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Hello everyone!
I received my Vibrant from the US a week ago and noticed that when 3G is on, the reception is 1/2 bars at most. While it's connected, the device gets hot in the top part and the battery drains like a F1 racing car.
I though I could see how good is the signal and it's about (-90) - (-100) dbm.
I never had reception issues with my previous phone that is 3 years old (HTC Touch Cruise) whose reception is quite good. My company's antenna is about 1 Km far and it's emitting 3G in the WCDMA 2100 MHz band.
Could any setting improve the reception to avoid heating and battery consumption?
Thanks a lot!!
You may want to try to set it to 2G only if you want a good battery life.
Sent from my SGH-T959 using XDA App
Maybe somebody knows an application that switches from 3G to 2G when the reception is not good. It might be very handy.
Also, I wanted to know what levels are acceptable in dbm for a 3G connection that doesn't drain the battery like crazy.
Thanks for your reply!
Why is it that when I'm on wifi, my battery last longer vs while I'm on 3G?
Sent from my HTC Aria using XDA Premium App
Wifi uses less power, it's a different frequency, as you're much closer to the wifi device than you would be the 3G cell mast.
plus, 3G need to find signal, when you in a place where 3G signal is weak, it will drain more battery
Use it when you need it...
After serval Test while I was in school and at home I found out:
Edge with Datasync on is the worst! Battery drains in 4 to 5h
Hspda/Hsupa with a good connection is way better. Batterylife 7h
If you just turn if off it saves a lot of energy! Up to 36h
So what I am doing now: I turn the Mobile Network off when I see that little E in the top right corner because the connection is so slow anyway..
Specs of my Phone:
HTC Desire HD with RCMix3D KINGDOM v1.1
1370mAh Battery
For actual data transfer, it depends on how often and how much is being sent.
3G transfers faster, so if you're just going after 1 thing, it can be less draining than 2G, assuming full signal strength on both, because it's in use for less time.
Yes radio and signal strength affect the battery. Some radios work better than others in certain areas thus giving a better signal. If you are right next to a tower your phone will last a while. The phone always tries to get a better signal thus causing drainage.
Thanks dudes, good info
Sent from my HTC Aria using XDA Premium App
Hello all,
Recently i bought Razr XT910 (1 month ago). Because of failure on power button on first handset, provider exchanged it with new handset, now everything is ok except..
On both handsets comes up overheating issue when i was using HSDPA/3G network data for internet surfing. In 20-30 minutes back side and front side (LCD) comes very hot. Application for battery temp shows in idle cca 27C after 30 minutes just web browsing comes up to and over 40C.
This never happen if i play games, watch videos. Also heating is not present if i access and browse over internet on WIFI connection. And i didnt root phone yet and i already done factory defaults.
Has anyone experienced the same problem? Any suggestions?
Specific of my phone:
651.73.30.XT910.NonEFIGSRetail.en.EU
Android Version: 2.3.5
SPU: 11 M1-2
Radio Version: U_03.1C.85P
Bootloader Version: 0A.67
Webtop version: WT-2.0.0-113
Thanks
Try to use the phone at different places. Check the signal reception. Low reception means higher transmitting power needed. So, more power needed and makes the battery and transmitter circuit work harder.
Sent from my XT910 using XDA App
bahathir said:
Try to use the phone at different places. Check the signal reception. Low reception means higher transmitting power needed. So, more power needed and makes the battery and transmitter circuit work harder.
Sent from my XT910 using XDA App
Click to expand...
Click to collapse
Thanks for reply. I tried this at work where i have full signal HSDPA (antena is 100 meters away and signal is very good), and at home i have very good signal on 3G network. I am not sure that the signal strenght is reason for heating... What about Radio Version: U_03.1C.91P, what improvements does it have?
I am on Asia GSM , HSDPA with 85P baseband. Everyday I download several podcasts from twit.tv and it is getting warm, but it cools back to normal after the download is finished.
Check any background process which may uses Internet connectivity all the time.
You can check signal strength at Settings. - About - Status
Sent from my XT910 using XDA App
Normally you see high temps with heavy 4G LTE/CDMA phones. Haven't heard of many GSM phones on any brand ever overheating. May want to return it again. Sounds faulty to me, and the hotter you run, the worse your battery life will be.
@got556
I read about phones 4G LTE/CDMA with high temps, but as far as i know my phone is 3G (gsmarena). Mybe it is faulty, but this is second one with same issue.
@bahathir
can you mesure and post here battery temp while dowloanding or surfing internet for 30 minutes? Mine also cool down when surfing is finished, but meanwhile...it worries me.
I will check background services for activity.
Started at CPU temp : 31.5 degree Celsius. I am using OS Monitor app.
Opened YouTube and watched one of the clips in TheAlexJonesChannel. At the end of 7 minutes clip, CPU temperature was 35 degrees Celsius.
Next 15 minutes clip, temperature was 37 degree Celsius.
Another 15 minutes clip, the temperature was 38 degree Celsius.
Signal strength : -89 dBm. WCDMA only mode
Room temperature : 26 degree Celsius.
Now, it cools as nothing was happened.
Sent from my XT910 using XDA App
I wouldn't call it was overheating since your case is normal. If you surf 30minutes nonstop over wcdma, any phone will get noticebly hotter but it wouldn't like you can't touch it.
Sent from my XT910 using XDA App
Semseddin said:
I wouldn't call it was overheating since your case is normal. If you surf 30minutes nonstop over wcdma, any phone will get noticebly hotter but it wouldn't like you can't touch it.
Sent from my XT910 using XDA App
Click to expand...
Click to collapse
What he said. An active mobile data connection will produce a lot of heat, especially when using 3G. When on 4G, your phone is using up a much smaller portion of the total available bandwidth so the radio doesn't have to work as hard, whereas over 3G your device and radio have to work much harder to maintain the necessary data rate.
This can be compounded by factors like ambient temperature, GPU accelerated applications (browser), the physical layout of the device's hardware, and even how you hold your phone while using it.
The good news is, 40°C is not a 'dangerous' temperature level for your battery. Given how high your ambient/idle temperatures are, you're really not generating that much more heat.
In general, I don't think you have to start worrying about Li-Ion batteries until they hit about 45-50°C (don't quote me on that), at which point you start running into issues like thermal runaway and damage to the battery.
Hope that helps.
Sent from my Droid Razr Maxx
DroidSmith.Blogspot.com
Sorry, double post, but this is important:
Every Android device I've worked with will generate MUCH more heat when connected to AC power (there is a scientific term for this phenomenon, but the name escapes me). With rooted devices, I tend to account for this by creating an underclocked profile in SetCPU for when the device is plugged in.
Sent from my Droid Razr Maxx
DroidSmith.Blogspot.com
Hi all.. My Razr XT910 touches 45° when I play games like angry birds or similar ones..is it considered normal?
Sent from my XT910 using XDA
Hi guys,
I am sorry for (very) late reply Recently i hit 44°C with active web browsing (facebook,news pages...) and i didnt watch any movies in about 20 minutes. The phone was really hot and it was very uncomfortable to hold it and touch it. In the meantime i contacted motorola support. After their advise i set phone to factory defaults and then i also exchange micro sim card (for free) just in caseif there is any problem with it. But problem is still present. So i decided to take phone to repair centre. They tested the phone for a few days and they said the phone is working normally. They also reflashed my current SW....On friday i got phone back and problem is still here...Now I wonder how they tested the phone and what is for them to normal operation. And i am also stuck at SW version. Does anyone know what are differences betwen GB,FR,DE, NonEFIGS and other versions? Is there just language difference or is also hardware diferences?
I am also worried what will happen in summer with high temperatures outside..
Well, I don't think is something unusual... Its same like your laptop - if the system is busy and the processor has lot of work, it gets simply hot..
Keep in mind that the razr has two cores and if you are playing games or watching movies or even browsing web containing some flash etc. it may get hot because the cores are running at 1,2ghz and it generates heat...
I don't think its something surprising and you will face it with every nowadays smartphone..
If the temperature don't get down after few minutes the phone is idle, check if there is some stuck process because it seems that most likely there is something running on background...
I personally use the System Tuner which gives me a great overview about the current phone's load etc...
@maarawoe
i undarstand what you are trying to say. But web browsing over WIFI does not generate that much heat, the phone gets a little warm not hot as on mobile data (aprox. 35-36°C) and also when playing angry birds or something dos not get that hot.
As i said i am just concerned what will happen on summer time.I hope that the phone will not explode
I will try that app to see more details what is happening with system.
How high temperatures do you get with razr?
mitkovip said:
How high temperatures do you get with razr?
Click to expand...
Click to collapse
I don't know exactly but definitely high enough that I notice it but not high enough to get scared :-D
But it really depends what exactly I am doing...
mitkovip said:
i undarstand what you are trying to say. But web browsing over WIFI does not generate that much heat, the phone gets a little warm not hot as on mobile data (aprox. 35-36°C) and also when playing angry birds or something dos not get that hot.
Click to expand...
Click to collapse
WiFi hotspots are usually 100m away at most; but since the range from cell towers can be measured in kilometres/miles, the power needed to talk to them is much higher. Some of this power is lost as heat. All devices with HSPA and LTE radios get somewhat hotter when the data connection is used heavily.
Recently trouble shot this same problem for someone else. Try this:
1) Turn off Wi-Fi
2) Go into wireless settings and DELETE the saved profile for the Wi-Fi network you're using (make sure you know the network key first)
3) Turn on Wi-Fi, reconnect to the network.
High temperatures are common under certain conditions, such as being connected to AC power, using multiple radios simultaneously (ex: GPS + 4G), CPU/GPU intensive applications, and of course high ambient temperature.
45°C is not dangerously high, but can indicate other problems. Anything higher than 50°C and you may start experience issues like thermal runaway (battery rapidly discharges).
Sent from my Droid Razr Maxx
DroidSmith.Blogspot.com
JPtheSmith said:
Recently trouble shot this same problem for someone else. Try this:
1) Turn off Wi-Fi
2) Go into wireless settings and DELETE the saved profile for the Wi-Fi network you're using (make sure you know the network key first)
3) Turn on Wi-Fi, reconnect to the network.
High temperatures are common under certain conditions, such as being connected to AC power, using multiple radios simultaneously (ex: GPS + 4G), CPU/GPU intensive applications, and of course high ambient temperature.
45°C is not dangerously high, but can indicate other problems. Anything higher than 50°C and you may start experience issues like thermal runaway (battery rapidly discharges).
Sent from my Droid Razr Maxx
DroidSmith.Blogspot.com
Click to expand...
Click to collapse
Hi, thanks for replies.
@JPtheSmith - high temperatures are present only browsing net over 3G (we dont have 4G..yet). Even if Wifi is turned off. If i use Wifi for web i dont get so high temperatures. And the ambient where i use my phone is around 20-25°C. Maybe there is some incompatibility between phone gsm module and provider network. I will try to get another provider sim and check it.
I had a long talk with Verizon tech support about high temperatures.
The main causes.
1. Bad signal area, makes the phone work harder.
2. Running to many apps. To many Background apps can and will over-tax your phone.
3. Last but not least, HD games will max out your phones resources.
Has anyone managed to find a fix for the cell standby battery drain? As for the people not suffering from it, what rom and kernel are you using?
Sent from my GT-I9300 using XDA
HyperGalaxy with siyah kernel = the perfect combination....so fast with an abundance of free ram and no signal battery drain
Sent from my S3 overclocked to 1.6ghz with HyperGalaxy Rom
Thanks! I don't have the issue anymore with hypergalaxy!
Sent from my GT-I9300 using XDA
has become much better since i flashed XXALF2 baseband and Franco r2 kernel. Standby (mobile data on) drop was around 4-5% per hour before, now its around 2.5% per hour
Stock LF2 no problem .
jje
Cell standby drain cannot be confirmed by all people and is related to the 3G setup, antennas and location of your provider.
Here the network show a very bad case of hopping when switching to/from IDLE (fast dormancy) which drains the battery in no time.
I'm currently running Juicedefender Ultimate beta with AOSP helper which switches to 2G when the screen is off and no data is transferred. Only issue is that you'll loose connectivity twice (3G->2G and 2G->3G) for a very short time but other than that it seems to work fine and has solved my battery drain problem.
I've been used to switch back to 2G as soon as I don't need 3G/HSPA with my S1 as it's drain is even worse, so it's no big change for me
JJEgan said:
Stock LF2 no problem .
jje
Click to expand...
Click to collapse
i conquer on this.
i do use now 2x battery saver, which does the same thing as the juicedefender, but even before that, my battery is very well managed. I would assume that the fact of cell standby being on the top of the list when you havent been using the phone for anything else is logical to be there. That IS what will be draining the battery. I would only see the problem on those handsets that this drain is not within acceptable limits, ie, whatever people have measured as normal drain for these circomstances.
I use juicedefender and with the latest update the battery drain is less than 2% an hour, im happy with that
Ive always found by the the biggest drain in standby being data always being on
That's not totally correct. Data is not what is actually draining your battery (at least it never was for me).
It's 3G not being in IDLE due to sending/receiving data, fast dormancy not being (properly) supported by the network or the network provider having a badly configured/balanced network.
If you switch to 2G, you'll find that your phone can run 2 days with data enabled if not heavily used.
Big exception seems to be Exchange's ActiveSync which is, when an account is configured (whether enabled or not) always top-of-the-list in BetterBatteryStats. But well... Exchange sucks anyway =)
I should have typed 3g data, this single act of letting the 3g connection be managed by juicedefender doubled my battery life
Yeh i have no idea for the technical reason but managing the 3g connection makes a big difference to me
hmm i am not aware of the actual network causing problems with the drain issue during 3g/2g signal. I only knew that when the signal is bad in general or you get no signal at all, then the phone is wasting too much energy trying to log on to a network itself.
i have the 3g swap on my 2x battery saver to rotate every 5min when the screen is off. Its the smallest amount of time you can apply. However i dont know if im the average phone user, as i see here lots of people doing a lot more things with their handsets during a day.
Not so sure about the 3G data thing but I'm only using the phone on wifi with data disabled and I still got the battery drain.
Sent from my GT-I9300 using XDA
Wifi is another issue, especially when you have the 5Ghz band enabled and your phone hops between both. Try checking if your Wifi's channel is crowded and configuring the router to another less crowded one.
Then force your phone to use either the 5Ghz or 2.4Ghz band depending on your setup; drain should've gone away.
d4fseeker said:
Wifi is another issue, especially when you have the 5Ghz band enabled and your phone hops between both. Try checking if your Wifi's channel is crowded and configuring the router to another less crowded one.
Then force your phone to use either the 5Ghz or 2.4Ghz band depending on your setup; drain should've gone away.
Click to expand...
Click to collapse
Gonna try that out and will see how it goes
Sent from my GT-I9300 using XDA
Taking a close look at the long battery review thread, while there is a lot of information there regarding individual battery usage, the screen-on and overall usage times vary by a lot. It is impossible to draw conclusions regarding why the results vary so much, because most people did not give enough relevant information there.
I think it will be very interesting if we all used the same *comprehensive* method to compare our battery usage. We could really discover important things about our individual usage and how it compares to others (and how to make it even better).
It is important to note that when battery life is low (in comparison to other G2 users), sometimes this could be because we are taxing our device with heavy usage (and nothing is actually wrong), but other times something is definitely wrong (wakelocks, bad phone reception, etc.). This thread will help each and every one of us (that get lower than expected battery life) understand which of these two possibilities is correct for him (something wrong VS taxing usage).
In order to do this, let's use the excellent "GSam Battery Monitor" app, which could be downloaded freely from the Play Store.
Please post your results when your battery becomes low (around 10 percent), after it was fully charged.
If you want an accurate opinion about your battery behavior, with tips on how to improve things, please provide all the attached screens (please provide the graph image in landscape mode, and sort it by "other"):
Is this really necessary? The G2 has a fat battery. But any amount of power can be drained if you drain it. Enough said.
Sent from my LG-D801 using XDA Premium 4 mobile app
RiverdALIEN said:
Is this really necessary? The G2 has a fat battery. But any amount of power can be drained if you drain it. Enough said.
Sent from my LG-D801 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I say let's give this a shot. This phone has a beefy battery indeed, but still, some of us are posting 7 hours screen-on times, while some of us only 4. Let's see what this thread will provide us with. I have a good hunch this will be a very revealing thread.
Noam23 said:
I say let's give this a shot. This phone has a beefy battery indeed, but still, some of us are posting 7 hours screen-on times, while some of us only 4. Let's see what this thread will provide us with. I have a good hunch this will be a very revealing thread.
Click to expand...
Click to collapse
Okay Well in the interest of troubleshooting good luck. I get 1.5 days easily with a good amount of music play. I always suggest people delete the Facebook app and use it in the browser, and disable data/sync while you're in a bad reception building/area
Sent from my LG-D801 using XDA Premium 4 mobile app
RiverdALIEN said:
Okay Well in the interest of troubleshooting good luck. I get 1.5 days easily with a good amount of music play. I always suggest people delete the Facebook app and use it in the browser, and disable data/sync while you're in a bad reception building/area
Sent from my LG-D801 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Waiting to see your GSam results here
Don't delete face book...use greenify. Turn off location sharing unless on WiFi. No Google now. Simple
Sent from my VS980 4G using XDA Premium 4 mobile app
jrgilbert79 said:
Don't delete face book...use greenify. Turn off location sharing unless on WiFi. No Google now. Simple
Sent from my VS980 4G using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yep, these are some solid good general advices.
I could only drain the battery to 50% today, so I'm posting this for now to get this thread running (and tomorrow I'll post the 10% results). It's funny because I have no trouble finishing the battery everyday, yet today it's giving me "problems". It's like it knows it is being monitored, and the battery hogs are afraid of being greenified...
Let's get over my results in the main screen:
Phone: yes, I did not use the phone to make phone calls. Not unusual for me...
Screen: almost 4 hours screen time, pretty impressive considering the phone has been running for more than 13 hours, and the battery is at 50%. On the other hand I did not make any phone calls, so this could be part of the reason for that excellent screen-on time. Btw, I'm using "Lux brightness control" instead of the LG2's pathetic brightness control feature, the Lux app itself drew practically zero power (as can be seen at the "App Sucker" screen, or actually, you can't even see it because it's too down in the list).
Phone Radio: At 7.9%, I don't really know whether it's good or bad, although this is definitely not a major battery user. I've attached the cellular reception screen too, just so people could reference with theirs. I think overall the reception is pretty good according to that image.
Wifi Active: The Wifi has been on the entire operating time. Most of the time it was connected to my home router, and some of the time it was not connected at all, but still on (when I was out of the house). I'm attaching the Wifi screen so people could see how much traffic the phone had through wifi, for reference. With only 3.9% battery usage, I think there is no need to turn the wifi off, ever.
Held Awake: The phone was awake for 1 hour (while the screen off, that is). Out of 13 hours being awake for 1 hour, I'm not sure whether this is good or bad. This will become clearer when more people will post their result here. It says that the power that was drawn during this 1 wake hour is 0.0%, I'm not sure if this is true, or some kind of inability of GSam to calculate battery usage for this awake period (if GSam IS correct, then I guess I don't understand what's the point of deep sleep, if the phone draws practically zero power even when awake...).
Bluetooth: The BT was on the entire operating time, but connected to a device only a short amount of time. In any case it drew no power according to this screen... like wifi, I think there is no need to turn the BT off, ever.
Regarding the "App Sucker" screen, I can't really say anything intelligent about this, no app seem to drain the battery too much. The 4 hours screen-on time was mainly spent browsing the internet, using Whatsapp, watching youtube, using XDA app (not even listed in the first screen) neither of which seem to drain the battery too much...
So, now that we have some reference (and a reference for a pretty good battery behavior, I think) It will be interesting to see how your results compare...
Just a quick question. I work in a building where there is terrible service. I mean so bad sometimes I get none at all. How does turning off mobile data save battery. Essentially your phone is still trying to connect to the mobile network all the same. I'm kind of looking for a technical explanation not just the 4g uses more battery type.
Sent from my VS980 4G using xda app-developers app
Don't forget, the vzw version will throw a wrench into these comparisons.
Thanks Devs. From my VZW G2.
djraimondi said:
Just a quick question. I work in a building where there is terrible service. I mean so bad sometimes I get none at all. How does turning off mobile data save battery. Essentially your phone is still trying to connect to the mobile network all the same. I'm kind of looking for a technical explanation not just the 4g uses more battery type.
Sent from my VS980 4G using xda app-developers app
Click to expand...
Click to collapse
If you have bad cellular reception, turning off mobile data can help, but as you said it won't completely solve the problem because the phone still needs to connect to the network so you could talk and send SMS. I think switching to airplane mode (and using WIFI) is the best solution for battery life in this case. Still, I think you should use GSam to really see how much battery is drained by your bad cellular reception.
I am using it now. Waiting until it drops to around 20% to post my results. Will get back.
Edit:
Here are my statistics. You think my phone just has bad reception and is in a bad area or there is something wrong with my antenna? My old Droid Razr HD was the same way, barely any service. I'm definitely not staying with Verizon. I pay out the noodle for "the best service" and I get crap. I live on Long Island outside New York City, my service should be amazing.
http://i.imgur.com/PDuWzZM.png
http://i.imgur.com/u4AR9Vl.png
http://i.imgur.com/IEA0Lir.png
http://i.imgur.com/K6rkYnD.png
Sent from my VS980 4G using xda app-developers app
Ok, as promised, here are my 10% results:
Phone: did have some phone calls today, though nothing significant. I guess my usage can't really tell how significant phone calls are going to be with the G2, though this should not be a significant battery drainer for most.
Screen: As you remember, yesterday, after 13 hour phone usage, I had 50% battery, I had 3 hours 47 minutes of screen-on time. At that point I thought I might get over 7 hours screen-on time, but here I show about 5 hours 25 minutes. I guess that if I completely drained it, I would have gotten close to 6 hours, not bad.
Phone radio: seems similar to yesterday, about 10% of the battery... I still get good reception, as the image shows.
Wifi active: Wifi had been on the entire time, using 5.6% of the battery.
Held awake: So, yesterday after 13 hours of usage, the screen was held awake 1 hours. Today, after a total of 31 hours, the phone was held awake a total of 3 hours. It seems that the phone consistently is held awake for about 1 hour, every 10 hours of operation time (under my specific configuration, that is). I still find it weird that this "held awake" time did not tax the battery at all. How is this possible ?
Bluetooth: was on the entire time, not connected most of the time. Zero impact on battery.
Regarding the App Sucker screen, similar to yesterday, can't say anything special about this. This day I kept browsing the interned using Opera browser, and added another hour using Runkeeper with GPS tracking (with screen off). After a full cycle of battery usage, the main battery draw comes from the Home launcher, next is Opera browser, and then the apps become pretty much insignificant in terms of battery usage. Maybe two last points here: I'm using both Lux brightness control (to control auto brightness) and Delayed Lock (to remove the lock when connected to certain wifi points and BT devices), both of these apps always run in the background, yet consume practically zero battery, so high recommendation for both of these (they also work great with the G2). Last point, I'm using all the google location access services (everything is turned on there), and I really don't see this taxing in any way, using this GSam report.
That's it for now. Waiting for your results for comparison.
djraimondi said:
I am using it now. Waiting until it drops to around 20% to post my results. Will get back.
Edit:
Here are my statistics. You think my phone just has bad reception and is in a bad area or there is something wrong with my antenna? My old Droid Razr HD was the same way, barely any service. I'm definitely not staying with Verizon. I pay out the noodle for "the best service" and I get crap. I live on Long Island outside New York City, my service should be amazing.
http://i.imgur.com/PDuWzZM.png
http://i.imgur.com/u4AR9Vl.png
http://i.imgur.com/IEA0Lir.png
http://i.imgur.com/K6rkYnD.png
Sent from my VS980 4G using xda app-developers app
Click to expand...
Click to collapse
Interesting results. I thought this thread would be revealing, and it doesn't disappoint already.
Your phone reception is pretty bad, much much worse than mine. BUT, you can see that the difference in battery draw is not really significant between my case (I have great reception) and yours, in both cases the phone radio took about 10% of the battery. It seems that the phone reception qaulity doesn't make much difference on the battery (whether it's pretty good, or pretty bad. Maybe this will change if the reception is horrific... like 0 and 1). Comparing my GSam report to yours, you will gain practically no battery advantage by making your phone reception better (at least considering your current phone usage - you barely made phone calls, but still phone reception is also important in order to keep the phone connected to the network, and also for mobile data...). This is REALLY surprising, I thought that when comparing my excellent reception to your very bad one, if I got 10% battery usage (for phone radio), you'll get something like 30%. This did not happen at all, surprisingly!.
Your Held awake time is pretty much similar to mine, as evertything else is similar to mine (wifi active, etc.), yet you seem to get significantly less screen-on time than I. I can think of one explantion: I see you are using G2's automatic brightness control, which is pretty horrible, while I use Lux brightness control, which can reduce the brightness much much more, when it's appropriate. I really can't think of any other major contributor to your battery drainage in comparison to mine...
One thing still keeps me bewildered: why doesn't the "held awake" period tax the battery ?? I mean, the phone is awake, yet no battery is being used... how could this be possible ? Is this a problem of GSam which can't read this information right ?
djraimondi said:
Just a quick question. I work in a building where there is terrible service. I mean so bad sometimes I get none at all. How does turning off mobile data save battery. Essentially your phone is still trying to connect to the mobile network all the same. I'm kind of looking for a technical explanation not just the 4g uses more battery type.
Sent from my VS980 4G using xda app-developers app
Click to expand...
Click to collapse
When you turn off mobile data the phone stops searching for a data connection, thus this battery draining process is halted
Sent from my LG-D801 using XDA Premium 4 mobile app
Barely read through the details but I charged my phone to 100% last night, pulled it around 6am today. Been texting and tweeting moderately. Made a few phone calls, checked voicemail. Used the flashlight a couple times and took a few pictures, flash off.
Sent from my LG-D801 using XDA Premium 4 mobile app
This is true but look at the sent part of data of the phone radio. My received data is much higher then yours but I can assure you I only receive data via WiFi because my phone signal is so bad. Your sent in comparison much more data then me probably via your phone signal.
This is also very important. I had my mobile data OFF while at work today. I have a shift tomorrow where I will keep the mobile data on and post new results.
Edit: Also about the phone being kept awake and not using any battery. It does seem odd. Perhaps we should also use the orginal screenshots of the stock battery app (pending you still have stock rom).
Sent from my VS980 4G using xda app-developers app
Something wrong with my photo attachments
Sent from my LG-D801 using XDA Premium 4 mobile app
The rest of my screenshots
djraimondi said:
This is true but look at the sent part of data of the phone radio. My received data is much higher then yours but I can assure you I only receive data via WiFi because my phone signal is so bad. Your sent in comparison much more data then me probably via your phone signal.
This is also very important. I had my mobile data OFF while at work today. I have a shift tomorrow where I will keep the mobile data on and post new results.
Edit: Also about the phone being kept awake and not using any battery. It does seem odd. Perhaps we should also use the orginal screenshots of the stock battery app (pending you still have stock rom).
Sent from my VS980 4G using xda app-developers app
Click to expand...
Click to collapse
But, I don't see how the stock battery app will shed any new light on the kept awake period, if anything, the stock battery app is less detailed regarding almost everything...