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i just got my nexus, digged around, updated to cyanogen, rooted.
i have a problem that on my old touch hd i didnt have:
the data connection is always on?? doesnt android know to close it when not in use so it will save battery charge?
thank you
on the nexus one it works a little different, it shows the 3G icon but that does not necessarily mean its doing anything. only when you see the two up/down arrows lighting up and flashing is there 3G data activity going on.
i guessed that, but, it keeps the data connection open? even without transfer it still uses power, doesn't it?
it is always connected in a way, all it does is ping the cell tower every 10 minutes to have an established point on reference. this by its self does not draw to much from the battery as you would expect, only when data is requested does the radio kick in to full power, so no worries that it will drain your battery. The thing that will kill your battery the fastest is that beautiful screen. try to bump it to 60% thats i nice brightness but yet saves on battery. also keep in mind the battery needs to go through 2 or 3 battery charge cycles for you to get the most out of your battery life.
average real world battery life should get you about a day and a half of bettery.
cobrax2 said:
i guessed that, but, it keeps the data connection open? even without transfer it still uses power, doesn't it?
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Click to collapse
This is how all modern smartphones work nowadays. They all keep the connections "on" 100% of the time.
It's funny because I asked this question a few years ago
The answer I got was that it actually uses MORE battery to turn the connection on and off all the time manually, than to just let it sit idle.
Also, the N1 is useless without a data connection
i see. then ill just let it open and search for an app that will tell me which app uses the most bandwidth. i only found some that tell me the total usage, not by application...
So my battery time isn't horrible but why the heck is cell standby using 40% when time without signal is only 3%?! Doesn't make any sense.. anyway of resolving this?
I'm seeing the same thing, in fact most of the time 'cell standby' is on the top of my battery usage chart. I suspect some of this is because I live in a relatively weak sprint signal area, its shouting pretty loud to get to the tower.
Every once in a while the phone will boot and have service, but time without signal will show 98-100%, I haven't figured this problem out yet (and yes I've done the GSM/CDMA switch in the test menu).
If you don't want your phone to go into standby, use it more.
abcdfv said:
If you don't want your phone to go into standby, use it more.
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Click to collapse
BAAAHHHAHAHAHAHAHA
Good one
Look guys, the battery usage is always going to total between 99% and 101%
This is not an indication of how much or fast your battery is being used, it is a reflection of how the amount of battery used IS BEING USED
Like adcdfv said, and he's absolutely right, if you want to see your cell standby percentage decrease then make more phone calls.
But there's no reason to do that.
Thank you, Thank you.
lawl.
I've done a lot of reading on this and everyone seems to say that Cell Standby has nothing to do with phone use. I use my phone all day to text and randomly use it to browse. Either way my phone is "in use" more or less all day.
And I did that same "fix" in the Test menu that Fird spoke of. I do not live in an area with a weak signal, either. Most of the time I'm getting 3+ bars..
D3FAULT said:
lawl.
I've done a lot of reading on this and everyone seems to say that Cell Standby has nothing to do with phone use. I use my phone all day to text and randomly use it to browse. Either way my phone is "in use" more or less all day.
And I did that same "fix" in the Test menu that Fird spoke of. I do not live in an area with a weak signal, either. Most of the time I'm getting 3+ bars..
Click to expand...
Click to collapse
Having a high cell standby is good. It means that the radio is going to sleep properly. It's the Time Without Signal that you'd want to worry about, but with the latest ROMs it's no longer an issue.
I know this is an old thread and it's for a diffrent phone model, but i've been searching the web for the last hour and this thread is the closest one i've found to what i'm experiencing. I have an LG optimus one phone using knzo's Void Forever(2.3.4 based on CM) and the cell standby battery usege is 37% with only 1% time without signal. Can anybody tell me why this is happening?
did you read the previous posts?
Yes i did, and i don't think it's normal to have a high battery usage if TWS is 1%.
Raca_teo said:
Yes i did, and i don't think it's normal to have a high battery usage if TWS is 1%.
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Click to collapse
What that means is cell standby is 40% or so TOTAL. It will always add up to around 100% no matter what. Your phone is fine.
I know this was an issue an issue in the past for older phones. With the recent high tech phone/smartphones/battery, I am just wondering if this is still an issue today.
The reason I am asking, I experimented and let my HD7 stand still without using it with the wi-fi on then and wi-fi off for almost a day for both and appears that I have the same battery remaining. I wish I could see the percentage use but looking at the icon itself appears the same to me.
Any other thoughts?
So, a pretty nifty thing about this phone/OS, is when the screen turns off, it automatically kills the WiFi. When you turn it back on, it connects again.
This is how they're able to conserve battery life. The only downside, is if you were downloading say a big game, via WiFi, and the screen times out, WiFi dies and so does your download unfortunately. I was able to get the download to resume once, but usually not.
gasanpride said:
I know this was an issue an issue in the past for older phones. With the recent high tech phone/smartphones/battery, I am just wondering if this is still an issue today.
The reason I am asking, I experimented and let my HD7 stand still without using it with the wi-fi on then and wi-fi off for almost a day for both and appears that I have the same battery remaining. I wish I could see the percentage use but looking at the icon itself appears the same to me.
Any other thoughts?
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Click to collapse
i think wifi doesnt consume any battery at all when its "just connected", only when a upload or download is going on , you might find the difference...
sumedh_vsk said:
i think wifi doesnt consume any battery at all when its "just connected", only when a upload or download is going on , you might find the difference...
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Click to collapse
No, you are wrong. Even stay disconnect, the Wifi Module will keep searching for the new wifi spot and it kills the battery a lot. Than why i usually switch my Wifi Off (both my HD7 and my old HD2) when i am not going to use it
For the first time with a smartphone I've been leaving the Wifi on all the time, since it doesnt seem to really impact the battery that much. I'd only turn it off if I know I'm going to be a day or two out of Wifi coverage, just to save me having to grab a charger.
With my TD2, having Wifi on all the time not only shagged the battery but also slowed down the UI and made the phone hot as hell.
With Android I would have to keep my Wifi off because it would kill my battery but on my HD7 I leave my Wifi AND bluetooth on all day and I still get pretty good battery life. I only charge once at the end of the day.
the wireless radios, bluetooth & wifi, are so much more polished and refined as compared to the those in WM5/6. With WM, used to flash new radios posted on xda to acheive better reception/power consumption performance. WP7 does it right out of the box...
btw, you can set 'notify when new networks found' to off. If not needed by you, probably save some juice.
cheers
HD7 hw0002
aquanaut88 said:
the wireless radios, bluetooth & wifi, are so much more polished and refined as compared to the those in WM5/6. With WM, used to flash new radios posted on xda to acheive better reception/power consumption performance. WP7 does it right out of the box...
btw, you can set 'notify when new networks found' to off. If not needed by you, probably save some juice.
cheers
HD7 hw0002
Click to expand...
Click to collapse
I believe the only thing that changes is that it doesn't tell you when it finds new networks, but it's still always on and searching. So it shouldn't make much of a battery difference on or off.
That being said, this is the first phone where I have left Wi-Fi on at all times and I get awesome battery life. Actually, my battery period has just been great. No complaints about how long the phone lasts. Much more than any Android or Windows Mobile phones I've used in the past.
Ok. so iam on darkys rom 9.3, used wipe and ever since my battery life has been bad since.
Take today for example,i pulled my phone off charge at 7isham listend to music for about 45mins, had possibly 3 hours of sporadic internet usage 3g/hsdpa, always turning off the 3g after usage. At about 130pm i had to switch to my 2nd battery.
this is a typical day for me, so its preeeety frustrating.
anyone have any ideas why or similar experiance and can share some wisdom?
cheers!
The first time you use the phone after a flash, the battery will be bad. A couple things to note:
Did you flash with 100% battery? A lot of people say this is necessary.
Did you calibrate it yet? When you do a new flash, use the phone until it is dead. Charge it without turning it on. When the battery is 100%, go into recovery and wipe the battery stats. Then use the phone again until it dies. After that normal charging patterns.
Some people say that they get better battery life with certain kernels, and whether or not you have lagfixes. I use speedmod and I'm getting great battery life.
Check all of these and see if anything helps.
Try this thread as it has a lot of helpful tips.
http://forum.xda-developers.com/showthread.php?t=884816
Clue your rom if you did not have battery drain before .
jje
First think: have you installed any programs that need constant internet connection, like skype or facebook? To check whether this is a possibility check battery history, when cell standby is absurdly high even though the screen was on some time it's a good indicator something is constantly downloading (That only works if you used your phone since unplug, I have 72% for cell standby because I never turned the screen on since I charged it: )
If you ruled that out check whether your modem is appropriate for your region.
After that you should wait and let the phone run down to very low percentage or even let it turn off itself. I don't believe in wiping the battery stats, the battery will calibrate itself with every charging cycle. just let it drop under 10-20% and then charge fully. That helps me.
If the drain does not get better after 2-3days fully charge your phone and reflash the rom with the kernel
I've got the exact same problem with my girlfriends SGS. I got her this phone because it is a bit smaller and lighter than my desire HD, and it supposedly has better battery life....but at the moment I'm not seeing it.
Her phone seems to go at 30-80mAh at sleep, whereas mine will be under 5. She doesn't have any apps that I don't, and I can't figure what is causing the drain based on the running apps.
Sent from my Desire HD using XDA Premium App
theduckking said:
First think: have you installed any programs that need constant internet connection, like skype or facebook? To check whether this is a possibility check battery history, when cell standby is absurdly high even though the screen was on some time it's a good indicator something is constantly downloading (That only works if you used your phone since unplug, I have 72% for cell standby because I never turned the screen on since I charged it: )
If you ruled that out check whether your modem is appropriate for your region.
After that you should wait and let the phone run down to very low percentage or even let it turn off itself. I don't believe in wiping the battery stats, the battery will calibrate itself with every charging cycle. just let it drop under 10-20% and then charge fully. That helps me.
If the drain does not get better after 2-3days fully charge your phone and reflash the rom with the kernel
Click to expand...
Click to collapse
How do you know if the modem is appropriate for your region? I've been dying to find that answer, searched several places but no luck. How do you pick a modem. I have an international GT-I9000 but live in north america.
Thanks
hotshot333 said:
How do you know if the modem is appropriate for your region? I've been dying to find that answer, searched several places but no luck. How do you pick a modem. I have an international GT-I9000 but live in north america.
Thanks
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=9579987&postcount=11945
On the first link there was a tip to make wifi sleep when the screens off, I did this an noticed a major change in my standby(screen off) battery life, it dropped 1% in like 6 hours rather than like nearly 10% Nisha, which I was noticing before.
Sent from my GT-I9000 using XDA App
theduckking said:
http://forum.xda-developers.com/showpost.php?p=9579987&postcount=11945
Click to expand...
Click to collapse
I know, I read that post many times, but it's misleading, the country listed for each modem is just where the reporter tested out, not by any means comprehensively listing all the countries in which that modem would work well
Sent from my GT-I9000 using XDA App
Hi, need some help,
I got this phone a couple of days back, its an unlocked one. Battery on the phone seems to be draining faster than i expected it to. The first time i charged it, it took 3 hours in the afternoon. By night it was 20% this was after playing games and downloading through wifi, so it seemed ok. I then put it for charge overnight. The next day it still seemed to drained by 7pm only used whats app this day, so i had to put for charge again.
Once fully charged (2 hrs) I shut off wifi, bluetooth, nfc and others. Switched off smart stay options and the display is set to lowest brightness (not auto). The wallpapers is also black so it will not drain battery. Overnight without the phone being used (only thing i set was alarm) the charge went from 89% to 78%. During the day I also find the charge still dropping pretty rapidly. I have included the screen shot of the battery from the same day. Between the first pictures there is no difference in use and still drops by 3% in 20 mins or so.
Is this a problem with the battery or is that how it is?
(Stock, no changes to rom)
Not sure if this is your specific problem - but one thing I've found that kills this phone fast is bad 4G cell reception. By default the phone runs as LTE/GSM/WCDMA (Auto) in Settings->Mobile Networks . If you are in a location with patchy (or none at all) 4G Coverage, the phone wastes an inordinate amount of juice switching to high-power mode on the cell radio searching for the elusive 4G/LTE ... Just like a 3G phone will deplete its battery extremly fast in a location with no/poor 3G connectivity (inside the 'secure' datacentres I wander into occasionally that have cell blockers, I can deplete the battery in a phone in about 3 hours just due to it constantly switching to high-power 'cell search' mode as it has no details on any cells to 'hand off' to....)
The difference is palpable... inside my office, if I have the phone on the right side of my desk closest to some windows, it will receive 'patchy' 4G and I'll go through about 60% battery over about 8-10 hours with intermittent phone use (most of the battery goes to screen time as I'm a 'fiddler' whenever I leave my desk for a coffee/break/etc...) If I place it on the left side of my desk, where the reception is much worse, it'll fall back to 3G and I'll go through about 80% battery doing nothing different...
I'm now in the habit of switching the phone to WCDMA Only when I'm going to be working in the bowels of the building, as there aint no hope of 4G there...Doing this drastically improves battery life.. Likewise if I'm stuck at home over the weekend, I leave it on WCDMA, as where I live has very patchy 4G as well and I only get it if I walk outside and down the street...
Just a possible reason for the excessive drain... at least worth trying anyway... *shrug*
adr6ian said:
Not sure if this is your specific problem - but one thing I've found that kills this phone fast is bad 4G cell reception. By default the phone runs as LTE/GSM/WCDMA (Auto) in Settings->Mobile Networks . If you are in a location with patchy (or none at all) 4G Coverage, the phone wastes an inordinate amount of juice switching to high-power mode on the cell radio searching for the elusive 4G/LTE ... Just like a 3G phone will deplete its battery extremly fast in a location with no/poor 3G connectivity (inside the 'secure' datacentres I wander into occasionally that have cell blockers, I can deplete the battery in a phone in about 3 hours just due to it constantly switching to high-power 'cell search' mode as it has no details on any cells to 'hand off' to....)
The difference is palpable... inside my office, if I have the phone on the right side of my desk closest to some windows, it will receive 'patchy' 4G and I'll go through about 60% battery over about 8-10 hours with intermittent phone use (most of the battery goes to screen time as I'm a 'fiddler' whenever I leave my desk for a coffee/break/etc...) If I place it on the left side of my desk, where the reception is much worse, it'll fall back to 3G and I'll go through about 80% battery doing nothing different...
I'm now in the habit of switching the phone to WCDMA Only when I'm going to be working in the bowels of the building, as there aint no hope of 4G there...Doing this drastically improves battery life.. Likewise if I'm stuck at home over the weekend, I leave it on WCDMA, as where I live has very patchy 4G as well and I only get it if I walk outside and down the street...
Just a possible reason for the excessive drain... at least worth trying anyway... *shrug*
Click to expand...
Click to collapse
Hi thanks for the reply. My phone does not show WCDMA in settings. It just has 2g/3g/4g/ auto OR 3g in network modes under mobile networks.
varun.k said:
Hi thanks for the reply. My phone does not show WCDMA in settings. It just has 2g/3g/4g/ auto OR 3g in network modes under mobile networks.
Click to expand...
Click to collapse
I have used an app called "Radio Switcher" to activate "gsm auto (prl)", when i open the app it seems to go into "Device info". It seems to work but "Network mode" does not seem to change.
I have uploaded the screenshots
Seems as though the system is using more battery than the screen itself.
The system seems to really take up way too much battery power. Mine is at 4%.
What are your sync settings? Especially for things like Weather, stocks, news etc. If you set them to sync every hour or so, your phone will keep running on the 3G network which will end up draining your battery.
Also, switch off motion. It's a cool feature, but it's not necessary. Same with auto-rotate.
Finally, use WiFi instead of 3G where possible. That saves battery too.
If you're rooted, download noFrills CPU control and reduce your max clock frequency on days where you won't get a charge. Phone runs well enough on 800mhz, but has a tendency to keep going at 1.4Ghz for no reason.
Otherwise, get a higher capacity battery
Snowstormzzz said:
The system seems to really take up way too much battery power. Mine is at 4%.
What are your sync settings? Especially for things like Weather, stocks, news etc. If you set them to sync every hour or so, your phone will keep running on the 3G network which will end up draining your battery.
Also, switch off motion. It's a cool feature, but it's not necessary. Same with auto-rotate.
Finally, use WiFi instead of 3G where possible. That saves battery too.
If you're rooted, download noFrills CPU control and reduce your max clock frequency on days where you won't get a charge. Phone runs well enough on 800mhz, but has a tendency to keep going at 1.4Ghz for no reason.
Otherwise, get a higher capacity battery
Click to expand...
Click to collapse
My sync is off, plus i have disabled sync for everything individuality and disabled all unwanted apps. Data service is also off, only use wi-fi. under motion only smart call is on and auto rotate us off.
I have uploaded a screen shot off after ti disable all these apps.(went to bed with 35% and was 28% in the mornin, turned wifi off before)
Will upgrading (official) phone to android 4.1.2 help (current ver is 4.1.1)? Current base band version is i9305BVALI5 i got an update on kies to i9305BVALI3. I don't think this is update to 4.1.2 is it?
I have updated to 4.1.2, and applied only gsm setting in mobile network. All apps are still disabled as before. The system still seems to be suing most amount of battery, more than the screen. I do not know what is using the system.
I have stared having the same problem a couple of days ago. Though I have sync enabled 0-24 for 3 gmail accounts, motions are on, screen auto rotate is also on. I am using nova launcher, almost all Samsung apps are frozen and most of time I am on wifi.
Now, this drain has nothing to do with the stuff I just mentioned (Enabled sync, motions...). I have all that things enabled all the time, and yes MPU and GPU are OC to 1600 and 640 MHz. But I was always getting >= 24h with ~3,5 h of screen on time. As I already mentioned, problem started a couple of days ago. Only thing which comes to my mind is that I have played with freezing / defrosting apps and I probably installed a couple of apps too. Like Beautiful Widgets and that's my main candidate to blame for this at the moment.
Though I am still not sure... Better than battery stats didn't show anything what could help. Network location locator or similar is at the top of the list of partial wake locks. But the time it hold the lock (About 25 min.) can't be the reason for such a high drain.
I have switched to HD Widgets, what I was using before (With this app one can disable auto location.) removed Beautiful Widgets, and turned off'Use wireless networks' and GPS in location services hoping it will help... So we'll see...
For me it still shows that adroid system and cell standby time is using a lot battery.
I don't get why android system and OS is using so much battery, everything is disabled. Network is on only GSM setting and i have network all the time, why is that also high? Does someone else also have the same problem?
If possible, install Better Battery Stats, maybe it will help you to identify the problem... In my case it is not of much use at the moment.
Sent from my GT-I9305 using xda premium
Strange idea: download an anti-virus and let it run.
Might as well give it a shot now, especially since AV is free.
Snowstormzzz said:
Strange idea: download an anti-virus and let it run.
Might as well give it a shot now, especially since AV is free.
Click to expand...
Click to collapse
I was using AVG, but i removed it thinking it could drain battery.
Sv: Battery Drain On s3 i19305
varun.k said:
I was using AVG, but i removed it thinking it could drain battery.
Click to expand...
Click to collapse
I think he meant that it could be a virus that drains all the battery.
Sent from my GT-I9305 using xda app-developers app
sebbe312 said:
I think he meant that it could be a virus that drains all the battery.
Sent from my GT-I9305 using xda app-developers app
Click to expand...
Click to collapse
I did an upgrade using odin to 4.1.2, the issue still remains though. The screen shots i posted is with the update.
So any virus should also be wiped out right?
varun.k said:
I did an upgrade using odin to 4.1.2, the issue still remains though. The screen shots i posted is with the update.
So any virus should also be wiped out right?
Click to expand...
Click to collapse
Anyways i tried it, does not seem to work though.
!crazy said:
If possible, install Better Battery Stats, maybe it will help you to identify the problem... In my case it is not of much use at the moment.
Sent from my GT-I9305 using xda premium
Click to expand...
Click to collapse
I have installed better battery stats, and it says that battery drain is 6% an hour at idle. I have attached the screen shots. I do not have root access to access some of its functions though.