Constant 4G and battery life - Samsung Galaxy Nexus

So, I'm fairly certain it's a well-established fact that the constant switching from 4G to 3G drains a lot of battery on our phones since 4G isn't a widespread service yet. I have also heard that 4G is a more efficient antenna and if you have a constant 4G connection, the battery life isn't impacted much. I was wondering how much of this is true- I live in Atlanta, which was one of the first cities to get Verizon's LTE service, and as a result, I have a sold 3-4 bar signal of 4G at all times. I go to school downtown, work in the metro area, and live in the metro area. Since I got the phone, I've just left it on CDMA, as the speeds are fine for me and I typically get 30 hours or so of battery life with data and sync on (and WiFi, when available). Would switching to 4G change that number drastically?
Thanks!
Also, a side question: I leave GPS turned on as that only polls when an application calls for it, but I've left Google's Location Services off. Is there a real need to leave that on? With GPS only, I tend to get an immediate reading with wonderful accuracy.

I'm calling bs. Please post a screenshot of your battery life of 30+ with gps and 3g all day.

rabaker07 said:
I'm calling bs. Please post a screenshot of your battery life of 30+ with gps and 3g all day.
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Click to collapse
I'd be happy to post a screenshot the next time I run my phone down. As I said, GPS doesn't drain your battery at all unless you're using Maps constantly, so that isn't really a major factor for me. Also, I DO have the extended battery.
Also, I can't help but note how this doesn't really relate to the content of the thread at all.

rabaker07 said:
I'm calling bs. Please post a screenshot of your battery life of 30+ with gps and 3g all day.
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Click to collapse
Not at all what the topic was about but it's easily possible. I've gotten 30 hours on 3G no problem. Right now I'm at 20% after 20 hours with moderately heavy usage. Close to 4 hours of screen on time.
As for the topic, best way to find out is to try it. Couldn't tell you for certain one way or the other.
Sent from my Galaxy Nexus using XDA App

hotleadsingerguy said:
Not at all what the topic was about but it's easily possible. I've gotten 30 hours on 3G no problem. Right now I'm at 20% after 20 hours with moderately heavy usage. Close to 4 hours of screen on time.
As for the topic, best way to find out is to try it. Couldn't tell you for certain one way or the other.
Sent from my Galaxy Nexus using XDA App
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Click to collapse
Right, I suppose that would be the easiest approach. I just fear starting my day out on 4G and then realizing that my battery is shot when I really need it. Though, I could always just turn data off if I see my battery draining super quick.

Related

[Q] 4G or WiFi drains more battery?

what wastes more energy? having 4g on or having wifi on? i read the other threads but it had to do with 3g.. they said 3g wastes more power. is this the case with 4g as well?
thanks!
WiFi drains more battery always
that's from personal observation on all the phones i've owned in the past to now
as soon as you use WiFi the battery drains like there's no tomorrow
however this phone seems to handle it quite well
Yeah, 4G is a big battery hog. Wifi doesn't drain as much so long as you are connected to the same one for a while.
EDIT: just saw AllGamer's reply. Wifi really drains that much? I remember seeing the Droid Razr review saying that 4G eats batteries for breakfast. I might be wrong then!
Sent from my SGH-T989D using xda premium
They both drain battery about the same in my opinion.
When ever I can I turn both of them off to save battery.
It's really easy with the toggles that a couple roms have.
This phone is a BEAST!
From my personal experience wifi doesn't drain as much as 4g.
Sent from my SGH-T989 using xda premium
WiFi is far more efficient than the cellular network, and any usage will count against your allocated full speed GB's.. not a good thing.
don't have a sgsII yet but my experience with my vibrant is that wifi if connected uses less battery than hspa. If I'm not connected to a wifi network it drains the battery looking for one.
Sent from my SGH-T959 using xda premium
heygrl said:
WiFi is far more efficient than the cellular network, and any usage will count against your allocated full speed GB's.. not a good thing.
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Click to collapse
Forgive my ignorance but how come the usage of Wifi will count against your allocated full speed? My personal experience has been different .
knut150 said:
Forgive my ignorance but how come the usage of Wifi will count against your allocated full speed? My personal experience has been different .
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Click to collapse
I meant not using it will count against your data allotment
lol so there's no unanimous answer. i guess i'll just try to experiment a little and see which one uses more. thanks everyone.
4G uses more battery than WiFi
Definitely 4G... I sit on wifi all day and do not use much battery at all.
skadude66 said:
Yeah, 4G is a big battery hog. Wifi doesn't drain as much so long as you are connected to the same one for a while.
EDIT: just saw AllGamer's reply. Wifi really drains that much? I remember seeing the Droid Razr review saying that 4G eats batteries for breakfast. I might be wrong then!
Click to expand...
Click to collapse
From what I understand, LTE is a bigger battery hog than HSPA+.
jasnmb said:
From what I understand, LTE is a bigger battery hog than HSPA+.
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Click to collapse
For sure. And after that I'd say HSPA+ > WiFi in terms of battery draining.
Wait, our phone runs off energy. Please tell me its kinetic?!
Sent from my Juggernaut SGSII or Galaxy Tab 10.1 now "In Paris"
bhowanidin said:
Wait, our phone runs off energy. Please tell me its kinetic?!
Sent from my Juggernaut SGSII or Galaxy Tab 10.1 now "In Paris"
Click to expand...
Click to collapse
Solar backpack maybe ?
ok guys lets keep this topic sane, yeah it's funny, but lets go back on topic
it's a very valid & informative question
my personal experience shows me WiFi is worst, but others here says 3G/4G is even worse, but from personal experience 3G/4G is less than WiFi
so even i find that contradiction very interesting
the thing that could make a difference is the signal strength, perhaps better 3G/4G reception requires less power to maintain the connection?
possibly the same reason why WiFi always seems to do worse for me, because all the Starbucks, Airport, Hotel, Library, and other coffe/restaurant places that offer WiFi it's horrible, very slow, and hard to maintain signal, probably because tooooooooo many people are hogging it or maybe just because too many devices are bumping each other off the Router/WiFi AP on those establishments
Whenever I use wifi I turn my data off and gst better battery that way. If you have a bad data signal or wifi it'll take more battery to try to keep a connection.
In my Bio class I have terrible data signal and my battery will drain really fast with heavy use but if I turn on my wifi and turn off the data my battery iis way better
Sent from my SGH-T989 using XDA App
So after doing testing of my own I have come to the conclusion that 4G drains more battery than wifi. With wifi I can get about 14 hrs, but with 4G I only get 6-8 hrs.
This phone is a BEAST!
AllGamer, makes sense. If you have slower networks, your screen will be on for longer as you wait inbetween pages and downloads. Fast downloads => less screen time.
My personal experience with wifi vs THREE-g is that wifi eats my battery quickly (on all previous phones and there have been many, including present BB Torch for work). An d 3G doesn't drain as quickly.
However I agree wifi seems pretty sippy and efficient on the SGH-T989. My battery is learning. I am now getting 1 day and 13 hours of discharge time. Very moderate use. 4G. So yes there well may be a difference between 3 and 4G.
I will test wifi-only as soon as I can in the next few days.
AllGamer said:
ok guys lets keep this topic sane, yeah it's funny, but lets go back on topic
it's a very valid & informative question
my personal experience shows me WiFi is worst, but others here says 3G/4G is even worse, but from personal experience 3G/4G is less than WiFi
so even i find that contradiction very interesting
the thing that could make a difference is the signal strength, perhaps better 3G/4G reception requires less power to maintain the connection?
possibly the same reason why WiFi always seems to do worse for me, because all the Starbucks, Airport, Hotel, Library, and other coffe/restaurant places that offer WiFi it's horrible, very slow, and hard to maintain signal, probably because tooooooooo many people are hogging it or maybe just because too many devices are bumping each other off the Router/WiFi AP on those establishments
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Click to collapse

Would this be considered good?

In your opinion, would this be considered good battery life?
2 days and 12 hours on battery with a total of almost 2 hours of screen on time.
Picture links attached.
http://img.tapatalk.com/b838cbf0-c7d0-a618.jpg
http://img.tapatalk.com/b838cbf0-c7ec-3191.jpg
http://img.tapatalk.com/b838cbf0-c7fa-2696.jpg
I think it's pretty subjective to be honest.
Are you able to get what you need to do on the phone done without having to worry about the battery?
If you mean in terms of comparison to others, then it is about average. I'd guess you're running a LTE Nexus - with the extra radio, you'll have worse battery life compared to GSM users. Some GSM users have reported 4+ hours of screen on time, which I would assume needs a few of the right tweaks here and there to achieve that. I doubt a LTE Nexus will be hitting those numbers though.
Well a phone like that and using it less than an hour a day for actual use defeats the purpose of having a smartphone.
So it's really impossible to say if it is considered 'good' battery life or not, since 99% of us use it frequently for e-mails, chat, browsing and gaming.
Krijs said:
I think it's pretty subjective to be honest.
Are you able to get what you need to do on the phone done without having to worry about the battery?
If you mean in terms of comparison to others, then it is about average. I'd guess you're running a LTE Nexus - with the extra radio, you'll have worse battery life compared to GSM users. Some GSM users have reported 4+ hours of screen on time, which I would assume needs a few of the right tweaks here and there to achieve that. I doubt a LTE Nexus will be hitting those numbers though.
Click to expand...
Click to collapse
I keep LTE disabled most of the time even though LTE is plentiful in my area. I get 250 kilobytes per second on Verizon's 3G 95% of the time and that's plenty for browsing webpages or streaming music.
Another thing I should mention is that I am on GummyNexus 0.7.0 with LeanKernel 1.7.1 and I wanted to test how long I could make the phone last, with light to very moderate usage while on Wi-Fi. Brightness was at 50%.
I have made it to 3 hours and 50 minutes of screen-on time before when I had brightness at 25% with LTE disabled and connected to 3G.
I am aware that LTE drains battery, and the only reason I'd need to use it is if I wanted to download a large file. I get anywhere between 10-to-20mbps download and 8-to-10mbps upload, which is faster than my aunt's AT&T HSPA+ connection. She has trouble hitting 6mbps download and 2mbps upload.
kristovaher said:
Well a phone like that and using it less than an hour a day for actual use defeats the purpose of having a smartphone.
So it's really impossible to say if it is considered 'good' battery life or not, since 99% of us use it frequently for e-mails, chat, browsing and gaming.
Click to expand...
Click to collapse
how he uses his phone is his thing.
to the OP:
did you get all the use out of it you wanted in a days time without having to charge it? if so, then you're good to go.

[Q] Constantly in a bad reception zone

When I'm at school (5 days a week) most of my classes are in a building where I do not get a lot of reception, aka, my battery gets killed by the phone to keep up the signal. I do get reception, around 1-2 bars, but that still drains the battery extremely fast. Is there any app or something that I can do to help reduce the amount of battery drain?
I don't want to put the phone into air plane mode because I can still send and receive text messages, but it's just very slow.
Have you tried putting it in cdma only mode?
Sent from my Galaxy Nexus using XDA
You could save a lot of battery life by either connecting to a wifi hotspot (if available) or by turning off background data. The problem your phones having is that it has to turn the gain way up on its cellular radio in order to transmit and receive data. By reducing the amount of background data usage (or off loading it to another network with better signal--i.e. wifi) you'll save a lot of juice.
If you can't do either, there are some things you can do with Tasker to reduce data usage to windows of time instead of always on. May be something to consider.
- chris
isinisterx said:
When I'm at school (5 days a week) most of my classes are in a building where I do not get a lot of reception, aka, my battery gets killed by the phone to keep up the signal. I do get reception, around 1-2 bars, but that still drains the battery extremely fast. Is there any app or something that I can do to help reduce the amount of battery drain?
I don't want to put the phone into air plane mode because I can still send and receive text messages, but it's just very slow.
Click to expand...
Click to collapse
Drop it into 2G only or connect to WiFi.
taappel said:
Have you tried putting it in cdma only mode?
Click to expand...
Click to collapse
He's in Canada, so using the GSM model.
Give juice defender a try. It used to almost double the battery life on my old X10 when I worked in a building that I could only get 1 bar at best.
Sent from my Galaxy Nexus using xda premium
GreatBigDog said:
Give juice defender a try. It used to almost double the battery life on my old X10 when I worked in a building that I could only get 1 bar at best.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
JD sucks on the Nexus, unless it has gotten an update since last month.. WiFi doesn't want to reconnect. I've seen others say the same thing.
WiredPirate said:
JD sucks on the Nexus, unless it has gotten an update since last month.. WiFi doesn't want to reconnect. I've seen others say the same thing.
Click to expand...
Click to collapse
yessss someone else with the wifi problem.when in like a perfect wifi signal zone, my friends gnex connect oerfectly and mine just says saved, wont connect to the networj
Sent from my Galaxy Nexus using xda premium

3-5 Hours Screen On Time

I've seen screenshots of people getting 5 hours of screen-on time. Is anyone here getting that? If you are, please post screenshots below of your setup, and be VERY specific on what you are running, and how you are doing it. Please share the knowledge. Oh, and please don't bother posting if you're using an extended battery.
I'm running Liquid Smooth 1.4 and the (supposed) 3800 mAh Trexcell battery that I bought for $20 on Amazon.
With the standard battery the most screen-on time I ever got was 2:30 hrs. Now I get 3:30-4:00 hrs of on-screen time. Not quite double, but an improvement.
Frankly I don't know how anyone is managing 4 hours of screen-on time with the stock battery.
As an addendum: Even when I was running stock, I was getting equal-to or worse values for screen-on time.
95% of the people getting 4-5 hours of screen on time are on the GSM version. 2-3 hours is typical for Sprint and Verizon users.
Setups don't make a huge difference. What makes the difference is usage while the screen is on.
Depending on the usage, i can get 4 hours screen time on stock 1750mAh battery.
Just occasionally surfing the web using WiFi, no 3G connection, occasionally pressing the power button to check the time and 30% brightness.
I use AOKP + Franco (both latest), and always get around 3h - 3.5h. Half the time I'm using wifi, and I never use data. I don't have cell service 25% of the time, and usually have weak cell service.
Most of them are on wifi... like me I can get 5hrs of display time over wifi but only about 3hrs on my terrible 3G speeds and connection.
With the stock battery.
Sent From My Sprint Galaxy Nexus via XDA Premium
When I was running AOKP build 36 with Franco Kernel 166 I was able to get 3:55 with the stock battery. I did underclock to 1036MHz with some slight undervolting. I never use WiFi and my data is only on when my screen is on. I also played games for about an hour and a half.
Now I'm on AOKP build 38 with Franco's Milestone 4, and I usually average 2-3 hours of screen on time.
Unless the spring and verizon versions are so wildly different, I'm going to ask for screenshot proof if this. I bet you're mistaking "awake" time for screen-on time.
absoluteparanoia said:
Unless the spring and verizon versions are so wildly different, I'm going to ask for screenshot proof if this. I bet you're mistaking "awake" time for screen-on time.
Click to expand...
Click to collapse
They are wildly different. They use different cellular technology.
But you just said at the top of the thread that Spring and Verizon have comparable times, now they are wildly different? They are both CDMA. In the case above its WiFi only.
absoluteparanoia said:
Unless the spring and verizon versions are so wildly different, I'm going to ask for screenshot proof if this. I bet you're mistaking "awake" time for screen-on time.
Click to expand...
Click to collapse
No problem...
Sent From My Sprint Galaxy Nexus via XDA Premium
absoluteparanoia said:
But you just said at the top of the thread that Spring and Verizon have comparable times, now they are wildly different? They are both CDMA. In the case above its WiFi only.
Click to expand...
Click to collapse
I thought you were talking about Sprint/Verizon and the GSM model, that is my fault.
BUT, Verizon has LTE for the majority of people, which will suck the battery dry faster than EVDO Rev A on Sprint.
joshnichols189 said:
I thought you were talking about Sprint/Verizon and the GSM model, that is my fault.
BUT, Verizon has LTE for the majority of people, which will suck the battery dry faster than EVDO Rev A on Sprint.
Click to expand...
Click to collapse
I concur... usually if you have good LTE speeds and connection.. your battery life will be better same goes for 3G... i've seen people with full bars on 3G pull almost 4hours with the stock battery, yet with a 1-2 bar connection and a .50mbps speed... i can almost get 3 hours. I would assume that LTE would be less of a battery drain unless you have terrible connection to it.
ÜBER™ said:
I concur... usually if you have good LTE speeds and connection.. your battery life will be better same goes for 3G... i've seen people with full bars on 3G pull almost 4hours with the stock battery, yet with a 1-2 bar connection and a .50mbps speed... i can almost get 3 hours. I would assume that LTE would be less of a battery drain unless you have terrible connection to it.
Click to expand...
Click to collapse
LTE is more of a battery drain than EVDO I believe. Unless you have full signal. All the time.
joshnichols189 said:
LTE is more of a battery drain than EVDO I believe. Unless you have full signal. All the time.
Click to expand...
Click to collapse
hmm doesnt make sense, i figure the faster speeds would help... then it wouldnt have to struggle to pull something up through, lets say the web browser. I mean if you have 1bar of LTE then yeah thats gunna drain faster or similar to 3G. But 3-4 would be optimal.... i assume im terribly wrong but.. these are just my thoughts and assumptions
ÜBER™ said:
hmm doesnt make sense, i figure the faster speeds would help... then it wouldnt have to struggle to pull something up through, lets say the web browser. I mean if you have 1bar of LTE then yeah thats gunna drain faster or similar to 3G. But 3-4 would be optimal.... i assume im terribly wrong but.. these are just my thoughts and assumptions
Click to expand...
Click to collapse
In terms of data transfer, sure but I believe just getting and holding onto an LTE signal, especially for a CDMA-based phone causes a lot of the problems.
HOW!!!!! What are you running, what apps you have, etc.
Like I said over all wifi. Skanwich and Samurai Kernel. I don't have anything that syncs. I dont use any "battery" apps and this is just Xda and various other games and YouTube... it just doesn't show up... for some reason. Also its undervolted but stock frequencies. Using the on demand governor.
Sent From My Sprint Galaxy Nexus via XDA Premium
joshnichols189 said:
LTE is more of a battery drain than EVDO I believe. Unless you have full signal. All the time.
Click to expand...
Click to collapse
I can vouch for this. When I am at home I drain battery as slow as EvDo when on LTE. But I have a better signal than most people out there.
Whatcha running?

[Q] Poor Battery Life on CM10.1 (RC2)

I have been using CM10 for awhile and usually find it to be great. However recently I have noticed my phone doesn't seem to last a full day anymore and this is minimal screen time. I updated to CM10.1 (RC2) when it was released, I'm not sure if that contributed or if there's something else I'm missing. I have found the best performance by disabling LTE and using WiFi whenever possible. Still though it lasts 9 hours with about 1h30m screen time. If I use it anymore the battery may only last 5 or 6 hours, and this is just using it for occasional web browsing and some texting.
My service provider is Koodo (Telus) and I live in Burnaby BC, so I usually have a pretty good cell signal.
I have attached some screenshots of my battery usage. This was on a day with only light usage and no music or media used; LTE was disabled and WiFi was on.
Any ideas as to what could be causing this, or if this is normal would be appreciated.
Thanks!
smcw said:
I have been using CM10 for awhile and usually find it to be great. However recently I have noticed my phone doesn't seem to last a full day anymore and this is minimal screen time. I updated to CM10.1 (RC2) when it was released, I'm not sure if that contributed or if there's something else I'm missing. I have found the best performance by disabling LTE and using WiFi whenever possible. Still though it lasts 9 hours with about 1h30m screen time. If I use it anymore the battery may only last 5 or 6 hours, and this is just using it for occasional web browsing and some texting.
My service provider is Koodo (Telus) and I live in Burnaby BC, so I usually have a pretty good cell signal.
I have attached some screenshots of my battery usage. This was on a day with only light usage and no music or media used; LTE was disabled and WiFi was on.
Any ideas as to what could be causing this, or if this is normal would be appreciated.
Thanks!
Click to expand...
Click to collapse
Did you update your bootloaders? If so, you probably have the LK4 modem, I'd try flashing the LL1.
Also, you can download BBS (BetterBatteryStats) from here to help narrow down what drains your battery.
It has been known that CM10.1 has been giving poor battery life ever since the Linux 3.4 kernel rebase. I'm not sure if there is a fix, or if the CM guys are working on it at all... It has been 7 days since the last kernel commit for d2.
smcw said:
I have been using CM10 for awhile and usually find it to be great. However recently I have noticed my phone doesn't seem to last a full day anymore and this is minimal screen time. I updated to CM10.1 (RC2) when it was released, I'm not sure if that contributed or if there's something else I'm missing. I have found the best performance by disabling LTE and using WiFi whenever possible. Still though it lasts 9 hours with about 1h30m screen time. If I use it anymore the battery may only last 5 or 6 hours, and this is just using it for occasional web browsing and some texting.
Click to expand...
Click to collapse
I can support this, I am getting about the same battery life as you. Ever since updating to RC2 I have noticed that my battery life has diminished. I have a spare samsung battery, and normally I wake up, boot and go to school and use my phone a fair amount for texting, researching, and music. A full charge will usually support this until around 10-12 hours later, then I change batteries in the evening play more music and web browse. I took a screenshot of my battery history a few days ago, you'll notice that the graph increases without the phone ever being connected to a power source.
Has anyone checked their "Cell Standby" to see if there is any time without signal showing?
If you haven't toggled your LTE off, have a look sometime and let me know. If it is showing a percentage of time without signal, go back to your battery life graph and see if there is any RED in your Mobile Network Signal. If you see time without signal but no red in the bar let me know.
I've got some ideas on why battery life isn't great and I'm trying to build a case for it. Guys who frequent locations with poor LTE (4G) signals are who I'm mostly looking to get data from.
Any information that you guys might have would be very helpful to me. Screen captures are welcome. I've uploaded a couple of myself to show what I am talking about.
Cheers.
flexfulton said:
Has anyone checked their "Cell Standby" to see if there is any time without signal showing?
If you haven't toggled your LTE off, have a look sometime and let me know. If it is showing a percentage of time without signal, go back to your battery life graph and see if there is any RED in your Mobile Network Signal. If you see time without signal but no red in the bar let me know.
I've got some ideas on why battery life isn't great and I'm trying to build a case for it. Guys who frequent locations with poor LTE (4G) signals are who I'm mostly looking to get data from.
Any information that you guys might have would be very helpful to me. Screen captures are welcome. I've uploaded a couple of myself to show what I am talking about.
Cheers.
Click to expand...
Click to collapse
Poor signal is one hell of a battery drainer. I would suggest trying different modems to find one that works better in your area.
BWolf56 said:
Poor signal is one hell of a battery drainer. I would suggest trying different modems to find one that works better in your area.
Click to expand...
Click to collapse
No no. Modems do not affect this issue at all and with the new phones now a days modems don't play as big of a role as they used to with signal strength. Anyway this issue is bigger than that. CM10.1 isn't reporting 4G low signal strenght correctly. It jumps from -115 at one bar to 0dBm no bars instead of switching over to a 3G signal or showing a value that is accurate like -117dBm.
Flashing back to the M1 release of CM10.1 or even to stock and the handoff from 4G to 3G is seamless. We aren't seeing that anymore with the later released even as early as RC1.
Here is my JIRA report.
https://jira.cyanogenmod.org/browse/CYAN-1209
You can see I've put some work into it. Trust me, this isn't a flash a different modem, change network preferences or anything type of issue. I've tried all that before finally starting to gather some screen captures and information on the way the phone is handling it's network signals.
I've also talked about it extensively in the CM10.1 Nightlies thread in the dev section over the last week or two.
http://forum.xda-developers.com/showthread.php?p=41931891#post41931891
Also my original post was asking for anyone who has seen a time with signal recorded under cell standby BUT NOT showing any red in the mobile network status graph. Different than just no signal at all and red showing meaning you have no connection to the carrier at all.
flexfulton said:
No no. Modems do not affect this issue at all and with the new phones now a days modems don't play as big of a role as they used to with signal strength. Anyway this issue is bigger than that. CM10.1 isn't reporting 4G low signal strenght correctly. It jumps from -115 at one bar to 0dBm no bars instead of switching over to a 3G signal or showing a value that is accurate like -117dBm.
Flashing back to the M1 release of CM10.1 or even to stock and the handoff from 4G to 3G is seamless. We aren't seeing that anymore with the later released even as early as RC1.
Here is my JIRA report.
https://jira.cyanogenmod.org/browse/CYAN-1209
You can see I've put some work into it. Trust me, this isn't a flash a different modem, change network preferences or anything type of issue. I've tried all that before finally starting to gather some screen captures and information on the way the phone is handling it's network signals.
I've also talked about it extensively in the CM10.1 Nightlies thread in the dev section over the last week or two.
http://forum.xda-developers.com/showthread.php?p=41931891#post41931891
Also my original post was asking for anyone who has seen a time with signal recorded under cell standby BUT NOT showing any red in the mobile network status graph. Different than just no signal at all and red showing meaning you have no connection to the carrier at all.
Click to expand...
Click to collapse
Well then, I stand corrected. Great work, thanks!
flexfulton said:
Has anyone checked their "Cell Standby" to see if there is any time without signal showing?
If you haven't toggled your LTE off, have a look sometime and let me know. If it is showing a percentage of time without signal, go back to your battery life graph and see if there is any RED in your Mobile Network Signal. If you see time without signal but no red in the bar let me know.
I've got some ideas on why battery life isn't great and I'm trying to build a case for it. Guys who frequent locations with poor LTE (4G) signals are who I'm mostly looking to get data from.
Any information that you guys might have would be very helpful to me. Screen captures are welcome. I've uploaded a couple of myself to show what I am talking about.
Cheers.
Click to expand...
Click to collapse
I can probably come up with some data, when I'm at work I generally get a low signal, I never toggle LTE, though I live in a town of ~8000 people, far from major centres. I believe we have HSPA+, but I'm generally connected to 3G. Right now, I've had normal battery life, (no increasing), and 0% time without signal, should I ever have <0% I'll message you some data. Thanks for your work!
I can confirm that I'm having this issue as well. I live in a 4G city (Boston), but my high school has practically no 4G reception. I noticed that unless airplane mode is enabled in the school, I have a battery drain of about ~1 per 5 minutes. The battery stats shows certain red areas when the signal is close to 0.
I'm running the latest nightly (5/29), but I'm flashing back to the M1 ROM until this is fixed. If I encounter any issues with this ROM, I'm probably going to flash back to stock.
Hopefully the devs can get on this when they have time.
Piegoodman said:
I can confirm that I'm having this issue as well. I live in a 4G city (Boston), but my high school has practically no 4G reception. I noticed that unless airplane mode is enabled in the school, I have a battery drain of about ~1 per 5 minutes. The battery stats shows certain red areas when the signal is close to 0.
I'm running the latest nightly (5/29), but I'm flashing back to the M1 ROM until this is fixed. If I encounter any issues with this ROM, I'm probably going to flash back to stock.
Hopefully the devs can get on this when they have time.
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Battery life has actually improved quite a bit since rc2, but when I'm at school, where the signal is bad (most of the time I get "emergency calls only"), I see faster than usual battery drain as well. I think that this is normal though, because even my old dumbphone drained battery quickly when there was no signal.
Sent from my SGH-T999 using Tapatalk 4 Beta
klin1344 said:
Battery life has actually improved quite a bit since rc2, but when I'm at school, where the signal is bad (most of the time I get "emergency calls only"), I see faster than usual battery drain as well. I think that this is normal though, because even my old dumbphone drained battery quickly when there was no signal.
Sent from my SGH-T999 using Tapatalk 4 Beta
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Emergency Calls Only and Red in the mobile network history aren't what I'm referring too with my issue.
Those two things would indicate you phone had no cell signal at all to your carrier. I'm talking about being on such a poor 4G signal but still being connected to the Roger's network. It's hard to explain.
Anyway I appreciate your input.
There has been a lot of discussion on this in the CM10 Nightlies thread in the dev section if anyone is interested in reading or check out the JIRA report linked on the first page of this thread.
flexfulton said:
Emergency Calls Only and Red in the mobile network history aren't what I'm referring too with my issue.
Those two things would indicate you phone had no cell signal at all to your carrier. I'm talking about being on such a poor 4G signal but still being connected to the Roger's network. It's hard to explain.
Anyway I appreciate your input.
There has been a lot of discussion on this in the CM10 Nightlies thread in the dev section if anyone is interested in reading or check out the JIRA report linked on the first page of this thread.
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I'm still connected to the AT&T network, but it's a very weak signal when I'm at school.
Just flashed back to stock, and the draining issue disappeared. I guess there's still some issue regarding cell signal that's draining the battery.
I've got the same issue, I thought it was just me. I'm on Rogers
I even lose battery (about 1% every 30 minutes) while plugged in and charging, if I'm listening to music, and checking my phone once every half hour for texts or emails.
The other day at the gym while listening to music and using 1 note taking app, it went from 95% to 15%. When I checked, it said the phone was active for 1 hour and 5 minutes even though I never used the phone.
I'm going to install that bettery battery status app now.

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