wifi 4g - Verizon Droid Charge

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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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.

Related

use wifi or not?

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.
Click to expand...
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.
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Wifi drains more battery than mobile network?

Title says it all.
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Sure does not.
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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)?
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How to save juice when in and out of signal?

When I'm at work my phone goes in and out of signal a lot while in the office. When I go outside I've 4G and 3 bars. The temp of my battery has been at 118F before and the battery drains about 50% per half hour.
Are there any techniques or apps out there that will solve this? Airplane mode works best when in the office, but of course that sucks.
Thanks
Get juice defender from the market!
Sent from my Xoom using Tapatalk
Maybe this can help. Airplane mode
I live in NYC and am hitting up subways quite often. I've noticed a major decrease in battery life whenever getting out of the subway due to not having any signal underground. The phone is constantly searching for 4G and a Signal and it drains.
Everytime I hit up the subway I stick my phone in airplane mode since I know I won't get a signal anyway, and my battery doesn't drain a lick. Maybe this could help?
2x battery is great
Sent from my ADR6400L using Tapatalk
mbreezy said:
When I'm at work my phone goes in and out of signal a lot while in the office. When I go outside I've 4G and 3 bars. The temp of my battery has been at 118F before and the battery drains about 50% per half hour.
Are there any techniques or apps out there that will solve this? Airplane mode works best when in the office, but of course that sucks.
Thanks
Click to expand...
Click to collapse
is there a wifi network you can connect to at the office? I'm in a similar situation at my office, for whatever reason the connection to the mobile network is incredibly spotty and unreliable in most places in my building, so I just connect to wifi.
otherwise, have you tried just turning off the data connection, rather than putting it into airplane mode? you'd still be able to use your phone and sms/mms (in theory anyway, depending on signal strength) and you could just turn mobile data back on when you need it. going from full off to 4G mode has always been a lot faster on my phone than either airplane mode or forcing it to stick with 3G.
I agree with number5toad, sometimes forcing 3g isn't always easy with the phone. But 2x battery app really helps my battery life!
Sent from my ADR6400L using XDA App
If you are rooted, get SetCPU from here at XDAdev. You can set a profile so it will underclock your phone while the screen is off which in my experience, completely balances out the effects of the battery drain for searching for a signal. I know this doesn't exactly address your issue, but it will definitely help save battery.

WIFI vs LTE vs E

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.

Wifi ON. Data OFF?

Hey there.
I use tasker to turn mobile data off as soon as I connect to my Wifi. When I go out of range, it turns mobile data back on.
That works great, the thing is I just read that the OS automatically does that for you, so... Am I being redundant? Is my tasker profile useless?
Thanks!
well, if you are on wifi, you are not connected to mobile data, youre connected to wifi so mobile data has no way of flowing in and out of your phone until you connect to a mobile connection.
rwed said:
Hey there.
I use tasker to turn mobile data off as soon as I connect to my Wifi. When I go out of range, it turns mobile data back on.
That works great, the thing is I just read that the OS automatically does that for you, so... Am I being redundant? Is my tasker profile useless?
Thanks!
Click to expand...
Click to collapse
Keep Wifi ON and Mobile Data ON, when your phone is close to a known wifi it will use the wifi instead of data and when you leave the wifi range it will go back to data by itself.
OK, I should have probably added that the purpose of this Tasker profile is to save battery life. As far as I know, not having to be connected to 3G or 4G would consume less power. Right?
EDIT: I mainly ask this for scenarios of really low data coverage. At work I barely have 1 bar, and the radio keeps switching from 2G to 3G and 4G. I'd assume that does indeed consume a lot of power even though I am connected to a Wifi network.
simms22 said:
well, if you are on wifi, you are not connected to mobile data, youre connected to wifi so mobile data has no way of flowing in and out of your phone until you connect to a mobile connection.
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Click to collapse
Bumchakalaka said:
Keep Wifi ON and Mobile Data ON, when your phone is close to a known wifi it will use the wifi instead of data and when you leave the wifi range it will go back to data by itself.
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Click to collapse
rwed said:
OK, I should have probably added that the purpose of this Tasker profile is to save battery life. As far as I know, not having to be connected to 3G or 4G would consume less power. Right?
Click to expand...
Click to collapse
im on lte 100% of the time, and never ever use wifi, and i get 5-6h sot every battery cycle. really, youll get your best battery on the fastest, highest quality signal(data/phone) available for you to use, whichever type of signal it is.
rwed said:
OK, I should have probably added that the purpose of this Tasker profile is to save battery life. As far as I know, not having to be connected to 3G or 4G would consume less power. Right?
Click to expand...
Click to collapse
Well if you have Wifi toggled ON and DATA toggled ON too, the wifi would put the data on stand-by mode and when data come in it would put the wifi on stand-by(and you can also go to wifi settings>advanced>wifi optimization[helps with power saving] while wifi is on and running).
Sorry guys, I see I edited my post while you both were replying. See:
EDIT: I mainly ask this for scenarios of really low data coverage. At work I barely have 1 bar, and the radio keeps switching from 2G to 3G and 4G. I'd assume that does indeed consume a lot of power even though I am connected to a Wifi network.
So my point being, data might be put into stand by mode, but my guess is that the phone constantly switching radio modes and having to deal with low signals might consume more power than with data off. Don't you think?
Thanks!
simms22 said:
im on lte 100% of the time, and never ever use wifi, and i get 5-6h sot every battery cycle. really, youll get your best battery on the fastest, highest quality signal(data/phone) available for you to use, whichever type of signal it is.
Click to expand...
Click to collapse
Bumchakalaka said:
Well if you have Wifi toggled ON and DATA toggled ON too, the wifi would put the data on stand-by mode and when data come in it would put the wifi on stand-by(and you can also go to wifi settings>advanced>wifi optimization[helps with power saving] while wifi is on and running).
Click to expand...
Click to collapse
rwed said:
Sorry guys, I see I edited my post while you both were replying. See:
EDIT: I mainly ask this for scenarios of really low data coverage. At work I barely have 1 bar, and the radio keeps switching from 2G to 3G and 4G. I'd assume that does indeed consume a lot of power even though I am connected to a Wifi network.
So my point being, data might be put into stand by mode, but my guess is that the phone constantly switching radio modes and having to deal with low signals might consume more power than with data off. Don't you think?
Thanks!
Click to expand...
Click to collapse
if its constantly jumping to differing signal types, and quality is low when it is connected, then youd probably get better battery life with the data connection off.
simms22 said:
if its constantly jumping to differing signal types, and quality is low when it is connected, then youd probably get better battery life with the data connection off.
Click to expand...
Click to collapse
However, he's thinking that you need to turn off mobile data while WiFi is on. This isn't true, it turns off/goes into standby until you need it.
Sent from my Nexus 7 using Tapatalk
Where you can save a good chunk of battery is disabling WiFi while using data. You also need WiFi always scanning turned off for this to work.
As you have found out data is switched off automatically. The reason some people are doing that now is it might be a temporary fix for some WiFi connectivity issues.
Sent from my Nexus 5 using Tapatalk

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