Database Users

The Xoom has awesome sleep time!

Been too busy w/work to spend time w/my baby. But had time to play with her tonight and just wanted to show how awesome the idle drain is on the Xoom.
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Yeah it is great. I generally lose 0-1% on 8 hours of standby with WiFi on.

yea and yours is stock right? imagine what we can get out of it with more reliable battery saving kernels

It's awesome although I never very high tablet idle because I have a bunch of crap running in the background - GMail, 3 IMAP accounts every 10 mins, Twitter every 15 mins, Facebook every 30 mins, etc etc.
I still get about 8 hours of standby on 10% of battery with WiFi. When I'm on 3G though it drains a lot quicker.

bronxknight28 said:
yea and yours is stock right? imagine what we can get out of it with more reliable battery saving kernels
Click to expand...
Click to collapse
100% stock and not even rooted & yes, my wifi is on 100% of the time!

click on the graph and you will see additional information that will rock your mind.

Why don't you use your Xoom instead of letting it sit idle???

Neo3D said:
100% stock and not even rooted & yes, my wifi is on 100% of the time!
Click to expand...
Click to collapse
when you say wifi on 100% you mean you have the disconnect policy set to never (last option)

z06mike said:
Why don't you use your Xoom instead of letting it sit idle???
Click to expand...
Click to collapse
I laughed.

yea i love it also. If you underclock it like around 912 or 760mhz then you get pretty good battery life for the whole day. If you play any games or watch any videos then you can always go back up
Sent from my Xoom using Tapatalk

I was playing gun bros last night. Played for about an hour but then stopped and got caught up to something else. I didn't quit the game either. I totally forgot I was playing it until recently. The game was on for a whole day. 50% of juice still left
Sent from my Nexus One using XDA App

One thing that caught my eye which seems to not be a problem as it was on my htc incredible is that something (app related) is keeping my xoom awake. For example the xoom batter says its been on for 4 hours and the awake time (under system status) says 4 hours. I couldnt figue out which app was causing this so I did a test to see if this awake time was actually draining battery as it was on my incredible.
In short I charged my battery to 100% before going to bed and restarted xoom to start from 0hours awake and 0hours battery use. Checked it 8 or 9 hours later and saw that my awake time was exactly that of battery use time however my battery read 100% with that much time being awake (by app).
Thus the awake time although drained my incredible does not impact my xoom enough to really care about. Hopefully this may help if anyone else is OCD about awake versus sleep times.

jland22 said:
One thing that caught my eye which seems to not be a problem as it was on my htc incredible is that something (app related) is keeping my xoom awake. For example the xoom batter says its been on for 4 hours and the awake time (under system status) says 4 hours. I couldnt figue out which app was causing this so I did a test to see if this awake time was actually draining battery as it was on my incredible.
In short I charged my battery to 100% before going to bed and restarted xoom to start from 0hours awake and 0hours battery use. Checked it 8 or 9 hours later and saw that my awake time was exactly that of battery use time however my battery read 100% with that much time being awake (by app).
Thus the awake time although drained my incredible does not impact my xoom enough to really care about. Hopefully this may help if anyone else is OCD about awake versus sleep times.
Click to expand...
Click to collapse
IIRC, I read a post somewhere here saying this awake problem was caused by the WeatherBug app (IIRC that is ).

ClydeB1 said:
IIRC, I read a post somewhere here saying this awake problem was caused by the WeatherBug app (IIRC that is ).
Click to expand...
Click to collapse
Yeah I read that as well. I dont have weatherbug though! I dunno what it is, I tried deleting apps and testing and couldnt find the culprit. Seems to not impact the battery whatsoever as I tested it overnight with 100% battery charge and woke up with 100% battery despite being awake all night.
The only thing that stays awake in my running services it seems is my android keyboard so it may be related to that or an app keeping my keyboard awake. All other processes are consistant with the screen on time.

ClydeB1 said:
IIRC, I read a post somewhere here saying this awake problem was caused by the WeatherBug app (IIRC that is ).
Click to expand...
Click to collapse
Weatherbug sure is full of bugs . In fact I used it and deleted it.
Sent from my Xoom using XDA App

It's the latest CNN app, it launches a service which keeps the XOOM awake. It shows up as Android System. If your Android System awake time is high it's CNN.

mobilehavoc said:
It's the latest CNN app, it launches a service which keeps the XOOM awake. It shows up as Android System. If your Android System awake time is high it's CNN.
Click to expand...
Click to collapse
Yep CNN for me too. Its only if u use the widget though it seems. Using the app normally doesn't cause the wakelock.

I'm using Weatherbug on my wifi only Xoom without any problems. I haven't tried the widget, maybe that's where the problem is.

poisike said:
I'm using Weatherbug on my wifi only Xoom without any problems. I haven't tried the widget, maybe that's where the problem is.
Click to expand...
Click to collapse
Yep its the widget problem. It drains battery.
Sent from my Xoom using XDA App

z06mike said:
Why don't you use your Xoom instead of letting it sit idle???
Click to expand...
Click to collapse
cuz i been crazy busy at work taking care of bugs before our release next week! by the time i get home, i just wanna eat shower and go to bed

Battery drain by ANDROID OS

Battery drain by ANDROID OS
5hours 50% battery gone..
now using simply honey 3.3
how to fix it?
>.<

heard a lot abt battery drain in GB ROMS.. but i m on darkys v10rc6(2.3.3).. and i felt the battery was better than v9.5(i.e the 2.2.1 based rom)

last nite after a call..then i slept
wake up saw my fon battery gone >.<

any way to fix it?
is it the problem of TWEAKS and EXT MGR setting?

I tried Tweaky Rom after using Stock JVH and i like the whole Rom and lock screens and etc , but my battery wouldnt last more then 10 hours , flashed back to Stock JVH , rooted , flashed KC1 modem and getting 2 days easy with moderate use , on Tweaky it would drain about 15% every few hours , to bad as i like his ROM a lot
Hitec

u means TWEAKS and EXT4 will cause the problem?

Android OS battery drain issue is explained here.

although people argue wether it works or make sence the following sorted it out for me on dakry v10RC6:
using Titanium Backup
:delete data of
-Samsung Account
-Software Update
and freezing Software update
Afterwards I didn't face the drain agan I no negative sideeffect yet

thanks..
so my phone drained all battery also will solve the problem itself,lol..

alvissswoo said:
thanks..
so my phone drained all battery also will solve the problem itself,lol..
Click to expand...
Click to collapse
just try to wipe batt stats from CWM make sure you full drained battery first and charged to 100% then go to cwm wipe batt stats remove charger and reboot.
**disclaimer some what related
as per codeworkx
Why my phone only charges to 94%/96%?
The Android OS wont ever let you actually charge to 100%, because charging it to 100% would wear-out the battery alot faster then charging it just under maximum.
On Sammy Roms it just usually tells you its at 100%, when its really at 94%/96%
- codeworkx

alexkno said:
although people argue wether it works or make sence the following sorted it out for me on dakry v10RC6:
using Titanium Backup
:delete data of
-Samsung Account
-Software Update
and freezing Software update
Afterwards I didn't face the drain agan I no negative sideeffect yet
Click to expand...
Click to collapse
I was make this few days ago, and my SGS go on boootloop issue....
Regards

okay, strange, I don't face any problem, yet. Even no battery drain.
No as you're more or less forced to do a clean install maybe you'll be luckily afterwards having well working system

miro666 said:
I was make this few days ago, and my SGS go on boootloop issue....
Regards
Click to expand...
Click to collapse
yup,i done it aso..but android os still running n drain my battery
>.<

i just realise tat after i use Websharing/USB to transfer files
the ANDROID OS keep ruuning on background...
sweat..

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even i take out battery or Freeze
problem also appear again =(

get systempanel from market so you can get more details about exactly what process under the system is using the cpu.. but my guess is it is the std suspend bug in gingerbread... that is why i am still running froyo.

I did not found solution too, now I am staying away from gingerbread as far as it is possible.
I could add that my 4 month old micro sd kingston class 4 suddenly got 8 bad sectors maybe ginger was on it for too long...

jbdroid said:
Android OS battery drain issue is explained here.
Click to expand...
Click to collapse
Hitec Wireless said:
I tried Tweaky Rom after using Stock JVH and i like the whole Rom and lock screens and etc , but my battery wouldnt last more then 10 hours , flashed back to Stock JVH , rooted , flashed KC1 modem and getting 2 days easy with moderate use , on Tweaky it would drain about 15% every few hours , to bad as i like his ROM a lot
Hitec
Click to expand...
Click to collapse
jbdroid's link helped me alot on this issue. I'm running Tweaky's and almost did what Hitec did, because the rom would deplete the battery in 6-8 hours occasionally. Stock JVB would last 36 hours on average. So every once in a while I'll pull the battery, sd card and SIM wait a few minutes and re-boot. It's not much of a problem because I have a mix of batteries with different capacities (3500,3000 & 1950 mAh) and I charge them on external chargers exclusively. I also wiped the batt stats and calibrated. I installed a program called Autostart, which kills some services like updates and maps after start-up. Now I get about 20-24 hours use, not as good as stock JVB but acceptable enough to stay for a while on Tweaky's. And the speed is a good trade off over stock.

You are not worried about your nice phone slowly dying ?
Things you did have absolutely no impact on this HUGE GINGER BUG. On darkys 9.5 i have 72 hours standby or more that i have never recorded because of course some usage in the meantime always happens.

UPDATED:Which KERNEL is the best that won't drain a lot your GS2 battery?

As far as I concerned, there are plenty kernels for GS2: KE2, KE7, KE8, KF1, KF2, KF3, KF4, KG1.
But after I flashed the [2.3.4] VillainROM 2.0 for SGS2, I tried two different kernel, they are KG1 and KF2. But I found out KF2 works way better, it can last about 8 more hours than KG1. The kernels are from
http://forum.xda-developers.com/showthread.php?t=1103399
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I did full wipe before I flash the ROM. I use Odin3 v1.85 flash the kernel in the download mode and works perfectly.
SO, the only difference is battery life.
UPDATED:
This morning's screen:
Around 3% drop after 7h.
Not really remarkable, but I guess KF2 is better.
What do you guys suggest?
Please, tell me which kernel you are using, the Rom and the battery life.
Screen shot is WELCOME!
Cheers!

kernel
That sounds unlikely. I didnt test it yet but i will test it. Atm i have KG1.

a question a bit off-topic: Can I flash an stock kernel of a different ROM to my current ROM?
For example:
I'm using the KF3 spanish ROM (2.3.3). Can I flash only the kernel of KG1 (2.3.4) to my ROM?

I have KF2 for a while now, I'm very happy with it.
Did a test a few days back, went to sleep and put the phone in airplane mode, battery was 87%.
When I woke up (8.5 hours later) battery was 85%.
A 2% drop in 8.5 hours, not bad.

While i have no evidence, I too believe this to be true, when i first got the phone I was on KF2, lasted ages, now it struggles for 10 hours. I don't fully understand the android OS so i just do as the ROM devs tell me.

Bit more complicated than just a kernal is battery drain .
Firmware modem apps running all can play a part .
jje

I am using litening ROM 2.1 with KG1 kernel for a few days now and I think battery was better on KF2 so I switching back to KF2. I participate in the poll when I am sure which gives more battery life.

Off-topic: I have lost count about the number of updates that Samsung released in different parts of the world. But sure that there were atleast couple of updates for every region.
Once the GS2 is released in US (if at all it's released there), there will be 1 update in 12 months and there will be countless articles in every blog. Somehow updates just don't roll out in US.

KF3 Kernel KE7 modem Villain 1.4 rom no battery complaints .
Once 2.3.4 becomes a full release i shall try that .
jje

Could you post your screen capture of the battery usage, either of the kernels would be fine. If you can post both of them, I will be really appreciate that.
I will post my screen tomorrow.
Sent from my GT-I9100 using XDA App

I don't think a kernel has too much to do on battery life. But Push email exchanges, Active Sync and some apps. Use ATK, problem solved.

I'm using Lite'ning 2.1, bloatware removed, sync on - I take my phone off charge at 8.30am, it's normally on my desk not being used for around 3 hours and unless I start using it, the batt has never dropped below 100%.
I'd like to leave it longer to see just how long it will stand by for on 100% but I want to use me phone!

diablous said:
While i have no evidence, I too believe this to be true, when i first got the phone I was on KF2, lasted ages, now it struggles for 10 hours. I don't fully understand the android OS so i just do as the ROM devs tell me.
Click to expand...
Click to collapse
I am having trouble with the batter at the moment. I am using villainrom 2.0 with KF2 now, using xda app for about 25min and my 13% is gone. Last night, I am using KG1, I turned the phone into the flight mode, after 9h, the battery drained from 98% to 26%. That was really strange. I have nearly 150 apps installed, most of them are small simple apps like for finance, business, social networking, tools, not much background running apps.
I wish someone can explain to me.
Sent from my GT-I9100 using XDA App

While the Android OS bug still reigns supreme, stock KG1's battery life is unparalled for me, as long as I keep WiFi off. With WiFi on, Android OS is always higher than 50% and the battery life is crap, but it has always been like that on all kernel versions up to now.

aydc said:
While the Android OS bug still reigns supreme, stock KG1's battery life is unparalled for me.
Click to expand...
Click to collapse
Are you using 2.3.4 stock rom?
Sent from my GT-I9100 using XDA App

liuwenaz said:
Are you using 2.3.4 stock rom?
Click to expand...
Click to collapse
Yep.. I just froze some Samsung crap like Social Hub with Titanium Backup and added a percentage battery indicator with UOT Kitchen. Other than that it's all stock.

aydc said:
While the Android OS bug still reigns supreme, stock KG1's battery life is unparalled for me, as long as I keep WiFi off. With WiFi on, Android OS is always higher than 50% and the battery life is crap, but it has always been like that on all kernel versions up to now.
Click to expand...
Click to collapse
Wifi on Battery dropped 13% in 21 hours .
Android OS 24%
KF3 Kernel KE7 modem Villain 1.4 rom
jje

JJEgan said:
Wifi on Battery dropped 13% in 21 hours .
Android OS 24%
Click to expand...
Click to collapse
The bug that I'm suffering from only kicks in with certain routers like mine.
I lose 25% in 6,5 hours with WiFi on and the phone left completely idle. Thank you Samsung. Great coding...

Sounds like the wifi sharing bug! Fixed in version KE7 upwards. What version are you using?

ithehappy said:
I don't think a kernel has too much to do on battery life. But Push email exchanges, Active Sync and some apps. Use ATK, problem solved.
Click to expand...
Click to collapse
I use ATK all the time, I don't have Push email exchanges, I only have Google Account Sync and whatsapp sync in the background.
I also use autorun manager which prevents some services restarting.

Great battery life!

Info:
Codename droid (latest 2/16/2012 i think)
Matrix kernel 17 (plan to update to 17.5 later) cfs
200min 1200max
default gov and scheduler
default voltages
display was at about 20% (above 50% is just blinding with voodoo)
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Off the changer at about 7am then listen to music for awhile to drown out some boring teachers! then some games at lunch. A few texts here and there and calls for about 10 minutes. Its now 12:27 and I still have 67% battery!
I gotta put it on the charger before I go to bed so I can start fresh tomorrow.

Battery life varies GREATY with usage; a good indicator of usage would be your on-screen time.
What is your on-screen time?
Also we have another similar thread here:
http://forum.xda-developers.com/showthread.php?t=1517524
Why did you create a new one ...?

There is another thread like this one with real usage battery life...
That being said, I agree that this combo has awesome battery life. I'm using it myself. I froze a few pre-installed apps, and turned auto sync off, and my phone seriously dropped 1% overnight with wifi on. That's pretty amazing. I don't have deep idol on, stock voltages, and 200/1200 with interactiveX.

rocket999 said:
There is another thread like this one with real usage battery life...
That being said, I agree that this combo has awesome battery life. I'm using it myself. I froze a few pre-installed apps, and turned auto sync off, and my phone seriously dropped 1% overnight with wifi on. That's pretty amazing. I don't have deep idol on, stock voltages, and 200/1200 with interactiveX.
Click to expand...
Click to collapse
Could you tell us what apps you froze?
Does it really help saving more power?
Thanks.
Sent from my iPad using Tapatalk

glennkaonang said:
Could you tell us what apps you froze?
Does it really help saving more power?
Thanks.
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
I don't have my phone on me right now, so I'll post what I froze in a minute. Freezing apps stops them from using up RAM and CPU time. In turn that saves battery. It doesn't save as much as turning off the auto sync though.

my phone was 1 day and 15 hrs without a charger but this rom have bugs like home buttom not working screen close (need to be like old tv) etc etc....

I turned off auto sync and backup but my battery still drains pretty fast even when on 2G all the time.
I've frozen Maps and Talk but that doesn't seem to help.
I noticed that my phone awake time is high enough when the screen off although it can go to deep sleep normally.
I also noticed that Google Services has high % of battery use.
Any idea of what I'm doing wrong?
I'm sure that I have turned off auto sync.
But this Google Services still drains my battery.
Sent from my iPad using Tapatalk

rocket999 said:
There is another thread like this one with real usage battery life...
That being said, I agree that this combo has awesome battery life. I'm using it myself. I froze a few pre-installed apps, and turned auto sync off, and my phone seriously dropped 1% overnight with wifi on. That's pretty amazing. I don't have deep idol on, stock voltages, and 200/1200 with interactiveX.
Click to expand...
Click to collapse
How exactly do you "freeze" an app?

glennkaonang said:
I turned off auto sync and backup but my battery still drains pretty fast even when on 2G all the time.
I've frozen Maps and Talk but that doesn't seem to help.
I noticed that my phone awake time is high enough when the screen off although it can go to deep sleep normally.
I also noticed that Google Services has high % of battery use.
Any idea of what I'm doing wrong?
I'm sure that I have turned off auto sync.
But this Google Services still drains my battery.
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
What phone do you have? I have a 4g, so it's on CDMA. I know that the auto sync takes up more power on CDMA networks then it does on GSM. Do you have GPS on? What about your NFC? Those both take up battery.
How exactly do you "freeze" an app?
Click to expand...
Click to collapse
There's an app on the market called titanium backup. You can "freeze" apps so they aren't running and don't show up anywhere. It stops them from running in the background.

I have an i9023, the GSM one.
Yes I've turned off almost all that my phone doesn't even deserve a title of smartphone.
Clean install of ROM is done already.
Sent from my iPad using Tapatalk

You have to freeze apps like Google + Google wallet ( stuff you never use) just make sure the system does not need it or you'll run into issues. Also use a task killer but disable auto kill and only kill when u need too.
Sent from my Nexus S 4g using xda premium

Task killers are a waste of space. When will people learn how to exit apps properly and know that the android system handles its memory just fine on its own?
Sent from my Nexus S 4G using xda premium

airkernel battery life!!!
Want to show you the rusults of testing AirKernel 3.2 (very smooth on 200-800 MHz and CFQ+SmartAssV2).

novic_dev said:
Want to show you the rusults of testing AirKernel 3.2 (very smooth on 200-800 MHz and CFQ+SmartAssV2).
Click to expand...
Click to collapse
Which rom are you doing this with?
Sent from my Nexus S using Tapatalk

glennkaonang said:
I have an i9023, the GSM one.
Yes I've turned off almost all that my phone doesn't even deserve a title of smartphone.
Clean install of ROM is done already.
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
Describe clean install?
Do you did format boot and format system?
If that not help..
Flash stock rom..use it for a few days..
Then flash back custom rom
Sent from my GT-I9100 using xda premium

Battery Life Issue (Is this normal battery life)

I've been noticing my battery has been draining a lot lately, and the majority is going to Android System. I did a search and found another post about this with no answers. I'm not getting much more than 12 hours on a daily basis, and I hardly use my phone. I'm including a screen shot of the battery usage. Is this a normal usage amount? I remember this phone being better on battery than this.
What are you guys getting for typical usage?
Anyone have any suggestions?
https://www.dropbox.com/s/q4axktwglfqg4ac/Screenshot_2014-10-23-21-11-07.png?dl=0
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philc21 said:
I've been noticing my battery has been draining a lot lately, and the majority is going to Android System. I did a search and found another post about this with no answers. I'm not getting much more than 12 hours on a daily basis, and I hardly use my phone. I'm including a screen shot of the battery usage. Is this a normal usage amount? I remember this phone being better on battery than this.
What are you guys getting for typical usage?
Anyone have any suggestions?
https://www.dropbox.com/s/q4axktwglfqg4ac/Screenshot_2014-10-23-21-11-07.png?dl=0
Click to expand...
Click to collapse
as of yesterday, I'm seeing the same problem. Didn't have short battery life before that but several apps updated yesterday morning and now I have something like 50% on Android System and an unusually high "Stay Awake" - we're talking something like 10 hours when I wasn't using the phone for anything in particular - certainly not 10 hours worth!
So, I'm wondering how we tell what is keeping a phone awake?

usually we need more info such as what rom your using and when it started to happen..
second post might be one of the apps thats causing it so id backtrack them n see if u can find the culprit
Sent from my SM-G900V using XDA Free mobile app
---------- Post added at 05:31 AM ---------- Previous post was at 05:30 AM ----------
also, better battery stats on xda is your friend.. android system can be a ton of different things
Sent from my SM-G900V using XDA Free mobile app

I had big time battery issues when I was running NI2, and similar to what you were seeing Android System and Kernel, my battery would be nearly drained after about 10 to 12 hours. I rolled back to NE9 and my battery is back to being great I am usually at about 60% after about 10 hours. For what it's worth apps and programs were the same between both builds. Not sure this is much help just figured I'd share my experiences and what worked for me.

scadilla said:
I had big time battery issues when I was running NI2, and similar to what you were seeing Android System and Kernel, my battery would be nearly drained after about 10 to 12 hours. I rolled back to NE9 and my battery is back to being great I am usually at about 60% after about 10 hours. For what it's worth apps and programs were the same between both builds. Not sure this is much help just figured I'd share my experiences and what worked for me.
Click to expand...
Click to collapse
This was the solution I feared. I'm having massive battery drain on NI2 as well. Unfortunately, won't we lose "HD Voice" or VOLTE if we roll back to NE9? Not a deal breaker I guess.
It's really too bad Samsung/Verizon broke the phone with an update. This is seemingly pretty common now. Hope another small update gets released soon. I'm on international travel starting Friday and having a phone dead by 3pm doesn't sit very well with me.
-Collin-

CollinFX45 said:
This was the solution I feared. I'm having massive battery drain on NI2 as well. Unfortunately, won't we lose "HD Voice" or VOLTE if we roll back to NE9? Not a deal breaker I guess.
It's really too bad Samsung/Verizon broke the phone with an update. This is seemingly pretty common now. Hope another small update gets released soon. I'm on international travel starting Friday and having a phone dead by 3pm doesn't sit very well with me.
-Collin-
Click to expand...
Click to collapse
Yes, you will lose HD Voice / VOLTE unfortunately. That was a sacrifice I had to take I couldn't deal with my phone being dead by 5:00pm.

agreed. Yesterday was a complete joke. By 2pm with light use, I was down to 21%. Dead by 3:30.
I hate that I have to flash my phone back to a prior version because Verizon/Samsung broke it.

CollinFX45 said:
agreed. Yesterday was a complete joke. By 2pm with light use, I was down to 21%. Dead by 3:30.
I hate that I have to flash my phone back to a prior version because Verizon/Samsung broke it.
Click to expand...
Click to collapse
it is what it is.. there are ni2 roms with great battery.. few have reported battery drains but not me.. ive tried a few ni2 roms and not had a battery drain since before ni2
Sent from my SM-G900V using XDA Free mobile app

CollinFX45 said:
agreed. Yesterday was a complete joke. By 2pm with light use, I was down to 21%. Dead by 3:30.
I hate that I have to flash my phone back to a prior version because Verizon/Samsung broke it.
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Wake lock detector and greenify are your friends...

My about phone.

so, after posting the second post in this thread I'm happy to post that my battery consumption returned to normal by the next day. I don't know what was going on but I'm still on NI2 and regular battery consumption - what I've been used to seeing on the phone all along.
that said, it's great to know about some of the apps that are available for better tracking/info about wake-locks and battery use.