Title says it all.
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Sure does not.
Sent from my ADR6400L using XDA App
Not even comparable... data takes up tons of battery
Sent from my Inspire 4G using XDA Premium App
If it's constantly in a loop of trying, unsuccessfully, to connect to a wireless network, I could see it increasing obviously, but in a normal connected state, as the others say, no way as much as mobile.
alright awesome ill keep using wifi
Scott_S said:
If it's constantly in a loop of trying, unsuccessfully, to connect to a wireless network, I could see it increasing obviously, but in a normal connected state, as the others say, no way as much as mobile.
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Click to collapse
Scott is right. If you don't have wifi connected it will constantly search for it causing battery drain. If you leave and don't plan on being on wifi I would shut it off so that your phone isn't constantly searching for a network. There are some battery settings in the wifi menu that can help with that though just not very much.
P.S. oops edited sorry Scott lol
Carlrobling said:
...Mud is right...
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Click to collapse
I'll take that as a complement.
I disagree, every phone i have seen uses significantly more battery having wifi turned on, I definately notice it on mine, and im talking about being connected to a wifi the entire time. My battery life with wifi on has always been **** compared to it being turned off, Iphone's all of them including 4, droid x, vibrant, captivate, inspire all the same result with wifi enabled.
Do a expierment charge phone to 100% before going to bed, lets say 10 pm to 6 am check battery power lvl, next night enable wifi, I am absolutely certain that u will have a much larger drain.
as for does it drain more while in use than 3g or 4g is another issue, some say it uses less than mobile network to transfer data because a mobile tower can be a few miles away while the router is no more than 200 feet. I personally think wifi still uses more battery, however i do use wifi when available to keep my data usage down. if u disabled 3g altogether then maybe. but with both on u are powering another radio.
jc2470 said:
I disagree, every phone i have seen uses significantly more battery having wifi turned on, I definately notice it on mine, and im talking about being connected to a wifi the entire time. My battery life with wifi on has always been **** compared to it being turned off, Iphone's all of them including 4, droid x, vibrant, captivate, inspire all the same result with wifi enabled.
Do a expierment charge phone to 100% before going to bed, lets say 10 pm to 6 am check battery power lvl, next night enable wifi, I am absolutely certain that u will have a much larger drain.
as for does it drain more while in use than 3g or 4g is another issue, some say it uses less than mobile network to transfer data because a mobile tower can be a few miles away while the router is no more than 200 feet. I personally think wifi still uses more battery, however i do use wifi when available to keep my data usage down. if u disabled 3g altogether then maybe. but with both on u are powering another radio.
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Click to collapse
If you're saying that having WiFi on uses more battery than having WiFi off, which is how I read the first part of your post, I'd have to say you absolutely correct.
I think the question was whether WiFi used more battery than mobile data.
Mobile data uses more battery because its constantly trying to look for a better connection. E/3G/4G/ETC...
Sent from my T-Mobile G2 using XDA App
according to alot of other post about this same issue say wifi uses more battery either way because your 3g /4g radio is still on when using wifi
Both right
If you have WiFi always on, constantly polling for it, when not connected, you will use >battery. If you are connected to WiFi, and thus not polling all the time, <battery usage.
I use Llama to disable my WiFi when I am out not using GPS. It knows I leave home or work based on location as tringulated by the cell towers, thus GPS doesn't have to be on. Your phone is always polling for towers anyway, even with data shut off, so this does not use any battery to speak of. There are a lot of towers here in my basic hood, so Llama seems to identified that I leave home from 100-1000 meters, depending which direction I go.
You will use less battery if you shut off WiFi polling while you have no chance to connect to Wifi, that is for sure!
I use Llama to shut off and on all sorts of stuff based on location or a set of conditions. It is all logic based: If condition A exists, perform B toggle. Works great for me in an area with lots of towers so location at home vs. work vs. out is determined rather easily and accurately in my experience.
Edit: other conditions available include days of the week, time of day, headset or bluetooth enabled, etc.
Wifi definitively uses less battery than 3g from all the tests I've done and common experiences around the forum. Its not even close.
Can you change the wifi interval in the build.prop file to have it search after a longer delay? I know on mine it is set for 15 (seconds)?
Sent from my Desire HD using XDA Premium App
Related
So, it seems the default policy for wifi on this device is never to disconnect itself to save power. The Vibrant defaulted to whenever the screen was off. That makes the default wifi policy between these two devices vastly different. In fact, there isn't even an option on this phone to disconnect from wifi when the screen is shut down. I wonder how this will affect battery life. I may think twice about enabling wifi.
The first thing I did after connecting it to my wifi was go to the wifi advanced settings and set the sleep policy to never. I'm glad it was already off by default. It shows that someone at HTC paid attention to that small detail and how it affected battery life. It greatly helps your battery life in my experience (with the Vibrant), since it's not constantly connecting and disconnecting from wifi which apparently uses more power.
Aspeds2989 said:
The first thing I did after connecting it to my wifi was go to the wifi advanced settings and set the sleep policy to never. I'm glad it was already off by default. It shows that someone at HTC paid attention to that small detail and how it affected battery life. It greatly helps your battery life in my experience (with the Vibrant), since it's not constantly connecting and disconnecting from wifi which apparently uses more power.
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Click to collapse
Agree 100%.
Sent from my HTC Glacier using XDA App
Aspeds2989 said:
The first thing I did after connecting it to my wifi was go to the wifi advanced settings and set the sleep policy to never. I'm glad it was already off by default. It shows that someone at HTC paid attention to that small detail and how it affected battery life. It greatly helps your battery life in my experience (with the Vibrant), since it's not constantly connecting and disconnecting from wifi which apparently uses more power.
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Click to collapse
Really? How would that *improve* battery life? I would have it to *detract* from battery life. If I'm at home basking in my wireless network, why would I rather have the connection permanent than to have it disconnected when the screen shuts off as it does by default with the Vibrant? If what you say is true, then setting the timeout from the 15 minutes timeout, as I have it now, to full time connection (never timeouts), will actually save on battery? To me, that flies in the face of reason, but then again, stranger things I've come across.
Just hoping for a reply to the above, and perhaps someone can explain why having wifi never time-out even when the screen is off can lead to better battery life?
think about it. having to connect and reconnect everytime you turn on your screen is bound to eat up. if your screen is off its not sucking in massive amounts of data so the battery drain is at a min
Lockeskidney said:
think about it. having to connect and reconnect everytime you turn on your screen is bound to eat up. if your screen is off its not sucking in massive amounts of data so the battery drain is at a min
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Click to collapse
Well, it's certainly not intuitive, and I am thinking about it, hence the post. In order to maintain an active wifi connection, there has to be continual pinging back and forth even with no active data connections from the device. Now, we all know that there *is* a lot of data being exchanged when the screen is off - whether it be syncing accounts, retrieving news items, emails, etc. This would all be taking place over a wifi connection by default. It is also my understanding that using your wifi radio consumes more power than your UMTS radio does. However, I'm not entirely sure of that last point.
Isn't it far more intuitive to believe (whether factual or not) that having the wifi radio powered on unnecessarily while in your pocket would consume more power than having it turn off? Even the seasoned users over in the Vibrant forums all recommend setting the wifi to turn off when the screen shuts off, which is a setting not available on the MT4G.
I'd like to believe that how HTC sets the default wifi behavior conserves power, but it sort of flies in the face of reason. I'm also of the belief that the device is set by default the way it is so that callers who use Wifi Calling can always be reached while at home on their wifi network. But, having such a wifi connection setting is actually eating up your battery life if you don't need wifi calling.
Wifi used less power that edge/g3/4g. Having it constantly on wifi with improve your battery life just because when wifi is enabled it shuts off cellular data.
option94 said:
Wifi used less power that edge/g3/4g. Having it constantly on wifi with improve your battery life just because when wifi is enabled it shuts off cellular data.
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Click to collapse
Ah, OK, well there you have it. Someone ought to tell those folks over the in the Vibrant forums then. Thanks...
floepie said:
Ah, OK, well there you have it. Someone ought to tell those folks over the in the Vibrant forums then. Thanks...
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Click to collapse
I have. I have a vibrant. Ordered the mytouch last night.
Also, can't have WiFi sleeping... otherwise WiFi calling won't work...
Sent from my HTC Glacier using XDA App
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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Click to collapse
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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Click to collapse
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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Click to collapse
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
can i run both wifi and 4g at the same time and will it drain my battery faster
randy6470 said:
can i run both wifi and 4g at the same time and will it drain my battery faster
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Click to collapse
No...so No
SENT FROM THE DOG POUND
Well, yes and no.
You can run the LTE chip set while you have Wifi enabled. However the wifi will take precedence over LTE, so you will be using wifi for data. The LTE will be connected in background, allowing you to receive MMS automatically and quickly connect to 4G after you turn wifi off. It will drain your battery faster but it won't make your interwebs faster.
Sent from my SCH-I510 using xda premium
I did not know that ..
Learned something new
Thanks ...
SENT FROM THE DOG POUND
kvswim said:
Well, yes and no.
You can run the LTE chip set while you have Wifi enabled. However the wifi will take precedence over LTE, so you will be using wifi for data. The LTE will be connected in background, allowing you to receive MMS automatically and quickly connect to 4G after you turn wifi off. It will drain your battery faster but it won't make your interwebs faster.
Sent from my SCH-I510 using xda premium
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Click to collapse
just to elaborate further - leaving wifi on without a connection is the big drainer. leaving 4G on while connected to wifi does not (but I'll be testing some experiments on this theory today).
wifi
the reason i ask is i use a app called timeriffic and can set wifi on and off at differant times but if i turn wifi off i have to turn 4g on manually
was hoping to leave 4g on so when wifi is not connect my 4g is
randy6470 said:
the reason i ask is i use a app called timeriffic and can set wifi on and off at differant times but if i turn wifi off i have to turn 4g on manually
was hoping to leave 4g on so when wifi is not connect my 4g is
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Click to collapse
i leave both on all day - but I also set my wifi scan to 1800 (once every 30 minutes). this has almost no impact on my battery life. also, each time I enter an area with a known connection, it connects rather quickly.
update to this, when leaving on both WIFI and 4G (while maintaining a WIFI connection), my phone drains at about 3% per hour in an idle state. Last night, I turned off mobile data, and my battery drained about 1% per hour. thus, I'm curious to see why previously my phone was still using the mobile data when there was a wifi connection.....
It isn't"using" it per se, but it is holding the connection open and dormant so it can establish a connection quickly on need. With LTE, you're dealing with a separate radio from voice, so if it dropped the connection entirely, it would have to open the radio link before it could get data flowing, which can take several seconds or more. It's convenience over battery life.
thanks for all the great info guy i will just leave both on and see what battery life is :fingers-crossed:
It's kind of like having a hybrid car in hybrid mode it uses just electricity (wifi) but the gas is still idling (4g) but if you were to use only electricity you would have lost no gas i.e. better mileage i.e. better battery life.
Will the phone have a longer battery life if the cell modem is set to 3g vs lte?
Sent from my Nexus 5 using xda app-developers app
Bump
Sent from my Nexus 5 using xda app-developers app
Yes, in my experience with the S4 it's a pretty big difference UNLESS you get a very strong LTE signal. I'm on tmobile and now have the N5 and use the 3G setting which is HSPA/+ Plenty fast for me for what I do. When I want some extra speed I'll kick on the LTE
Does anyone have a more detailed answer for this? I just got this phone yesterday so I haven't been able to find out myself yet, just with 5hour battery life from 100% to 4% on what will only be half of its normal day I'm looking for anything to help right now till I get a battery case. This phone is one of only two to have a LTE radio that is supposed to use 30% less power than usual so I'm wondering if that makes it as efficient if not more than 3G for idle in your pocket to light stuff like FlipBoard.
it would depend on the quality of the data connection. im in brooklyn nyc, and use lte on my nexus 5 exclusively, used to use it on my nexus 4 as well. with 3g(hspa+), on both my n5 and n4, i average about 4-4.5 hours screen on time. when using lte, i average about 5-6 hours screen on time on both my nexus 5 and 4. after noticing this difference, i use exclusively lte on both my devices, as i average an hour more screen on time when using exclusively lte.
herqulees said:
Does anyone have a more detailed answer for this? I just got this phone yesterday so I haven't been able to find out myself yet, just with 5hour battery life from 100% to 4% on what will only be half of its normal day I'm looking for anything to help right now till I get a battery case. This phone is one of only two to have a LTE radio that is supposed to use 30% less power than usual so I'm wondering if that makes it as efficient if not more than 3G for idle in your pocket to light stuff like FlipBoard.
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Click to collapse
Serious battery drain can have many reasons. One is having LTE on, syncing on(if you just booted it up, and input your Google account and let all your apps sync and download, its gonna drain your battery fast the first time), having locations on and wifi enabled. If you are in an area with poor reception, your phone will drain more trying to find connection.
Sent from a potato
simms22 said:
it would depend on the quality of the data connection. im in brooklyn nyc, and use lte on my nexus 5 exclusively, used to use it on my nexus 4 as well. with 3g(hspa+), on both my n5 and n4, i average about 4-4.5 hours screen on time. when using lte, i average about 5-6 hours screen on time on both my nexus 5 and 4. after noticing this difference, i use exclusively lte on both my devices, as i average an hour more screen on time when using exclusively lte.
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Click to collapse
Thanks for the information. That's what I was wondering but I couldn't find anyone that had already tested this with these new radios. If I get the time this weekend maybe I'll do my own test in detail to compare LTE to 3G. Am thinking of using a TV episode on Netflix and see which makes the battery drop faster over the 30 or so minutes.
Slightly off topic, does anyone's WiFi show as always on in the battery monitor even if its been off? Still trying to figure out my battery drain issue, if it even is an issue with just me, I bought this phone knowing it had a small battery.
herqulees said:
Thanks for the information. That's what I was wondering but I couldn't find anyone that had already tested this with these new radios. If I get the time this weekend maybe I'll do my own test in detail to compare LTE to 3G. Am thinking of using a TV episode on Netflix and see which makes the battery drop faster over the 30 or so minutes.
Slightly off topic, does anyone's WiFi show as always on in the battery monitor even if its been off? Still trying to figure out my battery drain issue, if it even is an issue with just me, I bought this phone knowing it had a small battery.
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Click to collapse
go to the main phone settings, wifi, 3 dots on the bottom right, advanced, then disable scanning always available..
ill be interested in seeing your results
simms22 said:
go to the main phone settings, wifi, 3 dots on the bottom right, advanced, then disable scanning always available..
ill be interested in seeing your results
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Click to collapse
Seems that's a whole other debate on weather leaving that on or turning it off helps battery life. Apparently if you turn it off then apps that want your location will turn the GPS on and waste battery (looking at you Facebook...), but if you leave it on the phone just tells the app your location from WiFi networks around you.
One thing I didn't think about is I had added my work WiFi yesterday but it wouldn't connect to it, wouldn't tell me why but I'm assuming it's because of bad signal as I'm a valet outside and the WiFi is from a bar across the street so I forgot about it but WiFi was left on with that network saved, my Nexus 7 can connect to it on most days and any laptop has no issues but with this being a phone I guess it doesn't have a big enough antenna. So I'm wondering if now that I deleted that WiFi network, and I always have my phone set to not notify me of public networks, if my battery won't die so fast today.
And now I'm just rambling but I just looked at my screenshot I took yesterday of battery use before plugging in at 4% and WiFi isn't even being shown on top six things that used the battery, lowest one being shown is a Chrome process using 3%.
EDIT: Well off to work now with my phone 100% charged, will have screen 100% (am outside in the sun), BT off, WiFi on (disconnected, no saved networks nearby, open network notifications off, always on during sleep, scanning always available, avoid poor connections, and WiFi optimization), LTE on/connected, NFC off. So lets see how things go. It will have tons of screen on time as all I do at work is read through FlipBoard, then if I run out of things on there I move to FB. Lets see how this goes...
http://www.qualcomm.com/media/docum...envelope-tracking-technology-3g4g-lte-devices
Nexus 5 has it and its doing its job saving battery
Sorry for digging up such an old thread, but with LTE my Nexus 6P, it switches between HSPA and 3G. When turned to 3G, nothing changes. Would that mean I would save battery?
Sent from my Nexus 6P using Tapatalk
Hi,
I am trying to get a clear idea on the battery consumption of N5 on Wifi, LTE and E. If the purpose is to be battery friendly, which one (LTE, Wifi, Edge) should I left my phone on most of the time?
Thank you,
Well id say not WiFi! I use Wi-Fi at home and battery life is OK, it actually depends on how much you use it. I'm usually on my tablet at home and on the road my n5. Idk what E is but I'm thinking it's edge so that's probably better than LTE battery wise.
Sent from my Nexus 7 using xda app-developers app
stagius24 said:
Hi,
I am trying to get a clear idea on the battery consumption of N5 on Wifi, LTE and E. If the purpose is to be battery friendly, which one (LTE, Wifi, Edge) should I left my phone on most of the time?
Thank you,
Click to expand...
Click to collapse
Wi-Fi is by far, the most battery friendly connection because the device only has to transmit and receive from a very short distance. Mobile data signals have to travel to the cell tower so more power is used the farther away you are from it. Less bars, more power used to communicate with the tower. LTE is best because you get that transmission completed very, very fast. HSDPA is good as well. Edge connection is very slow and makes the device hang waiting on the package to be sent and received, thus using more power in the long run. I usually set my phone to edge when I'm not going to be really using it.
Hope that helps.
Sent from my Nexus 5 using XDA Premium 4 mobile app
You certainly want to be using WiFi at home. I tried going data only for a couple days because it's unlimited and the battery drain especially while idle was much higher than using WiFi. This is with full signal 90% of the time.
WiFi is your friend for extended battery life. Mobile data - whether it's LTE, 3G/HSPA+ or good old Edge/2G will vary in power but it's pinging the towers for signal & cycling, so it will use more data - that is, all other things equal in terms of settings including the newer/est KitKat features.
Wifi whenever you can use it.
As far as cellular, as long as you have a decent signal, faster is always better (so the modem can download what it needs and turn back off). So use LTE if you're going to be using any data. Knock it down to edge (or off entirely) if you don't want to use data at all, or just for the occassional notification.
So Wifi is clearly the best. So when my phone is idle for a long time, let say at night, should I leave it under Edge or Wifi?
I am writing a tasker profile, so I just try to see which one is better in term of battery.
stagius24 said:
So Wifi is clearly the best. So when my phone is idle for a long time, let say at night, should I leave it under Edge or Wifi?
I am writing a tasker profile, so I just try to see which one is better in term of battery.
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Click to collapse
Well you can always put it on airplane mode/turn off the mobile radio and switch on Wi-Fi after to just have Wi-Fi data. The catch is, you will not be receiving any calls or SMS/MMS while you have the mobile radio shut off... unless you're using a VOIP service.