Power Saving Mode - Galaxy S II Q&A, Help & Troubleshooting

Anyone use this feature on their S2? Its on Sammy based ROMs. I noticed if you enable it, it makes the phone run noticeably slower, which is presumably good to prolong battery life.
Haven't had a good use of it, as I only discovered it yesterday, but does anyone else?
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olyloh6696 said:
Anyone use this feature on their S2? Its on Sammy based ROMs. I noticed if you enable it, it makes the phone run noticeably slower, which is presumably good to prolong battery life.
Haven't had a good use of it, as I only discovered it yesterday, but does anyone else?
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Yes, of course.. It's a feature of JB. But what's your question about it?
Sent from the Matrix

Donnie Sins said:
Yes, of course.. It's a feature of JB. But what's your question about it?
Sent from the Matrix
Click to expand...
Click to collapse
Its also present on ICS
Sorry if I didn't make myself clear, but my question was, do people find it makes a noticeable improvement to battery life?
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olyloh6696 said:
Its also present on ICS
Sorry if I didn't make myself clear, but my question was, do people find it makes a noticeable improvement to battery life?
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Also on gb
And i think it underclocks your cpu, so basicly yes
Sent from my GT-I9100 using xda premium

Its only meant to be used when your battery is running low.
You can switch it on when say your battery is at 30%.
But as you know that will hinder the phones full potential.

Yes, I have seen that there are two options, for system and custom power saving.
When I choose system, it underclocks the CPU, but when I choose custom, it doesn't control the CPU, only the data connectivity options.
Just wondering how much extra juice you guys have managed to squeeze out of it.
Sent from my GT-I9100 using Tapatalk 2

Yeah, I know its primarily meant to be used with low battery, but sometimes when I go on long journeys, and no access to a charger, it may be useful.
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I always keep that on .. does it make any difference ??
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Mr.KiLLeR said:
I always keep that on .. does it make any difference ??
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Click to collapse
You tell me. Do you notice any battery difference with it on or off?
Sent from my Desire S using xda app-developers app

olyloh6696 said:
You tell me. Do you notice any battery difference with it on or off?
Sent from my Desire S using xda app-developers app
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I have not checked it when its off as I told I keep it on lol
This is my battery stats with power saving mode always on
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Ah, we must have very different usage!
I see you're on the leaked JB which drains battery faster.
On stock ICS, without power saver, I can push to 3 hours 20 minutes screen on time. Medium brightness.
Sent from my Desire S using xda app-developers app

Related

I feel bad

That our phone doesn't have this good of battery life. Even without ANY use. This was my old captivate.
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Update : just uninstallled elixir and have WAY better battery life.
Sent from my SAMSUNG-SGH-I777 using xda premium
I feel good.
Sent from my SGH-I777 using Tapatalk
I'm getting 2-3% drain per hour with moderate use and about 1% per hour when idle. I'll take it.
I guess the battery isn't that bad...
The guy who got that result probably is using an extended battery, has barely any apps and no syncing
Sent from my SAMSUNG-SGH-I777
I've had no quarrels with the battery life on the phone. Then again it's regularly on the charger but the battery drain isn't bad at all. Listening to music with the screen off only drains 3-4% an hour.
I feel bad because it doesn't have an fm radio
Those ridiculous screen shots are not practical. Sure I can disable everything, freeze apps with tibu, then leave my phone alone for a few days, but this is a phone. On heavy days of use it easily outlasts the captivate.
Sent from my SGH-I777 using Tapatalk
jivy26 said:
Those ridiculous screen shots are not practical. Sure I can disable everything, freeze apps with tibu, then leave my phone alone for a few days, but this is a phone. On heavy days of use it easily outlasts the captivate.
Sent from my SGH-I777 using Tapatalk
Click to expand...
Click to collapse
+1 Meaningless example(op). It's a phone, you use it for a variety of tasks. Standby time on my GS2 is worlds better than my captivate ever was.
If you feel that bad, go back to the captivate
Edit: Off topic @jivy we have almost identical post count and same join date.........sorta eerie and weird........to bad my thanks suck compared to yours lol(just happened to notice this) haha
Hijack intended
I get far better battery life on my S2 than I did with my captivate. Guess results vary.
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fooldog01 said:
I get far better battery life on my S2 than I did with my captivate. Guess results vary.
Sent from my SAMSUNG-SGH-I777 using xda premium
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Click to collapse
Same here. Show me screen time usage comparisons not when its collecting dust.
Throw an I777 into airplane mode and you'll easily beat that.
I think if I turn my SGS2 off and lay it there for 200 hours, it probably still has 50% left when I first turn it back on. Let me capture that and compare.
jivy26 said:
Those ridiculous screen shots are not practical. Sure I can disable everything, freeze apps with tibu, then leave my phone alone for a few days, but this is a phone. On heavy days of use it easily outlasts the captivate.
Sent from my SGH-I777 using Tapatalk
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Click to collapse
+2
I easily get 50% more battery out of this phone than my captivate. With a bigger screen, and more than twice the processing power I can live with a 50% increase and call it good.
Sent from my Galaxy S II (i777)
Hahhaah my battery life is great....custom kernel and roms do the trick. ..man up and root it and unlock the potential.....
Sent from my SGH-I777 using xda premium
I've been using elixir as a running service so maybe that's why
I haven't had to charge my phone since I got it back in November ..still running off factory charge!
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Update: just uninstallled elixir and have WAY better battery life.
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You'll never see the captivate do that with stock battery
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I get over a day out of unnamed 1.3.2 last gingerbread release with moderate usage
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My Results from using SilentBtdeadly's Methods for better life and performance

Hey guys, I know there are a LOT of ICS threads here, but I believe this is truly effective. So this is for ics roms, and its pretty simple, so I'll post the link here so you guys can read some
http://forum.xda-developers.com/showthread.php?t=1628457
All right, so I'll post some pics so you guys can see how effective its been for me.
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Here is my battery life. I started using the method mentioned at around 11 hours 50 something minutes, the rest, 11 and back is before I started using the options. At the moment, its been staying at 20% as I'm writing this lol.
Here, I restricted Facebook app (which I use on a regular basis) background data, and the gray part, which is background data usage has deceased significantly, before the option was disabled, the grey part was larger than the green.
I also, as the link I posted says, limited background processes to 4, which can be found under development in settings.
RAM usage is supposed to improve after doing this. Usually for me, at this percentage battery left, about 500 plus mbs is used. However, in this pic, which is after I applied the changes, I still have the same amount of RAM used as, say, when you reboot your phone.
Will post updated pics tomorrow night
Thanks to silentbtdeadly!!
Sent from my HTC_Amaze_4G using Xparent Green Tapatalk 2
This prolly should have been posted in SBD's thread don't you think?
eggydrums said:
Hey silent is it ok if create a thread where I will post my results from using these changes?
Sent from my HTC_Amaze_4G using Xparent Green Tapatalk 2
Click to expand...
Click to collapse
Silentbtdeadly said:
I would say not unless you ask our mod first, I know he is trying to keep ics threads at a minimum...
Click to expand...
Click to collapse
HOWEVER, I think I may have to try this finally.
Thanks for posting your findings
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glacierguy said:
This prolly should have been posted in SBD's thread
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Click to collapse
Yes I know, but I wanted more people to know my results from this, and I think this is the best way
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Reserved for updated pics
Sent from my HTC_Amaze_4G using Xparent Green Tapatalk 2
I know this stuff works, I have practiced this ever since I posted, taming background processes and data not only makes everything snappier.. I'm pretty sure it saves on battery too(and I have pretty consistent good battery results). I was hoping to have more of a list of tweaks that could be effective to update the OP with.. but I am still happy with those two.
The only thing that sucks is that the background process limit setting gets reset when the phone is restarted.. but it is worth a few seconds to set everytime you reboot.
Silentbtdeadly said:
I know this stuff works, I have practiced this ever since I posted, taming background processes and data not only makes everything snappier.. I'm pretty sure it saves on battery too(and I have pretty consistent good battery results). I was hoping to have more of a list of tweaks that could be effective to update the OP with.. but I am still happy with those two.
The only thing that sucks is that the background process limit setting gets reset when the phone is restarted.. but it is worth a few seconds to set everytime you reboot.
Click to expand...
Click to collapse
Yeah i noticed lol but yeah a few seconds to set dont hurt
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eggydrums said:
Yeah i noticed lol but yeah a few seconds to set dont hurt
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Click to expand...
Click to collapse
could tasker automate it?

Ics laggy or is it just my phone?

Hey guys after upgrading to Ics I've actually noticed my phone slow down. Any suggestions? ANYONE experiencing lag?
Sent from my SGH-I717M using xda premium
nope:cyclops::cyclops:
It was slow on mine too, get cm9 its much faster I'm using it now
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Install the custom rom. Always faster than stock rom.
i using flapjaxx newest release with h0twir3's overclocked kernel set to 1.9ghz and life is good. very good.
jpoirier587 said:
i using flapjaxx newest release with h0twir3's overclocked kernel set to 1.9ghz and life is good. very good.
Click to expand...
Click to collapse
Is the one youre using ics rom? And like is it gonna load up with an at&t logo?
Sent from my SGH-I717M using xda premium
For me...fast, stable...no laggy, Just saying....LOL
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I'm stuck on jamieD81 PARANOIDANDROID and is is fast
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Settings, Development option, window and transition scale .5 on both. You should notice the difference.
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Sarius24 said:
Is the one youre using ics rom? And like is it gonna load up with an at&t logo?
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Click to expand...
Click to collapse
Yes its ics but the rom has its own boot animation which I swap out for nexus animation but no at&t
Sent from my SAMSUNG-SGH-I717 using xda premium
jpoirier587 said:
i using flapjaxx newest release with h0twir3's overclocked kernel set to 1.9ghz and life is good. very good.
Click to expand...
Click to collapse
Does 1.9Ghz take a dump on the battery life? How much is it worse by? Hopefully not completely in relative to the clockspeed...
V8RWD said:
Does 1.9Ghz take a dump on the battery life? How much is it worse by? Hopefully not completely in relative to the clockspeed...
Click to expand...
Click to collapse
i'll get through the day today without charging and moderate use. maybe an hour on the phone. watched half of thor on netflix and read about six chapters of a book on amazon app. it came off the charger around 10am today and will run out around 2-3am im guessing.
**** is snappy man. love it
the trick is to make sure you always charge with the charger the phone comes with to make sure your note is going into deep sleep. besides it only hits 1.9ghz when it needs to. it doesn't run at that speed constantly although you could force it to if you wanted but that would surely eat the battery alive and i'd be scared of frying the processor

Battery life isn't great. Please help

OK guys so I see people getting 7-9hrs screentime on 4g and I don't nearly get that. In just 32minutes of use I lost 7%. I'm on 3g no WiFi gps or BT. Here are some screenshots. I tried clean ROM and jellybeanz with Perseus and stock kernels. Any idea? I'd like as much screen time as possible.
Thanks so much
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This may sound rediculous but I notice somedays my battery runs down a lot quicker than other days. Doesnt make sense but thats how it seems to me. Are you using the cable that came with the phone and plugging into a wall outlet?
3g eats a lot more battery from what I have seen...LTE and Wifi are the easiest on battery. That being said I still don't think 3g should be causing that much drain...I bet you have a rogue app since the app usage shows 50%
droidstyle said:
3g eats a lot more battery from what I have seen...LTE and Wifi are the easiest on battery. That being said I still don't think 3g should be causing that much drain...I bet you have a rogue app since the app usage shows 50%
Click to expand...
Click to collapse
I havent even seen 3g since Ive had my Note 2 but this is odd compared to other devices Ive had.
Just use the stock battey monitor. Seems that it has worked best for me.
Yep using included charger and cable. Here is my app list
See anything out of the ordinary ? Really want to get this fixed
Sent from my SCH-I605 using Tapatalk 2
These are mine.
What kernel and ROM? Any over clock or settings change?
Why do little apps use so much in mine? How do I fix this
Sent from my SCH-I605 using Tapatalk 2
Beans V6 with perseus kernel. Im not sure why your phone is using so much. Maybe someone else knows.
Me either. If someone could please help I'd appreciate it. Shouldn't be so high usage
Sent from my SCH-I605 using Tapatalk 2
Download better battery stats and grant it super user rights. Let your phone sit for a couple hours (without touching it) and pay your read out from it here. It seems like you have an app going crazy, but just simply looking at your installed apps won't help.
Sent from my SCH-I605 (AKA NOTE 2)
OK just installed it. No idea how to use it though. What shouldbibscreenshot?
Sent from my SCH-I605 using Tapatalk 2
how many hours of screen usage on 4g do you get?
Thanks
Open it to grant super user. Then let your phone sit for at least an hour or two. It's best overnight. Then post your kernel wake lock, partial wake locks and alarms.
Sent from my SCH-I605 (AKA NOTE 2)
You had the phone on for 9hrs and only dropped to 93%? Why r u complaining.? 40 minutes screen time at 93% after 9hrs off charger isn't bad at all. If I'm seeing that right.
thats correct, but while using it for a straight 60mins, it drops over 15%
Try One Power Guard. Need Root access..
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takumibunta said:
Try One Power Guard. Need Root access..
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Click to expand...
Click to collapse
What setting do you recommend? My phone is slow after I enabled it.
Sent from my SCH-I605 using Tapatalk 2
How can I get it so app ends when back button out of it? I always have to force close them which apps like xda might hurt battery. Or only way is to go to settings and force close?
Sent from my SCH-I605 using xda app-developers app
thrgk said:
How can I get it so app ends when back button out of it? I always have to force close them which apps like xda might hurt battery. Or only way is to go to settings and force close?
Sent from my SCH-I605 using xda app-developers app
Click to expand...
Click to collapse
Is under developers options
Sent from my SCH-I605 (AKA NOTE 2)
60% app usage is not normal. Idk how to lower it. I use opera and xda that's it mostly
Sent from my SCH-I605 using xda app-developers app

Nos m7 2.0 & bm5.6

I love this Rom & kernel
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how did you installl it?
How's battery life?
thanks
darkriff said:
how did you installl it?
How's battery life?
thanks
Click to expand...
Click to collapse
I tried 5.6 but I think stock that comes with this Rom is better
B5.6 1836/384 lionheart noop about 15 hours
Sent from my HTC6435LVW using Tapatalk 2
axeldiks1 said:
I tried 5.6 but I think stock that comes with this Rom is better
Click to expand...
Click to collapse
Why, i installed 2.0 and battery life has decreased
I use the same combo but 1809/192 intellidemand noop and get about 12-18 hours with 2-4 hours screen on time.
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This kernel is so much smoother than the stock one . I could only get about 10 or 11 hours out of it.
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I Dont know guys stock is so smoooth and battery life is awesome
No way you could get that high of a score on stock. Stock I was getting around 8000.
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bryant23109 said:
No way you could get that high of a score on stock. Stock I was getting around 8000.
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Click to expand...
Click to collapse
He is referring to beatssmode
axeldiks1 said:
I Dont know guys stock is so smoooth and battery life is awesome
Click to expand...
Click to collapse
I agree man, I have never seen any issue running the stock kernels on this phone so far. I have always had better results in both smoothness and battery life with a stock kernel.
I will reserve my opinion on custom kernels for another time.
Sent from my HTC6435LVW using xda premium
axeldiks1 said:
I Dont know guys stock is so smoooth and battery life is awesome
Click to expand...
Click to collapse
Running this ROM and stock kernel. I average 15-16 hours with medium use. I'd say that's plenty good. I'm not an overclocker so I personally see no use for a custom kernel.
Droid DNA-unlocked
Nexus 7-Stock
Sweep to wake is a very nice feature to have.
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Nowak4G said:
Sweep to wake is a very nice feature to have.
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Click to expand...
Click to collapse
It's nice but I don't have a problem pressing a button to wake my phone in exchange for better battery life and less bugs. Just my opinion.
Sent from my HTC6435LVW using xda premium
WizeGuyDezignz said:
It's nice but I don't have a problem pressing a button to wake my phone in exchange for better battery life and less bugs. Just my opinion.
Sent from my HTC6435LVW using xda premium
Click to expand...
Click to collapse
This. It's second nature for me to wake my phone with the power button anyway. Sweep to wake isn't all it's cracked up to be. I ran BM for a bit. Too buggy for me.
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croppz said:
This. It's second nature for me to wake my phone with the power button anyway. Sweep to wake isn't all it's cracked up to be. I ran BM for a bit. Too buggy for me.
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Click to expand...
Click to collapse
How is it buggy...
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Bigandrewgold said:
How is it buggy...
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Click to expand...
Click to collapse
Buggy was the wrong word. I should have just put that my battery life was terrible. No disrespect to zarboz, he's a good Dev and works hard on these. Just wasn't my cup of tea.
Droid DNA-unlocked
Nexus 7-Stock
Beastmode was slightly faster overall, and got the same battery life. That's my experience.
Why it got removed though, is 2 random reboots in a day with default options is too many. I like speed, but i'm not settling for anything less than functionality on our powerhouse of a phone.
What settings would you recommend guys

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