I wonder how much better my battery performance would be if signal didn't sick so bad at the office.
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Sent from my Galaxy Nexus
lilfleck said:
I wonder how much better my battery performance would be if signal didn't sick so bad at the office.
Click to expand...
Click to collapse
A lot.
I usually lose 3-4% over night (9h) with perfect reception. Last x-mas I was at my gf's home on the countryside with barely 1 bar of reception and ~50% no reception: Lost 30% over night. Both times connected to WiFi.
I feel your pain... though mine is not as nearly as bad as yours.
Do you have the option to connect to wifi at work? That should help if it's available (and/or allowed).
bowsersoulstar said:
I feel your pain... though mine is not as nearly as bad as yours.
Do you have the option to connect to wifi at work? That should help if it's available (and/or allowed).
Click to expand...
Click to collapse
I'm not the OP, but having WIFI doesn't help/hurt my battery life at all when the phone is idle. I also have bad reception at work (and at home), but not nearly as bad as the OP. Even with my poor reception at home, I only lose about 1% an hour at night with about -90dbm of service.
lilfleck said:
I wonder how much better my battery performance would be if signal didn't sick so bad at the office.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Not really all the phones fault. Your office is the main cause. My office gets horrible reception. I keep a charger at my desk...
Sent from my Gummy Nexus
Simple, but have you tried just disabling 4G while at work? I get 4G at work, but barely. This made the difference for me.
Battery life with great signal and hardly any congestion is almost comparable to wifi. During Xmas break there were hardly any people downtown Houston and I got almost 5 hours display twice with ~10% left still.
Sent from my Nexus in Texas.
tighr said:
I'm not the OP, but having WIFI doesn't help/hurt my battery life at all when the phone is idle. I also have bad reception at work (and at home), but not nearly as bad as the OP. Even with my poor reception at home, I only lose about 1% an hour at night with about -90dbm of service.
Click to expand...
Click to collapse
In that context, you're correct. -90dbm isn't the best of signal service but it's not equivalent to having no service period (per OP's 60% missing signal) But I'll disagree on the front that it does not help battery life if he's missing signal 60% of the time.
Case in point, I get absolutely no data reception at my mother's house. Phone itself is constantly searching for service which has been a huge battery drain; idle or not.
That 60% he's not having any signal, phone (and consequently apps that are also trying to utilize data) do contribute to a big battery drain.
Being on WiFi remedies that a bit.
lilfleck said:
I wonder how much better my battery performance would be if signal didn't sick so bad at the office.
Sent from my Galaxy Nexus
Click to expand...
Click to collapse
Your phone is likely defective and you should exchange it.
I used to have high % of time without signal like that... then I exchanged my GN for a new one and it's got signal close 100% of the time.
Do you drop connection when trying to use data?
pdanders said:
Your phone is likely defective and you should exchange it.
I used to have high % of time without signal like that... then I exchanged my GN for a new one and it's got signal close 100% of the time.
Do you drop connection when trying to use data?
Click to expand...
Click to collapse
Rather than going to such a drastic measure of returning the phone, why not simply flash a new radio?
tighr said:
Rather than going to such a drastic measure of returning the phone, why not simply flash a new radio?
Click to expand...
Click to collapse
I tried that with my first phone... It made no difference.
The lady I talked to at verizon support was pretty open that there was a batch of bad GNs out there. Definitely no harm in trying a new radio.. but don't wait too long if it continues to perform like that.
The difference between my old and new phones are night and day. Old one would drop connection every 20 minutes (and usually more often than that). The new one hasn't dropped connection one time in over a week
Get the app called No Bars that puts your phone into airplane mode after how ever many minutes you want after the phone doesn't have signal. The app also has a setting to to automatically keep checking for a signal after how ever long you want it to. I used this on my EVO4G with Sprint but I don't think I need it any more with verizon so I don't know if it works on our phones.
It's definitely because of my office. However, I had a droid x that had better/stronger signal than my GN. I just flashed the 4.0.4 radio that came w/ Codename's latest ROM. Bars appear to be one notch higher on 3g, (0 bars to 1 bar). But the signal strength is exactly the same.
This is my first full day on 4.0.4 radios and my battery is fantastic. I was dropping 2%/hr. I seriously was wowed by how awesome its been today. Although, every once and a while, my phone does that.
Very pleased. The big drop was grooveshark steaming on 4G.
Sent from my Galaxy Nexus
jst07 said:
Simple, but have you tried just disabling 4G while at work? I get 4G at work, but barely. This made the difference for me.
Click to expand...
Click to collapse
+1 for turning off 4G when you are out of range. Also I enabled the mobile data limit and forced several applications to restrict background data. For example, google+ was a major hog that was constantly using the radio. Also check applications that "check in" periodicaly, and increase their check in time. Words with Friends checks in every 5mins by default.
Valynor said:
A lot.
I usually lose 3-4% over night (9h) with perfect reception. Last x-mas I was at my gf's home on the countryside with barely 1 bar of reception and ~50% no reception: Lost 30% over night. Both times connected to WiFi.
Click to expand...
Click to collapse
I assume you are on GSM version
my LTE nexus over night would lose about 20% nothing turned on, even easy battery saver turned on for intelligent battery saving and this same thing...
Related
Anyone else notice a much worse signal on the GNex than other VZW phones in the same location. I swapped from a GSM Gnex and i gotta say, im not impressed.
mastibeta said:
Anyone else notice a much worse signal on the GNex than other VZW phones in the same location. I swapped from a GSM Gnex and i gotta say, im not impressed.
Click to expand...
Click to collapse
From what people have said of Samsung, they have bad CDMA radios in general while Moto has the best.
Ya I keep getting random 4g drops in my house, I usually fluctuate between 2 bars of 4g and 2 bars of 3g...
Sent from my Galaxy Nexus using XDA App
I am. Compared to the Rezound I had for a couple weeks the dBm is -100 to -140 where the Rezound was -80.
Last night it kept dropping to 3G and would not get 4G back unless I rebooted.
Speedtest was about half what it normally was with the Rezound on 4G
This morning the -dBm is over -100 but the speedtest is about to where it was normally so I don't know.
I travel for work so I'm going to give it week and see how to behaves as I move around.
I really like this phone but I need it to be a phone first and if it drops calls or the 4G is this bad it's going to be a deal breaker.
I just did another speed test at -108 dBm and it's over 20MB down. I was getting 4MB down last night and the signal was all ranging all over the place while I was staying in the same spot.
I have to imagine the VZW network was getting pounded pretty hard last night with new adopters and phones being activated. I'd say give it a few days and check back into it
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Bad signal but still getting good speeds....
Sent from my Galaxy Nexus using XDA App
I am experiencing this also coming from a Thunderbolt. Granted the Thunderbolt had flashed radio/Kernal/Rom's. Would that even matter? In this case will an updated radio provide a stronger signal or just increased reliability from being dropped? Maybe both? Idk. Anyone?
These are all in the exact same spot ranging from -100 to -140dBm
Glad I'm not the only one! The Rezound had way better connectivity and reception! Samsung sux in this dept. Ima give it a few days. Off topic here but where's the smart dialing?? I can't believe it didnt make it to ics!! Heh.
Sent from my Galaxy Nexus using Tapatalk
I honestly think the phone is just reading your signal wrong. TBolt had this issue also and a modem fixed it somewhat.
psufan5 said:
I honestly think the phone is just reading your signal wrong. TBolt had this issue also and a modem fixed it somewhat.
Click to expand...
Click to collapse
I drop signal at random though.
Would that cause it to drop down to 3G?
I have same signal i used to have on my rezound, i still get almost same speeds around 28 up and 18-20 down here in Minneapolis. rezound used to get 32 down and around 20 up, but i am thinking since verizon network was pounded yesterday so there will be some impact on speeds
Whatever new phone that comes out, you can always count on a bad signal thread.
I haven't noticed a difference in signal, but I do think it has better sound quality than my Droid Incredible.
Edit: I just did a speed test (3g) and it was very choppy and not great. I live across the street from a cell tower, so that is not good.
The Moto RAZR I returned yesterday to get this Samsung had much better reception.
I should have remembered that the Koreans can't engineer a good antenna. I'm very unhappy right now.
tsk138 said:
Would that cause it to drop down to 3G?
Click to expand...
Click to collapse
Yeah, ill be sitting with 2 bars of 4g...then randomly goto 2 bars of 3g...cant get 4g back without cycling airplane mode.
shizat63 said:
The Moto RAZR I returned yesterday to get this Samsung had much better reception.
I should have remembered that the Koreans can't engineer a good antenna. I'm very unhappy right now.
Click to expand...
Click to collapse
The GSM model holds signal great...had hspa+ all the time.
mastibeta said:
Yeah, ill be sitting with 2 bars of 4g...then randomly goto 2 bars of 3g...cant get 4g back without cycling airplane mode.
Click to expand...
Click to collapse
I get that same issue, maybe THIS is why VZW delayed it?
:O
mastibeta said:
The GSM model holds signal great...had hspa+ all the time.
Click to expand...
Click to collapse
i beg to differ
Maybe your coverage area? I am in Tampa...in a building, in my office, i get 5-6 megs down and 2-3 up...with my LTE GNex, i cant even hold a 4g signal, and when i do its 5 megs each way. Nothing earth shattering....but on top of it, that drops to 3g and stays there. The GSM, always had a connection.
Woke up late today because phone died. Does WiFi really kill the battery this bad or did I get the grey triangle of death? I have signal where the phone was laying. I'm currently rocking AOKP and Frank (Turtle) kernel.
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looks like you totally lost signal and the radio kept trying to find one
Wifi does NOT kill the battery that bad. And the GN in my experience and others too I see has excellent idle life. Something is wrong.
I have WiFi on 24/7 and have no issues. The Verizon phones are meant to have battery issues aren't they (as in ICS not liking them)?
I received this phone through Amazon on Monday. I can recall about 3 different times where I would be using the phone and have great signal and then all of a sudden I would lose internet connection. It would take a minute or so but it would come back. 2 of those occasions happened before I even rooted the phone. Yesterday, it happened when I was on a call. On all occasions I had at least 2 bars if not more when it happened.
Seems to be when the drop happens I also lose voice. Does anyone else have similar problems?
That's due to no cellular reception, not WiFi. The red under, "Mobile Network Signal" represents time where your phone had zero reception.... not to mention that your stats told you that you didn't have signal 93% of the time.
KWKSLVR said:
That's due to no cellular reception, not WiFi. The red under, "Mobile Network Signal" represents time where your phone had zero reception.... not to mention that your stats told you that you didn't have signal 93% of the time.
Click to expand...
Click to collapse
This, exactly. Almost the entire time you were on battery the phone was searching for a cell signal for voice and SMS, killing your battery.
Zabalba said:
I received this phone through Amazon on Monday. I can recall about 3 different times where I would be using the phone and have great signal and then all of a sudden I would lose internet connection. It would take a minute or so but it would come back. 2 of those occasions happened before I even rooted the phone. Yesterday, it happened when I was on a call. On all occasions I had at least 2 bars if not more when it happened.
Seems to be when the drop happens I also lose voice. Does anyone else have similar problems?
Click to expand...
Click to collapse
I have never had even a remotely similar experience, it seems that if you were in the same spot that entire time and that happened, the handset may be faulty and you will want to exchange it for a replacement.
mutelight said:
This, exactly. Almost the entire time you were on battery the phone was searching for a cell signal for voice and SMS, killing your battery.
Click to expand...
Click to collapse
Yep. Keep in mind that when your phone loses signal it will increase the power to the radio in an attempt to find a signal (since that's the primary purpose of a phone, or so I'm told). If you know you're in a spot with poor signal, put it in Airplane Mode to keep it from searching (and thus draining the battery).
As mutelight mentions, if your phone is going from good signal to none without moving, there's something else wrong. Trying different radio firmwares may help, or it could be a hardware issue.
KWKSLVR said:
That's due to no cellular reception, not WiFi. The red under, "Mobile Network Signal" represents time where your phone had zero reception.... not to mention that your stats told you that you didn't have signal 93% of the time.
Click to expand...
Click to collapse
What's interesting is I left it on my desk. I get good reception at my desk (get 4G there).
I have the problem that after almost every text message I receive, I lose all voice and data signal, but it comes back within 5-10 seconds later. Very annoying.
spencer88 said:
I have the problem that after almost every text message I receive, I lose all voice and data signal, but it comes back within 5-10 seconds later. Very annoying.
Click to expand...
Click to collapse
That is also not normal behavior. Are you running all stock? If so, definitely seek a replacement.
In those situations, put your phone in airplane mode and turn on wifi.
Sent from my Galaxy Nexus using Tapatalk
I just contacted Verizon and Amazon (I bought the phone from them).
Verizon had me pull out the LTE sim and reinsert it. The rep said she did something on her end to refresh my line. I've been around the block to know that means jack **** but we will see.
I spoke with Amazon it was reassuring. If I keep having issues with the signal they will overnight replacement phones. If I keep having an issue with them I can replace them for another phone.
I love this phone so far with the exception of the problem that was stated so far. I already bought all sorts of accessories for the phone. But in the event I have to move on from the GNEX, which phone would you guys recommend?
I like this phone too much to switch to another brand/phone.
I ended up asking Amazon for a replacement phone. Hopefully this new phone comes without issues.
Zabalba said:
I like this phone too much to switch to another brand/phone.
I ended up asking Amazon for a replacement phone. Hopefully this new phone comes without issues.
Click to expand...
Click to collapse
Good.
I couldn't come up with a phone I'd rather have than the GNex :-D
Just got the brand new replacements from Amazon. Same exact problem. After speaking to Verizon and Amazon, I'm going to replace the sim. If my problem does not resolve itself, looks like I'm going to AT&T for the Galaxy Note.
Wish me luck!
Zabalba said:
What's interesting is I left it on my desk. I get good reception at my desk (get 4G there).
Click to expand...
Click to collapse
it could be that you lost signal and the phone was unable to get it back for some reason even though you were in a good reception area. Some of the radios that i tried had problems going from edge to 3G and would either take too long or not be able to go back to 3g again. i would try flashing 4.0.3 or a different radio.
Conclusion to the story.
I ended up getting the sim cards replaced. Same issue. I was even able to show the rep. Looks like I'm going to end up getting the Galaxy Note.
Thanks to those who replied and read the thread.
Sorry Verizon LTE. It was nice while it lasted (or connected) ;_;
have you tried different roms/kernels ?
try to switch it off of 4g
it definitely seems to be a connection issue
I had this exact problem with my first Gnex. Left it unplugged on the nightstand and woke to a dead phone. Same battery profile: No mobile signal and a steep discharge graph. My wife's Gnex, 6 ft away in the same room, was just fine.
Verizon swapped me a new phone and I haven't seen that problem again. To be fair, I've only repeated the conditions a few times, so it's hardly conclusive.
Sent from my Galaxy Nexus using xda premium
My battery died in a few hrs today and the culprit seems to be 66% cell standby. I've never experienced this kind of drain before. I'm running the latest Franco Kernel and I'm wondering if anyone else is seeing this?
I just posted something exactly like this earlier in the day. Do you have google chrome and recently updated? I think when I just uninstalled it, it fixed my problem...
Sent from my GT-P7510 using xda premium
would be amazing if you actually posted a screenshot of your usage, with awake time, screen on time, and network state....
Leave your screen on all of the time. It will make the cell standby percentage go down .
On a serious note. what's the time without signal? Just press on cell standby and it will tell you the percentage I think. It sounds like you didn't have coverage and your phone was constantly trying to find it...which would kill your battery fairly fast and probably make your phone warm in my experience.
martonikaj said:
would be amazing if you actually posted a screenshot of your usage, with awake time, screen on time, and network state....
Click to expand...
Click to collapse
I've noticed that juice defender ultimate hasn't been running so maybe this has been a problem I didn't notice, I turned it off because I hate how long it takes to bring 4G back up...
phone has of course been on the charger since I was less than 10% but:
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What did your network level look like over that drain? It looks like you have bad signal, but it shouldn't effect it that much if you're on WiFi the whole time... as noted before, a radio constantly hunting for better 3G/4G signal can really drain the battery.
How much screen on time was that? Probably pretty low?
56% of the time you were without a signal? Where do you live? Alaska? On a serious note though...I'd recommend switching to 2g/3g or wifi when you're having trouble finding a signal.
martonikaj said:
What did your network level look like over that drain? It looks like you have bad signal, but it shouldn't effect it that much if you're on WiFi the whole time... as noted before, a radio constantly hunting for better 3G/4G signal can really drain the battery.
How much screen on time was that? Probably pretty low?
Click to expand...
Click to collapse
screen time was essentially zero, I took a nap and when I woke up phone was near death. :-/
anton2009 said:
56% of the time you were without a signal? Where do you live? Alaska? On a serious note though...I'd recommend switching to 2g/3g or wifi when you're having trouble finding a signal.
Click to expand...
Click to collapse
WOW yeah didn't even see that. There's the drain right there. Your phone is boosting power to the radio to try and get a signal and just obliterating the battery.
anton2009 said:
56% of the time you were without a signal? Where do you live? Alaska? On a serious note though...I'd recommend switching to 2g/3g or wifi when you're having trouble finding a signal.
Click to expand...
Click to collapse
At home, my signal is generally 2-3 bars 4G, maybe we're having tower issues in my area. This battery consumption is definitely not the norm for me. Kind of took me by surprise which is why I posted...
mwalt2 said:
Leave your screen on all of the time. It will make the cell standby percentage go down .
On a serious note. what's the time without signal? Just press on cell standby and it will tell you the percentage I think. It sounds like you didn't have coverage and your phone was constantly trying to find it...which would kill your battery fairly fast and probably make your phone warm in my experience.
Click to expand...
Click to collapse
So it is true that when your phone did not have network connection, it will constantly find coverage and thus account for the awake time in the battery state? Therefore eating up the battery life, even though the screen is off?
oblivionstalker said:
So it is true that when your phone did not have network connection, it will constantly find coverage and thus account for the awake time in the battery state? Therefore eating up the battery life, even though the screen is off?
Click to expand...
Click to collapse
Yes. This is true. The phone pushes more power to the radio also, which drains the battery.
Sent from my Galaxy Nexus using XDA
This is irritating me immensely...my Galaxy Nexus has yet to last me a full day on a charge. I bought a Hyperion 3800mah battery and I believe it really did extend my battery life. On Sunday, I was home all day and my phone was connected to wifi. I used it quite a bit and the thing had 80% when I went to bed.
Today and yesterday, going to school, my phone is just about dead when I get home, at 2:30. I did use my phone, but not heavy at all. Spent the most of the day in my pocket. I had nothing on both days. No bluetooth, GPS, I had sync off when I went to school today, then I turned it on around 1 o clock or so. I used full screen brightness when I was outside for a few minutes, otherwise it was on low. The thing is warm to the touch like its been running frantically. I'm lead to believe that its something to do with the LTE radio. But what??
Took some screen shots of my battery page, had 4% left.
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Please please please help me. I've read people getting 2 days on a charge with a 3800mah battery...I'm drooling for that ability.
Thanks!
It looks like your spending lots of time in area's with bad reception. I'm using the sedio 3800mah and I have no problem going several days on one charge. Only time it drops faster is when I have crappy reception and the radio's are pulling more juice. On heavy days I have wireless tether running all day, and a couple hours of games and still have 40+ percent at the end of the day.
there is also some crap app installed that keep ur phone awake..
ur phone should be awake only when the screen is on (or so)..
your high % of cell standby should give it away.
look at your signal the red is all the times with no signal meaning that whole time the phone is searching for signal. plus 49 %of screen on time that looks to be half of 7:49 so almost 4 hours of scren time is good just need to fix your signal problem plus draw something kills your battery as well
lordgodgeneral said:
It looks like your spending lots of time in area's with bad reception. I'm using the sedio 3800mah and I have no problem going several days on one charge. Only time it drops faster is when I have crappy reception and the radio's are pulling more juice. On heavy days I have wireless tether running all day, and a couple hours of games and still have 40+ percent at the end of the day.
Click to expand...
Click to collapse
+1 to signal causing drain
Sent from my ADR6425LVW using XDA
dco717 said:
plus 49 %of screen on time that looks to be half of 7:49 so almost 4 hours of scren time
Click to expand...
Click to collapse
is not like that..49 % is the power consumption of the screen in relation to the other things that drained the battery..with easy word, you cant know the screen on time if he doesn't say u
True...well he needs to do a factory reset and see if it helps
Sent from my Galaxy Nexus using XDA
Wow, poor to no reception, high awake times, high screen on times...it's a miracle your battery lasted as long as it did.
dco717 said:
True...well he needs to do a factory reset and see if it helps
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Factory reset doesn't help bad signal...lol.
Turn off LTE, bad signal will drain you fast but bad signal on LTE will drain you twice as fast.
Looks like you have a rogue app. See how much your phone is awake when the screen is off? That combined with bad signal=dead phone.
I see what you guys mean about awake mode. Yea my phone feels like a warm coal all day. I uninstalled "Words Free" because I've heard bad thing about battery, I stopped using the beautiful widgets weather app, stopped sync with soundcloud, and I got an airplane mode widget for the bad reception area. We'll see how long I can stretch my battery tomorrow.
I read up on how Light Flow light might drain the battery. The LED light has remained stuck on a lot, so I uninstalled it. I'll post a battery stat tomorrow night. Fingers crossed.
I can vouch for bad reception draining the battery.. that should clear up your problem.
Sent from my Galaxy Nexus using xda premium
I had the same problem but get this app called "2X Battery", my batter lasts the whole day now! Get the PRO version, its actually worth it and it works wonders!
I have the extended battery also
yep bad reception... once time i left my phone one in my bag while on an airplane... not in airplane mode or anything... battery went dead in about 2 hours due to no signal
Pretty sure the bigger problem is the phone waking up while the screen is off. You should run your phone for another day and look at the list of apps that are draining your battery.
A few good things to look for? Google + or other programs constantly checking for messages your location, or updates, e-mail being pushed to your phone automatically, Wifi on while in sleep, and widgets.
My battery is **** also on GSM version my galaxy s2 would have 2-3% drain per hour most time less Nexus seems to drain 2-3% in 15mins its terrible wish i never changed.
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I got this much today and I feel happy with it. I got up at 6, had school and text in crappy service for whiles at a time. I did charge It once but for like ten minutes. Stock everything, do I get good battery?
Sent from my Galaxy Nexus using Tapatalk 2
It is possible to get better battery performance than that, but as long as it's suitable for what you need it for, then that's the important thing.
If you're interested, there's always lots of information in threads about custom ROMs and custom kernels regarding the amount of battery people manage to wring out of their phones.
Could be improved. Have you checked your phone for wakelocks to see if there is any apps or services eating up unnecessary battery? Try flashing a kernel/ROM as well. Highly recommend Franco's kernel.
These are screens captured this evening. Using Franco's r121 kernel and stock ICS IMM76I on stock 1750mAH battery.
Thank you! Will try it. Can I just flash in recovery on completely stock rom? I want to make sure it's compatible
Sent from my Galaxy Nexus using Tapatalk 2
Look my...everything stock
But everything depends from ur use
Inviato dal mio Galaxy Nexus con Tapatalk 2
1hr 42 minz of screen on time isnt so hot. a 3hr average is considered decent
i wish i could get past 6hrs of battery life with playing music.. im thinking about buying a extended battery
and yes im using Franco m3, AOKP 34
The Nexus Project said:
1hr 42 minz of screen on time isnt so hot. a 3hr average is considered decent
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Seriously. His signal was pretty ****ty over the course of the battery though.
martonikaj said:
Seriously. His signal was pretty ****ty over the course of the battery though.
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on
Yeah everyone is comparing apples and oranges, Wifi and Wireless, LTE and GSM, etc..
Yes you will get almost 2 days of battery life if you are on a strong WiFi signal the majority of the time. If you understand wireless technology it all makes sense. Regardless of the signal wifi or network connection when the signal is weak the phone is using more power to keep the connection alive. In turns of power usage Wifi uses less power than 3G which uses less power than 4G. For LTE devices here usually how your battery life ranks 1 being the best.
1. WiFi signal 4-5 Bars
2. WiFi signal - 2 - 3 Bars
3. 3G Signal - 4-5 Bars
4. 4G Signal - 4-5 Bars
5. 3G Signal - 2-3 Bars
6. 4G Signal - 2-3 Bars
HeCareth said:
In turns of power usage Wifi uses less power than 3G which uses less power than 4G.
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I don't know yet about the Nexus specifically, but in most cases it's much easier on the battery to idle on UMTS than WiFi. However, since most of us have our phones in constant contact with the Googleplex, there's a fair amount of data transfer when the phone is otherwise idle. That muddies the waters quite a bit.
It also depends to a large degree on whether your AP can allow WiFi clients to sleep like they do on the cellular networks or not. I'm not positive about cdma2000, but in GSM and UMTS the phone spends most of its idle time with the radio off. It only has to wake up every 5-10 seconds to listen for pages from the network.
Some WiFi APs have working 802.11e WMM, but others are broken. Presumably anything modern is more likely to have working power save, but it's always been hit-or-miss for me despite the standard being some 7 years old now.
If there's a point to take from this, I guess it's that whether wifi or 3G drains your battery less isn't something you can make a blanket statement about, as with almost everything related to battery life.
HeCareth said:
In turns of power usage Wifi uses less power than 3G
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I don't believe that..
case0 said:
I don't believe that..
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You don't have to take my word for it..http://smallbusiness.chron.com/uses-battery-3g-wifi-27139.html
case0 said:
I don't believe that..
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Overall, WiFi uses less power than 3G/4G. WiFi uses more "idle" power keeping connected, but much much less "transmitting" power. It transmits for shorter periods of time (short active connection) and over a shorter distance (no power to boost signal), both reducing usage.
Even if it was break-even power wise, you'd rather be on WiFi to save data usage.