Database Users

MASSIVE battery drainage overnight with ZERO usage (with screenshots!)

My battery died overnight with NO usage.
Check out my SystemMonitor log:
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Here's my setup:
- Fresh 3.2.0
- Netarchy 4.1.9.1-CFS BETA - Fresh Compatible
- SetCPU profile:
Screen off 384max 245min priority 100 Conservative
Temp > 50C 460max 245min Priority 98 Conservative
Charging full 1152 max 245min priority 96 Conservative
Battery < 20 768max 245min priority 88 Conservative
Battery <100 1152max 245min priority 84 Conservative
Nothing seems to be the cause, yet it went downhill and died. Any ideas?

wow thats some major drainage

Nevermind, fixed adb issue

aph said:
Nevermind, fixed adb issue
Click to expand...
Click to collapse
Can you elaborate? I have the same issue with battery drainage after trying multiple ROMs and kernels for 2 weeks.

justinlai said:
Can you elaborate? I have the same issue with battery drainage after trying multiple ROMs and kernels for 2 weeks.
Click to expand...
Click to collapse
Sorry that was a separate issue I made that reply about, where adb wasn't finding the phone. Resetting my computer fixed it.
I'm going back to Netarchy 4.1.8 and disabling SetCPU first, then if that doesn't work will do a full wipe, reflash Fresh and restore from my Titanium backup. If THAT doesn't work I'll flash Froyo Fusion and go back to stock HTC kernel.

To me, what's interesting isn't necessarily the drainage itself (as crazy as as that drainage is), but the fact that the drainage isn't tied to any device or cpu usage. How does that happen?
Normally, wouldn't you see matching peaks? At least between CPU and battery?
Sent from my blah blah blah blah

fachadick said:
To me, what's interesting isn't necessarily the drainage itself (as crazy as as that drainage is), but the fact that the drainage isn't tied to any device or cpu usage. How does that happen?
Normally, wouldn't you see matching peaks? At least between CPU and battery
Click to expand...
Click to collapse
That's my expectation as well, hence the kernel rollback and SetCPU disabling, as those are the only components I can identify that would have a passive influence resulting in the uncoupled usage/drainage.

Just to report back, did a full wipe and reflashed Fresh 3.2.0 and netarchy 1.8 and drainage seems to be back to normal. I'll stick with this for now, or maybe go to nerachy 1.9 beta to try the addtitional power savings of HAVS since it's an easy rollback.

I've paid attention to all of the threads about battery life. I've done my best to optimize my device for maximum battery life but I can't believe what I'm seeing. Last night, I left my house at 5:30 with a fully charged device for a block party. At 10:30 last night my battstat widget had my battery life at 83%. I am using setcpu for screen off profiles and a few others. I have wifi and 4g off, always on days unchecked, Google Talk auto sign in unchecked and only received about 15 emails (screen was off the rest of the time).
I am rooted with baked snack 1.7 with kernel #6. What gives? Just since typing this post it has dropped to 78%. Turned screen off overnight and woke up to 51%. This is crazy.

What about your roaming setting? I would assume it has something to do with trying to find a signal also. I would suggest turning off everything. No widgets, no nothing. Run the phone for only two days with nothing on. I would go as to even turning the airplane mode on and running basic phone for a day. If that doesn't work then its the ROM or you didn't fully stop a app or delete it.
If you want it fixed you are going to have to put in some serious testing time. I'm amazed that no one has made a diagnostic app yet.

ddublu said:
I've paid attention to all of the threads about battery life. I've done my best to optimize my device for maximum battery life but I can't believe what I'm seeing. Last night, I left my house at 5:30 with a fully charged device for a block party. At 10:30 last night my battstat widget had my battery life at 83%. I am using setcpu for screen off profiles and a few others. I have wifi and 4g off, always on days unchecked, Google Talk auto sign in unchecked and only received about 15 emails (screen was off the rest of the time).
I am rooted with baked snack 1.7 with kernel #6. What gives? Just since typing this post it has dropped to 78%. Turned screen off overnight and woke up to 51%. This is crazy.
Click to expand...
Click to collapse
That's not bad. The phone really only goes to about 90% charge at most unless you use the calibration method to charge all the cells. So after 18 hours it was down about half.
Check your Accounts/Sync settings and turn off Facebook, Twitter, Gmail, Google Calendar, etc. syncing.

ddublu said:
I've paid attention to all of the threads about battery life. I've done my best to optimize my device for maximum battery life but I can't believe what I'm seeing. Last night, I left my house at 5:30 with a fully charged device for a block party. At 10:30 last night my battstat widget had my battery life at 83%. I am using setcpu for screen off profiles and a few others. I have wifi and 4g off, always on days unchecked, Google Talk auto sign in unchecked and only received about 15 emails (screen was off the rest of the time).
I am rooted with baked snack 1.7 with kernel #6. What gives? Just since typing this post it has dropped to 78%. Turned screen off overnight and woke up to 51%. This is crazy.
Click to expand...
Click to collapse
Stay away from fancy kernels that claim to have BFS, HAVS, WTF, BBQ and simply stick with Netarchy's 4.1.8 CFS Kernel. Also, don't use SetCPU, contrary to popular belief, it does NOT help with the battery at all,in fact it makes it worse. Do that and then report back. I'm sure you will notice a major improvement

Try turning your data completely off. A lot of apps automatically have access to certain functions of your phone and will tend to run in the background even after you "kill" them. With your 3g off they will not be able to do this. I've found that 3g is the main source of battery depletion and if you're like me and have way too many apps either use your power widget and turn off 3g/data or roll with a charger everywhere you go.

aph said:
My battery died overnight with NO usage.
Check out my SystemMonitor log:
Here's my setup:
- Fresh 3.2.0
- Netarchy 4.1.9.1-CFS BETA - Fresh Compatible
- SetCPU profile:
Screen off 384max 245min priority 100 Conservative
Temp > 50C 460max 245min Priority 98 Conservative
Charging full 1152 max 245min priority 96 Conservative
Battery < 20 768max 245min priority 88 Conservative
Battery <100 1152max 245min priority 84 Conservative
Nothing seems to be the cause, yet it went downhill and died. Any ideas?
Click to expand...
Click to collapse
That's crazy. Since there's no correlation between battery usage and any function do you think maybe you have a faulty battery? Please let me know as this is very disturbing.

I'm going to go out on a limb and just say your Time Without Signal is around... 40-70%.

macramentonate said:
That's crazy. Since there's no correlation between battery usage and any function do you think maybe you have a faulty battery? Please let me know as this is very disturbing.
Click to expand...
Click to collapse
Check out post 8 - it was apparently a rom/kernel issue.

drmacinyasha said:
I'm going to go out on a limb and just say your Time Without Signal is around... 40-70%.
Click to expand...
Click to collapse
Nah, I was sleeping and I charge my phone by my window in midtown Manhattan. Full bars all night.

Install Spare Parts. Look up battery usage and check partial wake usage. Something is keeping your phone awake when it should not be.

I've had similar battery drain issues when using profiles under setcpu. If I disable those my battery usage tapers off to a much more predictable state. Although Google Earth requires a reboot for some reason before it stops sucking down the juice.
CM6, snap 7.6 CFS

ditch setcpu, its not needed with the new 3.28 base. With juice defender on and light/medium usage i can get about 24 hours per charge

Hello all

Hi everyone, I'm new to the forum. Recently got a Nexus S i9023, very happy with the phone. Messing around with custom ROMs, currently running latest NSCollab with latest matr1x kernel, 9.5.
Any suggestion from others who have the same setup? Curious about battery life, as I seem to not get the same average-use runtimes as others who post in the dev forum.
Thanks for feedback!

You're running the same setup that I am, and my phone easily runs 20+ hrs with the stock battery.
I run 100/1000 mhz, smartassv2, -35mV undervolt, deep idle enabled. I'm a bit more active in power management than others; leave 3G off unless I need it, use only wifi while at home, and decrease screen brightness to bare minimum.
Usually take advantage of power conserving tricks such as dark wallpaper, inverted browser colors, minimal widgets, etc.
NS4G NSCollab Sprint 1.0.51, Matr1x 9.0, Shady Arctic Blue Theme

I am lazier than you- won't probably start switching 3G on and off. I switch it to 2G when the battery is down and I can't get to a charger.
WiFi on only as needed of course. Will play with undervolting soon.
DeepIdle though- it should be the ONE thing that extends the battery by hours, although I can't seem to see the benefit. Idle drainage is still 4%-5% every hour. Does it seem normal to you?

No, that's not normal. Check to see if deep idle is enabled and check for any misbehaving apps. My battery usage flatlines when the screen is off.
You can also try Juice Defender for automatic power management. It turns off the 3G radio when the screen is off, but still lets apps and email sync when they need to.
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NS4G NSCollab Sprint 1.0.51, Matr1x 9.0, Shady Arctic Blue Theme

Great screenshot suggestion, got that battery monitoring tool. Will report back.
What app should I use for detecting high unusual CPU usages? Any specific good one in mind? I find that everything seems normal in the built-in Android battery statistics info panel...

Also, how do you feel about the battery charge "fix" that allows the battery to reach 100%? Does your 9.0 kernel have the patch too? I read different opinions about that, I don't mind some extra juice but I wouldn't want to see the battery deteriorate, since I often leave it plugged overnight.
Or maybe it's a fix in the sense that it shows 100% but it still charges to less than that?

You can click "Usage" and/or "Statistics" in BMW to see what's been using power. SystemPanel is also a good monitoring app, but it's a paid app.
Matr1x 9.0 does have the 100% battery charge feature (I'm currently using 9.5) but I'm not sure if it truly fills the battery cells or if it's just a percentage display trick. My battery charges to 100%, 1440mAh, and 4,187mV so I think that's a true full charge.
I'm still new to the Nexus, so I've not yet learned all the quirks and minutiae of this phone. Coming from the Evo 4g and I just switched to nexus a few weeks ago.
NS4G NSCollab Sprint 1.0.51, Matr1x 9.0, Shady Arctic Blue Theme

See:
Uploaded with ImageShack.us
At idle time, phone still consumes more or less 15-20 mA, as evident from the graph. Yours seems to absolutely not drain current at all (your charge stays at 100% and your mA graph is at 0 for a good two hours)!
You could post a screenshot of your detailed battery history readings (bottom left button "History") when you have a chance. Just out of curiosity.
Thanks for the info you gave me so far!

-15 or so mA is not unusual at idle. Mine actually runs around -5 at rest. My Evo wouldn't go any lower than -16mA.
Been using the phone nonstop tonight, so I scrolled back a bit to find an idle period in the history. Sorry for so many data points... it updates every two minutes.
NS4G NSCollab Sprint 1.0.51, Matr1x 9.0, Shady Arctic Blue Theme

Welcome!

Pleased to meet you!
Braneless, thanks for posting. Now are those idle battery drains with data on? On wifi, or 3G, or 2G, or what? All other connections off?

I use 3G only when I'm out and about, but wifi is on at all times when I'm home. WiFi radio draws a fraction of the power that 3G does, so I just leave it connected.
In other words, the battery history figures are with 3G off and wifi on (set to never sleep with screen off).
Setting wifi to never sleep prevented random reboots with certain roms for the Evo - I just carried that practice over... not even sure if it's necessary for the Nexus.

I use NexusMV with latest Matr1x kernel and I use 1% overnight with airplane mode on.
After 24h I still have 58% left right now

Bad news.
Uploaded with ImageShack.us
I was testing idle battery drain again tonight. Got a system hang of some sort, had to pull the battery. Phone didn't come off of sleep. I was testing with WiFi off and 2G only. As you can see the battery went down 35% during the system hang, in just little over an hour.
I also noticed I don't get anywhere close to only 5mA drain in idle, even with just WiFi on, like braneless. Again, running latest NSCollab ROM with latest Matr1x kernel, 9.5.

Have you tried checking if there is this file in "/sys/class/misc/deepidle/enabled", it should be 1 if enabled, 0 if disabled.
I think that in some versions of the kernel deep idle would be implemented but not enabled by default.

waterface said:
Bad news.
I was testing idle battery drain again tonight. Got a system hang of some sort, had to pull the battery. Phone didn't come off of sleep. I was testing with WiFi off and 2G only. As you can see the battery went down 35% during the system hang, in just little over an hour.
I also noticed I don't get anywhere close to only 5mA drain in idle, even with just WiFi on, like braneless. Again. running latest NSCollab ROM with latest Matr1x kernel, 9.5.
Click to expand...
Click to collapse
This system hang is the reason why I left NSCollab. Too many times I woke up with my device not waking up (note: the alarm wouldn't go off either)
There's more people reporting the same issue on NSCollab, no idea what causes it though.
Greetz

frutelaken said:
This system hang is the reason why I left NSCollab. Too many times I woke up with my device not waking up (note: the alarm wouldn't go off either)
There's more people reporting the same issue on NSCollab, no idea what causes it though.
Greetz
Click to expand...
Click to collapse
Did you undervolt the kernel? I had the same issue when I was running an aggressive -75mV, but it completely disappeared when I reduced it to -25mV.

Sosdoc said:
Have you tried checking if there is this file in "/sys/class/misc/deepidle/enabled", it should be 1 if enabled, 0 if disabled.
I think that in some versions of the kernel deep idle would be implemented but not enabled by default.
Click to expand...
Click to collapse
Checked it, value returned was 1, enabled.

Braneless said:
Did you undervolt the kernel? I had the same issue when I was running an aggressive -75mV, but it completely disappeared when I reduced it to -25mV.
Click to expand...
Click to collapse
Matr1x 9.5 is an undervolted kernel, if I remember correctly, -35 mV. I flashed franco.kernel this morning to give it a try, seems like it has more recent bug fixes for deepidle mod. And is not UVed by default. I'll see what happens, and how's battery life with no UV.
Still wondering how braneless got just 5mA drain in idle. Would like to have his exact ROM/kernel/settings/tweaks/OC-UV setup posted!

You can also increase voltages using Proton Control.
My setup is pretty simple;
NSCollab Sprint 1.0.51
Matr1x 9.5, -25mV, smartassv2, deep idle enabled
ADW Ex launcher
Screen brightness set to 10%
3G off nearly all the time
WiFi used whenever I'm home
Autosync off, sync mail/cal. manually
That's it! Keep in mind that all phones and their chips are not built entirely the same due to manufacturing tolerances. Some phones can handle varying degrees of undervolt, underclock, overclock, etc. Power drain will vary as well.
Here's my battery summary screen, so you can get an idea of what's consuming my battery:

Battery Life: desperate for help

Hey,
I know there are a lot of threads about this topic, and I've read a lot of them on my quest to improve my batterylife. I've come from 4-5% usage in sleep down to 2%, but i still think its to much, and could use some assistance.
Like I said, I read a lot of threads discussing this matter but I would like for someone with a little more experience to take a look at the data and tell me what you think.
so here are some screenshots which I dont understand completely.
So what I dont understand is, cpuspy says, 84% of the time my phone was in deep sleep, but the batteryuseage shows something completly different. it shows the phone has been awake almost the whole time.
but if i'm reading BBS correctly there are no mayor wakelocks occurring.
i looked at my battery before i went to bed last night. it was at 59%. exactly 10 hours later when i woke up, it was at 40%. that means it lost almost 2% an hour when i didnt touch the phone once.
so i know stuff like BLN sucks juice, but i havent gotten a notification last night, and i set a schedule for BLN to turn off turing sleeping hours. and it only blinks for 10 minutes after a new notification has arrived and then stops.
i undervolted the CPU a bit (75mV on every speed).
i calibrated the battery (drained completely, removed for 2 minutes, charged to full while phone was off, at 100% removed it again for 2 minutes, put it back in and booted phone)
i wiped the battery stats
turned off a bunch of stuff, like autoupdate on market and other tips i found here on the forum.
wifi sleep policy is set to when screen turns off (btw. sometimes i doenst reconnect after the phone wakes from sleep, anyone got an idea how to fix that?
i'm running galnet miui with the siyahs 2.3 kernel and the KI4 modem.
now the question is, where does that leave me? what am i missing here?

For one day see what your battery life is like when you COMPLETELY disable BLN. Titanium freeze it or uninstall it. Second screenshot, what is that Imapfolders things? It has a high count (I see 1200), maybe try disabling that for a day just to make sure its not an app acting rogue. Another thing, have you disabled samsung bloatware (IM app, social hub, game hub etc).

Most of your wakelocks are radio related. When the phone gets a data request and wakes up to handle it.
I suspect its the K9 push email account that is doing it - anyway to change that?

adding on these questions that i also faced by the thread starter, how does this affect:
AlarmManager
Android System
40s(40s) Count 2336 0.1%
i believe this might be the contributor to the constant phone wakes?

Remoteconcern said:
Most of your wakelocks are radio related. When the phone gets a data request and wakes up to handle it.
I suspect its the K9 push email account that is doing it - anyway to change that?
Click to expand...
Click to collapse
would forwarding my mail to gmail and then getting it pushed from there be better?

from what I've seen on here gmail causes bigger wakelocks. most people recommend using K9. Maybe try a different rom? sounds like a big move however I do know that when running the hyperdroid rom for example most people get amazing battery life. Seen a few nice battery reports with checkrom also

I can confirm battery life on Check Rom coupled with Siyah 2.3 is excellent.
I might be stating the obvious to the OP but have you frozen most of the bloatware in Titanium Backup, ever since i done this battery life has improved substantially.
Also go into Wi-Fi settings > Wi-Fi sleep policy and ensure it is unticked,choose one of the other 2 options
In location and security untick Use GPS Satellites as this will use up lots of battery when it's ticked.
In the Privacy tab untick back up my data as this too will cause battery drainage.
Lots and lots more battery saving ideas, search and you'll find them

well i really like miui so i dont think i'll switch just yet. i'll leave that as a last resort.
i see my mistake here, i should rather be looking at the wakelock count rather than the time correct? K-9 sure as hell has a lot of wakelocks. (counting all wakelocks mentioning K-9, i get more than 8000)
the problem is, my email provider doesnt support push, only imap idle, that must be the reason why its wakeing the phone up so often. although i didnt get any mail last night...
from my understanding push services work a little different, since the app using it doesnt have to be connected the whole time. it gets woken up when the server sends a new message.
i deleted k-9 for now, and i'll see how that reflects on my battery life.
would maybe polling mail every hour be better than using imap idle?
work related i really need a way to get my mail frequently.
jonny68 said:
I can confirm battery life on Check Rom coupled with Siyah 2.3 is excellent.
I might be stating the obvious to the OP but have you frozen most of the bloatware in Titanium Backup, ever since i done this battery life has improved substantially.
Also go into Wi-Fi settings > Wi-Fi sleep policy and ensure it is unticked,choose one of the other 2 options or none at all.
In location and security untick Use GPS Satellites as this will use up lots of battery when it's ticked.
In the Privacy tab untick back up my data as this too will cause battery drainage.
Click to expand...
Click to collapse
have done all of that already, like i said, i've read a lot on the forums (cause i myself hate ppl asking the obvious they could've found out by using search for 2 minutes) but thanks for the tips.
only thing i'm not so sure about is the bloatware. since i dont think miui has a lot of that. but i'll look into that.
thanks for all the help so far.
i'll try to look at wakelock count more than on time.
one really anoying thing is BBS force closes A LOT on miui rom. at least i think its rom related, since i didnt have these problems with the other roms i tested since i got the phone.

Hey Phoboss,
please consider the rom is almost non relevant (except eye candy) to battery drain, the kernel makes the difference! I was on Siyah until three days ago with a consumption of 10% in 8 hours during normal usage of the phone, but then i found this Thread, give it a try (i use extreme edition w/o ans probs) forget about setcpu, if the kernel was compiled right, u dont need it!
Furthermore, why do you replicate so many folders in K9, from my POV the Inbox should be sufficient, but I dont know ur provider, push works fine with GMX, even on a freemail acount
If you want to try more, freeze the Calendar App and choose an alternative, from what I have heard, this helps to get rid of most of alarmmanager wakelogs (to be confirmed).
BTW, im on 75% Battery left right now after 20! hours on Battery with moderate usage (some WIFI, lots of XDA App , some calls and browsing, most on 3G which is always on)
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Good Luck!

Does your carrier support Fast Dormancy? Because you can turn that off as well to save a few % batterly life if it's not supported. There's usually a phone/model specific code you can type into the dial pad to switch it on/off (I can't remember off the top of my head what the code is but if you search around you'll find it for the SGS2).

Thanks for the tips, I'll look into that.
Here's a little update from last night. Was sleeping for pretty much exactly 8 hours and lost 8% battery in that time. So I came down from 2% an hour to 1%. Still think that's to much though.
The thing is, in the 40 minutes I'm awake now, I've been using tapatalk and surfed the web and I lost another 5% in that time.
This can't be normal can it?
Battery usage is still showing that the phone has been awake the whole night. As you can see on the screenshot below, between 0:00 and 8:00 I was asleep, screen and WiFi where off the whole time, but the phone is shown as awake. I've attached another bunch of BBS stats, this time sorted by count and not time.
(btw. how do you get BBS to show a graph like on your screenshot karpfenhai?)
And isnt Siyahs kernel considered one of the better ones around? Just curious.
Fast Dormancy is not supported by my operator, BUT I've read that it doesn't matter because my operator propagates that to the phones, and they disable it themselves.
Regarding K-9 checking so many folders, that's because I have them sorted by server side rules. I guess I could limit that to work mails.
Thanks again for the help so far.

I used Siyahs kernel for a while and I loved some of the features but Speedmod has it beat in terms of speed (duh! ) and battery life (I had read that multiple times which made me switch and I noticed a drop in battery consumption when switching to Speedmod).
You can check if FD is off as well but if your carrier doesn't support it may as well switch it off rather than relying on the phone to do it for you (I'd read a fair few posts from my fellow Aussies recommending switching off FD because AFAIK none of our carriers support it and it's a battery drain).
BTW - regarding Wifi sleep policy, I've seen people DEMAND that you completely turn off sleep policy as it's a battery drain (like you, i've been doing lots of battery reading and got mine down to very low consumption thankfully) - try comparing BBS with sleep policy on screen off vs sleep policy off and actually switching wifi off completely overnight.
Also, one thing I found useful was using titanium backup to completely freeze apps I wasn't using rather than just relying on the individual app settings. This also helps because it stops them booting when you start up your phone. Speaking of which, get Startup Manager if you haven't already - just like your home pc: turn off everything you don't need
EDIT: my uni mate wrote a pretty good general guide (for installing custom roms/etc as well as batter life tips) that might help you: http://forum.xda-developers.com/showthread.php?t=1351663

phoboss said:
Thanks for the tips, I'll look into that.
Here's a little update from last night. Was sleeping for pretty much exactly 8 hours and lost 8% battery in that time. So I came down from 2% an hour to 1%. Still think that's to much though.
The thing is, in the 40 minutes I'm awake now, I've been using tapatalk and surfed the web and I lost another 5% in that time.
This can't be normal can it?
Battery usage is still showing that the phone has been awake the whole night. As you can see on the screenshot below, between 0:00 and 8:00 I was asleep, screen and WiFi where off the whole time, but the phone is shown as awake. I've attached another bunch of BBS stats, this time sorted by count and not time.
(btw. how do you get BBS to show a graph like on your screenshot karpfenhai?)
And isnt Siyahs kernel considered one of the better ones around? Just curious.
Fast Dormancy is not supported by my operator, BUT I've read that it doesn't matter because my operator propagates that to the phones, and they disable it themselves.
Regarding K-9 checking so many folders, that's because I have them sorted by server side rules. I guess I could limit that to work mails.
Thanks again for the help so far.
Click to expand...
Click to collapse
1% an hour is very good pretty much what i get you cant really get much better than than unless you switch off data and sync and most other things, consider yourself lucky you only lost 1% an hour, if your surfing the web for about 40 mins non stop 5% sounds about right too.

Hello again, it seems you are on the right track, go ahead, its getting better
I had the same issue, 2ma consumption for 3-4 hours after unplugging, then it raised to 14-18ma for no reason, my suspicon was the accu wheather widget, but I didnt do any further investigation cuz I switched the kernel and the issue dissappeared, yay
Bbs can provide some more infos even on alarms, check it:
I still have 35% left and I can leave the house w/o getting panic ;-)
Try the kernel I mentioned earlier, you can only win!
Sent from my GT-I9100 using XDA App

BBS is force closing like crazy, cant really use it a lot.
the thing is, i still dont have an idea why my phone is always shown as awake. the one time i could access the graphs within BBS it showed the same behaviour. phone was/is awake the whole time.

As far as I know, this is related to miui, I've seen other users using this rom complaining about fc's..
Search for logcat and do a manual dump to gain the desired data.
Sent from my GT-I9100 using XDA App

I wonder if that constant awake bar is something to do with MIUI - certainly 8% in 8 hours drain isn't constantly awake, it would have drained more.
I route all my email to my Gmail and push that - doesn't seem to give me any battery trouble! I don't know if its a good option for you, or really whether or not its battery efficient, I just really like the Gmail interface.

so i've frozen some apps, wiped dalvik and cache partitions
but unfortunately that didnt really help.
here are some more screenshots (i resetted the data to get a more accurate reading) from the last half hour, during which, as you can see by the screen on time, i havent used the phone.
so do you think its odd that my phone got woken so often during this short time, or am i just to anal about it?

Simple can work well
DramatikBeats said:
from what I've seen on here gmail causes bigger wakelocks. most people recommend using K9. Maybe try a different rom? sounds like a big move however I do know that when running the hyperdroid rom for example most people get amazing battery life. Seen a few nice battery reports with checkrom also
Click to expand...
Click to collapse
Just to back this up im running Hyerdroid just checked been running 20hr 15min and on 83% but dont do any fancy stuff just charge the phone when it needs it

like your battery saving method , but it doesnt help you, if your phone dies during a work day. all the testing i did was basically lab tests, i never really used the phone much during this time. if i start getting calls and writing mails all day, the battery will die, thats why i need to find out whats going on.
i just want to know, if what i'm seeing on the first screenshot in my last post is normal or not. from my understanding its just a little odd that, in the approx. 30 minutes that are displayed, my phone was awake a lot, when the screen wasnt even on (i was under the shower and havent touched the phone ones).

[Q] Incredibly annoying battery life on idle, AFTER rooting

I'll start off that I'm a novice android user, I got this phone a month ago and before that I was using a Nokia E63.
Anyway, so I rooted and all that junk, did a factory reset and all that junk, and now my battery is complete garbage on idle.
Before I rooted, when in idle for 8~ hours, the slope was very minimal and I lost about 1-5% battery life. Now, the battery is draining like crazy, to the point where I have to charge several times a day.
I know the problem isn't the fact that I rooted.. but what is!?!
yesterday morning
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today morning (15 minutes ago)
Obviously it's this thing called Google Services that doesn't show up *AT ALL* when I was using the phone all yesterday. It seems to only use battery when the phone is sleeping.
Halp!

kernel
The stock kernel is garbage is what it is , install Franco kernel and forget u ever had this issue , rooting your phone didn't cause battery drain like u said ..... Google services could be anything , check your maps app setting

drawde40599 said:
The stock kernel is garbage is what it is , install Franco kernel and forget u ever had this issue , rooting your phone didn't cause battery drain like u said ..... Google services could be anything , check your maps app setting
Click to expand...
Click to collapse
The stock kernel is actually very improved to all other efforts and it sleeps likes baby. I'm willing to bet maps is the issue, but it isn't like the stock kernel sucks THAT much.
Sent from my Nexus 4 using Tapatalk 2

joshnichols189 said:
The stock kernel is actually very improved to all other efforts and it sleeps likes baby. I'm willing to bet maps is the issue, but it isn't like the stock kernel sucks THAT much.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Ya no it dose , i coundnt get over 2 hours screen on time with my normal settings with stock ROM and kernel . screen 70% , GPS , data , Google now , sync all ON . changed to Franco kernel i get 4.4 hours screen on time now , no more heat throttle , no more heat , its smoother , faster just better , something to think about / try , u can always go back just as easy

OK, now this is strange,
at first I thought it was fixed; what I did was update Google Maps. After a few hours, the problem of "google services" came back...
help!!

Keep your phone connected to Wi-Fi while you're sleeping and it will drain much less (I've sometimes seen <5% over 8-10 hours). Keeping your phone on network will continue to "wake it" during the night.

Get GSAM Battery Monitor or BetterBatteryStats to get a better look at exactly what is draining your battery so quickly.

It has to be one of the Google apps running on the background. Like somebody mentioned, get better battery stats to see what's exactly draining your phone. Also, I've noticed that if I keep NFC enabled, some apps that utilize it, will kill my phone way faster. So check NFC maybe, try disabling it and see if it makes a difference.
Sent from my Nexus 4 using xda app-developers app

I suggest you try Franco Kernel since you're rooted anyways.
No regrets.
Swagged out of my NeXus⁴ using XDA Premium

I can only underline what ppl said in terms of franco kernel. Easy to patch and insane improvement. And it is for free unless you buy his app. I was laughing when I saw those pics with such a low battery life. I always get 6 hours screen on time.

Gaheris said:
I can only underline what ppl said in terms of franco kernel. Easy to patch and insane improvement. And it is for free unless you buy his app. I was laughing when I saw those pics with such a low battery life. I always get 6 hours screen on time.
Click to expand...
Click to collapse
6 hours with data enabled the entire time?

dralways said:
6 hours with data enabled the entire time?
Click to expand...
Click to collapse
WiFi..no way he gets that with data as this phone SUCKS on battery life with 3G/H.

Well before I rooted there was absolutely no problem with battery. I use a $15 tmobile plan with no data. I basically use my phone like a tablet. NFC and most other features are disabled.
I'll give that other kernel a shot once I figure our how to do all this...

Hi
Smiert said:
I'll start off that I'm a novice android user, I got this phone a month ago and before that I was using a Nokia E63.
Anyway, so I rooted and all that junk, did a factory reset and all that junk, and now my battery is complete garbage on idle.
Before I rooted, when in idle for 8~ hours, the slope was very minimal and I lost about 1-5% battery life. Now, the battery is draining like crazy, to the point where I have to charge several times a day.
I know the problem isn't the fact that I rooted.. but what is!?!
Obviously it's this thing called Google Services that doesn't show up *AT ALL* when I was using the phone all yesterday. It seems to only use battery when the phone is sleeping.
Halp!
Click to expand...
Click to collapse
I had the exact same issue, and there is a problem with the Nexus 4 in that some applications stop the phone deep sleeping, even though the same applications have no issues on other devices. This keep awake seems to happen lower down and isn't recorded in Android as the phone being awake. The same issue appears on Franco kernel (I've tested it) as well so that isn't a fix if this is the problem.
Follow my post here to see if you are affected, then work to find the problem app. http://forum.xda-developers.com/showthread.php?p=36100401#post36100401
If anyone wants to test this with other kernels then:
Download CPU Spy. Reset CPU spy timers to zero, and first check the phone is deep sleeping by leaving for 30 minutes with screen off and USB cable unplugged and confirm Deep Sleep is around 90% or more. Now download Snowfall Live Wallpaper and set the wall paper as active, repeat the above, and see that Deep Sleep is never entered into. Use your favourite battery stats checker and you will find no indication of wake locks. Snowfall Live Wallpaper doesn't even have permission to keep a device awake.
Next set a different wall paper from the stock options (live or static) and repeat the test, note that Deep sleep is STILL not being entered even though the live wall paper is no longer in use. Now from the list of cached processes, remove the cached process for the Snowfall Live wall paper, repeat the test, and now the phone is entering Deep Sleep. So this particular wall paper has the power to stop the phone deep sleeping even when it is a cached (and so stopped) process. Another application that causes this bug is BeWeather & Widgets.
Even un-installing the problem application doesn't return the phone to be able to deep sleep, as the app is still a cached process. This can make it difficult to find the app causing a problem.
Testing these applications on a Nexus 7 and HTC One X causes no issues with the device deep sleeping, ergo, Nexus 4 bug. I'm sure there are other applications causing the same issue.
Regards
Phil

drawde40599 said:
The stock kernel is garbage is what it is , install Franco kernel and forget u ever had this issue , rooting your phone didn't cause battery drain like u said ..... Google services could be anything , check your maps app setting
Click to expand...
Click to collapse
It is not garbage at all.
The op must have too many background apps running. Probably has nothing to do with the kernal or rooting..
Sent from my Nexus 7 using xda app-developers app

I have wifi on almost all the time and I get a full day, 5 hours screen on time. I use franko kernel and aokp.
Google services must be something like lattitude reporting your location, or an app that polls data all the time. Even with
auto sync on, whatsapp syncing and wifi on all day I dont have google services anywhere in my battery list.
Of course, it is entirely possible it is something to do with google now, which I have turned off

Richieboy67 said:
It is not garbage at all.
The op must have too many background apps running. Probably has nothing to do with the kernal or rooting..
Click to expand...
Click to collapse
My "multitask" button menu is always empty. I never keep anything voluntarily suspended in the memory (if that's what your talking about)
biffsmash said:
I have wifi on almost all the time and I get a full day, 5 hours screen on time. I use franko kernel and aokp.
Google services must be something like lattitude reporting your location, or an app that polls data all the time. Even with
auto sync on, whatsapp syncing and wifi on all day I dont have google services anywhere in my battery list.
Click to expand...
Click to collapse
I originally hated Google Maps (before I rooted) because it used up about 1-5% of my battery with GPS and all other related settings disabled... no problems at all with battery back then. I basically did the same thing after I rooted, but then I started having the Google Services battery problem, where then I re-enabled most of the Google applications I disabled (maps, books, magazines, wallet) and updated them, hoping for Google Services to be satisfied, but nada.
Anyway, today was TERRIBLE. I need to keep WiFi on all the time otherwise Google Services eats my battery. But at the end of school today, I looked at my phone in horror to see that Google Maps took a huge chunk of my battery (and 3 hours earlier there was no trace of Google Maps in the battery status settings)
Battery life today : the bad stuff started happening once I left the mobile service area. Google Maps did not show up on battery settings before that time.
Keep AWAKE FOR AN HOUR???
still not sure what this is, 5% from this app basically translates to another 30-40 minutes of battery life
acceptable wifi usage
CPU SPY:
I just disabled the Google Location Services, I wonder if that would change anything... could it really be that simple? Unlikely.
As for applications, I don't have many... and I don't have a live wallpaper or anything. I keep my phone on the lowest brightness indoors and automatic outside. I try to save every bit of battery I can, and a useless wallpaper or running application doesn't help with that (I uninstalled a few apps like FB that kept on running in the background)

I wish I had 20 hours of battery life... My N4 is empty after 6 hours on CM10 with Francos kernel.

Freeze Maps

Android OS draining battery?

Well my nexus has been giving me 5 hours SOT for the longest time, but just randomly, it decided to start dying really fast. I checked battery stats, and sure enough, android OS is the killer here. I'm aware android OS drains are usually because of apps installed, but I haven't installed anything new or suspicious any time recently. I even did a full wipe and reinstalled the rom I'm running.
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Are any of these apps known battery drainers?
Here's my battery shots.
Anyone know how to troubleshoot which apps are killing my system? I'm running CM 4/22/13 and franco.kernel r127 if that makes any difference.
Thanks guys!

If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app

Eddy130306 said:
If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Updated OP

Eddy130306 said:
If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.

ingenious247 said:
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.
Click to expand...
Click to collapse
Pretty much my scenario

android os thing happened to me, i think for me it was because it was trying really hard to connect and stay connected to the bad wifi at my school, turned off wifi and the drain stopped. not sure about ur situation though

http://forum.xda-developers.com/showthread.php?t=1179809
This might just help you out. It'll show you any partial and kernel wakelocks and which processes are causing it.
I had this problem a while ago, so I did a clean install of my rom and apps and the problem was gone. If you can pinpoint the app that's causing your phone to stay awake, you can avoid having to do what I did xD

Really weird... this has been happening to me too, but not as drastic as yours (still a good chunk)
I just reflashed my ROM just in case that was the problem.
Also when I used better battery stats to see what's going on, all it showed me was the power manager thingy. Which showed me nothing.
Sent from my Nexus 4 using Tapatalk 2

kyokeun1234 said:
Really weird... this has been happening to me too, but not as drastic as yours (still a good chunk)
I just reflashed my ROM just in case that was the problem.
Also when I used better battery stats to see what's going on, all it showed me was the power manager thingy. Which showed me nothing.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
That's all it ever shows when it comes to Google services jacking up the phone. Kind of convenient for Google since we can't pin down/point blame for the issue
Sent from my Nexus 4 using xda premium

Turning off WiFi when idle at school seems to have helped. I did notice that when I got to my house it seems the battery drain is more normal. Maybe it really is because the WiFi is just slow.
Sent from my Nexus 4

ingenious247 said:
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.
Click to expand...
Click to collapse
did you ever solve this problem? or find out what caused it?

I had a similar issue. My phone would not deep sleep. Yet things would work fine when I wasn't on WiFi. A reboot of my WiFi router fixed it.
Sent from my Nexus 4 using Tapatalk 4 Beta

I got the same problem here with my I9305 after updated to 4.3
It has a bit improvement after I disabled the ALWAYS WIFI SCANNING, and sync

[SOLVED!!]
i have this problem with my galaxy grand phone ,the battery discharges in 20hr , default OS was 4.1.2 official samsung , i changed my rom into a slim custom rom based 4.2.2 , but the battery has same problem again , Android OS battery Usage Was 80% !!!! and screen usage just was 9% !
my installed software :
Viber
WeChat
MyKet {Like Android Market}
Weather Widget
i used wifi 1-2 hour in a day ,
=================================
[SOLVE]
first go to Settings -> Developer Options -> Apps Tab -> checked Don't keep activities
set brightness to auto
then go to location services -> off access my location
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
now go to application manager -> Running Tab -> Force stop some apps with extra ram usage like settings
my phone just uses 5% battery in 13hr sleep mode ; ENJOY!

ohhacker said:
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
Click to expand...
Click to collapse
I think if you only do this you will solve the problem.
At least for me my only problem with "Android OS" is when sleeping my phone and having "keep wi-fi on during sleep -> Always".
I have franco kernel and cannot check the kernel wakelocks but I test some days with CM kernel and didn't see any kernel wakelock that consumes too much battery... but maybe some of you have this problem: http://hardforum.com/showthread.php?p=1039838404

Wow, what a surprise... I solve my own problem with my last reply xD
I mean, when I installed CM months ago I select "keep wi-fi on during sleep -> Always" because I thought that if I don't do this I will not receive any notification. The fact is that when putting "Never" Android OS was CPU active mostly the 80-90% of time my phone was sleeping and Wifi ON and now with "Always" (or when plugged) has CPU active like 20-30%... AND I receive notifications also.
Probably when downloading a large data If I put my phone to sleep It will stop download, I didn't try.
One thing I don't understand is that when sleeping it doesn't use mobile data (as it says "Increases data usage"), even I have data and wifi on.
So, if I get notifications in both options ("Never" and "Always") and I get less battery drain with "Never" I prefer "Never".

mierda1 said:
Wow, what a surprise... I solve my own problem with my last reply xD
I mean, when I installed CM months ago I select "keep wi-fi on during sleep -> Always" because I thought that if I don't do this I will not receive any notification. The fact is that when putting "Never" Android OS was CPU active mostly the 80-90% of time my phone was sleeping and Wifi ON and now with "Always" (or when plugged) has CPU active like 20-30%... AND I receive notifications also.
Probably when downloading a large data If I put my phone to sleep It will stop download, I didn't try.
One thing I don't understand is that when sleeping it doesn't use mobile data (as it says "Increases data usage"), even I have data and wifi on.
So, if I get notifications in both options ("Never" and "Always") and I get less battery drain with "Never" I prefer "Never".
Click to expand...
Click to collapse
You say you receive notifications even with the "never" option, but are you sure its not using your cellular data connection instead?

I've experienced similar problem with GS4 after 4.3 update
I've experienced similar problem with GS4 after 4.3 update
There is a bug in google backup service, google backup service acquires wfii connectivity lock and does not release it for hours which prevents device entering deep sleep and as a result drains battery. Fortunately you can disable backup in Settings->Accounts->Backup and Reset-> uncheck 'Backup my data'. This should resolve the issue ... after a full recharge monitor your battery stats - Android OS should NOT be on the top.
Click to expand...
Click to collapse
Sorry disabling backup didn't help - encountered the same problem. There is indeed a bug that some OS module that holds a wlan lock but it's not a backup service. I suspect that full charge triggers this flow. Device restart will temporarily fix the issue. I'll post if i will find the causer, sorry for mislead.
Download this application it will resolve the problem till google fix it. h_t_t_p://kvant.store.aptoide.com/app/market/com.kvant_hv.BatteryLeakResolver/7/4579526/Battery%20Leak%20Resolver%20(OS%204.3)