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Best bettery saver for rooted nexus s

OK so I have read different way to save battery power on rooted nexus s but don't know what is best. I am currently using setcpu but can not tell a difference. If anyone has another way please share in great detail because I am new to rooted phones.
Sent from my Nexus S using XDA App

Turning off the mobile data connection will make an enormous difference you won't believe it.
Second is use WiFi when available, it will save tons of battery.

Why does there always have to be a funny guy.
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He's not joking. That IS how you do it.
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Man Im sorry dude read that wrong. I thought he said turn phone off LOL......
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Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)

B3arfruit said:
OK so I have read different way to save battery power on rooted nexus s but don't know what is best. I am currently using setcpu but can not tell a difference. If anyone has another way please share in great detail because I am new to rooted phones.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
can please post what your setcpu settings are? thx dude!

dinan said:
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
Click to expand...
Click to collapse
You're right, wifi uses more power than 3G, and they both use more power than 2G. When idling I'd definitely want to sit on 2G if anything. When you actually need an internet connection though, wifi and 3G will be more efficient. They'll use more power but will download much faster to make up for it.

Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.

dinan said:
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
Click to expand...
Click to collapse
It's definitely the opposite of that, its counter intuitive but WiFi uses significantly less battery life over 3g. I can post some numbers when I get home tonight if anyone's interested. But a good test is leave your phone on WiFi all night, then repeat on 3g and see the enormous difference. Better yet just look at the official Google specs, web browsing time is always higher on WiFi.
I did some real nice graphing of current draw at 2 second sample rate comparing various tasks which is What I'll try to post later..

What's the best rom for battery life?
Sent from my Nexus S using Tapatalk

robstunner said:
What's the best rom for battery life?
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Bionix 1.2 @ stock speed, not the OC-ed version
it's stable, fast, and battery good
i have my data on all the time sync-ing every 30min
and 1 battery can last me a full day without plugging it in

Wifi automatically sleeps if your phone is idle for so long, therefore saving battery. 3g absolutely kills my battery so I have mobile data disabled when not using it. Works well for me. Also screen brightness on 0% using an app works good.
Sent from my Nexus S using XDA App

deeren said:
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
Click to expand...
Click to collapse
I agree!!!!!!

AllGamer said:
Bionix 1.2 @ stock speed, not the OC-ed version
it's stable, fast, and battery good
i have my data on all the time sync-ing every 30min
and 1 battery can last me a full day without plugging it in
Click to expand...
Click to collapse
Should you use setcpu with this rom? Or is it better without it
Sent from my Nexus S using XDA App

B3arfruit said:
Should you use setcpu with this rom? Or is it better without it
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i tried with and without setCPU, and the difference in power saving was marginal
so i removed it.
it probably gave me an extra hour, but there is a bug with setCPU when picking up calls, it gets staticky until the CPU is at 800 Mhz or more
so with all that i mind, i decided to remove it

leerobson99 said:
Wifi automatically sleeps if your phone is idle for so long, therefore saving battery. 3g absolutely kills my battery so I have mobile data disabled when not using it. Works well for me. Also screen brightness on 0% using an app works good.
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True, change the WiFi sleep policy to "never" to avoid this and extra battery savings.

I've been getting the best with CM7 so far, but I think all the roms that are about the same as long as you don't overclock them.
Use a black static wallpaper, low brightness, and get the black-themed MMS and Gmail apps from the Themes/Applications forum.
I can get well through my work day. Usually have 2+ hours of display time on and about 16 hours off the charger by the time I plug in at night with still 20-30% left. Depends on my reception in the day as well, which is pretty bad at work, so I think I'd have 30-35% if my reception at work was good.

deeren said:
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
Click to expand...
Click to collapse
Agreed on all points except for GPS. Since it's an on-demand service, leaving it on makes little to no impact on battery life. The phone only utilizes the GPS connection when an app calls for it and saves you the time of having to toggle it every time you need it. Just leave it on.

RogerPodacter said:
It's definitely the opposite of that, its counter intuitive but WiFi uses significantly less battery life over 3g. I can post some numbers when I get home tonight if anyone's interested. But a good test is leave your phone on WiFi all night, then repeat on 3g and see the enormous difference. Better yet just look at the official Google specs, web browsing time is always higher on WiFi.
I did some real nice graphing of current draw at 2 second sample rate comparing various tasks which is What I'll try to post later..
Click to expand...
Click to collapse
An active WiFi connection uses a lot less than an active 3g connection because the connection already exists and the data transfers faster.
An idle 3g connection uses significantly less energy than an idle WiFi connection. If you aren't using or connected to WiFi, turn it off. Set the WiFi sleep mode to sleep when the screen is off.

Improved battery performance by turning off data roaming ?

Hi all,
Now I've not tried this myself however a friend of mine who recently got a DHD said he was lucky if the battery lasted a day on a full charge however by turning "Data roaming" off (even though he is not roaming) he is now getting anything between 2-3 days on one charge

Data roaming was turned off by default on mine and still the battery drained pretty quick.
Using data of any kind will affect the battery badly. Notes Traveler on my device is the cause of it needing charging every day.
Same as any phone, the more you disable the longer the battery will last.

If everything was implemented correctly by HTC, turning off Roaming should have no impact on battery life at all (provided you don't use Roaming).
I believe that your friend experienced the typical warm-up phase. For some (a lot?) people the battery life is terrible when they first use the DHD, but it gradually gets better.
Your friend probably attributes the increase of battery life to the disabled Roaming, while it is just a "natural" process.

I'm roaming all the time, and my battery is actually pretty good. If i don't use it much it can easily survive two days. My record is three days with light usage. (That was with the stock 1.72 ROM)

What is data roaming anyway???
Sent from my Desire HD using XDA App

Data roaming is set off by default. And data roaming controls data transfer when you are not on your home operator/network, i.e when traveling.

are your friend meant data connection?

MarkieSA said:
Hi all,
Now I've not tried this myself however a friend of mine who recently got a DHD said he was lucky if the battery lasted a day on a full charge however by turning "Data roaming" off (even though he is not roaming) he is now getting anything between 2-3 days on one charge
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Click to collapse
He probably means "3G" off? I've had mine since the end of October and got into the habit of charging the phone every night. But then wondered about the effects of turning off wifi and 3G as, currently, I'm at home most of the time and have a PC with 24" screen to play with. Anyhow, with 3G and wifi turned off most of the time I get 3 days or so from a charge. I haven't investigated turning just one or the other off as life's too short ....
HTH
Dave
PS: and someone will say, well what's the point of a smart phone if you're just using it like a dumb phone? Well, the "smart" bit here in this case is me ....

Yeah, 3G uses a bit, so the first thing i did was to disable it. No point for me using it actually, since it's WiFi all over the place here i live. If i need it, i'll simply enough just toggle it on.
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BazookaAce said:
Yeah, 3G uses a bit, so the first thing i did was to disable it. No point for me using it actually, since it's WiFi all over the place here i live. If i need it, i'll simply enough just toggle it on.
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You're roaming all the time and then in the next post you say that the first thing you did was to disable 3g... Are you just posting in order to follow others opinions or what?
And btw 3g doesn't actuality use much more power when compared to wifi, if you always use it somewhere where the signal is always poor then it's another thing.
Sent from my Desire HD using XDA App

dvhttn said:
He probably means "3G" off? I've had mine since the end of October and got into the habit of charging the phone every night. But then wondered about the effects of turning off wifi and 3G as, currently, I'm at home most of the time and have a PC with 24" screen to play with. Anyhow, with 3G and wifi turned off most of the time I get 3 days or so from a charge. I haven't investigated turning just one or the other off as life's too short ....
HTH
Dave
PS: and someone will say, well what's the point of a smart phone if you're just using it like a dumb phone? Well, the "smart" bit here in this case is me ....
Click to expand...
Click to collapse
If I meant 3G then that's what I would of said. So just to be clear, there is an option "Data Roaming" that when turned on will enable a data connection when you are in another country. My friend claims that while on his home network he has turned this option off and he has seen a big improvement on battery performance. If this is true or not I'm not sure, I just simply thought I would share his thoughts with everyone else.

I did this, once i remembered where it was and I got my old battery life back. So thats a bonus, not having to take my charger to work!

Vispe85
And btw 3g doesn't actuality use much more power when compared to wifi said:
Using System Panel graphs to monitor battery drain I'd concluded that 3G drains battery at about twice the rate compared to wifi.
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Battery saving idea

I've had my sgs2 for a week now and I'm very satisfy with this phone. No problem what so ever. Anyway, I know the phone has this battery saving feature, the data 3g stays at 3g and only change to H only when we download data. So I was wondering if it is possible to get the phone to stay at 2g then goes to H when data is in use? Maybe 1 of the developers here can do this?
Sent from my GT-I9100 using XDA App

That b something id like to have.
Sent from my GT-I9100

Nurra said:
I've had my sgs2 for a week now and I'm very satisfy with this phone. No problem what so ever. Anyway, I know the phone has this battery saving feature, the data 3g stays at 3g and only change to H only when we download data. So I was wondering if it is possible to get the phone to stay at 2g then goes to H when data is in use? Maybe 1 of the developers here can do this?
Sent from my GT-I9100 using XDA App
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Click to collapse
There's an app for that. Maybe Juice Defender? Or something like that, it's one of those. You can set it to only use 3G when the screen is on, and then tell it to go back to 2G when the screen is off, so it isn't as power hungry, and slower data will come in, but it's worth it.

Last night I go to sleep around 1:00 and the battery was 94%. This morning in 10:00 the battery is 90%. I doubt, you can save more then 1% using such app. The only thing that I did is to disable wifi in sleep mode.

Juice defender turn off 3g data when you put the phone to sleep. When you turn it back on, the phone stays at 3g. What I'm try to say is maybe some sort of app that force it to 2g then automatically turn 3g when data is in use. So lets say, I open a web page at 3g speed. after I've found an article I'd like to read, the phone automatically turn to 2g.
Sent from my GT-I9100 using XDA App

By the Way is it possible to only use H+ and to deactivate 3g completely ?

Come on dude 1% is a little right? My sgs2 also has this great battery life when put to sleep. But the problem with our android phones is when we use it continuously. Now obviously from what you are saying, I can tell that your gs2 is in sleep state most of there time. Imagine you spend 30mn reading some threads at xda, watching a movie our listen to music or sending emails..... how much battery life we can save if the phone was in 2g mode?
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(•.•) said:
By the Way is it possible to only use H+ and to deactivate 3g completely ?
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Click to collapse
No, 1st it will suck your battery dry. 2nd you don't have H+ coverage everywhere.

GS3 on Home Wifi

So I just came from an International GS3 and didn't have this issue, which is when I come back home my GS3 will not auto connect back to my home WiFi network, or I've noticed a few times that when at home it just drops the WiFi connnection all together.
Anyone have a fix for this?
Thanks

bothfly said:
So I just came from an International GS3 and didn't have this issue, which is when I come back home my GS3 will not auto connect back to my home WiFi network, or I've noticed a few times that when at home it just drops the WiFi connnection all together.
Anyone have a fix for this?
Thanks
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Click to collapse
I wonder if the US GSIII has weaker wifi than the international version. Anandtech reported that the wifi radio on the GSIII is weak.

I wonder if it's the soc cuz the evolte WiFi behaves similarly to what you describe.

No problems here I usually turn on wifi when getting closed to home and if I'm looking at something as soon as a pull to driveway is already connecting
Sent from my SGH-T999 using Tapatalk 2

bothfly said:
So I just came from an International GS3 and didn't have this issue, which is when I come back home my GS3 will not auto connect back to my home WiFi network, or I've noticed a few times that when at home it just drops the WiFi connnection all together.
Anyone have a fix for this?
Thanks
Click to expand...
Click to collapse
im with tmo and mine auto connects in my driveway and remembers password after a wipe/rom flash.

darren.wlsn1 said:
im with tmo and mine auto connects in my driveway and remembers password after a wipe/rom flash.
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The reason it remember password is because of you Google account
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jgalan14 said:
The reason it remember password is because of you Google account
Sent from my SGH-T999 using Tapatalk 2
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ya i was just giving op as much info. as i could.

darren.wlsn1 said:
im with tmo and mine auto connects in my driveway and remembers password after a wipe/rom flash.
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Click to collapse
same here and on Sprint

darren.wlsn1 said:
ya i was just giving op as much info. as i could.
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Lol I'm not attacking you just saying lol but yeah is good my brother was wondering how did it know his wifi a few weeks ago and since froyo if I remember right it backs it up
Sent from my SGH-T999 using Tapatalk 2

Well I have a Dula Band Apple Router so I switched the GS3 to 5 ghz and it seemed much better. In fact when I ran a speed test with the GS3 in Auto mode, it was all over the place, slow fast, very jerky, but when I ran it in 5GHZ it gave me the max speed on the test.
Now does anyone know if I leave it set to 5GHZ, will that use it for my home router or any router I try to connect to? So I guess Ill have to switch back if I come across a 2.5 router

*#0011# in the dialer turn wifi power saver off, it worked for me
Sent from my SAMSUNG-SGH-I747 using xda premium

SuperChink said:
*#0011# in the dialer turn wifi power saver off, it worked for me
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And what does that do?
And how do you turn it back on?

It will give you better wifi performance, at least for me it did. *#0011# in the dialer, menu, click on wifi then power saver off, turn it back on the same way
Sent from my SAMSUNG-SGH-I747 using xda premium

is gps part of the problem ??
hi guys looking for some help here with the people that are having problems with their wifi ..i am having the same problem getting pissed about it cutting out , this might be something ..run a speed test on wifi with gps on and then run it with gps off .. i have ran it about 20 times and the numbers always come up the same ..here are some pics...if the mods want to delete the same thread in the international thread please do..low scores =gps on ....high scores gps off.. also if you go to location services and check wireless networks u will see your speed go sporadic

Prolly the easiest explanation for the GPS and low WiFi speeds is that this is a low power lte chip. The GPS, WiFi, lte & bt are on a single chip and can only have a certain maximum amount of voltage going to the chip. This would be a Qualcomm issue not Samsung.

3G Drain on Jelly Bean

Are we likely to see a fix for this? We know there is a problem with 3G drinking battery but how likely are we to see a fix. Solutions like disable 3G aren't viable for a lot of people, so I just wondered what peoples thoughts on this were.

Try changing your modem. You should see a slight improvement in battery life, nothing major but still better than nothing.
Sent from my GT-I9000 using Tapatalk 2

Yeah a modem did help but I still had a big problem. Are we likely to see a fix, I remember this being a problem with ICS which is why I reverted back.

Its not the modem. My phone stock uses the XXKG3 modem, and i have been using that on ICS and now into JB. Jellybean definitely has worse battery concerning 3G / H for some reason. I just barely squeeze a day out of mine.

Yeah, I was struggling to get even a day. I tried almost all of the Jelly Bean ROMs and they all suffered from the same problem. I really wanted to stick with JB, especially C-ROM because it was like a dream to use but on a good day I'd get about 7 or 8 hours maybe? I would always have to plug it in twice a day. Currently trying SauROM which is better but I'm starting to think that the best for battery life is genuinely a stock rom like JVS.

skezza said:
Yeah, I was struggling to get even a day. I tried almost all of the Jelly Bean ROMs and they all suffered from the same problem. I really wanted to stick with JB, especially C-ROM because it was like a dream to use but on a good day I'd get about 7 or 8 hours maybe? I would always have to plug it in twice a day. Currently trying SauROM which is better but I'm starting to think that the best for battery life is genuinely a stock rom like JVS.
Click to expand...
Click to collapse
with any rom I've got a day and 6 hours depends on usage

On Jelly Bean?

did you limited your speed to 3g or do you also use hsdpa? if you use hsdpa, give 3g a try i think the battery drain in 3g is a lot lower ... in my opinion if you are not downloading 3g is fast enough to browse or youtube.
for just instant messaging you can give 2g a try

2G isn't really usable on Three mobile.
I don't know how to limit to just 3G. But yes I normally use HSPDA. That said, we should be able to use it without draining our battery

I'm not getting any major battery drain here. I can last a full day on HSDPA and or WiFi.
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Really?

skezza said:
Really?
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Click to collapse
Yup
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if you will buy a strong battery 1800-1900 mAh, you will see the different

Yeah, that's the alternative. Bigger battery I guess.

skezza said:
2G isn't really usable on Three mobile.
I don't know how to limit to just 3G. But yes I normally use HSPDA. That said, we should be able to use it without draining our battery
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Click to collapse
You CAN limit to just 3G. You have to go to Advanced Settings or Galaxy S Settings (depends on a ROM) and go to HSDPA and put it to UMTS mode only. It'll switch it to 3G and will consume less battery
Sent from my GT-I9000

Helloworld294 said:
You CAN limit to just 3G. You have to go to Advanced Settings or Galaxy S Settings (depends on a ROM) and go to HSDPA and put it to UMTS mode only. It'll switch it to 3G and will consume less battery
Sent from my GT-I9000
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in my opinion, thats the point, go to settings/advanced/RADIO in your case hsdpa + hsupa should be ticket, simply tick umts an you should notice, the changing radio icon in the status bar (no longer h, but 3g).
your 3g and hspa power consumption depends really strong from the signal strenght and in your phone is connected constantly or changes often. bad reception causes a large waist of battery power.

My guess is you have Google Now / Maps running in background which always uses your data.

darristan said:
My guess is you have Google Now / Maps running in background which always uses your data.
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On slim 2.9, I found that removing G now, and turning off all location tracking increased battery life. Now I can get a day and about an hour/90mins of screen on time with data/wifi only on when using it. I suppose after more than 2 years of use on the one battery charging every day or more, there's only so much one can expect from a device and battery.

But isn't it recognized that this is a problem? The 3G Bug? Nothing to do with Google Now etc

theskymoves said:
Now I can get a day and about an hour/90mins of screen on time with data/wifi only on when using it. I suppose after more than 2 years of use on the one battery charging every day or more, there's only so much one can expect from a device and battery.
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in my opinion thats not enough, do you mean 24 hours or 16 hours? could be a little more with 90 mins of screen time, but you shouldnt need more.
inverted apps can by the way help too, avoid white and light colours as background