WiFi battery drain, using Continuum v5.6 - Captivate Q&A, Help & Troubleshooting

I'm having pretty bad battery drain using WiFi.
Here is a screenshot of juice plotter, have a look :
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View attachment 623738
I'm currently on Continuum v5.6 . I was also having this problem on 5.4 and earlier on cognition.
I don't have any 3G or gprs. Just WiFi.
With WiFi on and connected I get bad battery drain(10% in 90 minutes) even when wifi is not in use and phone is sitting idle as you can see above.
When I turn WiFi off or WiFi on but not connected, I get essentially flat curves with a battery drain of like 1-2% an hour. What gives?

I get fast battery drain just like you, with wifi on at home. My router is D-Link Dir-655. Some people say they get low battery usage with wifi turned on, so I'm beginning to think it's more to do with the router than the phone. I've had the problem from day one. My first phone developed the random shutdown issue and was replaced by AT&T. The second phone is just the same running down the battery fast when wifi is on. I have gotten in the habit of turning wifi off when I'm not using it. It's a pain, but I don't know anything else to do. I'm certainly not going to replace my router just because of it.

creepyncrawly said:
I get fast battery drain just like you, with wifi on at home. My router is D-Link Dir-655. Some people say they get low battery usage with wifi turned on, so I'm beginning to think it's more to do with the router than the phone. I've had the problem from day one. My first phone developed the random shutdown issue and was replaced by AT&T. The second phone is just the same running down the battery fast when wifi is on. I have gotten in the habit of turning wifi off when I'm not using it. It's a pain, but I don't know anything else to do. I'm certainly not going to replace my router just because of it.
Click to expand...
Click to collapse
I have that same exact router! DIR-655.
I saw another thread in the dlink forums where a guy had that same router and the same issue. Here : hxxp://forums.dlink.com/index.php?topic=38655.0 (replace xx by tt)
Here as well : http://forum.xda-developers.com/showthread.php?t=1087278
Though he solved it by removing some HP printer drivers that were polling the LAN constantly.
Most people recommend leaving WiFi sleep policy to never, but I get better battery when leaving it to sleep on screen off. But thats just because wifi turns off about 10 minutes after screen is off so push updates like instant messages/email stop working until the screen is turned on again. (No 3G here)
I have acquired another captivate which is running the stock rom. I'm gonna run some tests on it.

The second captivate also does the same thing.
I can see a constant trickle of data from wifi using the OS Monitor App when not using the wifi and background data is set to off. Its something like 200 bytes every 3 seconds. Accordingy the wireless light on my router also keeps blinking, albeit at a significant slow rate..

Can the timeout for "Turn wifi off when screen off" be reduced to a few seconds instead of minutes??
I have a Zyxel WAP and a SonicWall router/firewall. So its definitely not Dlink only.
I see the same pattern as lurkingdevil.

I lose 5% in 10 mins with wifi on it sucks. It also depends on which apps are running in the background and which ones update like Facebook or email

TheSoaresan said:
I lose 5% in 10 mins with wifi on it sucks. It also depends on which apps are running in the background and which ones update like Facebook or email
Click to expand...
Click to collapse
I feel you..
I have now turned on 3G and it doesnt burn battery like wifi.
In OS Monitor when using 3G there is a static tx/rx value unless I do something that requires data transfer .
On the other hand with wifi on, tx/rx keeps going up even with everything off, some data is always transfering between router and phone...
I think there is some setting in the router that is causing this..

I love the whole android development game but I don't think I'm techsavvy enough to mess with my router, ill stay tuned nonetheless incase some brave soul experiments and gets results

I just switched to continuum 5.6 last night, but was constantly charging while using wi-fi. Ill look into it tonight to see if it affects me in the same way.

TheSoaresan said:
I love the whole android development game but I don't think I'm techsavvy enough to mess with my router, ill stay tuned nonetheless incase some brave soul experiments and gets results
Click to expand...
Click to collapse
Ok so I dived into my router settings.
Good news is that I managed to nearly fix this issue. I have a DIR-655 , D-Link has done a great job by making a firmware emulator here : http://support.dlink.com/Emulators/dir655/133NA/login.html
Login with user : admin pass: admin
From the tabs at top choose ADVANCED --> ADVANCED WIRELESS (left pane)
Now you will see a bunch of things that have some value set to them. Here I changed DTIM from 1 to 200 . After doing this, I set wifi sleep policy to never and kept my phone aside. Checking after an hour and I had lost only 1%.
Bad news is that push notifications have gone flaky, I dont know what exactly the DTIM thing does so I'm still researching it. You can click on the "More.." link on the right pane and there is some info on it.
EDIT: I switched DTIM back to 1 and push is still not working perfectly. Can you guys check this?
Set WiFi sleep policy to never and log in on gtalk from the phone. Then send yourself some messages via another google account and see if you hear the notification sound on the phone when the screen is turned off. You might hear it the first time but try sending a bunch of consecutive messages.
For me, I hear it sometimes, sometimes I don't, but if I turn on the screen right after sending the message(and not hearing the notification) I can see the message in the status bar at the lockscreen.
EDIT 2: During my previous tests, I was logged in from my account on the pc as well as the phone. Notifications seem to work much better if I'm just logged in from the phone.

Found another thread including the DIR-655 :
http://forums.precentral.net/palm-pre-pre-plus/228500-your-router-your-battery-drain-2.html

Related

How To Modify The WiFi Sleep Policy

I am sorry if this was already found.
I know alot of people were complaining about the wifi shutting down when the screen timeout occurred. I found a setting in Spare Parts that changes the wifi sleep policy. My NC battery died and is charging so I didn't get a chance to see how well it worked but hopefully it helps.
I set mine to never. I also found that a some of the lg apps posted elsewhere here install and work on the nook.
I for one cannot wait for the roms. This thing kicks serious ass in it's infancy... imagine if someone like cyanogen came on board.
Agreed.. Once Bluetooth is active and hopefully CM6 comes to play this puppy should perform quite well (mouse on screen ya!).. I'm amazed that the 3D games (mainly Gameloft) play so well right off the bat..
I did the same thing in Spare Parts and can verify that the Wifi stays active. I know because K9 on my NC beeps at me a second before my phone chimes when I get an email, even when it's been locked with the screen off for hours.
johnopsec said:
I did the same thing in Spare Parts and can verify that the Wifi stays active. I know because K9 on my NC beeps at me a second before my phone chimes when I get an email, even when it's been locked with the screen off for hours.
Click to expand...
Click to collapse
How does this affect battery life though? I imagine if Wifi is always connected and getting email, it should be a serious drain on the battery...
wifi on = battery drain
peiziyu said:
How does this affect battery life though? I imagine if Wifi is always connected and getting email, it should be a serious drain on the battery...
Click to expand...
Click to collapse
Yes it would so use judiciously.
I set mine to never turn off wifi automatically, and then I just use a wifi widget (either the power control widget that's already there) or Beautiful Widgets wifi toggle to turn it off when I'm not using it (during the day at work for example).
I have mine set to never...Still cuts wifi when the screen sleeps.
Any other tricks to try? I need wifi to remain active....
jdposhkus said:
I have mine set to never...Still cuts wifi when the screen sleeps.
Any other tricks to try? I need wifi to remain active....
Click to expand...
Click to collapse
I've tried Wifi Lock as well as Spare Parts, and have the same result. Wifi still sleeps.
Spare Parts did not work for me either. I've yet to try Wifi Lock.
Wifi Lock works for me...
Ok.. I read all the posts I could find and installed Wifi Lock, this is the only one I tested and works great for me. (Tested using Pandora radio)
This is what I did:
1- Install Wifi Lock (Android Market)
2- Reboot Nook Color
3- Go to your Extras and run the app. (It doesn't have a user interface, it only displays a message every time you click on it: Default / Never)
4- If you are using Advanced Task Killer (or any other) make sure you deselect Wifi Lock and add it to your Ignore List (I did it right away, I guess that's a VERY important step)
I just tested it several times for about an hour using Pandora radio, I have no idea how much it will drain the battery... If something goes wrong I'll let you know...
Is this policy of keeping wifi on based on nooks that do not constantly reboot themselves, which is an issue many of us are having. there is a huge thread clarifying a partial fix for the rebooting based on killing wifi when the screen is off.
I am having pretty good results with "WiFi Manager" in the marketplace.
never mind - my bad, info was not correct, so sorry
slugbug2010 said:
If you don't set your wifi to never sleep, then when it DOES sleep it will scan. Scanning is a battery drain. Wifi never sleep is better.
Click to expand...
Click to collapse
This is absolute nonsense.
Wifi never sleep is a massive drain on the nook battery. Its better on a phone because when the wifi shuts off the phones data turns on and uses more battery. The nook has no data connection so when wifi is off it uses next to no battery life.
notinterested said:
This is absolute nonsense.
Wifi never sleep is a massive drain on the nook battery. Its better on a phone because when the wifi shuts off the phones data turns on and uses more battery. The nook has no data connection so when wifi is off it uses next to no battery life.
Click to expand...
Click to collapse
Thank you. My bad, I apologize for the bad information.
My problem was a bit different than everyone else's, because when my wifi shut off during sleep, I would have to manually reset my router in order to get the NC to recognize it. Needless to say, this was a huge pain, because we have a lot of devices in our home depending on the wireless router, including our cable boxes.
So, I've been using WiFi Lock on the NC for the past two days. So far, it's only lost the wifi signal once, and I was able to turn it back on within the Nookcolor. Hopefully this will last, because I will gladly take that over having to reboot our rooter.
I would like to pass along some info on an app that I “highly” recommend for controlling the Nook Color’s WiFi. For the last few days I’ve been using “Green Power FREE battery saver”
The beauty of this app is that you can control the “automatic” ON/OFF of WiFi based on when the screen turns off. With it setup to turn off the WiFi with a 0 second time delay I have eliminated all random reboots when the system goes into sleep mode. Also as soon as the screen comes back on it automatically turns the Wifi back on, and my Nook reconnects in about ten seconds. I have tested this in both Infrastructure and ADHOC modes (tethered to my phone) with no problems what so ever.
norkoastal said:
Agreed.. Once Bluetooth is active and hopefully CM6 comes to play this puppy should perform quite well (mouse on screen ya!).. I'm amazed that the 3D games (mainly Gameloft) play so well right off the bat..
Click to expand...
Click to collapse
I thought that CM was going straight the CM7 for the nook?
Sent from my LogicPD Zoom2 using XDA App
Update
I have tried Wake Lock, Spare Parts, and WIFILock. I saw the most success with WIFILock but it has been failing lately. I'm going to try Soft Locker next and see what happens.
TJNooker said:
I have tried Wake Lock, Spare Parts, and WIFILock. I saw the most success with WIFILock but it has been failing lately. I'm going to try Soft Locker next and see what happens.
Click to expand...
Click to collapse
The Nook wifi problem sounds very much like the issue the ZTE blade has, I've made an app that creates a wakelock whenever you turn the screen off (if wifi is enabled).
Let me know if it works!
Market Link - Advanced Wifi Lock
QR code
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[Q] My Friends Galaxy S is going flat in 24h without using it? Any ideas?

My friend is having problems with her galaxy s battery going flat even when not in use in about 20h (without using it.)
Any ideas
I checked for running aps
What might i try
Or is the battery faulty?
Can you help
it is normal if you enable data
Sent from my GT-I9000 using XDA App
yup it's normal
cheers for the replies.... but i don't understand them
what does she have to do?
I have the same phone, and make phone calls and surf the web and still have more battery in the evening.
her phone is just in her bag all day?
galaxy44 said:
I have the same phone, and make phone calls and surf the web and still have more battery in the evening.
Click to expand...
Click to collapse
What apps does she have installed which you don't?
For example, if she uses the Facebook/Twitter apps and they're updating themselves every 10 mins as opposed to every hour (or even manually) then her battery will get eaten alive!
PrinterElf said:
What apps does she have installed which you don't?
For example, if she uses the Facebook/Twitter apps and they're updating themselves every 10 mins as opposed to every hour (or even manually) then her battery will get eaten alive!
Click to expand...
Click to collapse
i think she has a facebook app i'll check whats different to my phone.
Also I installed a few battery type app to see if things are different on her phone.
Any other ideas suggestions welcome
Do check the running services!
Check what services are running!
AlexAlien1966 said:
Check what services are running!
Click to expand...
Click to collapse
how do i do that? in the task manager?
I also turned the sync to her facebook app to 'never' .
Turn GPS off when not needed and WiFi when not needed that usually helps. Also when wifi is on turn off notify me about new networks. Make sure screen brightness is set to automatic also.
if she has live wallpapers thats a bad ideea for a lasting battery, live wallpapers use cpu.. cpu user electricity, and the battery gets empty really fast. i`m runing ~ 40hours with nonstop wifi or data mode activated, depends on my locations, 1 push email runing 24/7 skype 24/7 and i talk for about 10-30 min per day... so... install cpu temp v2 and uncheck the screen timeout (set it to 10 minutes) and let the phone on the table and look at the cpu tempv2 if the cpu drops to 1-5 % @100mhz , if it doesn`t drop below 10 percent @100mhz then you have some nasty apps that are not idle.
if im in an area where i get 5 bars i can get more battery life while using my phone for a while, than I would if I am in an area where i get no connection or an area where my connection is constantly dropping. This is because the phone constantly tries to connect to the service provider and uses up tons of battery doing it.
galaxy44 said:
I also turned the sync to her facebook app to 'never' .
Click to expand...
Click to collapse
Perhaps a bit early to tell, but has it made any difference?
galaxy44 said:
how do i do that? in the task manager?
I also turned the sync to her facebook app to 'never' .
Click to expand...
Click to collapse
Go to Settings -> Applications -> Running Services and check what is shown.
(Switched my phone to English language to ensure the names above are correct). Do the same if your language is not English and you are still worried.
Cheers
Alex
galaxy44 said:
My friend is having problems with her galaxy s battery going flat even when not in use in about 20h (without using it.)
Any ideas
I checked for running aps
What might i try
Or is the battery faulty?
Can you help
Click to expand...
Click to collapse
I have 2 days battery life with medium usage, download a stripped rom and keep it basic on the widget/wallpaper/amount of apps.
Download damiangto 1.2 gold underclock to 800 mhz (or keep it at 1000 mhz, but it doesnt change so much in speed for me)
undervolt by steps. as long as your phone doesnt die in sleepmode you can go lower. Im undervolting at -100 without any problems.
Download superpower or juicedefender. I have good experiences with both, using superpower at the moment and its free and good.
black backgrounds and themes are better for battery life because of the Super AMOLED screen.
You dont have to totally discharge your phone before charging it, charging whenever possible is actually better for long term battery life.
Hope this helps
Thanks for the replies everyone
I'l check all of the information out
I installed
Battery mix (has discharge graph)
Smart battery
Battery eta (has Discharge rate)
I swapped batteries with mine (hers still discharged too fast)
annoyingly it mucked up the battery discharge statistics because my battery was full when i put it in her phone.
She doesn't really muck about with her phone, very few apps or wallpaper etc.
I just go crazy with mine.
my battery discharge (with loads of use see CPU graph)
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her battery use (phone was in her bag not used all day at work)
she was in a different location to me. see no CPU activity either
I looked in running services
mapslocationfriendservice (latitude) was 26% mine was about 9
and android system was higher on her phone
I mucked about unnistalled and installing maps using market and titanium backup
also I installed OCLF on her phone (one click lag fix) because it is on my phone. also the battery apps were slowing it down.
In short
her battery is plummeting about 3 hour if its in use and 11 in standby
its not the battery
i think is something to do with the android system.
probably latitude
but i could be wrong
I'll have another crack at it later.
Worst case i could master reset and restore titanium backups of her texts and contacts and stuff. but I like to sort it out
Cheers for the advice, I'll check it all out.
I'll post back if there any change in the situation
quick update
Her phone appears to be running better
I think it was google maps latitude update.
I cant 100% be sure.
but the result of the stuff i tried on the above post seemed to have changed her phone from the poor performance it suddenly started getting.
I am thinking of trying out 'superpower' and or 'juicedefender' on mine and her phones in the future.
Thanks for the tips everyone

[Q] Battery Problems - falling from 70 to 0 %

Hello,
i have a bad problem with my LG starting from day one when i bought it. I tried many things now, to no avail.
The problem is that sometimes my battery falls from high percent value to 0 just in one second. then the mobile goes out and i have to charge it, even it was nearly full some minutes ago.
Another problem is a warm mobile in standby mode when i have mobile inet active, and battery wont last longer than 4 hours. With WIFI it doesnt get warm but starts to decerase RAM until the mobile is unusable (timeouts, freezes, ect)
So there are 3 problems, i think related together somehow:
1. sudden Akku drainage, falling from high percent value to zero
2. fast akku drainage with mobile inet on, doesnt fall from #to zero, but get used up very fast
3. Unusable mobile due to RAM issues when WIFI activated.
Here are following some pics and a Log attached from Android Stats. Here you can see starting at 9.34 the bettery recalculations, in very short timeframes.
Can someone see any issues from the log what could be the problem?
The situation was like this: I recharged yesterday evening, and turned mobile inet on. Then i went to sleep. In the morning i saw that i had no connection to google servers (icons white instead on green) but i saw the battery was only drained 2% over night so i thought not bad.
I reactivated internet (mobile) in hope to get conn to google servers. Well, i got it but in same time the battery got drained from 98% to just 40% in one second. Since then the mobile stays warm. I have auto sync deactivated.
LOG
http://a-wo.com/00/asi_logs-20120208-095928.log
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I forgot:
Android 2.3.4 original, rooted but nothing changed on firmware/rom/baseband/anything
So i inserted screens now.
you have some kind of background application that doesnt let your phone enter deep sleep mode to lower cpu frequency and conserve battery (phone is awake when screen is not on, you can see the activity in the pictures). you should check what app is using most of the CPU time, it might not be code optimized and might be sucking too much of the battery.
also, it might help resetting the battery stats, search a bit and find some info on that (short version, charge it to 100%, let it for another hour plugged in, go in CM, delete battery stats, restart).
worst case scenario, your battery is busted and a replacement might be needed. hope that helps.
andrei.je said:
just a hint : most battery consumption can be checked in the battery stats, on the activity graph : awake vs screen on - if awake and screen on are not synced in the activity graph (should have same lines) then you have a problem. meaning when your phone has its screen off it should go into deep sleep mode (lower cpu frequency) but if you the phone is awake while screen is off, you have an application installed that won't let your phone sleep and just keeps using the cpu and sucking the battery.
this is mostly applied to standby battery life, if you are playing a game/watching a movie, doesn't really matter screen is on, cpu/gpu is sucking the battery.
my worst battery life while i had the O2X was about 16h, but that's with normal phone use (no games - you can have a psp for that, no music - you can have an ipod for that), mostly emails, browsing, IMs, calls/texts all day long also best battery life was 2d 10h (mostly on standby)
Click to expand...
Click to collapse
Thanks for also answering my post on the other topic.
It may be that theres an app that keep our phone from sleep, but even with this app, when i dont turn on wifi or mobile internet, the mobile runs 6 days straight. This is no joke, offline it could hold 6 days, i have a screen of where it looses 8% in 28 hours. And as you can see on my screen, it happens from one second to the other.
I already changed the phone the third time now, even with very few installed apps, this remains. I had it first time on day one when bought th mobile. Since then in all 3 mobiles maybe 15 times.
Anyway, it bothered me, but not as much as that the phone went nearly unusable with internet active. Always at 50 mb ram. So it was basically an offline only phone. In my 2 tests, both 5 days without internet, the mobile neither went slow, nor went off, nor lost battry, nor anything. Very fast LG OS. Until internet...
Anyway, now i installed Chuck Norris CM /MIUI ROM, lets see what happens. Until now its so smooth and soft, it feels like a complete other mobile. Also with wifi active... but i cannot say anything until tomorrow.
I tested already a lot of System Analyzer apps but theres really not much to see. Nothing seem to use much battery in whole. At least nothing that explains a loss of 70% in 5 seconds.
I posted a log here, thats the best thing to see i guess, but i cannot really read it well :-(
Anyway, your help is appreciated
Click here to see log
Saenchai said:
Thanks for also answering my post on the other topic.
It may be that theres an app that keep our phone from sleep, but even with this app, when i dont turn on wifi or mobile internet, the mobile runs 6 days straight. This is no joke, offline it could hold 6 days, i have a screen of where it looses 8% in 28 hours. And as you can see on my screen, it happens from one second to the other.
I already changed the phone the third time now, even with very few installed apps, this remains. I had it first time on day one when bought th mobile. Since then in all 3 mobiles maybe 15 times.
Anyway, it bothered me, but not as much as that the phone went nearly unusable with internet active. Always at 50 mb ram. So it was basically an offline only phone. In my 2 tests, both 5 days without internet, the mobile neither went slow, nor went off, nor lost battry, nor anything. Very fast LG OS. Until internet...
Anyway, now i installed Chuck Norris CM /MIUI ROM, lets see what happens. Until now its so smooth and soft, it feels like a complete other mobile. Also with wifi active... but i cannot say anything until tomorrow.
I tested already a lot of System Analyzer apps but theres really not much to see. Nothing seem to use much battery in whole. At least nothing that explains a loss of 70% in 5 seconds.
I posted a log here, thats the best thing to see i guess, but i cannot really read it well :-(
Anyway, your help is appreciated
I think the problem is caused by the battery stat file. Avoiding the techinical causes you should only charge the phone untill 100% and using battery calibration (you can donwload it for free from market) calibrate the battery! Hope to be helpful ^_*
Click to expand...
Click to collapse

[Q] Can someone explain how forgetting wifi networks improves battery?

Sorry if this is a stupid question. But i read somewhere that forgetting (deleting) wifi networks would help battery. For me, this actually worked. Im not a power user so my phone will be idle for hours at a time. Coming from an iphone (i know its not a fair comparison cuz iphone is more lightweight), i would lose ~5% during 9.5 hours of work if i never took it out of my pocket. On the gnote3, i sometimes get 15%-20% drain even with a screen time of ~30min. But after forgetting the wifi networks, drain is reduced to 5%-10% within that 10 hours im working. So can anyone explain why after a few weeks, my battery will start to drain quicker again until i forget my 2 wifi networks (work and home)? As a disclaimer, that 5% on the iphone is when i literally didn't take the phone out of my pocket at all. I am playing with my gnote3 more than the iphone (the newness still hasn't worn off for me yet), but i wanted to throw the iphone stats in as a reference.
JTY87 said:
Sorry if this is a stupid question. But i read somewhere that forgetting (deleting) wifi networks would help battery. For me, this actually worked. Im not a power user so my phone will be idle for hours at a time. Coming from an iphone (i know its not a fair comparison cuz iphone is more lightweight), i would lose ~5% during 9.5 hours of work if i never took it out of my pocket. On the gnote3, i sometimes get 15%-20% drain even with a screen time of ~30min. But after forgetting the wifi networks, drain is reduced to 5%-10% within that 10 hours im working. So can anyone explain why after a few weeks, my battery will start to drain quicker again until i forget my 2 wifi networks (work and home)? As a disclaimer, that 5% on the iphone is when i literally didn't take the phone out of my pocket at all. I am playing with my gnote3 more than the iphone (the newness still hasn't worn off for me yet), but i wanted to throw the iphone stats in as a reference.
Click to expand...
Click to collapse
Well I'm not certain if it actually works this way or not. But here's a theory..... If you have a bunch of stored wifi access points and aren't connected to any, the phone might be looking for those connections? But isn't it looking for wifi anyway? Maybe if you don't have stored access points it doesn't look so often? That's my theory on this situation that I've never heard before but anything is possible because it's the internet!!! The easier fix to this without deleting your wifi access points is to disable wifi all together. You can even add a shortcut to your homescreen!
If you really want to get to the bottom of this and find out what was happening I would install Wakelock Detector. Even when you're not using your phone because it's locked in your pocket, rogue apps or processes can wake your cpu. This app will tell you what's waking your device and draining the battery. If your device is rooted I HIGHly recommend getting Greenify. You can choose to hibernate apps directly from the wakelock detector app. Now how cool is that!!
I like what ^he said. Only if your WiFi is constantly on but not connected it will constantly be scanning which will impact battery. If its connected but a weak signal this will also impact battery life poorly, same as constantly connecting and disconnecting. I leave all my WiFi on all the time at home and over 10 hours of non use only drop 2% or less. However in your WiFi setting there is a setting that has an option to disable WiFi when asleep. If your always pulling your phone out to play with it and have this option enabled then every time you turn your phone on it will scan for a network. And turn back off when you turn the screen off. I am not a fan of this option and for better battery life leave your WiFi on all the time UNLESS you don't have a network to connect to. If you're connected leave it on, if not turn it off. I recommend to set it up like this.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my SM-N900A
RErick said:
I like what ^he said. Only if your WiFi is constantly on but not connected it will constantly be scanning which will impact battery. If its connected but a weak signal this will also impact battery life poorly, same as constantly connecting and disconnecting. I leave all my WiFi on all the time at home and over 10 hours of non use only drop 2% or less. However in your WiFi setting there is a setting that has an option to disable WiFi when asleep. If your always pulling your phone out to play with it and have this option enabled then every time you turn your phone on it will scan for a network. And turn back off when you turn the screen off. I am not a fan of this option and for better battery life leave your WiFi on all the time UNLESS you don't have a network to connect to. If you're connected leave it on, if not turn it off. I recommend to set it up like this.
Sent from my SM-N900A
Click to expand...
Click to collapse
I've got the same setup as you! It seems to work for me as you can tell by my battery stats.
What I usually do is I just take a few seconds to disable everything other than mobile data when I'm out and about. If I need to check emails I do so with a manual sync, unless it's during work or on-call hours (Gotta keep them servers running 24/7!) in which case I leave on autosync.
I try to never leave location on unless I need to use Maps, and because of that I keep all the stuff that's supposed to use WiFi even when WiFi is off disabled as well. I'm sure there's fifty ways I could automate all of this into profiles but I like the manual control over my battery consumption.
I haven't run numbers but I've kept the phone uncharged for almost two days with no problems. I was even able to make it back to home on the last 5% with three or four subway stops and plug her in before she died. And that's with the default battery.
I think it's more about overall mindfulness of what processes are running versus an insane level of finetuning for the process. If you make sure A) that WiFi is disabled, and that B) WiFi is *REALLY* disabled, meaning no scanning for networks or being used for location services, then even if you have fifty networks saved it won't scan for any of them.

[Q] - Android OS high battery consumption on 4.4.4 when connected to WiFi

Hello.
My XT1058 is running 4.4.4 at the moment.
I've noticied that when connected to a good WiFi, Android OS starts consuming battery.
It seems to only happen on my WiFi.
Signal strength should not be an issue, since connection is at about -60db.
I've a Linksys E900 running DD-WRT.
It's configured as N-Only, and running WPA2 Personal AES security.
I would not think it's a router's firmware issue.
Would you be able to assist?.
Thank you.
Is your phone always awake?
It's hard to tell.
It's not showing as "active" in the battery graph...
I've also installed System Monitor Lite, which tells me that the phone is actually going into deep sleep.
Today I've drained the battery until the phone shut off, and then charged it while powered off until 100%.
So I do not have more than a few hours of this deep sleep measurement.
But, slowly but surely, now back at home connected to WiFi, I'm noticing that Android OS is gaining a few % points each hour...
It's quite hard for me to ping point what's causing this issue, and was not able to find anything certain.
It's not location services, because it should happen on other wifis as well...
Thank you.
I had a similar situation with Android System eating a lot of battery, but my phone was always awake (solid bar in the battery stats) . Turned out it was backup to Google servers. I've unticked "backup my data" under Backup and Reset in settings and my phone goes to sleep now and battery is back to normal (4 hours of sot).
No, that is not what's happening here.
Phone is not active all the time, it's about 79% in deep sleep according to System Monitor Lite, and 12% at 300 or so mhz...
I've installed another firmware to my router, and the issue is still present.
Battery is draining while connected to wifi as hard or even harder than on 3G mobile data.
Went to sleep, and after some hours of not using the phone, this is the result:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
You can see that the incline of the graph while being on wifi is steeper than on 3g. Also, Battery Drain app tells me that drainage is about 3-4% per hour, while it's below 3% being on mobile data.
Enviado desde mi XT1058
I was able to run wakelock detector without rooting...
It turned out that there were some heavy wakelocks referring to nlpwakelocks.
I've read about those, and should be related to location services. But I didn't have location history enabled, and was already using battery saving as location configuration.
I also disabled location and rebooted the phone, without success...
So I decided to perform a hard reset on the phone...
I'm going to run it for a few days, and will report back
Enviado desde mi XT1058
How are things going after the reset?
Junky228 said:
How are things going after the reset?
Click to expand...
Click to collapse
It worked ok for about 2 days, then the drainage reappeared.
I was able to run wakelock detector without rooting.
It seems there are a few wakelocks that are related to location services.
I was under the impression it was solved by forcing location services processes. It worked of for almost a week, but after connecting to another WiFi at another home, issue appeared again back at home...
So, summing up: I was not able to solve it yet... It has something to do with location services.
Aww that's a bummer, well good luck to you. I would try the whole root and use the xposed module to stop the wakelock, but since I'm on Republic Wireless and 4.4.4 there's no method of rooting for me.
It's something related to location services. I don't know what exactly.
It's quite odd, because for some reason Android seems to go south without any apparent reason, and starts getting fixates with location... and then, without me doing anything, it stops...
I've noticed that when this happens, if I'm using GPS as high accuracy, while having the screen on GPS icon would start appearing frequently on the task bar. That icon would be present for about 5-10 seconds then disappear. Then, after a few seconds or minutes, again, and again, and again...
This is not app related to me...
Enviado desde mi XT1058
Hello.
It's been a while, and to be honest I forgot about this topic.
In fact, it was reminded to me while creating a new one, to tell you what I've discovered.
I've narrowed down the issue, and I think I know what's happening, but I have no idea on how to fix it, or why is it even happening...
It turns out it's not related to location services, since I've disabled them altogether...
But issue still remains...
It seems the drainage appears while connected to the wifi, and the desktop that's connected to the same wifi router is on...
Oddly enough, item that appears on the top of the battery usage is "Android OS", and nothing related to WiFi.
Also, idle time while issue is not present (that is, on wifi and desktop off) is superb...
I do not really know how could I fix this issue.
Any insights will be appreciated There's no network traffic while the issue is happening, because I've a meter installed on Android that tells me 0kb/s traffic.
PC is running Windows 7 64-bits, router is a Linksys E900 running DD-WRT firmware.
Thanks.
Believe it or not, after uninstalling ES File Explorer, issue disappeared... Not sure what's wrong with that app that makes Android OS crazy... But after weeks (or even months) after uninstalling the app, Android OS is not draining battery anymore...
Enviado desde mi XT1058

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