"Android System" draining battery - Epic 4G General

installed EF02... I pull it off the charge around 6:30am...by 11am with casual texting...its down to 20%.. without doing any except moving around screens...it's 8:30am and my battery is at 72%..something is not right...
settings -> about phone -> battery use
shows that my andriod system is at 80%
anyone else have the same stats? hows your battery life?

jackal424 said:
installed EF02... I pull it off the charge around 6:30am...by 11am with casual texting...its down to 20%.. without doing any except moving around screens...it's 8:30am and my battery is at 72%..something is on right...
settings -> about phone -> battery use
shows that my andriod system is at 80%
anyone else have the same stats? hows your battery life?
Click to expand...
Click to collapse
did you calibrate? wipe battery stats?
android system is supposed to take power from the battery... that's what the battery is there for.

algorhythm said:
did you calibrate? wipe battery stats?
android system is supposed to take power from the battery... that's what the battery is there for.
Click to expand...
Click to collapse
its not a calibration issue...however I have done that before.
is your phone reading the same?
the android battery stats is reporting that android system's running apps are using 80% of the battery...

jackal424 said:
its not a calibration issue...however I have done that before.
is your phone reading the same?
the android battery stats is reporting that android system's running apps are using 80% of the battery...
Click to expand...
Click to collapse
44%, full bar.

It's a relative statistic. If your screen were on more than it would take up a larger percentage of the power used, "Android System" is just a general name for things that aren't individually covered (display, cell standby etc.) and if the screen is off and you don't have terrible service it makes sense for most of the power to be used by the OS itself.

063_XOBX said:
It's a relative statistic. If your screen were on more than it would take up a larger percentage of the power used, "Android System" is just a general name for things that aren't individually covered (display, cell standby etc.) and if the screen is off and you don't have terrible service it makes sense for most of the power to be used by the OS itself.
Click to expand...
Click to collapse
make sense, but my battery drain is just ridiculous...wasn't this bad on froyo..

jackal424 said:
make sense, but my battery drain is just ridiculous...wasn't this bad on froyo..
Click to expand...
Click to collapse
It's not an official release, don't expect it to be perfect. It's perfectly normal for bugs to come up in leaks.

yay a problem I don't have..
I pulled my phone off the charter at 9am, just checked it at 11am and still 100% battery LOL.. I haven't touched it, but doing the same on froyo would have dropped the battery to around 80% by this time regardless.
what services are you running? I've found that trillian is an awful battery hog for example, so I keep it closed unless I actually need it.

It's a reporting issue. Not sure if it's epic or GB but display is NOT right. You can have display on all the time and it will still be 3%. My guess is display reports as android system.

I think reason it drains so fast is that there is a bunch of diagnostic programs which are running. (I think they run these programs in test builds to check for problems). If you select Android System you'll see a list of them. I had the same problem with my battery draining really quickly (went back to EC05).

I've been having issues sometimes where my phone stays awake all the time even with the screen off seemingly nothing running. It wouldn't go back to normal without a reboot.
I just reflashed the EF02 modem yesterday and have not had the problem reoccur yet.
Sent from my SPH-D700 using XDA App

I had horrible battery life my first day and half with the AA i3 rom, because I had kept the EC05 modem (which always performed well for me). Flashed EF02 (and OTAed to EF10) and now get completely ridiculous battery life.

to get the best battery life install setcpu and set it for 200-800 on conservative.. my battery life is much better at that setting

Related

Wifi the biggest battery killer?

So I notice that an hour on wifi surfing the web took about 20% or more of thE battery...even playing game doesn't do that to the battery. Anyone experiencing similar thing? Anyone with 3g, is data looking the battery too?
Just keeping wifi turned on is also drains the battery for me.
Check your screen luminosity.it is the biggest battery killer
I'm running the Moto234_eVo_Carbon_V0.3 build and I've noticed that even with the screen off and the phone idle my battery drains at a pretty good rate when compared to WinMo. Any fixes for this?
for me 3g/h draw much power than wifi, almost 1.5x-2x of the wifi surfing..
Screen brightness is easily the biggest batter drain keep brightness as low as possible,
Data connection will hog more than WiFi if you are in an area of weak signal and your device is constantly searching for a signal, when your at home or work using WiFi just turn data off and switch to only 2g networks, set setcpu to screen off 245 245
Sent from my hd2 desire
Screen brightness definitely hits it hard, then wifi and bluetooth, keep em off whenever you are not using them and of course apps running in the background, grab a task killer, if its not needed, it shouldnt be running or else it will use power.
Joe Viterbo said:
I'm running the Moto234_eVo_Carbon_V0.3 build and I've noticed that even with the screen off and the phone idle my battery drains at a pretty good rate when compared to WinMo. Any fixes for this?
Click to expand...
Click to collapse
Get "current widget" from the market to see how much powers are being used. While screen off, my phone only drain about 4~7 mA...
I just came across this. Super detailed analysis of battery usage.
http://ertos.nicta.com.au/publications/papers/Carroll_Heiser_10.pdf
Sent from my HTC HD2
3g draws much more power than wifi. If wifi is available use it over 3g. But like others have said, the screen is by far the biggest battery hog.
anap40 said:
3g draws much more power than wifi. If wifi is available use it over 3g. But like others have said, the screen is by far the biggest battery hog.
Click to expand...
Click to collapse
I don't see how the screen is the biggest energy hog. When I leave my phone uncharged untouched over night and it it displays 7mah on current widget, I lose 40% battery in 7 hours.
jas0nw0ng said:
I don't see how the screen is the biggest energy hog. When I leave my phone uncharged untouched over night and it it displays 7mah on current widget, I lose 40% battery in 7 hours.
Click to expand...
Click to collapse
That's unusual...i lose less than 10% over night...even with bad reception in my room, that didn't kill my battery. Maybe you can try this to test it out. Fully charge before you go to sleep. The next morning, check your battery in setting to see what is using the majority of the battery drain during that period...this might help you find the reason...
If noting else is running, Cell standby will eat the majority of the battery power.
For me, its Angry Birds...it the biggest battey killer
Mafioso said:
For me, its Angry Birds...it the biggest battey killer
Click to expand...
Click to collapse
If you are talking about playing Angry Bird 24/7, then I understand you...but if you are serious, I haven't seen heavy battery drain while playing Angry Bird...but whose got time to check the battery stats while smashing them pigss...
anap40 said:
3g draws much more power than wifi. If wifi is available use it over 3g. But like others have said, the screen is by far the biggest battery hog.
Click to expand...
Click to collapse
You need to reinstall new build and do a task29 and format your SD your battery stats are all over at 7mA you should see 1% per hour
Sent from my hd2 desire
whynot66 said:
You need to reinstall new build and do a task29 and format your SD your battery stats are all over at 7mA you should see 1% per hour
Sent from my hd2 desire
Click to expand...
Click to collapse
Yes thats true, exactly the same in my HD2: 3-7mA = 1% an hour or less
Wow, I installed Mdeejay_eVo_Sense_v_2.3Revolution to see if this build helped on battery life. I charged my phone over night and had a full battery at 11AM (according to the meter) but by 7:30PM, my phone was completely dead. During this time, I had two 5 minute phone conversations and used GPS for 9 minutes. Other than that, the screen was not active and I didn't have WiFi enabled. Is this typical? Doesn't make running Android very practical on the HD2. This is only the second build I've tried but it's not looking very promising.
Joe Viterbo said:
Wow, I installed Mdeejay_eVo_Sense_v_2.3Revolution to see if this build helped on battery life. I charged my phone over night and had a full battery at 11AM (according to the meter) but by 7:30PM, my phone was completely dead. During this time, I had two 5 minute phone conversations and used GPS for 9 minutes. Other than that, the screen was not active and I didn't have WiFi enabled. Is this typical? Doesn't make running Android very practical on the HD2. This is only the second build I've tried but it's not looking very promising.
Click to expand...
Click to collapse
Something is wrong with your build. Try his newer build. They got a new kernel. If that were my habits, my battery would drop by only about 25%. You should install "current widget" from the market. It help you keep track of battery usage. On standby, most people and I got about 3~7mA. If you get a higher mA, that mean something is eating your battery.
Please give Mdj's New Build "Froyo Sense Revolution 1.6" that comes with his new kernel which is suppose to make battery last longer. Hope this helps.
azzzz said:
So I notice that an hour on wifi surfing the web took about 20% or more of thE battery...even playing game doesn't do that to the battery. Anyone experiencing similar thing? Anyone with 3g, is data looking the battery too?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=9276656#post9276656
i hope this enlightens you and yes wifi kills battery but it is not the biggest battery killer and wifi is more harmful to your battery life if it is not connected which means it is constantly searching for a network which sucks the life out of your battery.
I think the wifi modules on the new kernels (Hastarin > 8 & MDJ) are consuming too much power.
I usually got 5 ~ 8 mA in sleeping mode with my wifi turning on on the previous kernels, but now I got 8~60 mA and the battery status is showing that wifi is taking about 30% of the battery. Maybe this is because the 802.1n is enabled by default!

Unique Battery problem

Sorry to start another thread on battery issues but I was unable to find a scenario like mine.
Hey everybody, Im new to the android scene, just got my vibrant less than a month ago. Before that I had an Iphone 3g. So far I like the phone but the battery life is horrible. When I surf the internet on wifi or 3g I noticed that I use like 3-5% in a matter of 5 mins. Is this normal? I consider myself to be a light-moderate user and have been getting and average of 12 hours or so on my vibrant. Also if it makes any difference when my phone is idle or being used my temperature runs around the high 80's low 90's but when being charged it drops to the low 80's or high 70's. What is going on? How can I get more 20 hours on my phone? With the iphone I used to get an easy 15 hours and still have like 40-50% remaining.
aamir123 said:
Sorry to start another thread on battery issues but I was unable to find a scenario like mine.
Hey everybody, Im new to the android scene, just got my vibrant less than a month ago. Before that I had an Iphone 3g. So far I like the phone but the battery life is horrible. When I surf the internet on wifi or 3g I noticed that I use like 3-5% in a matter of 5 mins. Is this normal? I consider myself to be a light-moderate user and have been getting and average of 12 hours or so on my vibrant. Also if it makes any difference when my phone is idle or being used my temperature runs around the high 80's low 90's but when being charged it drops to the low 80's or high 70's. What is going on? How can I get more 20 hours on my phone? With the iphone I used to get an easy 15 hours and still have like 40-50% remaining.
Click to expand...
Click to collapse
Try a different rom?
Sent from my SGH-T959 using XDA App
When I first got the vibrant, it had pretty bad battery life, I would lose like 25% while sleeping 8-10 hrs. So light usage would be like a day. Slowly I started to get longer battery life (2 days on light usage). Recently I could get up to like 3.5 days on real light usage. After updating to JI6, max I can get now is like 3 days. I didn't really do much and I tripled my battery life by just giving it time.
Thanks burntrat I guess ill be patient. And I must mention that I am running stock.i was just worried because my battery temperature gets colder when charging and warmer when idle or running.
burntrat said:
When I first got the vibrant, it had pretty bad battery life, I would lose like 25% while sleeping 8-10 hrs. So light usage would be like a day. Slowly I started to get longer battery life (2 days on light usage). Recently I could get up to like 3.5 days on real light usage. After updating to JI6, max I can get now is like 3 days. I didn't really do much and I tripled my battery life by just giving it time.
Click to expand...
Click to collapse
Hey burntrat or anybody, has your battery ever acted sort of schizophrenic on you? I mean one day I leave it on standby and its drains like 1% in 7-10 hours another day I leave it on standby and it drains 18% in about 4 hours. Whats going on?
aamir123 said:
Hey burntrat or anybody, has your battery ever acted sort of schizophrenic on you? I mean one day I leave it on standby and its drains like 1% in 7-10 hours another day I leave it on standby and it drains 18% in about 4 hours. Whats going on?
Click to expand...
Click to collapse
It happens
If ur super concerned get these 2 apps
~juice defender
~ super power
My battery has been draining inconsistently lately. It drains faster in the 50-100% level. Under 50%, it feels like it drains slower while doing the same stuff.
xriderx66 said:
It happens
If ur super concerned get these 2 apps
~juice defender
~ super power[/QUOTE
Juice defender doesnt work for me, but ill have to try superpower, anyways I just feel that its weird that without anything changing, my battery drains differently on different days. Burntrat I think thats normal for every phone, the last 50% always seem to drain slower.
Click to expand...
Click to collapse
if your phone is draining a lot during standby or sleeping. There may be a rogue app out there or an app that didnt shut down properly. (I guess that would mean a rogue app)
ELStiko said:
if your phone is draining a lot during standby or sleeping. There may be a rogue app out there or an app that didnt shut down properly. (I guess that would mean a rogue app)
Click to expand...
Click to collapse
nope task manager shows everything as clear, and if I have a rogue app why is it acting up one day and not the other? Btw it seems to skip a daybetween bad battery life
aamir123 said:
nope task manager shows everything as clear, and if I have a rogue app why is it acting up one day and not the other? Btw it seems to skip a daybetween bad battery life
Click to expand...
Click to collapse
I had the same problem, stock task manger doesn't show all of the apps.
Check ur services, go to settings apps manage apps running applications.
Or instead of that I brought the advanced task killer back to check on things
@aamir123 and burntrat: maybe you guys need to calibrate your battery? Also the stock rom usually has a lot of bloatware running in the background. Flashing a custom rom oughta do the trick.
Sent from my SGH-T959 using XDA App
chikin said:
@aamir123 and burntrat: maybe you guys need to calibrate your battery? Also the stock rom usually has a lot of bloatware running in the background. Flashing a custom rom oughta do the trick.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
How do you recalibrate the battery?
Sent from my SGH-T959 using XDA App
Try this. Download the system panel app from the market. You can set it to monitor your system and it will chart what applications are running and how much they are using the cpu. If you find you have some unnecessary bloatware running in the background download titanium backup and freeze those apps.
hitman818 said:
How do you recalibrate the battery?
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
There are a lot of different ways mentioned in different forums. Try this:
Let your battery drain all the way to the point when it turns off by itself.
Charge it while its off until its full.
Unplug it, turn the phone on, then plug it in again.
After it reaches 100, unplug the charger and turn your phone off.
Once off, plug it in and let the charging complete.
Once complete, unplug it and turn the phone on. When everything has loaded, turn the phone off (note: no charging involved in this step.)
After it turns off, charge it one last time until 100%. After this, go into recovery and clear battery info (or cache, I forget). There you go
Oh, and its better if you don't download too many apps that monitor battery usage, cpu etc. cuz they will contribute to the battery consumption.
Sent from my SGH-T959 using XDA App
chikin said:
There are a lot of different ways mentioned in different forums. Try this:
Let your battery drain all the way to the point when it turns off by itself.
Charge it while its off until its full.
Unplug it, turn the phone on, then plug it in again.
After it reaches 100, unplug the charger and turn your phone off.
Once off, plug it in and let the charging complete.
Once complete, unplug it and turn the phone on. When everything has loaded, turn the phone off (note: no charging involved in this step.)
After it turns off, charge it one last time until 100%. After this, go into recovery and clear battery info (or cache, I forget). There you go
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
It isn't a good idea to let your battery drain all the way to zero since it is lithium ion. I think skipping that part and just charging it when it's on to full, then off to full, then on to full, then off to full and then wiping battery stats would suffice. Also you need to have clockwork recovery to wipe battery stats.
jimmynguyen91 said:
It isn't a good idea to let your battery drain all the way to zero since it is lithium ion. I think skipping that part and just charging it when it's on to full, then off to full, then on to full, then off to full and then wiping battery stats would suffice. Also you need to have clockwork recovery to wipe battery stats.
Click to expand...
Click to collapse
When the phone turns off by itself, the battery still has some juice left in it to prevent it from losing the ability to charge, if that's what you meant by not a good idea cuz its lithium ion. If thats not what you meant, then please explain why.
Sent from my SGH-T959 using XDA App
burntrat said:
When I first got the vibrant, it had pretty bad battery life, I would lose like 25% while sleeping 8-10 hrs. So light usage would be like a day. Slowly I started to get longer battery life (2 days on light usage). Recently I could get up to like 3.5 days on real light usage. After updating to JI6, max I can get now is like 3 days. I didn't really do much and I tripled my battery life by just giving it time.
Click to expand...
Click to collapse
Agreed. In my case, I barely lasted 12 hours on moderate use with any of the JI6 2.1 ROMS (Eugene's, Bionix, Fusion, etc). I think after I updated to 2.2, all of the ROMS have been giving me 18+ hours on moderate-heavy use no matter what modem or kernel I use.
So where is the "unique" problem?
jimmynguyen91 said:
It isn't a good idea to let your battery drain all the way to zero since it is lithium ion. I think skipping that part and just charging it when it's on to full, then off to full, then on to full, then off to full and then wiping battery stats would suffice. Also you need to have clockwork recovery to wipe battery stats.
Click to expand...
Click to collapse
This is true.
Try this, it helPed, me get like 10 more hours.
Charge till 100.
Shut down
Plug in usb until the green battery shows up and says completed our something.
Reboot
Charge for5 minutes.
Reboot
Done.

Battery life sucks after Trigger 2.9.2 flash...

... and from what I'm reading, trigger gives great battery life. So how do I see what has been eating my battery life up? For instance, I unplugged 40 minutes ago and I am down to 91% already.
The regular option on the phone doesn't do a great job of troubleshooting this issue and just says "Display" and "Cell standby" as the relative battery use culprits. I figure, though, that this must be something I downloaded that is killing the battery. I love the ROM overall, but if this battery issue can't be resolved, I need to find something else quick. I'm a slave to a charge port.
Thanks.
bionik9 said:
... and from what I'm reading, trigger gives great battery life. So how do I see what has been eating my battery life up? For instance, I unplugged 40 minutes ago and I am down to 91% already.
The regular option on the phone doesn't do a great job of troubleshooting this issue and just says "Display" and "Cell standby" as the relative battery use culprits. I figure, though, that this must be something I downloaded that is killing the battery. I love the ROM overall, but if this battery issue can't be resolved, I need to find something else quick. I'm a slave to a charge port.
Thanks.
Click to expand...
Click to collapse
Have you tried conditioned your battery by wiping your battery stats.bin? Why didn't you flash the newest Trigger?
Yeah, you need multiple cycles for battery to be even close to accurate, and you should recalibrate.
Are you using other kernels or themes?
bionik9 said:
... and from what I'm reading, trigger gives great battery life. So how do I see what has been eating my battery life up? For instance, I unplugged 40 minutes ago and I am down to 91% already.
The regular option on the phone doesn't do a great job of troubleshooting this issue and just says "Display" and "Cell standby" as the relative battery use culprits. I figure, though, that this must be something I downloaded that is killing the battery. I love the ROM overall, but if this battery issue can't be resolved, I need to find something else quick. I'm a slave to a charge port.
Thanks.
Click to expand...
Click to collapse
Let your phone die wipe battery stats in recovery mode. charge to 100% then use the battery calibration app from the market and re-calibrate the battery. I always repeat the process. Sometimes when flashing new ROMs your batterystats.bin can get a little funky so I always do this after flashing a ROM and my battery works great.
Definitely check the Kernel and Modem your running if there not the ones that came with Trigger than that could be causing your problem as well.
From what i have got from prior experiences. Using odin to go to stock as if your phone just came out of the box and then flashing removes all the old files. When i did this i went from getting almost 10 hours... now my phone gets 17 normal and if i dont use it as much as a normal day it iwll hit 24 hours no problem.
madguitarist63 said:
Let your phone die wipe battery stats in recovery mode. charge to 100% then use the battery calibration app from the market and re-calibrate the battery. I always repeat the process. Sometimes when flashing new ROMs your batterystats.bin can get a little funky so I always do this after flashing a ROM and my battery works great.
Definitely check the Kernel and Modem your running if there not the ones that came with Trigger than that could be causing your problem as well.
Click to expand...
Click to collapse
This post (http://forum.xda-developers.com/showthread.php?t=806022) is saying to wipe battery stats at full charge... So what is it?
And why didn't I flash the newest version? It was when I flashed it.
What was the use in the 40 minutes after charge? I could see that if you had screen brightness high, and lots of wifi surfing or video use. I downloaded an app called 'screen filter' and it lets me lower the brightness lower than stock and I have noticed significant battery length increase since use. The stock dim options are not enough. Its still too bright and a waste of battery.
bionik9 said:
This post (http://forum.xda-developers.com/showthread.php?t=806022) is saying to wipe battery stats at full charge... So what is it?
And why didn't I flash the newest version? It was when I flashed it.
Click to expand...
Click to collapse
Both. I wipe mine at 0 and at 100 but once you wipe make sure you fully charge without interuption and vice-versa
Sent from my GT-I9000 using XDA Premium App
madguitarist63 said:
Both. I wipe mine at 0 and at 100 but once you wipe make sure you fully charge without interuption and vice-versa
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
same here, and i suggest you do the charging during night when your sleeping, so then there'll be no interruptions, like having to reboot for some odd reason etc. That can disturb the process of recalibration/conditioning.
robbham78 said:
What was the use in the 40 minutes after charge? I could see that if you had screen brightness high, and lots of wifi surfing or video use. I downloaded an app called 'screen filter' and it lets me lower the brightness lower than stock and I have noticed significant battery length increase since use. The stock dim options are not enough. Its still too bright and a waste of battery.
Click to expand...
Click to collapse
Pretty much nothing... Maybe looked at Facebook once and replied to a text?
So I drained it, wiped the battery stats, then looked at what it was doing - probably 1 minute after it was totally dead and wiped. The screen said it was at 14% already.
In less than a minute - 14%...
bionik9 said:
So I drained it, wiped the battery stats, then looked at what it was doing - probably 1 minute after it was totally dead and wiped. The screen said it was at 14% already.
In less than a minute - 14%...
Click to expand...
Click to collapse
Let it die again and wipe again. Your stats are off from the flash its normal. Just let completely die wipe charge wipe repeat. It will take a couple times normally to get back 100% right
Sent from my GT-I9000 using XDA Premium App
I used to chage my battery overnight with good results but since going to gingerbread it usually drops from 90-100% whne unplugging. was reading up and found out it's saftey feature created by Sammy.

"Phone idle" is top battery consumer

My phone is 1h30m out of the charges and at 78% battery level, out of those 68% is "phone idle". What is exactly "phone idle" and why it eats so much battery where name suggests on it's own that it shall not be using any battery since it's "idle"
artisticcheese said:
My phone is 1h30m out of the charges and at 78% battery level, out of those 68% is "phone idle". What is exactly "phone idle" and why it eats so much battery where name suggests on it's own that it shall not be using any battery since it's "idle"
Click to expand...
Click to collapse
I am having a similar issue. On 2.3.4 HKTW with Faux kernel, battery mod and Battery level fix. Phone Idle is draining the battery.
jiggytom said:
I am having a similar issue. On 2.3.4 HKTW with Faux kernel, battery mod and Battery level fix. Phone Idle is draining the battery.
Click to expand...
Click to collapse
Do you have a feeling this started happening after "battery fix"? I feel like it started happening since I install fix yesterday.
I had the same problem, both before and after the battery fix. I cant get my atrix to last 12 hours with light use before its crying to be charged. Just installed the battery fix and Ninja rom last night; ill give that a try and see how it goes.
Man guys, I'm just rooted, and running the latest stock rom, and I'm amazed at how awesome the battery life is. I can go for almost a day and a half. I do most of my rss feed reading on my phone, and I tend to go for hour long jogs with it strapped to my arm running gps.
Maybe my usage model has something to do with it. When I'm not running, I'm either at home or at work, where I connect to wifi. That might have something to do with my stellar battery performance.
i have the same problem it started yesterday well noticed it yesterday
i went with the new recovery and after a bad install of ninja
installed the new cherryblur I had a problem with the new recovery wipeing user data and had to reinstall after a wipe with fastboot. dont know what the problem is.
artisticcheese said:
My phone is 1h30m out of the charges and at 78% battery level, out of those 68% is "phone idle". What is exactly "phone idle" and why it eats so much battery where name suggests on it's own that it shall not be using any battery since it's "idle"
Click to expand...
Click to collapse
i had exactly the same issue with Kenn´s rom and Faux kernel...
after a week testing with everything i can tell you that the guilty was the Kernel.
Flash again the rom that you have been using but do not install that kernel.
Cheers!
jmgg2k said:
i had exactly the same issue with Kenn´s rom and Faux kernel...
after a week testing with everything i can tell you that the guilty was the Kernel.
Flash again the rom that you have been using but do not install that kernel.
Cheers!
Click to expand...
Click to collapse
sounds like a good place to start. ill give it a go!
edit: this mornig i set my set cpu profile to the lowest setting while screen is off ond just notices phone idle is down to 45%
ill post back if i have more data
The less you are physically using your phone, the higher the percentage of usage Phone Idle will have. Typically, for a normal user Phone Idle will ALWAYS be the highest usage.
Diviance said:
The less you are physically using your phone, the higher the percentage of usage Phone Idle will have. Typically, for a normal user Phone Idle will ALWAYS be the highest usage.
Click to expand...
Click to collapse
this is true. if your not using anything else to drain your battery something will always show up on the list. say you lost 20% of battery in 4 hrs. you have had it sleeping the whole time. well that list looks at what applications have been running so it builds a list on what took out the 20% so if you didnt do anything phone idle would have taken say 78% of the 20% of battery you lost. it doesnt mean its draining your battery more then normal. it means it was the only thing to drain the battery at all. followed by display, android system etc....
International user here with 2.3.4 ORANGEFR. After flashing edgan's kernel my battery issues are pretty much gone. I undervolted as much as I could. At 70% battery right now with 8 hours of moderate use.
Diviance said:
The less you are physically using your phone, the higher the percentage of usage Phone Idle will have. Typically, for a normal user Phone Idle will ALWAYS be the highest usage.
Click to expand...
Click to collapse
That's fine but the problem (see original post) that despite low usage I do have big battery drain and in this case "idle" is in fact appears to be eating 2/3 of it.
I'm in the orange already after little use today and i've only been unplugged for 6hours. I just flashed GB on friday.
Normally I would suggest installing the app Spare Parts to monitor which apps run the heaviest while the phone is supposed to be sleeping...however, on the Gingerbread ROMs, Spare Parts can't show you those stats anymore...very unfortunate.
but spare parts+ can
artisticcheese said:
That's fine but the problem (see original post) that despite low usage I do have big battery drain and in this case "idle" is in fact appears to be eating 2/3 of it.
Click to expand...
Click to collapse
you never post what android version you are using, im assuming HKTW on ATT atrix? i had the same problem with that build, its full of problems. dont bother installing apps to try to figure out what is draining your battery, its the build itself it is known to have battery issues. theres def a problem if the phone is using 22% on just 1.5h of idle. there's no fix for it. install either ken's gingerbread rom or one of the other roms based on ATT 2.3.4. theres no battery issues with those
neotekz said:
you never post what android version you are using, im assuming HKTW on ATT atrix? i had the same problem with that build, its full of problems. dont bother installing apps to try to figure out what is draining your battery, its the build itself it is known to have battery issues. theres def a problem if the phone is using 22% on just 1.5h of idle. there's no fix for it. install either ken's gingerbread rom or one of the other roms based on ATT 2.3.4. theres no battery issues with those
Click to expand...
Click to collapse
Well, no REAL battery issues. The meter still jumps around wildly unless you have the fix installed if you are using the 1% mod. So you can reboot and suddenly have 20-40% more battery than before.
artisticcheese said:
That's fine but the problem (see original post) that despite low usage I do have big battery drain and in this case "idle" is in fact appears to be eating 2/3 of it.
Click to expand...
Click to collapse
Have you done the battery fix for the GB ROMs? Without it, the drain is reported as being more than it really is.
Have you set up a more conservative profile under the battery management (or wherever the hell it is)?? With light usage, change your settings there to be less performance based, since you apparently don't need it.
And as previously stated...SOMETHING will use your battery. That will either be idle, or Angry Birds. If you aren't using apps, the browser, etc...then idle consumes battery. Use your phone more...or adjust your profile settings to be much more conservative (including turning data off after a shorter time period).
Diviance said:
Well, no REAL battery issues. The meter still jumps around wildly unless you have the fix installed if you are using the 1% mod. So you can reboot and suddenly have 20-40% more battery than before.
Click to expand...
Click to collapse
this is a very minor problem that doesnt effect battery life as in it doesnt shorten battery life. it jumps up after reboot but if you use it for a while it will jump back down on its own. there is also a fix that works so its not an issue anymore.
I'm using Kenneth ROM with default kernel. Idle is still top consumer ( more then screen for example). I did not do battery calibration but will do now but I don't think this will fix the issue.
Sent from my Atrix

Battery life been sucking...

I don't know if it's my imagination, but since the 2.4.6 update, my battery life has dropped a bit. By the time I get into my office from my morning commute, I'm anywhere in the 65-70% battery life after unplugging from a full charge. I haven't done anything new. I always unplug around 8:30 am when I head out, I do some light chatting with gf, browse some sites, check facebook (usually very briefly), and maybe sometimes do a little reading on my device. By the time I get into the office around 9:30 or 10 AM, I'm usually around the 80-85% area with battery.
Lately, doing the same thing, I'm seeing the aforementioned 65-70%.
Is anyone else experiencing decreased battery life since 2.3.6?
I'm on a Tmobile Nexus S, running stock 2.3.6 (no custom ROMs).
2.4.6 ? .... maybe 2.3.6 ... and yes, I also noticed a slight increase in power consuption after the upgrade. The stand-by is still great .. about 0.8 - 1% per hour.
Sorry, yes I meant 2.3.6.
Thanks for replying Ro_explorer. Is your increased power consumption significant? Seeing 65-70% when I'm used to seeing 80-85% as I get into my office, I find, is a large change. To be frank, the battery life of the Nexus S in general isn't so fantastic to begin with... this hit makes it worse.
Anyone else?
I used to get home with about 40-50% after a whole "normal day" (unplugged at 8AM, and getting back home at ~8PM) .. now (with the same average usage) I'm getting home with ~30-40% ... that why I said "slight increase" ...
Not your imagination, I too have noticed this. I hope the next update, will fix this - as I used to get pretty good battery life (even with over 250 apps).
When I recently updated to the 2.3.6, it caused a bug of continuous reboot (every 1-3 minutes), so I had to do a hard reset - now it works fine, but I only have added back about 15 apps - and the battery life sux!
Downgrade OS' it will be ok.
This is so weird. Why is the battery life worse?
onthecouchagain said:
Sorry, yes I meant 2.3.6.
Thanks for replying Ro_explorer. Is your increased power consumption significant? Seeing 65-70% when I'm used to seeing 80-85% as I get into my office, I find, is a large change. To be frank, the battery life of the Nexus S in general isn't so fantastic to begin with... this hit makes it worse.
Anyone else?
Click to expand...
Click to collapse
You want bad battery life? Try an Evo 4g with a Sense rom. I averaged about 6hrs using a 1500mAh battery, in stock form.
The nexus is pretty light on power consumption, if you ask me. I average 15hrs on the stock 2.3.7 rom/kernel combo, with stock battery.
Sent from my Nexus S 4G using XDA App
I'm on 2.3.6 and need to charge every two days. I text a lot and do light gaming. I'm typing this from my phone. Maybe you could drain the battery and wipe battery stats? I'm not even at 50% yet and I charged yesterday.
Sent from my Nexus S using Tapatalk
I also noticed that the battery last less time
I've been waiting to see if anybody else reporting this issue
i noticed a decent increase in battery life going to 2.3.7 and thought that previously the battery life had been fairly poor :\
I am non rooted, and get around 20 hrs on light to moderate use. Again. Stock, non rooted.
How do I recalibrate my battery? I wonder if it could be that...
There are many was to recalibrate. Some involve wiping batt stats, some plugging and unplugging phone several times after charge.
I have always found that using the battery almost all the way down, but not past 5%, and then full recharge conditions it very well.
Oh I've been here to solve the problem
"Why last 2 weeks my Nexus s drain battery so fast ? or I have to calibrate it"
Thank for your notice about update OS to 2.3.6.
I think that's a root cause for me too.
1. Could I rollback to 2.3.4 ,how?
2. Does battery calibration is useful for this case , how?( someone suggest to calibrate when flashing new rom )
Thank you very much..
i want to know who have some methods to do with this stuff
borrowedchief said:
There are many was to recalibrate. Some involve wiping batt stats, some plugging and unplugging phone several times after charge.
I have always found that using the battery almost all the way down, but not past 5%, and then full recharge conditions it very well.
Click to expand...
Click to collapse
Whenever switching roms, kernels, or batteries, i always perform the following :
1. Charge to a true 100% (Battery Monitor Widget will register +0 to +2 mA)
2. Wipe battery stats using recovery (Amon RA has this option for the Evo, not sure about cwm), Battery Monitor Widget, or a dedicated app.
3. Discharge battery to 0% with normal usage. When the phone shuts down, I pull and re-install the battery and power back up (it will shutdown again very quickly).
4. Recharge battery and be on my merry way.
Sent from my Nexus S 4G using XDA App
I found one workaround solution for this issue on
ww.google.com/support/forum/p/Google+Mobile/thread?tid=1684c50cea15282a&hl=en&fid=1684c50cea15282a0004af022e5ed212
Sproogle77 's solution
Problem solved. Using the OS Monitor app, I found that the main culprit was Google Services - the Contacts sync specifically. Even though I had this disabled (only Gmail was being allowed to sync) it was constantly working, apparently trying to fix a location. The message log showed that it was generating continuous debug messages, all about locations - around 10 of these every second.
I have solved the problem by disabling 'Use wireless networks' under the Locations & Security settings.'Use GPS satellites' is still running. This immediately dropped my CPU usage - which had been running around 30 to 40% even when otherwise idle, to around 10%. Google contacts sync is now using 0% of the CPU. The difference in battery life was pretty much immediate and is now back to what it was before - the change in the slope on the battery usage graph is remarkable!
This doesn't really seem like a solution to me, and I don't know whether other aspects of my functionality are being affected, but at least my phone is properly useable again.
I'm testing for 1 day and I think that's working for me.
onthecouchagain said:
This is so weird. Why is the battery life worse?
Click to expand...
Click to collapse
One reason is that the new version of the stock kernel removed a speed stepping, so it'll power to higher levels faster, thus using more battery.
rentaric said:
One reason is that the new version of the stock kernel removed a speed stepping, so it'll power to higher levels faster, thus using more battery.
Click to expand...
Click to collapse
That actually isn't the problem. I'm using netarchy's kernel and still get this problem.
My battery life dropped from 16 hours --> 6 hours. the slope on my battery usage life is horrible the system is also awake almost constantly even when I'm not touching it / getting no messages.
I will try the fix suggested on the google support forum and see if that does the trick. sloppy update.

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