Real world battery test - unbelievably good - Nexus One General

Hi, I have been decorating my small bathroom today and I have had my N1 sat on a shelf busily streaming music from last.fm over a wifi connection.
I had the volume up full and was listening for a good 7 hours. The battery was at 95% when I started listening and I expected the phone to shut down by mid afternoon but it didn't.
At about 6.30pm I finished decorating (for the day!) and looked at the battery guage. It showed 64%. I couldn't believe it!
Battery use is shown as 26% cell standby (good 3G connection all day), phone idle 23%, mediaserver 2%, and wifi was just 10%.
I always thought wifi was a battery drainer but apparently not on the N1

i get steady drain when indoors @ the office where i only get Edge no 3G. Is the battery drain as bad when searching for 3G as it is searching for a signal in general?
aj

To my knowledge the screen uses the most battery (other than voice calling). So if you were not using either of them it should last you a long time.

andythefan said:
To my knowledge the screen uses the most battery (other than voice calling). So if you were not using either of them it should last you a long time.
Click to expand...
Click to collapse
Yea the brightness of the screen is to blame for most rapid battery drains.

I've found that forcing 2G when indoors is the best way to go (unless you still generally have solid 3G).
If you are in a solid 3G area, then just force 3G...
This gives you a much more stable network connection and means the phone doesn't have to work as hard, switching between EDGE and HSDPA.

gsvnet said:
I've found that forcing 2G when indoors is the best way to go (unless you still generally have solid 3G).
If you are in a solid 3G area, then just force 3G...
This gives you a much more stable network connection and means the phone doesn't have two work as hard, switching between EDGE and HSDPA.
Click to expand...
Click to collapse
how do you force a 2G connection?
aj
edit: network settings. got it.

ghostrida said:
how do you force a 2G connection?
aj
edit: network settings. got it.
Click to expand...
Click to collapse
Go to settings > wireless & networks > mobile networks and select only use 2g networks.
Edit: Nvm you ninja edited on me lol

gadgetgaz said:
I always thought wifi was a battery drainer but apparently not on the N1
Click to expand...
Click to collapse
FWIW, the specs on the Google page list 6.5 hours browsing the web on Wifi vs. 5 hours for 3G so it is at least better than 3G.
Also, streaming FM probably runs the Wifi in bursts with some buffering rather than continuously, wouldn't it?

Also, streaming FM probably runs the Wifi in bursts with some buffering rather than continuously, wouldn't it?
Click to expand...
Click to collapse
I'm sure you're right but the wifi radio is switched on all the time even if it just accessed data in bursts.

gadgetgaz said:
I'm sure you're right but the wifi radio is switched on all the time even if it just accessed data in bursts.
Click to expand...
Click to collapse
If it supports the WMM extension along with the router then it can request some low power support for maintaining the signal which drastically reduces the power needed when not actually sending/receiving data. It was created for things like WMA (which this phone doesn't have), but can be used more generally.

Last time I checked the screen display only used 4% at about half brightness ( maybe I'm wrong but I checked with bettercut shortcut )

ghostrida said:
i get steady drain when indoors @ the office where i only get Edge no 3G. Is the battery drain as bad when searching for 3G as it is searching for a signal in general?
aj
Click to expand...
Click to collapse
Your phone uses a lot of battery when searching for signal. Enabling Edge only should make that stop. My phone fluctuates at work because I'm in a big building so I just connect to the wifi and leave it.

I too am extremely satisfied with the battery life, for as fast as the phone is I wouldn't expect so much. I'm amazed, seeing it with such a small battery, this phone sips power.

just as a note, have had the 2800mah battery now for the recommended 5 full charges...phone has been on for 3 days now and is at 40%...crazy

nmeofdst8 said:
just as a note, have had the 2800mah battery now for the recommended 5 full charges...phone has been on for 3 days now and is at 40%...crazy
Click to expand...
Click to collapse
Nice! How does the extended back affect your use?

wow, just 31% after 7 hours!!
I lose 10% just getting to work (1 hour) with very limited usage and edge only.

britoso said:
wow, just 31% after 7 hours!!
I lose 10% just getting to work (1 hour) with very limited usage and edge only.
Click to expand...
Click to collapse
bouncing between edge and 3g drains the battery also.

Related

Switching Wireless Networks

How can I set my phone up so that When I am at home or the office it uses WiFi, and if I am aay it automaticly switches over to medianet? I hate having to constantly switch the network.
if you have wifi on and leave wifi coverage it will always log onto edge if you have it set to gprs always on.
but then you dont want to have wifi on all the time; unless you want your phone to be dead in like 3 hours. When you are out of wifi coverage the wifi radio is still searching for connections so the battery still drains fast.
zeuzinn said:
but then you dont want to have wifi on all the time; unless you want your phone to be dead in like 3 hours. When you are out of wifi coverage the wifi radio is still searching for connections so the battery still drains fast.
Click to expand...
Click to collapse
You're exaggerating a bit -- I leave WiFi and BT on and go 3-4 days between charges. In my experience it's the phone function that drains the battery fastest.
3waygeek said:
zeuzinn said:
but then you dont want to have wifi on all the time; unless you want your phone to be dead in like 3 hours. When you are out of wifi coverage the wifi radio is still searching for connections so the battery still drains fast.
Click to expand...
Click to collapse
You're exaggerating a bit -- I leave WiFi and BT on and go 3-4 days between charges. In my experience it's the phone function that drains the battery fastest.
Click to expand...
Click to collapse
Yeah, you are actually right... It just hit me that , unlike GPRS, wifi gets completely disabled when the device is on stand-by and gets back when its woken up.
That being said, I still support the idea that the battery would be drained in about 3-5 hours if the phone didn't go into sleep mode.

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.
Click to expand...
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 constantly drop 10+% every night irregardless whichever rom installed

my battery is dropping like mad recently, no matter which rom I use, JVK JPG JPK, all the roms that is known for good battery life, with various kind of modems.2G network taskilled everything before sleep, no gallery bug, no background data updates, not connected to wifi BT GPS, battery stat wiped, more than 3 times full cycle charge..I have done everything I could, the battery still drop like mad.I fully charge the device at 12am, took off the charger, the battery is 88% when its 8am..checked the batter use, cell standby 40+%, display 20+, phone idle 20+..no more and when I slide the menu, for nothing, just slide for fun, scroll the app drawer, see the apps flying, it drops another 1%..lol
I had no idea what is happening, maybe the battery is dead? but I checked the batter health it says good..should I buy a new battery or what
p.s.I had only 1-2% drop everynight back in a month time, but now... ... ... Is this some kind of hardware failure or battery's dead?
12% for 8 hrs is NOT that bad. I get around 1.6% drop per hr with Wi-Fi ON and push notifications.
Anyways, See if you have a Time without Signal entry under Cell standby. Keeping a phone in a low/no service area can drain the battery faster.
You should recalibrate the battery after each rom flash. I think there is an App somewhere in the forum which is really easy to use.
Sent from my GT-I9000 using XDA App
PhoenixFx said:
12% for 8 hrs is NOT that bad. I get around 1.6% drop per hr with Wi-Fi ON and push notifications.
Anyways, See if you have a Time without Signal entry under Cell standby. Keeping a phone in a low/no service area can drain the battery faster.
Click to expand...
Click to collapse
but the thing is I had only 1% drop using the same apps same setting last time.the battery drop like mad recently and idk why =(
johnsonxray said:
but the thing is I had only 1% drop using the same apps same setting last time.the battery drop like mad recently and idk why =(
Click to expand...
Click to collapse
Did you check for Time without Signal ? Maybe cellular reception in your area has deteriorated.
time without signal 0
PhoenixFx said:
Did you check for Time without Signal ? Maybe cellular reception in your area has deteriorated.
Click to expand...
Click to collapse
Or maybe just general poor reception in your bedroom? When I'm in school (a nice plain concrete building to prevent young software developers from ever finding joy in life) I have 1-2 bars of edge reception and my phone loses with data off around 1.5%/h.
Either that or your battery has lost capacity and you can fix the issue by buying a new one. My bet is on the reception.
nah not possible..I placed the device on the same spot everyday..back in a month time it constantly dropped 1-2% but now 10+%..its not about the signal or reception or what I guess..it may be due to the frequent flashings recently..anyway I just ordered a new battery..see if it works =(
theduckking said:
Or maybe just general poor reception in your bedroom? When I'm in school (a nice plain concrete building to prevent young software developers from ever finding joy in life) I have 1-2 bars of edge reception and my phone loses with data off around 1.5%/h.
Click to expand...
Click to collapse
I second that. In my basement lab at university, ~1 bar EDGE reception, 1.5%/h is not untypical
Is it searching for WiFi connections that is what used to drain mine when sleeping .
jje
JJEgan said:
Is it searching for WiFi connections that is what used to drain mine when sleeping .
jje
Click to expand...
Click to collapse
everything's off =)
Hold down your power button. Set data network mode to disabled.
I was getting 10-15% battery drain over 8 hrs of stand by with data network mode enabled.
Now with data network mode disabled (when I need it I just switch it on again) I get 1-2% drain for the same time period.
Sent from my GT-I9000 using XDA Premium App
Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.
BlackMY01 said:
Hold down your power button. Set data network mode to disabled.
I was getting 10-15% battery drain over 8 hrs of stand by with data network mode enabled.
Now with data network mode disabled (when I need it I just switch it on again) I get 1-2% drain for the same time period.
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
no way..I don even have APN list how to have data network lol
PhoenixFx said:
Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.
Click to expand...
Click to collapse
well if its not about 2G/3G/WiFi/BT or GPS then what could possibly be the problem?
running apps or worn out battery
PhoenixFx said:
Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.
Click to expand...
Click to collapse
What is the point in buying a smartphone, if needs turning off everything?
I suppose your custom ROM is a wipe install
10% battery drain overnight seems to be fine. If you use background data and auto sync, keep on Wifi because that will do the job quickly.
Widgets are notorious battery drains, esp weather widgets. Remove all type of widgets from display. Change sync interval for facebook/twitter to 3, 6, 12 hrs etc... from 15min, 30 min.
Check sync interval for apps like Pulse, buzzbox, weather apps
Just a thought.. how about letting your phone completely discharge. When restarted, immediately flash to stock rom, allow that to completely discharge, repeat process several times (3 ideally) then load your custom rom of choice.
If it sounds absurd, I agree. It really does! However just remember, electromagnetic charge carries resonance memory, much like xrays. This old school trick is not often related to modern batteries, but have found it to increase battery life with several Android devices.
The main things are screen brightness and running apps. Your problem sound's quite normal even. Considered a secondary battery?
I think it is fine because if I use wifi (i.e. browsing XDA forum), it use ~8% for HALF an hour.
Anyway why don't just shut it down when you are asleep?
Sent from my GT-I9000 using XDA App
tt0204 said:
I think it is fine because if I use wifi (i.e. browsing XDA forum), it use ~8% for HALF an hour.
Anyway why don't just shut it down when you are asleep?
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
your battery dropped because you on wifi, at least, the thing is, I din even connect to BT wifi GPS, no task running in the background(taskilled before sleep) and it still drops 10+%..jus imagine if I had my wifi on overnight

Battey drain due to radio?

Hey, I am trying to figure out why my battery drain is so high. Part of it is the display (trying to work on that too) but I see that my "phone signal" is quite bad. I have a feeling that this is draining my battery.
I have attached my battery stats. Do they look normal. And does the phone signal look normal or below normal. I think it is worth noting that I almost always have 4 bars of signal so I am not sure whats going on. I use my phone in Canada on the fido/rogers network (i believe it is the same as At&t in the states). Is there another radio I can flash or something if this is not normal (which will still work with my phone/network)?
Thanks a lot
Reports are that using 3G a lot drains the battery immensly.
Try switching to use 2G only and see how that affects your battery life.
Greetz
frutelaken said:
Reports are that using 3G a lot drains the battery immensly.
Try switching to use 2G only and see how that affects your battery life.
Greetz
Click to expand...
Click to collapse
I dont think it is worth it to pay $30 a month to use 2g networks. I will try to turn off the 3g radio when on wifi though. And maybe only turn on 3g when i need it. As for the phone signal bar. Is it the same or worse than what you guys are getting?
asb123 said:
I dont think it is worth it to pay $30 a month to use 2g networks. I will try to turn off the 3g radio when on wifi though. And maybe only turn on 3g when i need it. As for the phone signal bar. Is it the same or worse than what you guys are getting?
Click to expand...
Click to collapse
It already works this way. Wifi is going to be your best bet to lessen drain if available (both in standby and when using data - just make sure you have the sleep policy set to never).
If you have poor signal you are going to murder your battery - no way around it. The radio will boost power (Gain is adjusted automatically) in an attempt to get a better signal - and constantly search for a better one. So if you are bouncing between no service and 1 bar or even with just a weak 1 bar signal you are going to see atrocious battery life. There's not much you can do there except potentially switch to SIP in those times if you use a SIP provider.
If you are sitting with 4 bars then you should be seeing decidedly better battery life. What is the actual time the display was on in that screenshot?
I use 3G and its fine. What radio are you using?
the choices are: JK8, KB1, KB3, KD1
you can find them on the dev forums
asb123 said:
Hey, I am trying to figure out why my battery drain is so high. Part of it is the display (trying to work on that too) but I see that my "phone signal" is quite bad. I have a feeling that this is draining my battery.
I have attached my battery stats. Do they look normal. And does the phone signal look normal or below normal. I think it is worth noting that I almost always have 4 bars of signal so I am not sure whats going on. I use my phone in Canada on the fido/rogers network (i believe it is the same as At&t in the states). Is there another radio I can flash or something if this is not normal (which will still work with my phone/network)?
Thanks a lot
Click to expand...
Click to collapse
that looks pretty normal for that kind of usage. id say that you were a moderately heavy to heavy user.
krohnjw said:
It already works this way. Wifi is going to be your best bet to lessen drain if available (both in standby and when using data - just make sure you have the sleep policy set to never).
If you have poor signal you are going to murder your battery - no way around it. The radio will boost power (Gain is adjusted automatically) in an attempt to get a better signal - and constantly search for a better one. So if you are bouncing between no service and 1 bar or even with just a weak 1 bar signal you are going to see atrocious battery life. There's not much you can do there except potentially switch to SIP in those times if you use a SIP provider.
If you are sitting with 4 bars then you should be seeing decidedly better battery life. What is the actual time the display was on in that screenshot?
Click to expand...
Click to collapse
I usually have about 3-4 bars. The time on for the display was probably just over 2 hours (judging from what it is now).
zephiK said:
I use 3G and its fine. What radio are you using?
the choices are: JK8, KB1, KB3, KD1
you can find them on the dev forums
Click to expand...
Click to collapse
I have KD1, how does that stack up?
also, I am using netarchy bfs kernel if that matters.
simms22 said:
that looks pretty normal for that kind of usage. id say that you were a moderately heavy to heavy user.
Click to expand...
Click to collapse
I agree. you're a pretty heavy user So far different radio doesn't drain battery, but only the difference of data connection speed cap.
window7 said:
I agree. you're a pretty heavy user So far different radio doesn't drain battery, but only the difference of data connection speed cap.
Click to expand...
Click to collapse
Yes I do love android (been tinkering around since the g1). I do realize that I am a heavier user than the average person but it might also be that I recently got this phone so I am using it more.
Aside from that, does everything else seem normal?
"Android System" should not be taking such a high %. It should be about 1-2%.
There is (was?) a bug that causes high cpu usage (and shows as Android System) when wifi is on, but not connected to a network.
Another thing I can think of and is something I've experienced, is that sometimes you get an IP address from the mobile network that has a lot of noise, that is, it's an address someone has likely used p2p programs with and there are lots of connection retries. You can see it because the green arrows don't stay dark for more than a couple of seconds, and it kills your battery quite fast. Reconnecting to get a different IP address is the only solution...
Also, bluetooth may be a factor...
spamlucal said:
"Android System" should not be taking such a high %. It should be about 1-2%.
There is (was?) a bug that causes high cpu usage (and shows as Android System) when wifi is on, but not connected to a network.
Another thing I can think of and is something I've experienced, is that sometimes you get an IP address from the mobile network that has a lot of noise, that is, it's an address someone has likely used p2p programs with and there are lots of connection retries. You can see it because the green arrows don't stay dark for more than a couple of seconds, and it kills your battery quite fast. Reconnecting to get a different IP address is the only solution...
Also, bluetooth may be a factor...
Click to expand...
Click to collapse
Blutooth is always off unless I need to use it (which is rare). I am not sure how to make my mobile network connect to a different IP adresse, would turning it on and off do the trick?
Being in area where there is low/no signal also causes my battery drain to increase by a lot! Which sucks cos where i live i get either 1 or no bars of signal.

Categories

Resources