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General Power Saving Mode

Discussion in 'Android Devices' started by nseriessaga, Jul 8, 2012.

  1. nseriessaga

    nseriessaga Well-Known Member
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    I have the International S3. I want top performance from my phone and have power saving off. Does anyone really notice a huge difference in battery with this mode turned on? I wouldn't think it's anything highly noticeable.. maybe something that'll give u an extra 5% at the end of the day. Or is it a much greater difference?
     

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  2. scooz16

    scooz16 Well-Known Member
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    Any thoughts on this??

    What does it actually do?

    Verizon here
     
  3. Rezard

    Rezard Well-Known Member
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    I know it limits your CPU to 1Ghz.
    I also believe it's making a difference with my battery life.

    I have gotten ~20 hours off 50% of my battery with Power Saving Mode on.
     
  4. nseriessaga

    nseriessaga Well-Known Member
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    I didn't notice any difference. I had mine on for a week and now I've had it off for about a week. If there's a diff, it's minimal to unnoticeable as an average power user. I unplug at 8am and right now I have 51% at 7:44pm. And I've been using the browser non stop for the past hour since I've been home.

    The battery kicks serious azz and this is the only phone I've truly been comfortable using without having an extra charger at work. I don't even think twice about it. With moderate-heavier use this thing is still ready to rock around the clock 24 hours.

    I'm using the quad core version though. Can't speak for the dual cores but I'd imagine their not much different.
     
  5. question729

    question729 Well-Known Member
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    I've noticed it takes off haptic feedback off when you enable power saving mode, but doesn't put it back when you disable it. I wonder what other settings it messed up that way that I can't notice immediately.
     
    tekchic and Dieselbud like this.
  6. rushmore

    rushmore Well-Known Member
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    I have been using the GS3 with power save mode on for the CPU. Off, Quadrant is over 4700 and on it is around 3100 or a little less. The device is still fast and the only apps that seem to suffer are N64, FPse and MAME Overload, since those use a lot of CPU.

    The battery life on the S4 version seems about 30% better with power save on. For me, I see no reason now to have it off unless playing the emulators mentioned above. Media apps and multitasking are still smooth.
     
    question729 likes this.
  7. scooz16

    scooz16 Well-Known Member
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    Very interesting. I hardly ever play games on mine. I think ill keep it off for another few " normal use" days then turn it on for a few days.

    Thanks for the info
     
  8. nseriessaga

    nseriessaga Well-Known Member
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    I agree.. think that it goes both ways. I didn't notice any performance drop with power mode on, but I didn't notice much battery improvement personally with the power mode off. I'm sure there are positive affects on both ends but doesn't seem like anything most people will notice from day to day use.
     
  9. trunkmonkey

    trunkmonkey Active Member
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    All depends on what ur doing with the phone. Chances are if you notice performance drop, then you probably are using less juice.
     
  10. rushmore

    rushmore Well-Known Member
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    For perspective, I had the Droid Inc for over a year. Even with power save on, the GS3 smokes the Inc even with custom roms and kernels. No comparison.
     
  11. scooz16

    scooz16 Well-Known Member
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    Thanks.
     
  12. Dieselbud

    Dieselbud Well-Known Member
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    Can someone explain exactly what 'power saving mode' does? It seems like my phone is always changing. Haptic feedback on/off, ringtones changing, having to manually sync gmail and facebook...

    I turn it on at night to 'save battery' and then everything is messed up. I am using llama profiler to turn all sounds off at night, but I also do not want it syncing all night when I don't need it to. But then I have to keep changing stuff back.
     
  13. mihqke

    mihqke Active Member
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  14. Haris

    Haris Well-Known Member
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    If I only choose to disable haptic feedback, does it leave my CPU at normal speed?

    I would assume that if I leave the other boxes unchecked, they would not be affected correct?
     

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  15. jbdan

    jbdan Well-Known Member
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    Affirmative. Of course if there is/was an app for checking the cpu frequency (root not required) you could check that to see.
     
  16. Haris

    Haris Well-Known Member
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  17. Rezard

    Rezard Well-Known Member
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    There is. :D

    An app called Android System Info logs the current frequency when it starts up.
    It can be found under the "System" tab of the app.
    Pop open "CPU", and check the "Current Frequency".

    With Power Savings on,
    it will never read more than 1026Mhz.

    If you have Power Savings off,
    and are doing enough to tax the CPU (have a video running when you go into the app).
    it will read as high as 1512Mhz at times.

    A root user could get even more power saved by underclocking/undervolting,
    and there would be no nuisance from various other settings changing and/or not changing back.
     
    jbdan likes this.
  18. Haris

    Haris Well-Known Member
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    Are you saying any combination of options that causes the power savings indicator to be selected as on causes the CPU to operate around 1 Mhz?
     
  19. jbdan

    jbdan Well-Known Member
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    I think he just means the cpu option under power saver options....right rezard? :)
     
  20. Rezard

    Rezard Well-Known Member
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    Yeah.
    Power Saving only does what you let it.
     

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