Sprint Automatic Connection - Sprint Samsung Galaxy S III

Is there any real benefits for having this on??? all it does it turn on my wifi all the time and drain my battery.
Thanks in advance

Maybe in an lte area, but it is awful otherwise. Number one battery drainer, and even when disabled will sometimes still run in the background
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Related

4g or 3g battery life

So, I read somewhere that 4g is more similar to wifi, indicating that 4g is better for the battery if you have good signal. But I notice the exact opposite, 4g kills my battery whereas 3g isn't SO bad. Can anyone confirm this?
sent from my touchwiz 4.5-ed epic
For me it's always been from best to worst
Wifi, 3g, 4g.
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I use 4G frequently while at work. I obviously don't use my phone as much while I'm at work as when I'm not, so it's tough for me to get a good comparison.
It does seem to me when downloading bigger items, like ROMs, 4G will take up more battery than 3G even though it will certainly take longer on 3G to accomplish the same thing.
And for what it's worth, I do get a good 4G signal while at work too, so it's not like it's bouncing back and forth between 3/4G.
From my own personal experience;
Wifi>3G>4G
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Wifi>3g>4g here as well
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jeffro18 said:
Wifi>3g>4g here as well
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Same... 4g def kills battery quicker
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Imho I think it is modem/kernel/ rom related. I certianly think there was a period that wifi was sucking the life from my phone and 4 g was sipping. Presently I think I am doing 3g>wifi>4G...but I have seen this flip arround on diferent versions.
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Eclair: wifi > 3g > 4g*
Froyo: 3g > wifi > 4g*
Gingerbread: 3g > wifi > 4g*
*Was only available when I traveled to a city with it. Closest was ~400+mi away. Lame, I know. Stupid Sprint.
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Thanks for all the replies (literally). I've seemed to notice exactly what your saying though, I was just wondering because I heard somewhere 4g drains less battery in high signal areas. I usually get 2/3 4g bars, so id say mine is ok, but it definitely drains faster than 3g
sent from my touchwiz 4.5-ed epic
It doesn't make much of a difference for me. Probably though because my school is so close to a 4G tower? I mean I can literally see it.
4G is a seperate radio so would require more power. 3G is tied to the CDMA radio. Wifi uses almost no power when connected. So I get days of standby on weekends at home on wifi.
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kennyglass123 said:
4G is a seperate radio so would require more power. 3G is tied to the CDMA radio. Wifi uses almost no power when connected. So I get days of standby on weekends at home on wifi.
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Funny, my device gets the opposite with 3g vs wifi. My sleep policy is set on 'never', but wifi has drained the hell out of my batter since Froyo. It's nearly as bad of a drain as 4g, when I was in a 4g area to test.
+1 and also since froyo. How I long for the wifi battery sipping days.
nikon120 said:
Funny, my device gets the opposite with 3g vs wifi. My sleep policy is set on 'never', but wifi has drained the hell out of my batter since Froyo. It's nearly as bad of a drain as 4g, when I was in a 4g area to test.
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4g spectrum runs at a higher frequency rate than 3g. Therefore, 4g will drain ur battery a lot faster, especially if u have weak or weaker signal strength. Wifi, is low aplitude frequency rate, meaning..it an open frequency , therefore, does not require much power for high speed. 3g is moderate frequency rate. Just to clearify..3g and 4g are cdma, depending on carrier. Support information regarding can be allocated at www.phonescoop.com
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androidmaster1 said:
4g spectrum runs at a higher frequency rate than 3g. Therefore, 4g will drain ur battery a lot faster, especially if u have weak or weaker signal strength. Wifi, is low aplitude frequency rate, meaning..it an open frequency , therefore, does not require much power for high speed. 3g is moderate frequency rate. Just to clearify..3g and 4g are cdma, depending on carrier. Support information regarding can be allocated at www.phonescoop.com
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I have no doubt you are technically accurate and it could be the implementation and how they are managed. If I take a full battery and leave one of these on at a tome...as of stock froyo (I think some roms may have had different results) and all gb 3g certianly is usong about half the battery being used as 4g and wifi consistantly uses more.
Sammy should talk to u guys n get theeir sheit fixed.
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Djinn23 said:
I have no doubt you are technically accurate and it could be the implementation and how they are managed. If I take a full battery and leave one of these on at a tome...as of stock froyo (I think some roms may have had different results) and all gb 3g certianly is usong about half the battery being used as 4g and wifi consistantly uses more.
Sammy should talk to u guys n get theeir sheit fixed.
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it also has to do with power time managment in the kernels. i discovered that between the different kernels i have tried and xda. you just have to play with the different roms and kernels and see which gives you better results.

Setting phone to use EDGE.

How do I do this?
If its possible. It would let me use data and limit the amount I use while at work lol
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settings/mobile networks/network mode/gsm only....
badaphooko01 said:
settings/mobile networks/network mode/gsm only....
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Considering youvr now become my personal hero of all time. I have another question. Is there a significant battery drain difference?
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wetrabbit444 said:
Considering youvr now become my personal hero of all time. I have another question. Is there a significant battery drain difference?
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While I am not sure directly how much impact there may be I would expect you to see a different, the "4g" (read: 3g enhanced) is a large drain on the battery.
Also the EDGE network is a lot more well distributed across the country which means your phone would potentially spend a lot less time searching for the proper signal. I notice at home my phone swap between the 4g and E icon for short periods at times, which means it's also draining battery swapping between signals.
Of course this isnt an issue at home since I just have wifi on, which also kills my data connection when wifi calling is enabled.
15 hours on 4G vs 40 hours on 2G for me
Nice.
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Question regarding leaving on CDMA/LTE vs. CDMA.

So, LTE is not in my area as of yet. Every once in a while, I travel to the city which has LTE. So my question, should I just turn it on when I know I'm going to be using it or can I just leave it on all the time? Will it drain my battery? Thanks!
I would just turn it on when u need it. I'm sure it draws battery cause it will constantly scan for lte
Sent from Galaxy SIII
Thanks, much appreciated!
It makes absolutely no difference which mode you have it set to unless you have LTE in your area. It will not drain any additional battery. There is one exception... If you have a Sprint Airrave (home signal booster for areas with poor service), you want to keep it on cdma mode. Cdma/lte mode when connected to the Airrave disrupts text messaging.
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mnhertz26 said:
It makes absolutely no difference which mode you have it set to unless you have LTE in your area. It will not drain any additional battery. There is one exception... If you have a Sprint Airrave (home signal booster for areas with poor service), you want to keep it on cdma mode. Cdma/lte mode when connected to the Airrave disrupts text messaging.
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Doesn't at all affect my airvana. When I 1st got this phone there was a provisioning issue that disrupted text messages only when connected through airave.
this message brought to you by my GalaxyS3 running Phantom's Blazer
http://google.about.com/od/socialtoolsfromgoogle/a/How-To-Turn-Off-4g-Android-4g.htm
One of many articles explaining that leaving lte on does drain battery because it searches for lte signal.
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---------- Post added at 02:09 AM ---------- Previous post was at 02:08 AM ----------
mnhertz26 said:
It makes absolutely no difference which mode you have it set to unless you have LTE in your area. It will not drain any additional battery. There is one exception... If you have a Sprint Airrave (home signal booster for areas with poor service), you want to keep it on cdma mode. Cdma/lte mode when connected to the Airrave disrupts text messaging.
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Wrong
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yeah, that makes no sense. a radio searching for a signal once a day is going to draw more power than a radio not searching at all. Now think about if you leave it on all the time. its going to be searching for a LTE signal at whatever interval that the LTEscan timeout and wakeup is set at.
so, short answer, if you are not in an LTE area, turn it off

WiFi draining my battery?

OK so here's the thing, I've noticed that when in at college (or school for some) my gnex is on standby most of the day with mobile data turned on even though its 2G area, now I manage to make it home with at least 80% and usually end up recharging it however the peculiar thing is that with WiFi on it drains about 1% per minute at least. Seriously its truly ridiculous, anybody else had this problem or have any ideas on what to do?
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Possibly a lot of traffic on your network? Lots of broadcasting happening causing wake locks. All I can think of.
Also what's your signal strength like? Both cellular and wifi.
Cellular wise its always full bars wherever I go and I turn off mobile data when I get home, WiFi wise I'm always on 2 bars in a 60mb connection.
Traffic isn't that high maybe one other person on the laptop...
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are you root ??
Divyesh42 said:
are you root ??
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Nope, 100% stock.
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Question. How to activate lte only?

With CM10.1?
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there is no such thing as LTE only, and i doubt it will exist until LTE coverage is more widespread. LTE also runs off CDMA, i don't know the technical information but i don't think it would save any power, compared to using CDMA only. if you want to run LTE just select CDMA / LTE and it will stay on LTE whenever LTE is avail.
if i was to turn my phone on LTE only and do my usual day of driving i would have no signal for 70% of the day, and that is driving around the GTA, which is canada's heaviest population density. so even if u happen to be somewhere where u usually have LTE, this is extremely rare that's why the mode isn't out yet.
cdma / lte priority goes as follow
4g lte - highest priority
4g - 2nd priority
3g - lowest priority
if you are looking to save battery and not performance, use 2g only for extreme battery saving, or CMDA only for moderate battery saving while still having good performance.
.... besides you couldn't make phone calls on lte kinda defeats the purpose of a phone.
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Thanks for your informative explanation.
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Swetnes said:
.... besides you couldn't make phone calls on lte kinda defeats the purpose of a phone.
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good point

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