• After 15+ years, we've made a big change: Android Forums is now Early Bird Club. Learn more here.

Power Saving Mode

N

nseriessaga

Well-Known Member
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?
 
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.
 
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.
 
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.
 
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.
 
rushmore said:
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 it power save on. For me, I see not reason now to have it off unless playing the emulators mentioned above. Media apps and multitasking are still smooth.
Click to expand...

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
 
rushmore said:
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 it power save on. For me, I see not reason now to have it off unless playing the emulators mentioned above. Media apps and multitasking are still smooth.
Click to expand...

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.
 
All depends on what ur doing with the phone. Chances are if you notice performance drop, then you probably are using less juice.
 
scooz16 said:
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
Click to expand...

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.
 
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.
 
c2964170-1907-1492.jpg
 
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?
 

Attachments

  • Screenshot 1.jpg
    Screenshot 1.jpg
    2.6 KB · Views: 252
Haris said:
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?
Click to expand...

Affirmative. Of course if there is/was an app for checking the cpu frequency (root not required) you could check that to see.
 
jbdan said:
Affirmative. Of course if there is/was an app for checking the cpu frequency (root not required) you could check that to see.
Click to expand...

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.
 
Rezard said:
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.
Click to expand...

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?
 
Haris said:
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?
Click to expand...

I think he just means the cpu option under power saver options....right rezard? :)
 
You must log in or register to reply here.
Back
Top Bottom