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So, one thing I've noticed when running through the various ICS ROMs and kernels is that regardless of rom or kernel, Android OS eats up battery at an alarming rate.
In my experience, it usually is eating more power than the screen, which just aint right. Now, I know these ROMs are at an early stage, but this is a common thing between all of them. I've noticed a few others noting it, but I think most are too excited about the new OS to notice the batt life.
Has anyone narrowed down what's going on? I'm curious....
**NOTICE TO FLAMERS**: This is not a post passing judgment on ICS. I'm simply asking if anyone's figured out what the issue is currently, or if anyone has solved it.
nickmv said:
So, one thing I've noticed when running through the various ICS ROMs and kernels is that regardless of rom or kernel, Android OS eats up battery at an alarming rate.
In my experience, it usually is eating more power than the screen, which just aint right. Now, I know these ROMs are at an early stage, but this is a common thing between all of them. I've noticed a few others noting it, but I think most are too excited about the new OS to notice the batt life.
Has anyone narrowed down what's going on? I'm curious....
Click to expand...
Click to collapse
Don't form an opinion of ICS until you actually run an official rom, and not something someone hacked together from AOSP release from a different phone, and leaked dev binaries.
I see this happen too, on the rom i am running. but won't form an opinion until there are proper roms out.
my battery life is great. I get 15+ hours on mine with no issues at all.
Sent from my Nexus S 4G using xda premium
Luxferro said:
Don't form an opinion of ICS until you actually run an official rom, and not something someone hacked together from AOSP release from a different phone, and leaked dev binaries.
I see this happen too, on the rom i am running. but won't form an opinion until there are proper roms out.
Click to expand...
Click to collapse
Jesus christ, I didnt form an opinion of ICS. You need to chill dude. Re-read my post. My post was an inquisitive one, because I recognize that it is some sort of bug or anomaly in EARLY CUSTOM BUILDS, as can be seen when I said "Has anyone narrowed down what's going on? I'm curious...."
There was no need for that....
it doesnt necessarily mean that the android os is using more battery. you can also look at it a different way.. maybe the screen is taking less battery. if the android os uses the same amount of power as always, but the screen uses less, the % battery used is going to go up for android os.
Yeah, but the likelihood of a hardware item suddenly using less power than it used to is certainly way less likely than an OS, software-level item.
I understand your theory on percentages, but as I'm sure you've noticed simms, something's draining the batt quickly, even on UV kernels, and I'm willing to bet it's OS related, and probably related to Android OS (in batt usage). I doubt this is the type of batt life we can expect with the official OTA, so I'm thinking something's running amuck.
My screen used 26%, while Android OS used 39%. In the past w/GB roms, it would have been more like screen 45%, Android OS 11-15%.
nickmv said:
Yeah, but the likelihood of a hardware item suddenly using less power than it used to is certainly way less likely than an OS, software-level item.
I understand your theory on percentages, but as I'm sure you've noticed simms, something's draining the batt quickly, even on UV kernels, and I'm willing to bet it's OS related, and probably related to Android OS (in batt usage). I doubt this is the type of batt life we can expect with the official OTA, so I'm thinking something's running amuck.
My screen used 26%, while Android OS used 39%. In the past w/GB roms, it would have been more like screen 45%, Android OS 11-15%.
Click to expand...
Click to collapse
im just playing devils advocate, to try and see it from a different point of view. right now my screen is at 43% and android os is at 35%. normally my screen is around 51-57% and android os is around 7-11%. mind you, i am tethering at the moment also. but, the screen % is below what it normally is and the android os is much higher than it usually is. so something is definitely going on.
btw, in on the seuv kernel, and its doing alright on battery for me.
i am usingkoush v11 with Franco 26/11 kernel. Off charge at 9.30 am at 98%...5.30 pm 89%...very little usage today..just a couple of emails..but easily getting 15+ hours of battery life with WiFi my main usage including phone calls over WiFi.
My phone is turned on for 17 hours 38 minutes and still has 24% battery with brainmaster v5 + franco kernel
I've noticed this, too.
Last BM version drained my battery massively over night while being in flight mode.
Android OS took 87% of the battery in 8 hours.
So it's definitely a bug.
CM9 Alpha 11 is way better. In 18h 36m Android os 25%, android system 17% Display 15%.
Even though i appreciate the work the devs who are coming up with these ICS roms are doing, i can't use any of them as daily drivers (no flash/Google calender sync issues/performance is noticeably slow e.t.c). Played with Koush's version the other day and was mighty impressed, very. I'm still not sold on the whole ICS look in general, might take a while to get used to it. Seems too fluffy to me, too much eye candy. Battery life wasn't the best, but manageable.
Right now i'm on Oxygen+Carbon rom mix with Franco kernel, and OMG this combo is phenomenal regarding performance and battery life..
my battery life is the same, if not a tad better.. using kwiboos v2.
nickmv said:
Jesus christ, I didnt form an opinion of ICS. You need to chill dude. Re-read my post. My post was an inquisitive one, because I recognize that it is some sort of bug or anomaly in EARLY CUSTOM BUILDS, as can be seen when I said "Has anyone narrowed down what's going on? I'm curious...."
There was no need for that....
Click to expand...
Click to collapse
You're the one that needs to chill. There was no reason to take my reply the way you did. I was just stating facts before people start rumors about ICS being a battery killer.
Sent from my Nexus S using xda premium
Esteway.619 said:
my battery life is great. I get 15+ hours on mine with no issues at all.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
Same here. No custom kernel, no tweaks, no trickery - running Koush's V10 out of the box. Runs smooth, quick, and I go from dawn to dusk on one charge with lots of browsing, app installs, etc.
Luxferro said:
I was just stating facts before people start rumors about ICS being a battery killer.
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Click to collapse
With all due respect, "Don't form an opinion of ICS until you actually run an official rom " is not a statement of fact, it is your opinion/emotional response based upon you misunderstanding of my post. I clearly acknowledged that we were working with early builds, so this is obviously not what the final product should be.
The purpose of this general forum is to have general discussions, and troubleshooting posts. I made a troubleshooting post, seeking out others experiencing the same thing, in an attempt to solve the issue, or see if the culprit has been found.
I will admit that I overreacted a bit, but I think you did the same.
I'm gonna leave it at that, otherwise this'll turn into a flame war.
Braneless said:
Same here. No custom kernel, no tweaks, no trickery - running Koush's V10 out of the box. Runs smooth, quick, and I go from dawn to dusk on one charge with lots of browsing, app installs, etc.
Click to expand...
Click to collapse
I'm curious: check your batt usage. Do you see Android OS almost equal, if not higher in batt usage than the screen?
Now remember, on phones, the screen is the biggest power drain for anyone other than a light user (never turns on screen, makes 1 call a day, etc). Typically, in my usage (usually 25-30% brightness), the screen takes anywhere from 40-50% of my batt life thru the day, with Android OS way down the list. That was Gingerbread.
Android OS 38%
Display 29% (brightness at 12%)
Miren Browser 17%
Cell Standby 9%
74% remaining
8hrs 44min on battery
Sorry, my native screen cap won't save to disk, otherwise I'd upload it.
Sent from my Nexus S 4G using XDA App
Braneless said:
Android OS 38%
Display 29% (brightness at 12%)
Miren Browser 17%
Cell Standby 9%
74% remaining
8hrs 44min on battery
Sorry, my native screen cap won't save to disk, otherwise I'd upload it.
Sent from my Nexus S 4G using XDA App
Click to expand...
Click to collapse
Yeah, I figured it'd be way up there. Now, I'm not saying batt life is BAD. I still can get a good 15-20h out of it if I dont use it much. But I'm used to going 24-36 hrs without having to charge, all with medium usage. I've tried various UV kernels to achieve this again, but Android OS is dominating the battery.
My battery is actually good. I am on cm9 alpha 11 on franciscofranco's kernel. It lasted more than 24 hours on medium use.
more than 24 hours is already good for a smartphone.
ICS look in general, might take a while to get used to it. Seems too fluffy to me
Click to expand...
Click to collapse
yep. My first impressions for it were the same, too much eye candy and too much things going on the screen. Maybe I was just used to the very simple and minimalistic UI of the stock gingerbread. But after using it for a day.I am beginning to realize how amazing and beautiful ICS is.
Yes Android OS is top for me at 45% and on GB ROM it was 4-5%. Batt life ain't too bad but I think the Android OS usage is just something that will get sorted as the development moves forward, especially after the official update drops.
Sent from my Nexus S on CM9, Morfic's SEUV Kernel and some help from Tapatalk!
Hey all
I am loving ICS on my Xoom. However, I have noticed that "Android OS" is taking up tons of battery, with high awake times. I have had it unplugged for about 3 days, and the screen has only been on for like 2 hours. However, "Android OS" is the highest battery eater on the list and has kept the device awake for over 10 hours. Anyone else seeing this? I am having the same problem on my Galaxy Nexus. Thanks for any input.
Have you tried CPU Spy? Mine shows deep sleep when the screen is off. Also screen is the biggest battery user, by far.
Yeah. I used it and it said that it spent 2 hours at 1000mhz (amount of time the screen was on) and 12 hours at 216mhz and 76 hours in deep sleep. That 12 hours is taken by Android OS, and I don't know why. It is killing my battery. Does anyone know why Android OS is staying awake so much?
It is probably apps that are trying to sync. See what you have that might be trying to update/sync.
You also may want to try uninstalling some older applications. I think I read somewhere that some older non-ICS optimized apps can prevent the OS from sleeping.
HuckFinn said:
You also may want to try uninstalling some older applications. I think I read somewhere that some older non-ICS optimized apps can prevent the OS from sleeping.
Click to expand...
Click to collapse
Do you know of any that are especially problematic?
I have 120 apps. Isolating the problem is going to prove to be difficult. Any ideas which ones? This has been happening with my Nexus for 3 weeks now, nobody else is seeing Android OS taking up a lot of awake time?
tysdroid17 said:
Hey all
I am loving ICS on my Xoom. However, I have noticed that "Android OS" is taking up tons of battery, with high awake times. I have had it unplugged for about 3 days, and the screen has only been on for like 2 hours. However, "Android OS" is the highest battery eater on the list and has kept the device awake for over 10 hours. Anyone else seeing this? I am having the same problem on my Galaxy Nexus. Thanks for any input.
Click to expand...
Click to collapse
Just wipe your system clean and reinstall your apps. That will fix all your ICS upgrade issues.
Are you syncing email via activesync? If so, turn it off for a while and check if it makes a difference. This is what makes android os go through the roof for me on the tablet and the phone!
Sent from my GT-I9100 using Tapatalk
tysdroid17 said:
I have 120 apps. Isolating the problem is going to prove to be difficult. Any ideas which ones? This has been happening with my Nexus for 3 weeks now, nobody else is seeing Android OS taking up a lot of awake time?
Click to expand...
Click to collapse
Is that 120 downloaded apps or 120 altogether (including system apps)? Either way, disabling auto-sync and background data before putting your Xoom down could/should help curb the excess battery drain. The only issue with that is certain apps, like Market, won't function without background data enabled but that shouldn't be an issue if you won't be using your Xoom for a while. You could search the forums or Google on how to create scripts to disable/enable background data and auto-sync for you when you put the device to sleep and wake it back up, respectively. Or just search the Market for an app that does that for you.
Do you leave your wireless radios on (wifi, bluetooth, etc.) while not using your Xoom? Setting wifi to disconnect while sleep may also help.
Thank you all for your input, however I think many people do not understand what I am saying...
I understand how to reduce battery drain IN GENERAL, what I am asking is, are people seeing battery drain faster overall on ICS compared to HC? I am, and I think that Android OS is the culprit. Is anyone else experiencing this?
Thanks!
You know, I had the same exact problem when I installed the first fully functional EOS ICS rom for my Verizon Xoom. The Android OS kept draining the hell out of my battery. I went from having about 5 days of battery life to 1 or two tops.
I decided to try a different rom. Since I don't have Mobile Internet, I decided to experiment and installed the Wingray Version of the CM9 ICS Leak(Kang) and I haven't had this issue since.
So I'm not sure what fixed it, was it because I tried a different type of rom, or was it because I downloaded the Wingray version? Not sure, but either way the problem stopped.
Perhaps try a different rom if you're rooted?
I am experience this issue on my Nexus. Try using easy batter saver. It extends my battery life very well.
https://market.android.com/details?...GwsMSwxLDEsImNvbS5lYXN5LmJhdHRlcnkuc2F2ZXIiXQ..
I'm seeing some of the same issues on EoS nightly 49. I'm down to 88 percent with barely any use. 14 hours of up time. Android OS at 3hrs and 27 mins up time.
tysdroid17 said:
I understand how to reduce battery drain IN GENERAL, what I am asking is, are people seeing battery drain faster overall on ICS compared to HC? I am, and I think that Android OS is the culprit. Is anyone else experiencing this?
Click to expand...
Click to collapse
I'm not, if anything ICS is giving me better battery life than HC. Even considering I'm now overclocked and using my Xoom a lot more.
I think a lot of people misinterpret the battery % used though. Just because something is using a higher percent of battery does not mean its sucking your battery down, there will always be something at top of that % list, it doesn't mean there's a problem. It's a relative list. It's entirely possible (and reasonable IMO) to have Android OS at the top of your list if you've used your device for only 2 hours over 3 days! You barely used it, what would you expect to be at the top?
that's a known problem,
Android OS is also taking up a lot in the stats for e.g. the Galaxy S on its ICS port
a related question though:
I'm mainly using my Xoom for ebook reading (PDFs via ezPDF and/or repligo reader) - which ROM in your opinion offers the better battery runtime
Team Eos ICS ROM
or
the Team Tiamat Moray ROM
?
Many thanks in advance !
Android OS battery bug 4.0.3
If your android device has been off for a considerable amount of time, Android os should not be at the top of battery usage list; phone idle would be in that spot under normal situation. However, there is a battery bug in 4.0.3. After installing 4.0.4 on my Gnex it fixed the problem (from my understanding 4.0.4 was only for the Gnex as its a newer device and the Xoom wifi is slowly becoming obsolete). I'm guessing this will be fixed in 4.0.5 that will be released sooner or later... my guess is later with aging devices.
My Wifi only Xoom with Team EOS is getting 4+ days of battery life and my screen is whats taking most of the battery. I am using the latest nightly as well as the latest GAPPs. There is something running on your Tablet that is casing the problem you are having. I am having no probles with ICS at all and having great battery life. Have you tryed using maybe setcpu to setup a screen off profle. I would maybe think about doing a full wipe and starting over with the latest of everything.
My android OS was at the top of my battery usage (74%) even when in sleep mode. I used to get 5-6 days, now I get only 2 at best.
I disabled wireless and the drain goes away, android os goes back down to 2-3%.
Any ideas?
ICS 4.04 Xoom WiFi only.
Thanks
Bruce
tysdroid17 said:
Thank you all for your input, however I think many people do not understand what I am saying...
I understand how to reduce battery drain IN GENERAL, what I am asking is, are people seeing battery drain faster overall on ICS compared to HC? I am, and I think that Android OS is the culprit. Is anyone else experiencing this?
Thanks!
Click to expand...
Click to collapse
mine is draining somewhat fast when i use wireless, but as soon as thats disabled im good to go
So I've been having some weird battery drain the past couple of weeks. I have been trying to watch it and try to find the source of it but cannot seem to nail it down. I dont get that spectacular of battery life overall. First off, I am running zeus v6 with kl2 modem and nothing else done and no overclocking. Battery drain seems high overall, but above 50% battery its not too bad, however once it gets below about 50% battery the drain noticeably increases. Today for example, I unplugged my phone at about 8am, light usage pretty much all day, at 4 or 430pm it was about 50%, I get out of class at 7pm and the battery is down to 20%. Only thing I noticed was that I turned wifi on and left it on but it was connected to a network the whole time so its not like it was searching for a network. I had only about an hour of screen time, maybe a bit more. Its like this every day no matter what I do. I rarely get over 12hrs of battery life. I even got a new oem battery 3 or 4 weeks ago to see if that help but it hasnt much. I'm starting to wonder if it might be related to my phone that I just dont get as good of battery life? Not sure what to think, Im going to try flashing another GB rom in the next couple of days to see if that changes anything. I will post some screenshots of my battery life later tonight for you guys to look at. Let me know if there is anything else you want to know. Anyone else experiencing weird drain like this?
http://forum.xda-developers.com/showthread.php?t=1408433
I had tried the two most recent versions of Zeus, and had unbelievably high battery drain. No WiFi or GPS use at all. If I was actively using the phone, my battery power would drop at roughly 1% every minute or two. And that's with screen brightness turned all the way down. Even with the screen off, it was pretty bad. I'd lose something like 7% an hour, with the phone sitting unused. I had basically the same results with Saurom. I pretty much just chalked it up to something within the ROMs themselves. I get great battery life with stock GB, CM7.2, and Paranoid Android JB.
I was reading that thread you posted qkster and it didn't really seem to be having the same issues as were in that thread. It's more just like no matter what I do the battery drains normally above 50% but below that it drains way faster even with less usage and not doing anything different.
Sent from my SAMSUNG-SGH-I997 using xda app-developers app
Awizzle said:
I was reading that thread you posted qkster and it didn't really seem to be having the same issues as were in that thread. It's more just like no matter what I do the battery drains normally above 50% but below that it drains way faster even with less usage and not doing anything different.
Sent from my SAMSUNG-SGH-I997 using xda app-developers app
Click to expand...
Click to collapse
My posts in that thread contained more links to other bigger threads and user experiences.
I was not offering a solution but only the means to one, if you are looking...
Alright, I'll look a bit deeper into that thread then and see what else I can find in there.
Sent from my SAMSUNG-SGH-I997 using xda app-developers app
This is my second day on codename and I can't help but feel battery life is below par. My current battery wouldn't bother me as much as it does if android system, android os, and media something wasnt always using about half of my used percentage. Take a look at the screenshots and let me know what you think.
Sent from my SCH-I535 using xda app-developers app
I would post this in the Codename rom head
Sent from my SCH-I535 using Tapatalk 2
Post it in his thread, maybe they'll have tips.
Gs3
I dunno it isn't horrible, 30 minutes of screen on is 15% so if you put it in a ratio 15x6 gives you 90% then 30 min x 6 gives you 3 hours of screen on time with 10% left roughly if you used the phone the same way for 3 hours. Like I said it isn't horrible but not spectacular. You can try limiting the notifications you get like fb or games and stuff. I recommend you try gsam battery monitor, it breaks down what uses your battery into very detailed sections so you can see if you have rogue apps and stuff.
Sent from my SCH-I535
I had similar battery life with CNA 3.6.6. Went back to CleanROM 2.1.
I posted in the CNA thread, its due to wakelocks. Get better battery stats app, and wait for an update to CNA or try another ROM until they fix it. CM10 10/7 has no wakelock issues, CNA will incorporate those changes as well.
So i was wondering if anyone else have noticed the battery drain in cyanogenmod10, i know that there's an issue with that, but i didn't find any tread about that, and i wanted to know what is considered to be, well let's say normal drain in that rom. . I didn't want to start a whole new thread, but thats life. You learn from the others.
Since no one have said anything, here is what mine - charged it on sunday, it last till today with normal usage,made phone calls over gsm, 3g video calling with skype ,normal internet browsing over 3g and over wifi, such as posting in the forum, readig news downloading files and also playing games for 30 min, wich was the reason to charge it ( from 27 % to 14 - in 30 min playing fifa). So i've noticed something else, my charging time now is less, i used to charge the tablet from around 7-9 hours, sometimes even more , and now it was charged for 4-5 hours.,
I think that battery drain is something really difficult to follow. You better install some application like cpu spy, better battery stats or such and present us with number and use patterns, so we can see if something is wrong.
Sent from my MB525 using Tapatalk 2
Will do first thing tommorow. 10x for the info.
cherven said:
Will do first thing tommorow. 10x for the info.
Click to expand...
Click to collapse
Ок since last night when i charged now is on 83 percent and better battery stats indicates that the android os is used 42,71 %, screen -25 %, cell standby- 14,15 , idle6,19 , android sys - 4 % and all other stuff is les tha one pecent each. Is it normall drain or the cyanogenmod is eating out my battery.
Dude, not much of information there. I meant you to use the applications betterbatterystats and cpuspy.
But if you battery decreased that much and pretending you didn't use it at all, that seems something is preventing you tab from deepsleeping, and you may use the apps I recommended to known what.
Sent from my MB525 using Tapatalk 2
leodfs said:
Dude, not much of information there. I meant you to use the applications betterbatterystats and cpuspy.
But if you battery decreased that much and pretending you didn't use it at all, that seems something is preventing you tab from deepsleeping, and you may use the apps I recommended to known what.
Sent from my MB525 using Tapatalk 2
Click to expand...
Click to collapse
That's what i've used. I 've used better battery stat pro and all the nfo i got from it was the same as the battery indicator in the android menu, nothing else o and that tapatalk was draining my battery even when it was closed and cpu spy shows that it was in deep sleep 80%
Sent from my GT-P6200 using Tapatalk 2
Play a little bit more with it, betterbaterystats is way more powerful then that. Kernel wave locks, partial wavelocks, cpu states, process and such.
Do some tests, stress tests and comparations, there are a lot of stuff between cyanogen and heavy battery drain. To assume it is cm is one of late things you do.
Sent from my MB525 using Tapatalk 2