that's would phone calls and general usage.

I am also using it on my XS but it seems I get only 10hrs even with minimal use. Even Idle drain is too much. Have you tweaked the rom?? Can you please tell the settings and share a Screen SHot??
 

yakupTR

Senior Member
Jun 28, 2013
822
154
Never had this.. Almost 2 hours of screen on time. Using doomplus 1.2 kernel from Chinese forum and 3.9.6 black rom.
dbbc07bb540d0af9b52d01da08b194dc.jpg
c4aa560c0413de9613b88f32918c72c3.jpg
Bro your rom and kernel Pls where?? Waiting.. Pls :)
 

mamboboy

Senior Member
May 7, 2011
108
8
I have really brutal battery drain when I'm using my phone, so I used Better Battery Stats/SetCPU to check the CPU states, and basically it's either 1.5Ghz (most of the time) and occasionally drops to ~300Mhz for a split second (whatever the lowest is)... or it'll go into Deep Sleep when I'm not using it.

Is it normal for it to never throttle down to speeds between that? Every Android phone I've had before did. It seems very inefficient especially when SetCPU will stay at 1.5Ghz and I'm not even touching the screen.

Literally 20 minutes of browsing the web and it will consume around 20% battery!

Using a custom rom (Ultimate BlackXS v3 ) with a locked bootloader/stock kernel
 
Last edited:

rowny

Member
Apr 27, 2015
31
2
Hi,
My XS is 2.5 years old. That makes roughly 900 full charges. Should I replace the battery with a new one? Will there be any difference?
I'm looking at genuine Sony batteries only.
 

anas.shelbayeh

Senior Member
Feb 19, 2014
143
16
Amman
Am facing random shutting down
I thought its a bug in my rom
I changed it then the same problem
I flashed the stock and the same
And sometimes I turned my phone on again it turnd off after booting directly

Any idea?
 

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  • 9
    I just did some tests on browsing time 15% brightness vs. 50% brightness and got some interesting results.

    I did test in Dolphin with "tab reload" add-on set on 1minute. The site I was reloading was technobuffalo which is really heavy to load. But before testing brightness I was curious what is difference in battery usage desktop vs. mobile website on 50% brightness. And the difference was really obvious.

    Desktop site was so power consuming, that the phone got a bit hot. And in 30 minutes it ate 15% of battery. So, 3 hours of browsing and only 10% to spare.



    But luckily mobile sites are a lot friendlier. In 30 minutes 12% on 50% brightness, so 4 hours of browsing and 4% to spare. But the most interesting part was when I changed the brightness to 15% and I got the exact same results. 30 minutes 12%...



    And then I wanted to isolate web browsing so I tried the same tests in airplane mode in case of mobile network eating battery.
    Without network connection half an hour of browsing mobile sites ate 10% of battery with 50% brightness. So, exactly 5 hours of browsing to 0%. But what happens with 15% brightness? Nothing much, 30 minutes 9%. That means 5 hours and 10% to spare, or 5 hours and 30 minutes and 1% left.



    Is it really worth to hurt your eyes on 15%???
    7
    Do you know what? It irritates me reading you people moaning about battery life, it's a high definition phone with an awesome screen, if you want your battery to last a few days, go get a cheap phone that does nothing but txt and calls:mad:

    Sent from my HTC HD2 using xda premium
    6
    As I said I did battery tests with the new Jelly Bean in web browsing and video playback and I must say that difference is really really obvious.

    I did the same tests as before with ICS and compared them.

    All my tests in browsing were done in dolphin browser with auto reload plugin put on 1 min reload. Website I tested was TechnoBuffalo because it is quite a heavy load. Brightness was at 50%.

    To quicky freshen up, my previous results with ICS are found here: http://xdaforums.com/showpost.php?p=37103064 and I will include them for easier comparison.

    In ICS browsing desktop pages was really battery consuming so the first test I did was this.
    Half an hour of reloading desktop version of TechnoBuffalo every minute did consume 15% in ICS. So in 3 hours 90% would be gone, not a very good result.

    But in Jelly Bean the same test ate only 10% of battery. Pretty good improvment right? 1 hour 20% so 5 hours till the phone dies. Almost 2 hours of improvement which is really great.

    screenshot2013-05-30-18-.png
    screenshot2013-05-30-18-.png


    And next is mobile version. My previous result on ICS was 12% in 30 minutes so in 4 hours you would be left with 4%. Not that good but at least better than desktop sites.

    Result in Jelly Bean was so surprising that I had to redo the test once more, because I couldn't believe my eyes. In 30 minutes only 7% of battery was gone so 1 hour 14% and if we calculate, we get 7 hours with 2% to spare. WOW, right? This is whole 3 hours more which is pretty huge improvment.

    screenshot2013-05-30-19-.png
    screenshot2013-05-30-19-.png


    And I got curious what would really heavy load do to battery usage. I did another test with the same mobile version but with 15 second reload which is pretty hard because it loads almost all the time. It loads the page and there it goes again.
    The results aro also pretty good. 10% in 30 minutes so basically the same as desktop site - 5 hours of browsing but I don't know who would load new page every few seconds in real life.

    screenshot2013-05-31-01-.png
    screenshot2013-05-31-01-.png


    Last test was video playback. I tried 720p video in mp4 and mkv to see if there is any difference. And I also tried if there is any difference between Sony's movie player and BS player. But in all tests I got the same result - 9% in half an hour. So 5 hours with 10% to spare. In ICS I got same 5 hours but with 0% to spare so some improvment is there but not that amazing as web browsing.

    screenshot2013-05-30-22-.png
    screenshot2013-05-30-22-.png


    So Jelly Bean is a massive improvment in terms of battery usage comparing to ICS and I am really happy with it.
    4
    You guys should've bought the Xperia SP, S is sooo outdated and weak

    You're absolutely right, I should've hopped on my time machine, gone to the future, and gotten that phone

    Sent from my Nexus 7 using Tapatalk
    4
    I m gone... stay with your beautyfull piece of ... and stay at least two years behind good technology... lol. Bye bye looser.
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    Sent from my GT-I9300 using xda premium

    Virgin detected.
    Fap less, read more.

    Desde el celular.