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From a battery perspective, should I use wifi? Most of the time i'm at home or at work where I have wifi. I also have good lte coverage at both. Speed aside, will I save battery by not using wifi or not?
You'll definitely save battery by using wifi when you can connect. I love the speeds over lte, but it is definitely a hog...
i also had boost of battery using WIFI
Using unlimited data plan makes me to consider using 4g, but I found that Wifi consumes much less battery.
Use wifi. The battery savings are huge.
yes i cant stress enough, wifi saves enormous amounts of battery so use it when ever possible. the difference is like night and day.
Compared to 3G
I've been leaving my wifi off since I have unlimited data and the 3G is pretty fast in my area, no 4G yet.
I've had pretty good battery life lately using only 3G, I'll have to do a few tests and see which one and I'm a fairly heavy user I'm approaching 4GB this month and none of that is tethering
3G or Wifi
Tested watching a streaming video of 22 mins
on 3G I lost 13%
on wifi I lost 8%
Wifi wins, of course standby is probably different, if 3G vs wifi loses this badly I'd have to imagine LTE vs Wifi is a slaughter battery wise
Actually I found something interesting...
For some reason, even when I am home using Wifi, the battery drains faster than I thought. Where I live is like a strange signal spot. If I turn off my WiFi I can see my TBolt constantly switching between LTE and 3G, sometimes it stucks on 1xRTT for a while then goes right back to switching between connections. If I am at work (downtown LA) where the LTE is pretty well covered, I still use WiFi at the office, the battery BARELY drain at ALL.
My theory is that even when WiFi is active, the phone somehow STILL does the LTE/EvDO switching on the background does draining the battery.
If somehow the devs or VZW can tell the phone to STICK to EvDO/1xRTT instead of going back and forth with the LTE while WiFi data is on, it'll solve the problem.
Also just FYI, I have the latest radio and BMAF 1.5 remixed.
SteveDusa said:
Actually I found something interesting...
For some reason, even when I am home using Wifi, the battery drains faster than I thought. Where I live is like a strange signal spot. If I turn off my WiFi I can see my TBolt constantly switching between LTE and 3G, sometimes it stucks on 1xRTT for a while then goes right back to switching between connections. If I am at work (downtown LA) where the LTE is pretty well covered, I still use WiFi at the office, the battery BARELY drain at ALL.
My theory is that even when WiFi is active, the phone somehow STILL does the LTE/EvDO switching on the background does draining the battery.
If somehow the devs or VZW can tell the phone to STICK to EvDO/1xRTT instead of going back and forth with the LTE while WiFi data is on, it'll solve the problem.
Also just FYI, I have the latest radio and BMAF 1.5 remixed.
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pretty much correct. at least on the gsm side, when i connect to wifi at home, i can no longer see if the phone is on 3G or EDGE. but it definitely switches back and forth to those networks, while staying on wifi, you just dont see the icon switching, but its definitely happening. i dont see why cdma and 1x would be any different.
if this is the case then why don't you just turn data off when you are on wifi.
^_^_^'s tbolt
EEdaesung said:
if this is the case then why don't you just turn data off when you are on wifi.
^_^_^'s tbolt
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You are absolutly right! How come I never thought of that. Will do that when I get home tonight.
Thanks for the tip!
Sent from my ADR6400L using XDA App
Better yet get juice defender and automate it . Its very good app. Right now it says I'm almost adding fifty percent on to my battery.
I seem to be bucking the trend here, but LTE is working better for me than wifi. I usually have a good signal, so that's part of it.
The other part is that my wifi may be eating more juice than normal because the TB and my router may not be playing nice together. Ever since I added the TB to the network, I've had to reboot the router every coupla days. Before the TB, it was solid weeks on end.
Has anyone who is still having trouble on with batter on wifi set their wifi sleep policy to "Never" sleep? Mine is set to this and if I am home most of the day I will lose very little battery through out the day.
I believe by default the wifi is set to turn off after a period of time or when the screen is off so during this time I believe you are actually reverting back to using the vzw network. To turn wifi to always on go to settings>wireless>wifi settings>hit menu>advanced. The sleep policy is at the top, change sleep policy to never. This my reduce battery while not connected to wifi so I always use the power control widget to turn my wifi off completely while I am away from the house.
shovelheadhd said:
Has anyone who is still having trouble on with batter on wifi set their wifi sleep policy to "Never" sleep? Mine is set to this and if I am home most of the day I will lose very little battery through out the day.
I believe by default the wifi is set to turn off after a period of time or when the screen is off so during this time I believe you are actually reverting back to using the vzw network. To turn wifi to always on go to settings>wireless>wifi settings>hit menu>advanced. The sleep policy is at the top, change sleep policy to never. This my reduce battery while not connected to wifi so I always use the power control widget to turn my wifi off completely while I am away from the house.
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Oh yeah this is very important, set wifi sleep policy to never greatly increases battery life. Otherwise it switches back to 3g when screen goes off and drains way more battery. This is very important to set this otherwise you wont see the increase.
Is strongly recommend switching to cdma only if yore gonna use WiFi and plan on saving your battery. Otherwise what's the point. I personally don't even bother using WiFi just use LTE only mode. I'm getting better speeds than most WiFi connections using my LTE.
Sent from my ADR6400L using Tapatalk
I'm on the EagleBlood Rom and currently in Singapore. Becsause I'm not using T-Mobiles expensive service and WLAN is here everywhere I have used the phone with WLAN + GPS only (Airplane mode + manual turned on WLAN + GPS). I used Locus Pro extensivly to navigate through the city and record my track. Battery after first day 8:00AM til 9:00PM was 79%. Second day is 55%.
Therefore the Cell Standby is really the issue here I would asume. But hack what do I have a cell phone for if I can't turn on the radio???
Battery really sucks otherwise. When I go to work at 07:30am and come home at 4:30PM I can put the phone on the charger, even though I barly used it.
I'm in the states, this phone lasts from about 7:30 AM until 8:00 PM with no problem, regular use, 4G all day. I disabled the Wifi which helped a lot.
Wifi uses less battery due to not having to poll the network to renew the connection. Wifi calling uses even less battery because now you have no connection to the network and it can keep a static connection to the wifi network. No need to renew that connection so it just sits there and does nothing.
I've tested and confirmed this on more than one phone.
And of course the radio is using battery. It's second only to the display in battery use. Like you said, what good is a cell phone without having the radio enabled?
iamlilysdad said:
Wifi uses less battery due to not having to poll the network to renew the connection. Wifi calling uses even less battery because now you have no connection to the network and it can keep a static connection to the wifi network. No need to renew that connection so it just sits there and does nothing.
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This all true. Display and 3G/4G radio are the killers.
Unless you have wifi on and aren't connected to a network. Then your phone is polling for wifi connections in addition to 4G
Yay! Yet another battery thread that I get to comment on!
i use wifi/wifi-calling over 95% of the time and my battery rocks! The moment I turn it off... bam.... I get crappy life on a batter. the difference is from around 35hr and drops to around 20. Then if i had moderate to heavy use on it, I'm sure I'd be getting the 8hrs everyone is complaining about.
I like cheese
hire4blood said:
I'm on the EagleBlood Rom and currently in Singapore. Becsause I'm not using T-Mobiles expensive service and WLAN is here everywhere I have used the phone with WLAN + GPS only (Airplane mode + manual turned on WLAN + GPS). I used Locus Pro extensivly to navigate through the city and record my track. Battery after first day 8:00AM til 9:00PM was 79%. Second day is 55%.
Therefore the Cell Standby is really the issue here I would asume. But hack what do I have a cell phone for if I can't turn on the radio???
Battery really sucks otherwise. When I go to work at 07:30am and come home at 4:30PM I can put the phone on the charger, even though I barly used it.
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I'm going to Hong Kong this Sunday, then will be in Singapore by the end of next Wednesday. I'm thinking to buy a local sim and use 2g only with manual WLAN, GPS off.
Agreed. I'm running CM7 #9. Took the phone off the charger at 8am. Checked my push exchange, twitter, and facebook updates. Went into work where we have no service. I have WiFi turned on for data.
I still have the cellular radio on, btw. At 3pm I have 88%.
CM7 has a WiFi bug which the WiFi won't stay on (goes to sleep with the screen off). But still pretty good.
it has been proved that 4g kills battery faster then 3g and 2g. http://blog.lifehacker.com/5741627/why-you-might-want-to-wait-for-a-4g-phone until there is a way for 4g radios to manage data more efficiently 4g is gonna kill you battery.
I'm using Eagle Blood 1.03 and my battery life is awesome right now. I think at this point, I could do a couple days before running out. I am just speculating right now, but I will try to leave off the charger tonight to see what I can get out of it.
cervantesjc said:
it has been proved that 4g kills battery faster then 3g and 2g. http://blog.lifehacker.com/5741627/why-you-might-want-to-wait-for-a-4g-phone until there is a way for 4g radios to manage data more efficiently 4g is gonna kill you battery.
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If you saying only 4G I cannot share the expirience with you. I even turned of data completly, while I was still in the US and still got bad battery life with ONLY the radio turned on (WLAN + Data + GPS turned off)
jdaclutch said:
I'm going to Hong Kong this Sunday, then will be in Singapore by the end of next Wednesday. I'm thinking to buy a local sim and use 2g only with manual WLAN, GPS off.
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Hong Kong Airport has free WLAN. Singapore has free wirless LAN called [email protected] through the whole downtown area. But there is a catch you have to have a Singapore Mobile number to register. They will send you the UserID and Password via text message. Lucky me I have a friend here sharing his user ID with me ... Therefore no need for the Radio to be turned on at all. And like I said the battery now last forever...
hire4blood said:
If you saying only 4G I cannot share the expirience with you. I even turned of data completly, while I was still in the US and still got bad battery life with ONLY the radio turned on (WLAN + Data + GPS turned off)
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Ok let me see if i understand (not trying to be a **** here), if all of the phone functions are turned off, what were you doing?, playing games?, watching videos?, i don't know, because to me it sounds like you phone was idle.
One more example that 4g kills battery is the thunderbolt, if you think that the G2x kills battery you should use that phone and comeback to the G2x, even HTC is selling bigger batteries for thunderbolt because customers are *****ing about the battery life.
You should try and use 2g only and see if this helps you battery life a little, i guess im just lucky, i have no screen bleed, no reboots and battery life for me is awesome, whit and without 4g.
cervantesjc said:
Ok let me see if i understand (not trying to be a **** here), if all of the phone functions are turned off, what were you doing?, playing games?, watching videos?, i don't know, because to me it sounds like you phone was idle.
One more example that 4g kills battery is the thunderbolt, if you think that the G2x kills battery you should use that phone and comeback to the G2x, even HTC is selling bigger batteries for thunderbolt because customers are *****ing about the battery life.
You should try and use 2g only and see if this helps you battery life a little, i guess im just lucky, i have no screen bleed, no reboots and battery life for me is awesome, whit and without 4g.
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Dude all the functions are turned on except the radio. I use the phone in airplane mode with WLAN + GPS enabled. I use GPS apps to track my way to Singapore. In downtown they have free WLAN everywhere. Phone last for 2 days this way, but makes no sence of course having a phone without a radio...
Oh and I use Sipdroid with Sipgate to receive and do free phone calls
cervantesjc said:
it has been proved that 4g kills battery faster then 3g and 2g. http://blog.lifehacker.com/5741627/why-you-might-want-to-wait-for-a-4g-phone until there is a way for 4g radios to manage data more efficiently 4g is gonna kill you battery.
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Click to collapse
Just making sure here, but you know that T-Mobile's 4G is still using the same existing 3G connections, thus not requiring it to run on a different band, right? HSPA/HSPA+ connections share the same bands, and thus the "4G" connection is running through the same radio without affecting battery life. WiMAX and LTE operate differently and both run seperate from the EVDO that Verizon and Sprint use for their 3G.
That being said, a radio, regardless, will always drain the battery faster than anything, which is why Wifi Calling is so effective in keeping high battery life.
The other HSPA+ enabled phones on T-Mobile are getting fantastic battery life, as long as you aren't constantly using the displays.
I am leaning to believe that's a major reason why everyone's phones are dying so fast. They've got a new toy so they're always playing with it and killing it quickly. I've done that with every new phone I've gotten. My G1, the Cliq, the myTouch Slide, and now this. Give it a few days and when you're not turning the screen on every five seconds to just flick around the menus, and you'll see your life improve.
Yesterday, for example, I ran my phone off of charge from 11 AM EST until 6 AM EST (6 AM, Monday Morning). This was with moderate use.
Its not just that we're playing with our new toys. This phone most definitely drains battery like its going out of style. I had to drive 90 minutes to the client I was coming to work with today. I unplugged my phone when I left my hotel room (and it was at 100%) and when I got to the office, 2hours and 15 minutes later, having never turned my phone on since I was driving the whole time, my phone was at 82%. That's really bad for a phone idling. I think there's a radio bug or its polling too often because if I let JuiceDefender work, then in the same period of time this evening I was at 94% battery. That's a big difference.
hire4blood said:
Hong Kong Airport has free WLAN. Singapore has free wirless LAN called [email protected] through the whole downtown area. But there is a catch you have to have a Singapore Mobile number to register. They will send you the UserID and Password via text message. Lucky me I have a friend here sharing his user ID with me ... Therefore no need for the Radio to be turned on at all. And like I said the battery now last forever...
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I know HK airport has free WLAN, but places like starbucks/Mcd only offer 30 mins- 2 hours of free WLAN a day.I will be in HK for a month(after I got back from Singapore), so I might need to purchase a pre-paid internet plan..I will be in Singapore for a week, so hopefully they will have unlimited free WLAN there...
IT'S NOT 4G THAT'S KILLING BATTERY. As was stated above it uses the existing 3G network for faster data speeds. Phones like the Thunderbolt and EVO (and anything else that connects to WIMAX or LTE) need a completely separate radio (and thus controller) to connect to 4G.
HSPA+ is just really fast 3G so the existing SOC's that have support on-die for T-Mobile 3G frequencies just have to have a slightly updated version of the hardware (to support either class 10 or class 14 HSPA+).
This would be a perfect example as to why T-Mobile and AT&T shouldn't be able to market HSPA+ as 4G. It confuses people and makes them think that battery life will suck because of it like it does on Sprint and Verizon. When SOC's come out that have on die support for LTE and WIMAX (I think I heard 2012) then battery life for those phones won't suck anymore.
xenoletum said:
Just making sure here, but you know that T-Mobile's 4G is still using the same existing 3G connections, thus not requiring it to run on a different band, right? HSPA/HSPA+ connections share the same bands, and thus the "4G" connection is running through the same radio without affecting battery life. WiMAX and LTE operate differently and both run seperate from the EVDO that Verizon and Sprint use for their 3G.
That being said, a radio, regardless, will always drain the battery faster than anything, which is why Wifi Calling is so effective in keeping high battery life.
The other HSPA+ enabled phones on T-Mobile are getting fantastic battery life, as long as you aren't constantly using the displays.
I am leaning to believe that's a major reason why everyone's phones are dying so fast. They've got a new toy so they're always playing with it and killing it quickly. I've done that with every new phone I've gotten. My G1, the Cliq, the myTouch Slide, and now this. Give it a few days and when you're not turning the screen on every five seconds to just flick around the menus, and you'll see your life improve.
Yesterday, for example, I ran my phone off of charge from 11 AM EST until 6 AM EST (6 AM, Monday Morning). This was with moderate use.
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The antena-radio, is using more battery, just because is handling data at a higher rate.
Just like I said before, until there is a way or update to the radio to handle data more efficiently, 4g radio is gonna keep draining battery.
And yes hspa+ and wimax are similar yet incompatible technologies, but the way they handle data take a big chunk out of you battery.
And is a fact that radio is draining most of the battery, and until we get a radio update, battery is gonna drain fast.
Sent from my LG-P999 using XDA App
im sure a lot of people already know this but i wanted to share with maybe some of the newer less experienced users..
if you switch your phone to wifi, or 1x or even 3g.. you will drain far much less of your battery as opposed to 4g.. i took my phone off charge this morning at 9am and right now im at 8% battery life, and i've been using it pretty frequently all day.
for those of you dont know how to switch, get LTE on/off app
CMDA only is 1x
EvDO only is 3g
CMDA + LTE/EvDoa auto is 4g unless it's not present
just a helpful hint! no need to keep 4g on if your phone is chillin in your pocket!
Hey guys,
Just had a question out of curiosity. I've already had to concede defeat to the fact that if I want my battery life to be usable on my T-Mobile LG G2x, I'll have to have 4G either turned off or at least downgraded to T-Mobile's EDGE network. The downside to this approach is that all incoming calls have to be directed to my phone as anyone trying to call my Google Voice number won't be able to reach me with my network down or too weak.
Now here's my question. For saving battery life, do I save a lot more power by allowing Juice Defender (JD) to turn off my network while my phone's asleep, or do I only use slightly more power by having 2G toggled on using Toggle 2G/3G?
Personally, I've never been happy with Juice Defender or Green Power. I've always felt like I got better battery if I just managed everything myself, plus I didn't have to worry about push notifications like Google Voice. I finally just decided to manually turn off all auto-sync when I was away from Wifi, and be sure that all apps that do auto-sync were properly set in their own respective settings.
spackmanbr said:
Personally, I've never been happy with Juice Defender or Green Power. I've always felt like I got better battery if I just managed everything myself, plus I didn't have to worry about push notifications like Google Voice. I finally just decided to manually turn off all auto-sync when I was away from Wifi, and be sure that all apps that do auto-sync were properly set in their own respective settings.
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That makes sense. I've been gradually doing that myself, turning off GPS and autosync when I need either.
How's your battery life? Are you on a flashed mod?
Running Deck's on my Evo 4g for a while now. It's an AOSP rom, and I get awesome battery life with it. I can easily get through the while day with heavy use, and even longer it I'm careful with my batter like we talked about. I don't think I could ever go back to using a Sense rom.
OK, so my wife and I both have GS3's through T-Mobile and our batteries last very long. I'm a heavy user and get a fully day while my wife is a light user and easily get's two days. My Mom on the other hand has her GS3 through Verizon and her battery is dying in roughly half a day. She is not a heavy user at all. In fact, her old Droid 2 would last longer than her GS3 which really has her frustrated.
I think it may be due to the fact she doesn't get a good 4G signal at work and at home. In fact, she gets 1 bar at work if she's lucky. She also said the phone is constantly bouncing back and forth between 3G and 4G while at work. She took it to Verizon today and they swapped SIM cards to be sure that wasn't the problem. Obviously that didn't work because I'm posting here. I will see her on Thursday and she want's me to look at her phone.
Do you guy's think this is most likely the reason as to why her battery is draining so fast? Also, if it is. Would there be a way I can show her how to disable 4G so her battery lasts longer?
It's most likely 3G and 4G switching back and forth or a rogue app. For to turn off the 4G it can't be done without rooting I'm pretty sure.
No, it's because you have task running. I had the same thing happen to me. If you exit an application by pressing home, the program will continue to run in the background. I had gallery take up 38% of my battery life. If you press the back button, it will FC the application.
Good bye HTC Rezound, hello Galaxy S3!
jrwingate6 said:
OK, so my wife and I both have GS3's through T-Mobile and our batteries last very long. I'm a heavy user and get a fully day while my wife is a light user and easily get's two days. My Mom on the other hand has her GS3 through Verizon and her battery is dying in roughly half a day. She is not a heavy user at all. In fact, her old Droid 2 would last longer than her GS3 which really has her frustrated.
I think it may be due to the fact she doesn't get a good 4G signal at work and at home. In fact, she gets 1 bar at work if she's lucky. She also said the phone is constantly bouncing back and forth between 3G and 4G while at work. She took it to Verizon today and they swapped SIM cards to be sure that wasn't the problem. Obviously that didn't work because I'm posting here. I will see her on Thursday and she want's me to look at her phone.
Do you guy's think this is most likely the reason as to why her battery is draining so fast? Also, if it is. Would there be a way I can show her how to disable 4G so her battery lasts longer?
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I'm on verizon as well and I find that my battery dies extremely fast. Full charge in the morning and by bedtime its just about dead, that's with moderate use. Some things that I have found to help is I generally keep bluetooth, and gps off unless I need either. I keep power saving mode on, and really minimized what Sync's through my accounts.
It's not exactly the answer you were looking for but it should help you until a more long term solution can be figured out.
Does anyone know how to turn 4G off?
Sent from my SGH-T999 using xda premium
Low tower signal will kill the battery very fast. Frustratingly fast. I have Verizon GS3, have very low signal at work, and I burn 8% battery per hour when phone is idle. With almost no use, my battery is down to 30% by time I go home.
At home I have good tower signal and my battery drops very slow in idle, maybe 1% per hour. At both work and home I have WiFi connected and set to keep WiFi on during sleep always. Therefore I don't think it's data traffic / sync causing the issue. Instead its hyperactive radio hardware or firmware killing itself as it constantly finds/loses tower connection. The only thing I've been able to find to reduce the drain is going into airplane mode... which is obviously a terrible option.
Hope Samsung can improve this self devouring nature in the future!
jrwingate6 said:
Does anyone know how to turn 4G off?
Sent from my SGH-T999 using xda premium
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go to the playstore and download "phone info" open it and go to device information
Swith the " lte/cdma/evdo" into cdma auto (PRL)
I also turn off 4g at work due to weak signal
VERIZON GALAXY S 3
I believe its a signal search at where she spends most of her time. At my work the signal is very bad and the phone goes from 100% to 20% in 10 hours without even touching the phone. Now I turn on airplane mode and it never drops the battery.
She can disable the data and find out how much that would save her
First make sure it's not a rogue app by going into Settings -> Battery, your top 2 battery usages should be Screen and Cell Standby. As long as you don't have some random app eating away at your battery then it's definitely signal strength related. Does she have Wi-Fi available at work? If so make sure she connects to it. I have a Verizon S3 and the battery life on this phone is better than any Android phone I've ever owned (and I've had a lot). I leave GPS and Bluetooth on all day and can easily get a full day with mid to heavy usage. The biggest thing would be to get her on Wi-Fi if available. This will stop the phone from constantly trying to poll data off a poor signal and significantly increase battery life. If no Wi-Fi available, then the above post would come into play, Phone Info app and switch into cdma to keep it locked into 3g will help, but only if there's a decent 3g signal. If the 3g signal is weak also, then you're not going to help anything, and she will just need to remember to turn data sync off while she's at work.
Sent from my SCH-I535 using Tapatalk 2
Try switching batteries to see if she has a defective battery. If thats not the case, then make Verizon give her a replacement S3.
Add me to the list of people who think its the signal search in low service areas.. I disabled 4G with the Phone Info app and my phone lasted way longer than before..
Since you pointed out she has a low signal, I wouldn't be surprised if that's the culprit..
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Pagaldesi4life said:
Try switching batteries to see if she has a defective battery. If thats not the case, then make Verizon give her a replacement S3.
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This is what I did, kept the old battery too...then they swapped me for a w S3. My battery is doing much better now.
The5Venomz said:
This is what I did, kept the old battery too...then they swapped me for a w S3. My battery is doing much better now.
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Ahhh so it wasn't the battery itself?
When you got a replacement S3, did you go back to the same store where you had originally purchased them from or tried a different store?
I disabled 4G today at work with my stinky cell signal and my battery nose dived like usual. Therefore, if you have no signal, 3G/4G doesn't seem to matter. The radio hardware will still destroy itself happily.
Anyone know of a widget my Mom could use to disable data completely while she is at work?
jrwingate6 said:
Anyone know of a widget my Mom could use to disable data completely while she is at work?
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Pull the task drawer down and uncheck mobile data. Why do you need a widget?
You might have a system process called "gsiff_daemon" draining the battery. I have that problem and others have reported that process has been draining their battery as well. Or it could be other have mentioned already, signal switching, rogue programs, etc.
Today at work I ran with mobile data off. I still had a really bad battery drain. Therefore the voice 3 g radio must be responsible. Not much we can do about that unless a new firmware comes out.
Another battery tip...
Scrappy1 said:
Today at work I ran with mobile data off. I still had a really bad battery drain. Therefore the voice 3 g radio must be responsible. Not much we can do about that unless a new firmware comes out.
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There's also an option in the settings>developer options to restrict how many processes are running in the background, and to kill an app after leaving it. The only problem I've noticed with the second option is that the fb app won't allow you to post a status, I think because it causes it to start a new activity, which kills the main fb activity when you leave it. But limiting the background stuff seems to have saved some more juice on top of only using 3g.
getheart mcliar said:
There's also an option in the settings>developer options to restrict how many processes are running in the background, and to kill an app after leaving it. The only problem I've noticed with the second option is that the fb app won't allow you to post a status, I think because it causes it to start a new activity, which kills the main fb activity when you leave it. But limiting the background stuff seems to have saved some more juice on top of only using 3g.
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Naw man, at home I have good cell signal and have almost no idle drain. At work I have terrible signal and it drains like nuts. It's not an issue with apps, processes, services, etc.