What is your take on the WiFi sleep policy. I do like the fact that Wi-Fi can remain on all the time, but will it be a drain on my battery? Is it better to keep the Wi-Fi to sleep on screen shut off? I am near a Wi-Fi connection for most of the day and always at home.
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After noticing my battery was draining quickly, and then after reading this thread, I installed Android System Info to see what was draining my battery so fast. I notice that whenever I would turn on WiFi, the phone will never go to sleep , regardless of what I set the WiFi sleep policy to. After turning off WiFi, the battery still drains heavily.
The WiFi will shut off after 15mins (if you set it to "When screen turns off" or "never when plugged in"). However it seems to keep the CPU on causing it to drain down the battery.
It would seem that whenever WiFi is enabled, the Android system process creates a partial wakelock that does not go away even if you turn off WiFi. The only way to resolve this is by powering off or rebooting the phone.
You can verify this in Android System Info by going into Battery-History-Other Usage-Partial Wake usage to see how much time the "Android System" process holding a partial wake.
I even did a factory reset on the device; and it is still happening so it doesn't appear to be any app that caused the issue. As I said, it works fine as long as I don't enable WiFi.
I already know of two users having this issue, but I'm wondering if folks having battery problems are going through this as well. Is anyone else having similar issues after using WiFi? I'm hoping someone will be able to identify what exactly is putting the wakelock on and we'll be able to find a fix for it. Other than not using WiFi at all or rebooting the phone after using Wifi.
Many of us have experienced some battery life fall out since the last update. I mentioned this in the battery life thread but I thought it deserved it own topic. I have an app that I downloaded called battery status. it has a battery history. and it says time without sleeping 7h 10m 25s ago. Thats exactally when I unplugged my phone. This explains why I am seeing 2-3% per hour loss while not using the phone and while in airplane mode. Before the update I could keep the phone in airplane mode, not usre it, and leave work with over 94% battery life. So this proves that somehow the phone is not going into sleep mode... I can guarantee that everyone else in that is experiencing battery drain since the sept 16th update is due to this reason. The question is... why the hell is this happening and why won't the phone go into sleep mode?
View 8 Replies View RelatedI'm confused about the WifI Sleep Policy. What does it mean for wifi to sleep, does it mean to stop searching? Mine is currently set to "when screen turns off", but I've seen others suggest that it be set to "never".
View 6 Replies View RelatedIf you go to Settings->Wireless and Networks -> Wifi Settings and then hit the Menu button (the one with for squares on the bottom left) and go to advanced there is an option for Wi-fi Sleep Policy. It looks like the default is to turn off wi-fi and switch to mobile data when the screen turns off? Is this the optimal setting? Wouldn't you want it to never turn off (assuming you are in range of wifi)? That way any alerts etc. are all handled over wifi instead of data?
View 3 Replies View RelatedI am trying to write the system setting using:
Settings.System.putInt(getApplicationContext().getContentResolver(), Settings.System.WIFI_SLEEP_POLICY, Settings.System.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED);
But it force closes my application. Any Idea? My has user following permissions:
<uses-permission android:name="android.permission.WRITE_SETTING"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/
I've heard everyone mention that setting wifi to never sleep has helped battery life but I can't figure out where to find the controls for that policy.
View 2 Replies View RelatedAccording to a forum post on Android Central, the Sprint Epic 4G has been experiencing battery drain due to a DRM service running in the background that the Captivate also has. They say, kill the service, save your battery:
View 4 Replies View RelatedI went to bed at 1am and woke up at 10:20am. My battery was at 65% before bed and 44% when I woke up.
I killed all tasks with advanced task killer as I do throughout the day as well. I don't use the email program on my phone nor do I get any notifications for any other programs. My Wi-Fi sleep policy is set to never because I have Wi-Fi at home. Brightness is at a low setting too. So, any ideas what would be draining my battery during the overnight when I'm not using my phone? I don't have problems during the day when I use it.
So I have had my phone since before launch and I have noticed the battery drain as others have but here is my question. Do you think it is the battery or the phone?
If I can go to the store and just get a new battery that would be nice because I have rooted and customized and downloaded apps and if it is the battery that is causing the problem it would be so much more convenient to get a new battery.
Last two days my battery has been draining like crazy and my phone won't go into sleep mode. I charge before I go to sleep and take it off when it's done and it will die before I wake up in about 8 hours .
Use to be at like 97 or 95 when I get up
I've gotten pretty good at managing my battery life , I use superpower and juiceplotter to monitor it .normally I waist less than 1% an hour when not in use and the phone is asleep
I've deleted every app I've installed since 1 day before this started. Only thing unusual I see in my logs is this message (Adding Alarm{464294e8 type 2 com.android.phone })
And this
Alarm triggering: Alarm{46354990 type 2 com.google.android.location} Adding Alarm{465bbb80 type 2 com.google.android.location }non stop repeatedly every second when phone is not in use.
I'm having problem with my Nexus 7. I have Android 4.2.1 on it. I've been using it for about a week now and every night i would turn it off, but in the last few nights, i decided to leave it on sleep mode to see how the battery life was.
On the google site, it says that the Nexus 7 should have 300 hours of standby. Is that the same as 300 hours of sleep? Because when I left my Nexus 7 on overnight, it drained from 55% to 33% in about 8 hours. That doesnt seem like 300 hours to me.
Also, I've tested it again, started at 100%, no wifi, no gps, no apps running in background, no syncing, in sleep mode, and it's draining at about 2% and hour. I've read on this forum that people have been getting like 2% every 8 hours on sleep, or even overnight. I've never used 4.1.1 so I dont have anything to compare it too. Does the 300 hour standby time mean powered off Nexus?
I am new to smartphones and thought that this might be good for others who are new and don't have the unlimited data plan grandfathered in to know.
This was posted in reply to another question I had had about Pandora so the credit goes to poster MeVirtually.
By default the wi-fi setting is set to go to sleep (and use cellular data instead) when the screen is off, which will most likely happen while you are streaming music as well as other things. To change it so the wi-fi never turns off, to into the phone's menu -> wireless and network -> wi-fi settings -> tap the menu button and select advanced which has an option for wi-fi sleep policy that had been defaulted to sleep "when screen turns off". There you have the option to change it to "never" or "never when plugged in".
Every other day I find a point where my phone went to the lock screen but didn't sleep. My battery gets low, less than 15%. Anyone else been seeing this lately?
View 12 Replies View RelatedI know a lot of us are considering returning our Captivates before the 30 day window is up if there isn't a fix released from Samsung for the GPS problems. I wanted to share what happened tonight. Went into a corporate store and explained to the manager that I wanted to simply exchange my phone for another one, being that my GPS wasn't obtaining a lock. A rep overheard our conversation and blurted out that the "Samsung rep that was in yesterday stated that they are working on a fix that will be out in the next 2 weeks". I explained to the sales manager that the "2 weeks" was beyond the exchange period for me, and I wasn't very comfortable about waiting it out. He kindly offered to extend my 30 day exchange period, for another month. He took out his card, and wrote on the back, Captivate exchange, extended and good until 9/15/2010. I would recommend getting into the stores and getting your 30's extended as well! It cant hurt to give Samsung a few more weeks to try and get this fix out before we start returning these phones in mass quantities.
View 4 Replies View RelatedAt home i've noticed that even though I have wifi on, it'll drain 15-20% of my battery over night (8 hours). When I turn the display on it'll show that there's no wifi connection available, but wifi is still enabled. After i turn the display on, it'll quickly connect to my wifi. Is this normal? How do i make it stay connected to my home wifi when the display is off/phone is in standby?
View 7 Replies View RelatedJust to clarify, is there in fact battery pull and drain from BT, Wifi and GPS even if you are not actually using them as there no app running needing them and no icon showing them active in the menu bar?
I am curious if they are sending out polling or searching signals and thus, still draw the battery down? It seem they must, agreed?
Is it a substantial pull? I kind of want to leave them all on, but have started the habit of having them off and just using a widget to turn each on - 1 by 1 - as needed.. but that is kind of a PITA and I wonder if it is not even necessary?
Will toggling Wi-Fi on and off drain your battery? I'm asking this because I read:
[URL]...
Essentially, you want your Wi-Fi sleep policy to be "Never" because when the Wi-Fi sleep policy is "Always," your phone searches for Wi-Fi more often and that drains battery (I think that's what it is saying).
At the moment, I toggle the W-Fi on every time I'm using it and off as soon as I'm done using it in an attempt to save battery. I'm not sure if this actually works or it's actually draining my battery because it would search for Wi-Fi every time I toggle it on.
On my Samsung Galaxy S4, I can't find Wi-Fi sleep policy as mentioned in the article, but I found "Keep Wi-Fi on during sleep." Am I supposed to set this setting as "Always" to save battery life?
I toggle Air View and Smart Gestures on a frequent basis as well--not sure if I should do that too.
I was wondering, if I set wifi off but I keep the global sync option on in the 4.2.2 tiles, does the apps will try to sync even if wifi is off, and then drain a little bit off battery ?
View 6 Replies View RelatedIs it possible to get a refund on the phone passed the 30 days because of the GPS not functioning? I loved the phone till it really sunk in how I paid for a product that missing a key feature. I also ignored the warnings that samsung sucks with updates. Has anyone had any luck returning the phone after 30 days?
View 4 Replies View RelatedI know the WiFi uses less battery than the 3G. My question is should I leave the WiFi on all the time if I only have WiFi at home? Will it be actively searching for a WiFi signal when I am out of range of my home network and drain more battery? I have the Network notification unchecked in the WiFi settings if that helps at all. Basically I just want to know if I should turn WiFi off when I leave my house.
View 14 Replies View RelatedHowever I wonder if it is less of a battery drain to use my WiFi at home / work than to simply use the Sprint network / Ev-Do Rev A?
I figured that since it can read my WiFi easier, it might use less power, then again it is a function on the phone that needs to be launched and therefore might be draining more.
Does Wifi or any preinstalled AT&T apps eat up battery life?
View 5 Replies View RelatedI think I figured out why sometimes my Droid stays on for 1.5 days and sometimes after 6 hour of just being idle the battery is drained.
When wifi is turned on an connected to a network, the cellular signal is way low and it just drains the battery.
Has anyone noticed an increase in battey drain while using the Lookout Mobile Security app? I noticed my battery drain was a little higher than usual today. I also have an app called battery indicator installed and was wondering if those apps cause higher battery drain also?
View 2 Replies View RelatedLooking for an app or widget that will automatically disable 3G and change my phone to 3G (Edge) when the screen is asleep or I press the lock button.and the re enables when I unlock.
View 3 Replies View RelatedI want to drain my battery to the very end and then recharge it so I was wondering what to do to really waste the battery really fast. I have the display on the brightest setting, bluetooth and WiFi on. What apps really drain the battery? I tried Sprint TV but it kicked me off the WiFi
View 17 Replies View Relatedi understand everybody is worried about the speed cap...
but i would really like to know if the battery is getting back to what it before the media hub update? any improvement?
my Samsung s2 on jelly bean 4.1.2 drains battery alot while even in off mode not only that, whenever I press the switch off key the phone won't give me various options of restart, flight mode , sound mode and the likes, the phone will just go into off mode directly.
View 1 Replies View RelatedI've noticed when the phone goes into standby mode (press the right power button), the 3G eventually turns off. Is there a way to prevent that from happening? I'm assuming I can't get any notifications (i.e. Instant Messenger clients, Google Voice, etc.) while the 3G is off, but not sure. I'm also assuming 3G goes into sleep mode, as when I power the phone up I don't see the 3G icon (is that assumption correct?).
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