Battery Life/Data services while roaming - Nexus One General

I'd just like to share with everyone my findings with this setting. I had great battery life with my n1 one day, 16h 30m since charge at 22% wifi on all day and sipdroid running to receive calls over wifi.
Next day I enabled data services while roaming as an option and my battery was completely dead 6 hours in. I believe this was due to the fact that I don't get t-mobile service at work and it was trying to connect.
So I test it again the day after without this option, wifi, sipdroid, web browsing, regular calls. Again great battery life.
If anyone is getting poor battery life they may want to uncheck data services while roaming. in my area when I'm not in doors I get 3g signal like normal. I was wondering if this option is of any use to anyone or is just a battery killer for when you don't have signal.
I use the phone with my T-mobile data plan but also since I don't get service at work or in my basement I use wifi to get data and my normal calls with sipdroid, gizmo5 and GV.

Hmm interesting.
It would be awesome if someone could make an 1800 mah battery without requiring a bigger size case - for the N1. They got the 1600mah, can they do the 1800! I would buy that in a heartbeat.

Battery drain during T-Mobile Data Outage
I found that my battery, which normally lasts about 15-16 hours, drained completely in about three hours during this data outage. And I was not even using the device during this time!
In fact, the USB cable was insufficient in recharging the phone until T-Mobile finally got the data service running again.
Did anyone else notice this? Is this a 'feature' or something that we can expect to happen when out of a data source?

Related

Battery life and idle data connection

Did anyone try to compare battery life between no data connection and idle data connection?
I always turn data connection off after update, but I am asking how does idle data connection effects battery?
I know it drains it...but how much?
And the reason I don't know results from myself...
Sometimes my battery drops from 100 to 90 or less over the night, sometimes from 100 to 80 or even more, with the same usage or any usage at all...so I don't know how to compare it because it's so random...and this is without data connections, it is only device with phone on in sleep mode...
I once compared an over night-drain where no connection took 3% of the battery and with data connection 4%. Approx 8h sleep
It's hard for me to compare during normal use since my usage varies a lot from day to day. So I have nothing to contribute during daytime usage.
umiss said:
I once compared an over night-drain where no connection took 3% of the battery and with data connection 4%. Approx 8h sleep
It's hard for me to compare during normal use since my usage varies a lot from day to day. So I have nothing to contribute during daytime usage.
Click to expand...
Click to collapse
I was using wmlonglife for some time, however one time it stops to work - i have found that i had a permament data connection in idle, but didn't notice a thing, so technically it do not drains the phone dramatically
when you guys say "idle" data connection, is the phone not automatically checking for email accounts etc? If not have you disabled them overnight - how do you do that please?
From yesterday until today, until now, I left idle data connection and it dropped in 12h from 80 to 75.
When I tried to close connection and left it overnight it dropped from 100 to 93.
By my expirience there is difference in battery drain: 15% with idle data connectino and 7% without data connection.
But numbers change from day to day...but more or less is 2x more when i have data connection on idle
might have to do with the network.. most networks do their work at night because they seem to asume everybody is asleep.. it could be offline every now and then but keeps searching for updates..
Mine has 3g toggle turned off, but the 'data connection' toggle is always on, i have three email accounts that get checked over edge every 2 hours, and battery drops roughly 2% during 7 hours sleep.
yuo have 3g off permanently or just overnight?
What do you "lose" when using 2g vs 3g?
My options about 3g mode is set to auto, so I guess it switch to 3g or hsdpa when available...
wigwam12 said:
yuo have 3g off permanently or just overnight?
What do you "lose" when using 2g vs 3g?
Click to expand...
Click to collapse
yea 3g permanently off. I live right on the edge of my local 3g coverage, and with it on itchews through the battery as it switches on/off/on/off. I get full reception using edge which is easily fast enough for surfing low bandwidth sites(like xda dev! ) twitter and emails etc.
my HD2 drains battery VERY fast when i have idle connections. when i don't turn them off my phone battery is from 100% to empty in about 6 hours.. but maybe there is a problem with my device / rom.
i hate to use your thread for topic for this but maybe anyone can help me with my battery being empty so fast? i am using Dutch stock rom v1.66 with standard radio rom. i am going to try a newer radio rom tonight. but i dont think that is going to help mutch.. i dont mind flashing to a custom rom but i want the same user interface as i now have. i dont like the custom one's with their shiny buttons and stuff..
would really apreciate help / advise!
samsamuel said:
yea 3g permanently off. I live right on the edge of my local 3g coverage, and with it on itchews through the battery as it switches on/off/on/off. I get full reception using edge which is easily fast enough for surfing low bandwidth sites(like xda dev! ) twitter and emails etc.
Click to expand...
Click to collapse
Thanks. I think the most bandwidth site I would currently access is Facebook.
I will try 2G then. When I get more into using the phone as an internet device I guess I could turn it on.
Mind you in the middle of a major city and moving from Voda "excellent" to "very good" signal zones it should stay 3G most of the time not switch so often......
the rom i.m using makes it easy to manage data, left soft button on home screen brings up comm manager and all the toggles have been activated, takes moments to switch on/off 3g and wifi, the rest of the time the edge data just works fine.
incidentally, in terms of power use other things to look at that might get overlooked, block size on sd card, if its real small and you have lots of sd card access, such as progs installed there, browser cache there, can significantly increase the number of read writes to the card in any given time period, costing power.

Battery Life on Wifi - Outstanding!!

Basically, when I leave wi-fi on my phone has incredible battery life. If someone has already mentioned this feel free to bury this post, but to my knowledge it doesn't seem this has been posted yet.
With wi-fi off and 3g on
- Battery lost 5-6 percent per hour
Wi-fi on
- Battery lost 1-2 percent per hour (sometimes less than 1 percent depending on what your doing)
Right now after having my phone on for 34 hours my battery is still at 70 percent! I'm fairly certain this is because it disables the 3g radio altogether which apparently is a real battery hog. That or maybe my phone is just a fluke. I really don't know.
This also seems to be tied to the htc sense rom (correct me if im wrong) but if i remember correctly battery drainage increased when wifi was enabled in the stock rom. Currently, I'm using the latest htc sense rom from modaco, I'd really enjoy hearing if enabling wifi helps others extend their battery life.
your having better battery life with the Desire ROMs? that odd, my battery life with a Desire ROM was 20-30% worse compared to stock.
amlwaycooljr said:
Basically, when I leave wi-fi on my phone has incredible battery life. If someone has already mentioned this feel free to bury this post, but to my knowledge it doesn't seem this has been posted yet.
With wi-fi off and 3g on
- Battery lost 5-6 percent per hour
Wi-fi on
- Battery lost 1-2 percent per hour (sometimes less than 1 percent depending on what your doing)
Right now after having my phone on for 34 hours my battery is still at 70 percent! I'm fairly certain this is because it disables the 3g radio altogether which apparently is a real battery hog. That or maybe my phone is just a fluke. I really don't know.
This also seems to be tied to the htc sense rom (correct me if im wrong) but if i remember correctly battery drainage increased when wifi was enabled in the stock rom. Currently, I'm using the latest htc sense rom from modaco, I'd really enjoy hearing if enabling wifi helps others extend their battery life.
Click to expand...
Click to collapse
Actually, it's a well known fact that 3G uses more power on most (every?) phones than Wifi... so you're not alone.
Hey when you say WIFI on..do you mean WIFI and EDGE or did you completely disabled the radio?
I never would have thought having wifi on would extend battery life to such a great extent though, in most of the latest cell phone reviews and what not everyone recommends to have wifi off saves battery life but in this case just the opposite is true. I kinda knew the wifi was more efficient but I never expected such a large benefit from leaving wifi on all the time.
@ram130 I haven't actually touched the radios at all so I expect them all to be on or at the very least have edge on, I am able to receive and send calls and txt so I'm assuming at least some cell radio has to be on. All I did was use the htc sense rom and enable wifi.
The cellular radio is still on, but 3G/Edge (data) are disconnected. I don't know how Edge compares to Wifi, but 3G is a battery killer in comparison.
uansari1 said:
The cellular radio is still on, but 3G/Edge (data) are disconnected. I don't know how Edge compares to Wifi, but 3G is a battery killer in comparison.
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Click to collapse
amlwaycooljr said:
I never would have thought having wifi on would extend battery life to such a great extent though, in most of the latest cell phone reviews and what not everyone recommends to have wifi off saves battery life but in this case just the opposite is true. I kinda knew the wifi was more efficient but I never expected such a large benefit from leaving wifi on all the time.
@ram130 I haven't actually touched the radios at all so I expect them all to be on or at the very least have edge on, I am able to receive and send calls and txt so I'm assuming at least some cell radio has to be on. All I did was use the htc sense rom and enable wifi.
Click to expand...
Click to collapse
In other words you have "use 2G networks" checked right?
I'm gonna try this is now. I'm currently at 3hr 32m unplugged with 80% left. I have wifi enabled and on the stock rom. So I'll post back when I wake in a few a hours and see how it goes.
My only problem:
Wifi seems to disconnect alot during the hour regardless if sleep policy is set to NEVER. My wifi signal is -78dBm to -86dBm in my room and on channel 11(used wifi analyzer). Any suggestions why?
I have the same experience at home, I enable Wifi and leave the phone stay home for a couple of days and battery still 40%, when I go out and wifi is not connected, 3G kicks in and battery drops much faster.
I'm using cyanogen 5.0.4.1
Interesting. Did not know this!
I guess I won't feel so bad about leaving my phone on Wifi all day!
Also, does anyone know how much power is used by not having a radio signal and letting it constantly search? That seems to destroy my battery. But sometimes I am in an area with wifi but no radio access (deep within a building).
It's too bad this phone doesn't have UMA - that would make up for T-Mobile's lack of indoor coverage (at times), and probably improve battery life a lot in some cases.
But I have to say that on another phones I've used, especially WinMo devices, using WiFi instead of 3G seemed to always use more battery. But, it could very well be different on this phone...I'm definitely going to give this a try.
im not sure about the percentage but i agree,the battery drain is considerably more when searching for radio.im in a building most of the day and it doesnt take long.miss the UMA i had on my bberry.
Paul22000 said:
Interesting. Did not know this!
I guess I won't feel so bad about leaving my phone on Wifi all day!
Also, does anyone know how much power is used by not having a radio signal and letting it constantly search? That seems to destroy my battery. But sometimes I am in an area with wifi but no radio access (deep within a building).
Click to expand...
Click to collapse
I also Get. About 25% better battery on wifi
Well after 10hrs of the phone being on stand by I woke up. It was at 46%!! my god. Anyway I checked my email, read an article all taking around 15mins and guess what? I had 30% left!. I put it back to stand by for 3hrs and took a look at it and had about 16% left...
It is now charging after one hour with just 10min use of downloading apps ..Can ANYONE tell me why my battery is draining so much on wifi? When its on EDGE for the night after 10hr I would have around 70% left from a full charge. Anyone can help me out here?
I shall be getting a replacement battery for free Tuesday.
Stock android.
ram130 said:
Well after 10hrs of the phone being on stand by I woke up. It was at 46%!! my god. Anyway I checked my email, read an article all taking around 15mins and guess what? I had 30% left!. I put it back to stand by for 3hrs and took a look at it and had about 16% left...
It is now charging after one hour with just 10min use of downloading apps ..Can ANYONE tell me why my battery is draining so much on wifi? When its on EDGE for the night after 10hr I would have around 70% left from a full charge. Anyone can help me out here?
I shall be getting a replacement battery for free Tuesday.
Stock android.
Click to expand...
Click to collapse
Did you set your phone to only use 2G networks also? If you're not charging, wifi will probably disable after not being used for a while..so it's probably rolling to 3G if you haven't disabled it.
I'm not saying it's convenient to constantly switch back and forth... but this explains why it may not be a good test of the battery life the way you're running it.
uansari1 said:
Did you set your phone to only use 2G networks also? If you're not charging, wifi will probably disable after not being used for a while..so it's probably rolling to 3G if you haven't disabled it.
I'm not saying it's convenient to constantly switch back and forth... but this explains why it may not be a good test of the battery life the way you're running it.
Click to expand...
Click to collapse
Well yes I have it on 2G only. Any thing else could be contributing to it dying so fast?
Well I found a way to use my laptop as an AP. So I connected my N1 to it and getting full bars(-41dBm) in my room now. No wifi disconnects so far!(maybe it was my linksys before ?).. So far the battery is at 86% with some 3D games, been unplug for 1hr 50min now. I'll put it to stand by now and see how it looks after 10hrs.
I'm on a stock firmware(not rooted). 2G only selected.
The way I understand it is as follows:
Phone is on STANDBY:
3g==2g* which are both more efficient then wifi (that's why the default wifi policy turns wifi off if it's not being used)**
Phone is ACTIVE:
wifi is more efficient then 2g/3g because:
1) It's waaay faster and thus causes less battery drain* and
2) The AP (router) is much closer to the phone then the cell tower so in theory it doesn't need to use as much power to talk to the router.
*http://code.google.com/events/io/2009/sessions/CodingLifeBatteryLife.html
4:45min into it there is a power usage chart and 3G/EDGE idle power usage is about the same - also somewhere else in the video they talk about wifi vs 3g usage when transferring data.
** http://code.google.com/p/sipdroid/wiki/NewStandbyTechnique
States that 3g standby is more efficient then wifi
drak0 said:
** http://code.google.com/p/sipdroid/wiki/NewStandbyTechnique
States that 3g standby is more efficient then wifi
Click to expand...
Click to collapse
Someone needs to test this ok. ...already testing wifi
Ok I'm at 11hrs 30min on wifi and its at 67% with light usage(checking email, news for 5min)..improvement? kinda, because since turning off my laptop it switched back to getting low signal(-81dBm) from the router in the next room. Weird? I'm still thinking. anyway I'm heading out so gonna use the phone more today, lets see if it gets me through the day.
Still no where near the thread starter 30hrs!! Maybe stock really sucks? bad battery anyone??
@ram130 I'm not sure how my battery is lasting as long as it has so far. I'm up to what would be an insane number, 65 hours 36 percent left .. this battery just wont die. I haven't the slightest idea how it's lasting this long I just leave wifi on all the time and turn wifi standby off. If anyone could explain how leaving wifi on more than quadruples my battery life I'd sure love to know.

Battery life went from poor to awesome to even worse?

Bought my Xperia just over a month ago, and installed juicedefender and juiceplotter to help manage my power use.
At first, I did the whole charging cycle thing, and managed to get battery life up to nearly 20 hours after a week! In the past few weeks however, my phone barely lasts 10 hours now...the battery dies before I can get a chance to recharge. I am a heavy user, but that doesn't seem to explain the sudden drop in battery capacity.
Because of the drop in power over the last few weeks, I have set EVERYTHING to not update, and google sync has been set to sync every other day.
Will my battery just continue to get worse? or do I have a faulty battery?
don't get me wrong, I love my new phone...I just need to know if this is a typical problem, or if I need to get a new battery.
Thanks!
Hi - I'm getting about 40 hours out of mine.. I tend to switch mobile data off when I'm at home as I use wifi.. the problem seems mainly to lie with 3G.. so when I'm out and about I switch wifi off and mobile data on.. but I tend to keep to 2G (GSM) for background syncing etc.. and switch 3G(GSM/WCDMA preferred) on when I want to do any active stuff.. like internet browsing of using the XDA app... I also have my Wifi sleep policy set to "sleep when screen is off"..
What do you use your phone for? if you can tell me a bit about how your using your handset I might be able to give you some more specific advice.
Thanks for the fast reply!
I use juice defender to switch off 3G when the screen is off. It connects every 15 minutes, could that be the issue?
I've looked for a way to switch to GSM, but I can't seem to do it with my carrier(don't have the option in my settings).
I use a lot of data, up to 3 gigs per month 3G only(on average). 4 or 5 calls a day, and probably 100 texts per day. I keep my screen at around 25% brightness.
If you can't switch to GSM then maybe try switching mobile data off all together when you're not using it..(when travelling etc)... (far from ideal I know!).. but it might help.. I think that the 3G radio isn't sleeping properly.. the new software update which is due out anytime now MIGHT solve it.. but only if you're either on an unbranded handset (sound like you're not) or your carrier pushes the update through to you...
The other things you can try is to switch off "Search for updates automatically" in the phone settings... and switch of determine location by wireless networks (in the location settings menu)..
There was a thread about auto brightness causing constant cpu drain, leaving it autobrightness is thought to be battery kind`er.
Ive stopped using task managers and just use default android control and its good for my battery. I check the ram availability occasionaly and though it gets down to around 30 or 40 or meg it shows no slowdowns or hangups but I do reboot after charging every other night.
I'm experiencing similar behavior: poor, then good, then poor, then good again, of course with similar usage. I don't use any task killer and have 3G always on. I have tried 3 different batteries: the stock one, the one from my X1, and the 1800 mAh from Mugen: same pattern with every battery.
I definitely think that there's something bad in the design of the power circuitry and/or in the kernel.

Help? A few uncommon problems

Ok so I received my Vibrant on Monday and so far I am in love with it. Their are three things that bug me, however.
1. Battery Life is TERRIBLE. I know, I know-This has been discussed before but I did everything the other threads said and still no difference. On my phone, I will leave it on standby and it will drop 8 percent in like an hour and a half. Somethings wrong. Also, If I play the Sims for two hours (like I did today) my battery goes from 98% down to 45%. Is this normal?
Just to point out what I have going on with my phone:
- Brightness is turned down COMPLETELY. Automatic brightness is turned OFF.
- 3G is always on. Could this be the culprit?
- I have a completely black background.
- Last I checked, it said my display was taking up 60-70% of my battery usage.
- As stated above, Sims DRAINS my battery. Either somethings up with my phone or Samsung should have made sure the Sims doesnt kill the device.
2. The second I take my phone off the charger, the battery goes from 100% to 98%. Can I fix this? Its kind of annoying...
3. Problem with the Sims. Im not sure if any of you have this issue, but whenever I tell my Sim to watch TV, the app shuts down and takes me back to my home screen. Any idea why its happening?
alecjake said:
Ok so I received my Vibrant on Monday and so far I am in love with it. Their are three things that bug me, however.
1. Battery Life is TERRIBLE. I know, I know-This has been discussed before but I did everything the other threads said and still no difference. On my phone, I will leave it on standby and it will drop 8 percent in like an hour and a half. Somethings wrong. Also, If I play the Sims for two hours (like I did today) my battery goes from 98% down to 45%. Is this normal?
Just to point out what I have going on with my phone:
- Brightness is turned down COMPLETELY. Automatic brightness is turned OFF.
- 3G is always on. Could this be the culprit?
- I have a completely black background.
- Last I checked, it said my display was taking up 60-70% of my battery usage.
- As stated above, Sims DRAINS my battery. Either somethings up with my phone or Samsung should have made sure the Sims doesnt kill the device.
2. The second I take my phone off the charger, the battery goes from 100% to 98%. Can I fix this? Its kind of annoying...
3. Problem with the Sims. Im not sure if any of you have this issue, but whenever I tell my Sim to watch TV, the app shuts down and takes me back to my home screen. Any idea why its happening?
Click to expand...
Click to collapse
1. Leaving a phone in 3G all the time is not a good idea, if you have WiFi near you you can connect to I'd use WiFi instead, it has less battery drain then the antenna that is constantly searching for 3G signal - unless you are in the area with bulletproof 3G coverage of course.
2. It seems like this bug is common 100% jumps to 98% once you unplug the charger, are there really any accurate battery meters on the market?
3. Can't help you there, not playing the game on my phone.
HTH
lqaddict said:
1. Leaving a phone in 3G all the time is not a good idea, if you have WiFi near you you can connect to I'd use WiFi instead, it has less battery drain then the antenna that is constantly searching for 3G signal - unless you are in the area with bulletproof 3G coverage of course.
2. It seems like this bug is common 100% jumps to 98% once you unplug the charger, are there really any accurate battery meters on the market?
3. Can't help you there, not playing the game on my phone.
HTH
Click to expand...
Click to collapse
alright thanks. im in phoenix here so i am almost always in a 3G area. I guess i'll leave it on since i rarely dont have 3G
I also read on multiple forums including HoFo that 3G generally consumes more energy then WiFi.
sims 3 fix
so my girlfriend was complaining about sims crashing when she watched tv or relaxed on the couch. i fixed this by moving both the sims launcher app and the sims game app to data/app.
I normally use Edge simply because I don't need Wifi or 3G on unless I'm doing some heavy data transferring.
Currently I'm at 61% battery, which means my phone has been off the charger for 16hours. Its not a fluke either because its just normal use for me. I normally take my phone off the charger at 6am and I plug it back in around 11pm.
Prolonged GPS, Wifi and 3G will eat your battery. I'm not saying don't use the services, but you give up one for the other. I personally like to have awesome battery usage until I'm out and about and really need to use my phone.
I'd recommend you call T-Mobile customer service and have them diagnose the problems you are having and issue a replacement if necessary.
Based on my experience, battery life is excellent, probably the best I've seen in any smartphone in this category. Battery usually last easily through the day with heavy use, including:
- having 3G on all the time (and frequently switching to edge and back)
- 2 email accounts using push (gmail and exchange)
- gps on all the time
- google latitude running all the time
- facebook and twitter sync'ing every hour
- fancy widget sync'ing every two hours
- Newsroom harvesting 12 news sites in the background
- occasional picture (3 or 4) a day
- web browsing and searching
- xda app for reading and replying to this forum.
- bluetooth is always on
- wifi is on from 8 pm on.
I charge the phone through the night, unplug it at 8 am, return home at 8 pm and put it to charge around 11 pm, with still 50%. Brightness is set to auto. Phone is not rooted or modified in any way.
You bought a high end phone that should perform as such. You are supposed to get the most out of your phone, not turn off its features. I wouldn't listen to those who claim you should turn off everything and dim the screen. What's next, not using the phone to preserve batteries?
That's just my two cents.
Sent from my SGH-T959 using XDA App

Ok I'm jealous

As I'm looking through the threads I'm seeing people getting terrific battery life. What can I do to get better battery life besides all the little tricks like cutting of gps, syncing, and back light etc? As I stated in another post I run the tunein app for 2hrs and my phone is at 20% HELP!!!
Stop using tunein/find alternative? I'm not exactly sure what the application does but I'm sure there has to be another application that offers similar functionality in the market, that might be easier on the battery.
powered by the tears of a million orphaned alpacas...
I've tried a alternative. I've tried the app for the actual radio station still get the same thing.
I use Tunein Radio since it's one of my favorites apps and have no issues whatsoever ... I mean it's normal the battery usage since it's streaming media.
Turning off the 4g made the biggest difference for me.
I'm usually near wifi, and with that on all day I SOMETIMES end up w/ <60% battery at the end of the day.
So just kick a man while he's down why don't ya!!!
Try this:
1. Do a full reset
2. Fully charge the phone. Once light is green, Let it stay unplugged for a couple of seconds, turn off the phone and plug in again. When light turns green again (may take up to an hour). Repeat until the green light appears almost instantly. This may take anywhere from 4-10 cycles.
3. Run the phone stock for one complete cycle. Don't add any apps.
4. If you have no problems, charge the phone then try adding one app then let the battery cycle again.
5. Keep adding an app after each cycle and monitor your battery consumption.
This way you can find out if the issue is your phone or the app. I know this isn't a quick fix, but it will help you dial in on the problem. I had similar problems as you before going through these steps. One of my cycles only got 2 hours of life before dying. I now get 15 hours of medium to heavy usage consistently! I am currently at 15 hours 5 minutes with 32%.
why dont you stop using apps to "fix" your battery and use the internal battery monitor program to narrow down exactly whats causing your battery drain?
settings>about phone>battery>battery usage
keeps a running tab on whats been using your battery since last unplugged.
if its cell standby, that usually means you are in a place that doesnt have service too long.
display is just screen being turned on.
android system is basically stuff installed in android. such as email, surfing the web, the market, etc etc.
see what that tells you. dont cover up the problem. get down to its roots. my phone completely stock got medium usage and lasted almost 9-10 hours.
Good points, newkidd. Finding the root cause is critical. However, I'd like to add that just because Display or Cell Standby is the top battery user at any given point in time is not necessarily a bad thing.
For example, if you were to unplug your phone in the morning but then forget it on the kitchen table when you leave the house for the day (No, I've never done that!), you'd see that Cell Standby was the top battery user for the day. But that's expected with a properly running phone that sat all day with 0 usage.
On the other hand, if you did nothing on your phone all day but turn it on every 5 minutes to check the time and then turned it back off, then Display would be the top battery user. Doesn't mean there's something wrong with the display or settings. At least not if your battery still lasts a full day. It just means the display was on a lot.
However, if your battery is down to 20% after only 2 hours, something is definitely wrong. Tunein is a streaming audio app, right? When you use it, are you in a good 3G (or 4G) coverage area? If the phone is having difficulty keeping a strong data signal then a streaming service could definitely eat up more battery than normal. How long does your battery last when you don't use Tunein? Or have you tried using it while connected via wifi instead of cellular data?
I'm starting to come to the conclusion I'm in a bad coverage area when at work. I left my at home today by accident and it was still almost full battery. I haven't tried using wi-fi.
Poor reception kills your battery QUICK. My house has horrible reception and for the week I was battling the cable company over our internet (no wifi) my phone would only last a few hours. Last weekend when I was home most of the day, so using maybe 85% wifi, my battery lasted the 18.5hrs until I went to bed. And I'm a heavy user. 3 gmail accounts synced, screen at near max brightness and lots of screen on and data use.
^ Shift Faced
my work
My work as well has horrible reception. We run a lot of electronics and are next to the airport, all bad for cell signals.
I try to stream music, but it is a crap shot depending on the day.
I have an audiobook that I listened to all day, with no significant additional drain. However streaming music gets me about three or four hours.
I work in the middle of Houston, TX, so I should be covered by excellent 3G and 4G signal. But at my desk in a corner office, windows on 2 sides of me, on the 6th floor of a 20 floor building, I get intermittent 3G and have never gotten a 4G connection.
Although that's better than when I was on the 20th floor for about a year. My desk was right against the windows but I couldn't even get a cell signal, much less 3G (no 4G at the time). I had to put my phone on airplane mode when I got to the office or the battery would die before lunch just from trying to get a cell signal. I could change the settings to force roaming only and calls/texts would work OK, but still drained the battery quickly.
Fortunately, we have wifi at the office so I connect to that every morning now and everything works fine. It's just annoying that I can't get 4G at all. Can't get it at home either (in a house, right by the window), even though the Sprint coverage map shows that I should. I can zoom in to my address and it's in the dark blue (best available) coverage area that should mean I can get a 4G signal inside buildings - "You will be able to use 4G data inside most buildings, in a car, and outside." Nope. Not unless I stand outside.
Back on topic, a poor signal will eat the battery for lunch...
no 4G at all here
I am annoyed that there is no 4G in Phoenix at all. 4th or 5th largest city in the country, (depending on the study), and we get snubbed.
Thanks a lot Sprint
Exactly! Where's our 4G in Phoenix. I remember reading about some test market thing with the valley, Clearwire and Sprint about running WiMax and nothing ever came of it. Oh well, guess we just have to be patient.
My battery life is great on my shift. Still stock, having issues getting root through my laptop, but I usually get a whole day out of my battery. For the first time I'm actually impressed with android battery life.
Sent from my Shift using Tapatalk
I'm trying out some things today for battery life, will post with results tomorrow
Problem is Android Market makes it way too easy to download a crap ton of of apps to the point that your phone slows to a crawl. We live in an always connected world, but this also means we need to be more aware of what and whom we interact with. Be careful out there kiddies.

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