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battery drained

is there any way it can help my tilt from preventing battery drained..it was fulled charged at 11 pm (only instant message was still running but no messages), woke up at 9am and theres only 53% battery left. i barely listening to music but when i do it killed faster.

changing radio can change the rate of battery drain

What type of Messaging were you running? What program? Some keep a continual data connection & if you're in 3G territory that can easily account for that battery drain.

I used to leave HSDPA on and auto check email every 10 mins, my battery only last more than a day even without any phone call in this time. I was then disabled the 3G + HSDPA, just leave the GSM on (changed this in the phone's band), my battery now last about 4 days and still have some power.
Your data connection kills your battery severely, this may be what caused your battery drain 50% over night.

my 3G is always on. I have internet and everything. does 3G interfering my internet connection?

u can get very good battery life when 3G service is deactivated.
also make sure disable wifi, make sure when not in use no application will auto on the wifi...
make sure device lock is set to lock all buttons.

seanv said:
I used to leave HSDPA on and auto check email every 10 mins, my battery only last more than a day even without any phone call in this time. I was then disabled the 3G + HSDPA, just leave the GSM on (changed this in the phone's band), my battery now last about 4 days and still have some power.
Your data connection kills your battery severely, this may be what caused your battery drain 50% over night.
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what does HSDPA do? i turned off 3G already. i pay unlimited monthly internet so are those things that i turned off interfering anything from it? i Disable HSDPA already and my internet still connecting. sorry for many questions but im pretty new at this tilt.

Just make sure the icon and or mobile operator name has no 3G indication. Yes u still can get connected via internet, which is through your GPRS, which online activates when as you wish. 3G is passive mode whereas GPRS is dynamic.

3g vs 2G battery life - way too varied

I have a ATT type Nexus One (not Tmobile), unrooted, with latest froyo.
The life of the battery in 3G mode vs. 2 G mode is astonishing...pretty ridiculous.
I'm searching but can someone tell me if there's been any fixes or advancements in regard to this problem?
When at home I use wifi as much as possible. I leave it on 2G but really, I can't take the slow speeds of 2G, but 3G setting is suuuuuuch a drain on the battery that it seems unreal.
i've had nokia's and more in 3G, my wifes iphone is 3G... and all of them had nearly more than double the battery life.
I hate the voice quality of 2G, I'd love to be able to just leave at 3G, but it's merely hours before it's nearly drained set on 3G. it's got to be a problem (and one that hopefully can be fixed).
Why would 3G setting be sucking THAT much power (decent-strong signals too here)?
Love my nexus1 and I'll live I guess but this problem...it's a bit much.
Any news on this issue, or other things I can consider or change/try to help this? (3G)
thanks

Set your WiFi sleep policy to NEVER. Even thought you're using WiFi at home, whe nthe screen goes off the WiFi shut off and 3G kick in.
Menu>Settings>WiFi settings>Menu>Advance>WiFi sleep policy>Never.

baseballfanz said:
Set your WiFi sleep policy to NEVER. Even thought you're using WiFi at home, whe nthe screen goes off the WiFi shut off and 3G kick in.
Menu>Settings>WiFi settings>Menu>Advance>WiFi sleep policy>Never.
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Click to collapse
Oh very sorry, I should have said I did set this to never and saved changes.
In fact, I think I've set it 1000x now btw, over some time it STILL always disconnects from wifi (might be router disconnecting though, perhaps I should set an IP manually to solve this??).
GPS and BT are always turned off until needed as well (used very rarely anyways btw).
But when I'm away from home for example, I turn wifi off and test the difference2G vs. 3G and the difference is waaaaay too much, 3G just CHEWS at the battery no matter strong signal or medium.
I find it hard to believe 3G really has to eat up that much battery when set compared to 2G on a Nexus. A little bit to nominal ...sure, but not like this (say like 4-6 hours if i left it 3G for a day with little usage).
What's really happening here? Nothing from google/HTC on this matter?

Heh, i get just the opposite... out in the farmland of west toledo, im getting 2G but typically GPRS and that rapes my battery where as 3G i could go on standby for days if i didnt touch it...
What radio are you running? if your phone is constantly looking for a signal then that may be your problem...

I have the same issue on 3g. Home on WiFi is ok but when I go out during the day on 3g it just kills my battery.
The reason is because android OS keeps the data session open at all times where other OS's close it down when not in use. It's just the nature of how they designed android.
As a test, one day turn off your data connection but stay on 3g and see how good your battery life is. This is how some other OS's work normally.
It's a trade off we have to make for being always connected on android.
For example voice actions need to reach out to Google's servers to work. So in the interest of speed of having to open the data session each time, the OS just keeps data open on hand at all times. But that kills battery quicker.
That's what I've found anyway.

JHaste said:
Heh, i get just the opposite... out in the farmland of west toledo, im getting 2G but typically GPRS and that rapes my battery where as 3G i could go on standby for days if i didnt touch it...
What radio are you running? if your phone is constantly looking for a signal then that may be your problem...
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Click to collapse
That's because the phone is always on the lookout for a 3G signal, if you know you aren't going to get one, just set it to 2G only and your battery life will massively improve.

power consumption of 3G vs. WiFi

Hey all,
assume that I have 3G flatrate with no extra cost. I wonder myself, if WiFi or 3G consumes more power of my battery? If WiFi would consume more power, than I would switch to permanently use 3G also at home.
Hope to get some helpful answers from the pro's here.
Thanx

3G, by far.

3g>wifi>2g
Sent from my DROID3 using XDA

Sloop said:
I wonder myself, if WiFi or 3G consumes more power of my battery?
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Click to collapse
3G consumes more power of your battery than WiFi.

thanks to all. So I will keep WiFi enabled at home

It depends on CDMA or GSM. CDMA is pretty battery efficient and IMO Rev. A EVDO is the best for battery. If you have a strong 3G signal where you live and get good speeds then you may get better life than wifi, but that is rare. More than likely wifi will be better. Now on GSM 3g will be worse but EDGE will be amazing.
Sent from my XT862 using XDA

MrObvious said:
It depends on CDMA or GSM. CDMA is pretty battery efficient and IMO Rev. A EVDO is the best for battery. If you have a strong 3G signal where you live and get good speeds then you may get better life than wifi, but that is rare. More than likely wifi will be better. Now on GSM 3g will be worse but EDGE will be amazing.
Sent from my XT862 using XDA
Click to expand...
Click to collapse
Right on. Signal strength is the real key. If your phone is constantly polling on 3G to get a signal lock, it'll drain the battery quickly. With a decent signal, it doesn't drain as fast. Same goes for Wi-fi. With a good signal, definitely better if you're downloading a lot of data as it takes much less time. However, if you're out of range or at the edge of it, it struggles to keep a signal lock and wastes battery. So, if you're at home just lounging around, have a strong 3G signal and aren't downloading much, it's best to go with 3G. If you have a bad signal, or download a bunch, go for Wi-fi. It's more just a balancing act than anything to get the best battery life. Also, make sure the wifi is turned off when you're not connected, or it will be constantly searching for a connection which also will lead to battery drain.

linuxgator said:
Right on. Signal strength is the real key. If your phone is constantly polling on 3G to get a signal lock, it'll drain the battery quickly. With a decent signal, it doesn't drain as fast. Same goes for Wi-fi. With a good signal, definitely better if you're downloading a lot of data as it takes much less time. However, if you're out of range or at the edge of it, it struggles to keep a signal lock and wastes battery. So, if you're at home just lounging around, have a strong 3G signal and aren't downloading much, it's best to go with 3G. If you have a bad signal, or download a bunch, go for Wi-fi. It's more just a balancing act than anything to get the best battery life. Also, make sure the wifi is turned off when you're not connected, or it will be constantly searching for a connection which also will lead to battery drain.
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Nah, not in my experience. I live in an area which is well-blanketed with EVDO 3G, I literally have never been anywhere in the normal course of work or home that has less than 4 bars and 3G lock. Also, my house is covered with wifi, not as thoroughly but plenty to maintain a connection wherever I am in the house, and full signal in the rooms where I spend the most time for sure. Also, until recently, I had wifi at work, they just locked me out of it in fact (because they're facists).
In my experience, I always get FAR BETTER battery life using wifi over 3G as much as possible, even though I have great 3G signal strength 100% of the time and not-so-great wifi coverage. It seems like that wasn't the case with other smartphones I've owned in this same situation, with both Verizon and AT&T in the same locations and with roughly the same coverage (much worse with AT&T, though, of course.) But, with this Droid 3 running the stock ROM rooted, just a few apps like IM and BluetoothDUN frozen, with great 3G and less-great wifi coverage, I always get much better battery life from a day of being connected to wifi versus a day being connected to 3G.
Now, I manage my wifi switching very well too, though; I use Timeriffic to turn mine on and off every work day on a schedule, meaning it's never searching for wifi networks unless I'm geographically in a place where I know there is one I have the connection credentials for. If I left it on searching (and not connected to) wifi all day, I'm sure I'd get a battery life hit, which if I wasn't paying attention like I do would look like wifi eating the battery.
Ciao!

You may have a good wifi router. Mine sucks so that may make a difference. We have a Motorola SBG900 modem and I am always losing signal.
Sent from my XT862 using XDA

What uses more battery: Wifi or mobile data?

I usually turn of my mobile data, and connect to just wifi when there a network available.
What consumes more battery? If speed is not an issue.
Thanks
Sent from my GT-N7000 using XDA

I had a Samsung Epic 4G (the first line of Galaxy S) and on that, wifi consumed less battery than data, but on the Note, I am experience the opposite.

I find that wifi drains my battery faster.
If I disable wifi and am connected to 3G, the battery lasts longer.

If you use wifi to surf net, battery time will last longer. If you use data mobile like Hspa, you can see the battery drain very fast. (6 months of monitor with this)
Sent from my GT-N7000 using XDA

WIFI always use less battery the radio doesnt have to do much work since the router is within a close range.... mobile radio does much more work and consume mote battery than wifi...

Wifi power usage depending of type of wifi (2.4G or 5G), router settings and signal.
2.4G is less then 5G type. This is because more power will need for higher freq.
Router setting will give impact on your connected device to your router. Go to the wifi advance router setting and set optimal for speed and less power usage wifi setting such as Beacon Interval, RTS/CTS Threshold,Fragmentation Threshold, DTIM. And last great signal great battery life.

2g or wifi

I wonder what is the connection that uses more battery, 2g or wifi.
I only use the internet to update the app lockmix, then the 2g enough for me, but I was wondering which spends more battery if it is 2g or wifi

2G uses very little power in the background, but it's very slow so transferring much data over it will use a lot of power because the radio will need to be on constantly.
WiFi uses a significant amount of power even on standby - that's why WP8 defaults to turning WiFi off when the screen is off - but it's probably worth using when available if your only other option is 2G.
BTW, are you sure you meant 2G? That's archaic; 3G has pretty much entirely replaced it and 4G is become more and more common.

I only use the internet on your phone to update the lockmix application (for screen lock), the 2g is enough. I have to have an active connection, my doubt is on wifi or 2g due to battery consumption. my wifi router this to 2/3 meters away and have speed of 30 mb.

But obviously, battery drain's on 2G network, & no issue about Wi-Fi distances, but it also drain's down when background searching & attempt to connect to the network at multiple times.