Battery drain overnite - Nook Color General

I have gotten up to find our nook dead a couple of mornings. It doesn't happen all the time so I wonder what it could be. Has anyone else seen this before? We would have over a half charge each time. I have a task killer running but I wonder if it could be something else I'm not seeing?

Occasionally, my wifi doesn't sleep correctly when I turn off my Nook and my battery drains signifantly more as a result...

Seems to depend on which ROM you are using. CM7 uses the most battery during standby and stock seems to use the least.

planepilot said:
I have gotten up to find our nook dead a couple of mornings. It doesn't happen all the time so I wonder what it could be. Has anyone else seen this before? We would have over a half charge each time. I have a task killer running but I wonder if it could be something else I'm not seeing?
Click to expand...
Click to collapse
Do you have Titanium Backup scheduled? If so, see here:
http://forum.xda-developers.com/showpost.php?p=11698291&postcount=5

No I don't have titanium installed. I may check the wifi. I know that it happens more after I use it than my wife. Of course I am downloading and running more apps than her.

Download an app to turn wifi off when the screen is off. I had the same issue plus random reboots before I did the above.
Sent from my Droid using XDA App

Related

Battery sucking down fast

I've got my autonootered 1.1.0 NC and it is working great. The only thing is the battery seems to be running out really fast on this. On my wife's autonootered 1.0.1, the battery isn't running out nearly so slow and we have all the same apps, although some of mine, since it's newer, may be more recent versions.
One thing I noticed is that she has very little time on "Android system", whereas 2/3 of the drain on mine is from that. The only apps that typically run though are advanced task killer and batter indicator. I regularly shut down everything else.
I've also renamed phone.apk and the telephony(something).apk on both of them as well.
Is there anything that will deep dive into "android system" on battery use? There are no rogue apps running (at least according the task killer). Or any suggestions?
First thing I'd suspect are live wallpapers followed by widgets. Verify that you have a plain wallpaper and remove any widgets that you would anticipate are doing frequent polling of any kind. I'd remove that battery indicator one and see if that helps.
Sent from my nook color using Tapatalk
Running zeam with plain nook wallpaper (just like on my wife's nook). No widgets. Am seriously wondering about the battery use thing though.
doncaruana said:
The only apps that typically run though are advanced task killer and batter indicator. I regularly shut down everything else.
Click to expand...
Click to collapse
Like I suggested, uninstall that battery indicator app. You didnt mention which one it is so for now based on the only info youve provided thats the only advice I can give.
In one test I did on my nookie froyo install I'm running, I tried a new spruced up kernel and ran a battery status widget. The widget caused the nook to stay out of deep sleep and also out of lower clock speeds when idle resulting in horrible battery life.
Are you running setcpu on either or both nooks and if so are they set the same?
Sent from my nook color using Tapatalk
Try systempanel lite task manager by nextapp in market. It might help show ram and cpu usage of things.
Sent from my nook color using Tapatalk
When not using wifi turn it off. That will save you some battery life as well.
Keep the suggestions coming
The battery app is "battery indicator". It is usually running on both nooks, but mine has a more recent version I think (this is my main suspect right now).
We always kill the wifi when not using it, so I know that's not it. Also not running setcpu on either.
I sucked down probably 5-10% while just reading with only "advanced task killer", "battery indicator", and the stock reader running for less than an hour last night.
I'm going to try systempanellite and see if that tells me anything. Also going to charge it up to 100%, boot into CMR and reset the battery stats.
If it is the battery app, wondering how to find the older version to downgrade to, or maybe just find a different one, I suppose...
45 minutes of simply reading and went from 99% all the way down to 88%. No battery utility. Systempanellite (only running for a few of those minutes) didn't really show anything sucking either.
Only other difference I can think of now is that I disabled OTA updates on my wife's nook.
I wonder if I just got a bad nook, battery wise...
doncaruana said:
45 minutes of simply reading and went from 99% all the way down to 88%. No battery utility. Systempanellite (only running for a few of those minutes) didn't really show anything sucking either.
Only other difference I can think of now is that I disabled OTA updates on my wife's nook.
I wonder if I just got a bad nook, battery wise...
Click to expand...
Click to collapse
So ~10% from about ~1 hour of use? Might be a little high for just reading, especially if your brightness is low and your wifi is off. However, I note a 10% per hour discharge with average use. I get about ~2% or so overnight loss with screen off and wifi off.
Rooted 1.1, Monster root pack. Overclocked with Dalingrin's kernel.
Looking at the two nooks, side by side, I notice that on mine, AFfileDownloadService and CloudService are background, while on my wife's, they are 'Service'. When DeviceManagerService is running, that is also background on mine and service on hers.
Could that be why the "Android system" is sucking so much battery? SystemPanel doesn't show anything sucking cpu....
I know it's supposed to be around 10 hours, but that works out to be about 7 hours reading a small, simple epub, which has me concerned.
I did lower the brightness on mine to match my wife's exactly. It was less than halfway, but heres was lower, right in between the two esses at the end of 'brightness'.
A more deliberate test shows 1% drain every 5 minutes (almost exactly) while just reading. That's a little over 8 hours and still less than I expect. Maybe I need to tweak the brightness a little more...

Battery Drain. Help!

I have experienced it a couple of times in the 8 months or so I have had my Captivate (Galaxy S). One time it was due to a rogue application that was using heaps of CPU. Using OS monitor I discovered that an app/process had a load running consistently up at 50% or more.
Uninstalled the app, problem solved. For months I was getting 48-60 hours out of a single charge, which was absolutely brilliant.
Now I have a new battery drain, and it's proving very difficult to find. Checking OS monitor didn't help. No app sticking out like dogs balls hogging CPU this time.
I tried the advice in this thread;
http://forum.xda-developers.com/showthread.php?t=937080(preview)
Gone through it from end to end, and the battery drain is still there. The thread tells me I should be using roughly 1% per hour while on standby. Current widget tells me I am using 1% about every 5-8 minutes, which gives me 8-12 hours of battery life.
I have gone back and uninstalled a heaps of apps I no longer use, as well as uninstalling apps that I installed around the start of the time I noticed battery drain began. No good.
Checked all my settings, even experimented with turning off background sync (which I dont think is the problem, as I had it on when I was getting 2+ days of battery life), no good.
Using Titanium Backup, I went through and began "freezing" a couple of apps at a time, thinking I could find the application causing it that way. I sorted my apps by install date and started going back in time 2 or 3 apps at a time. No good.
However, I think I may have found a clue...
The other day, I turned my phone onto Flight mode, I can't remember why now. Anyway, I realised a few hours later that I forgot to turn Flight mode off. Looked at my battery and noticed, it had hardly dropped at all! Weird. As far as I can tell, I have the phone set up the way I did when I had great battery life. In some cases, I have even tried doing things I did not do when battery life was good (turning off background data, wifi etc). I still can't pinpoint the problem.
Who else has experienced battery drain on Android? What did you do to combat it? It's just frustrating knowing what my phone and battery are capable of and not being able to achieve it!
I have has that a couple of times too. The only way I have found to make it stop when it starts is to do a reboot. Like you it doesn't appear to be any specific app, the os is just eating battery. Once I reboot its great again. Hope this helps
Sent from my GT-I9000 using XDA Premium App
Well from a lot of different articles I have read, having a weak signal around you can cause a drain on the battery. The fact that the phone has to try to grab the signal harder than it should on top of getting then losing and having to re acquire the signal drains the battery.
I haven't done any tests myself but I find that I get great battery life when using the phone heavily while at home on the wifi network.
Sent from my Nexus One using XDA Premium App
jferg5 said:
I have has that a couple of times too. The only way I have found to make it stop when it starts is to do a reboot. Like you it doesn't appear to be any specific app, the os is just eating battery. Once I reboot its great again. Hope this helps
Click to expand...
Click to collapse
Nah it's not that easy unfortunately. It's a problem I have had for a couple of months now. There has been many reboots in that time, none have solved the drain.
The only thing that did was putting the phone into airplane mode, which then make it a nice-looking paperweight.
FLAC Vest said:
Well from a lot of different articles I have read, having a weak signal around you can cause a drain on the battery. The fact that the phone has to try to grab the signal harder than it should on top of getting then losing and having to re acquire the signal drains the battery.
I haven't done any tests myself but I find that I get great battery life when using the phone heavily while at home on the wifi network.
Click to expand...
Click to collapse
It may be that, but I don't think so. As I said, I had great battery life using this ROM, and in the same locations as I do now with terrible battery life. I haven't moved, I still use the phone where I did before.
Cheers for the responses anyway guys. I appreciate it.
Google maps is a known battery drain even if not using it thanks to latitude trying to determine where you are. I would try freezing or uninstalling Google maps.
Sent from my GT-I9000 using XDA App
F1reEng1neRed said:
Google maps is a known battery drain even if not using it thanks to latitude trying to determine where you are. I would try freezing or uninstalling Google maps.
Click to expand...
Click to collapse
Thank you so much! It appears you are right. I "froze" Maps using Titanium Backup, and for 40 minutes my battery has been steady at 24% while on standby. Brilliant! Usually in that time I would drop 3-5%.
Now, the next question. How do I stop it? Does this mean I can no longer use Maps? I don't even use Latitude, but I see no option to uninstall it anywhere. Everything in it is turned off.
Not sure how to proceed from here. I do use Maps from time to time and would like to keep them if I can.
Just un-freeze it when you need it.
One thing that I did was start resetting my phone right before bed to terminate all the programs that I used through out the day.
Sent from my GT-I9000 using XDA Premium App
I have just upgraded to Serendipity 7, we'll see if that fixes the problem. If not, I may have to freeze Maps while not in use.
Well, after a battery calibration I am now getting 24-30 hours with moderate use. A long way from the 48-60 hours I used to get, but a lot better than the 10-12 hours of recent times. So I am half as well off as I was 3 months ago, but twice better off than I was a week ago.
Happy enough for now. Just wish I could pinpoint how I was getting that great battery life before!

Galaxy note over heating (System UI hogging CPU)

Hi,
I've a G-Note running ICS-4.0.3 , i recently noticed my phone is getting really hot and resetting automatically at times, on closer investigation i see 'CPU spy' data showing my phone running constantly at 1400Mhz mode!!! wanting to find which process is doing this, i downloaded watchdog lite and noticed that 'System UI' process is running at 49% approx CONSTANTLY, killing it re-spwans the process!! any idea whats causing this?? Please Help!!
Not rooted, never flashed, on original upgrade, have nova launcher, use it rarely. no other launchers installed.
Restart fixes this sometimes, sometimes not.
Thanks in advance,
Ramgo.
ramgo89 said:
Hi,
I've a G-Note running ICS-4.0.3 , i recently noticed my phone is getting really hot and resetting automatically at times, on closer investigation i see 'CPU spy' data showing my phone running constantly at 1400Mhz mode!!! wanting to find which process is doing this, i downloaded watchdog lite and noticed that 'System UI' process is running at 49% approx CONSTANTLY, killing it re-spwans the process!! any idea whats causing this?? Please Help!!
Thanks in advance,
Ramgo.
Click to expand...
Click to collapse
Have you installed anything lately?
galaxynotes said:
Have you installed anything lately?
Click to expand...
Click to collapse
Not that i can think of as a problem, been happening for a while now, could be any of the app! i have like 200 installed!!
Now its not system UI, its android syste, badass battery monitor shows kenel to have taken most of the battery (which seems mostly loop task, is this bad) and then android core process.
ramgo89 said:
Not that i can think of as a problem, been happening for a while now, could be any of the app! i have like 200 installed!!
Click to expand...
Click to collapse
well try to remember from which app on this issue showed up.I had battery drain problem turned out it was because of an app that I had installed.So I unistalled it and my problem went away.Yours should be easy to spot try unistalling the recent apps or the ones you're suspicious of and see when you get deepsleep.
Check your battery status and see for the battery eater apps
Sent from my GT-N7000 using xda premium
danteoo7 said:
Check your battery status and see for the battery eater apps
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
its android system process now, badass battery monitor shows kenel to have taken most of the battery (which seems mostly loop task, is this bad) and then android core process. Not something i can uninstall, i have done a lot of analysis before reaching out for help!
galaxynotes said:
well try to remember from which app on this issue showed up.I had battery drain problem turned out it was because of an app that I had installed.So I unistalled it and my problem went away.Yours should be easy to spot try unistalling the recent apps or the ones you're suspicious of and see when you get deepsleep.
Click to expand...
Click to collapse
I infact got deep sleep the whole day, 15 hrs just 10 percent drained! this problem has been occuring intermittently, deep sleep is still happenning, but when the phone is screen ON, its in the highest mode.
Hmm things got complicated.Like I said if everything used to be normal then all of a sudden this problem began then it should be an app I suppose?!Just like my case.
Install OS Monitor and see what's hogging your cpu maybe you can pinpoint the application if that's the case.
did anybody have a problem with Gsam battery monitor after it was upgraded from Badass battery monitor??? i was looking at it and was showing 100% battery drain due to application ( 0% for screen and phone radio)!! i have uninstalled it and seems fine i guess! atleast for now! charging now and its in the expected 200Mhz state.
galaxynotes said:
Hmm things got complicated.Like I said if everything used to be normal then all of a sudden this problem began then it should be an app I suppose?!Just like my case.
Install OS Monitor and see what's hogging your cpu maybe you can pinpoint the application if that's the case.
Click to expand...
Click to collapse
Yes will do that!! Thanks! read my comment below, i think GSam Battery monitor submits some task or makes some query to the kernel which makes it to go in a loop, hence the android system seems to be using more CPU and not battery monitor itself
The problem is back!! HELP!!
I checked OS monitor, nothing seem to be hogging, occasionally android system, overhearting near the camera and resetting automatically, please HELP!!!
ramgo89 said:
I checked OS monitor, nothing seem to be hogging, occasionally android system, overhearting near the camera and resetting automatically, please HELP!!!
Click to expand...
Click to collapse
same here
http://forum.xda-developers.com/showthread.php?t=1770414
Hello,
I'm having a similar problem. When my Note is in standby sometimes it overheats without any apparent reason and battery drains very fast.
I haven't been able to trace the origin of this problem. I'm running on ICS 4.0.3 stock and no ROOT.
marcofs said:
Hello,
I'm having a similar problem. When my Note is in standby sometimes it overheats without any apparent reason and battery drains very fast.
I haven't been able to trace the origin of this problem. I'm running on ICS 4.0.3 stock and no ROOT.
Click to expand...
Click to collapse
Have you installed any kind of launcher on your phone? If you have, do try to uninstall it for now. Install BetterBatteryStats, turn off any data connection.. 3G, Wifi, Bluetooth.. Remove any Live wallpapers(just use a static one), Uninstall any apps that connect or syncs online.
The last thing I could advice you is turn off Airplane Mode (at night), charge up your phone to 100% and just leave it for a day. Check back on BetterBatteryStats after on what apps/wakelocks is triggering the overheating.
letters_to_cleo said:
Have you installed any kind of launcher on your phone? If you have, do try to uninstall it for now. Install BetterBatteryStats, turn off any data connection.. 3G, Wifi, Bluetooth.. Remove any Live wallpapers(just use a static one), Uninstall any apps that connect or syncs online.
The last thing I could advice you is turn off Airplane Mode (at night), charge up your phone to 100% and just leave it for a day. Check back on BetterBatteryStats after on what apps/wakelocks is triggering the overheating.
Click to expand...
Click to collapse
Lot's of work... I'll have to find some time to try all of that.
Thanks.
Early last week my Note started to reboot whitout any apparent reason. It happened 2 to 3 times a day. Specially in the morning when battery was still above 60%.
The overheating also happened from time to time but not everyday.
Saturday I figured I had to do something extreme to end this.
First I downgraded to a pre-rooted GB rom. Afterwards wiped the GB rom. Then upgraded to stock ICS. Everything worked out fine and was very easy to perform, thanks to all the guides available on XDA.
Last of all I rooted the ICS.
Until now the Note hasn't overheated or rebooted again.
I really thought it would be harder to do all this. But now I think it would take me about 20 min to do all these procedures.
Thanks to all the people that posted the guides on XDA.
Keep it in the deep freeze for 10 minutes it shall solve your problem
Sent from my GT-N7000 using free xda app-developers app for poor people
Whiskeyjack4855 said:
Keep it in the deep freeze for 10 minutes it shall solve your problem
Sent from my GT-N7000 using free xda app-developers app for poor people
Click to expand...
Click to collapse
I'll take that as a joke.
Three days in and still no unwanted reboots or overheating.
Gents if you have nothing constructive to provide in assisting the users with real help, please refrain from off topic mindless humor. Thank you.
A week after I've re-flashed ICS on my Note, the unwanted reboots have come back.
It must be some app I've installed again or maybe something much worse. I've read lots of threads and was wondering if a custom kernel and a different ROM might solve this problem.
One thing I've noted, the reboots never happen at night only during the day (mid-morning and mid-afternoon).
Any new ideas to help me find the source of this problem?
EDIT:
I'm running on LPY Kernel, so wipe is not an option...

Battery Usage and Battery Usage Graph error?

My battery graph is acting really crazy. It started happening immediately after the GB update... Is there a way to fix it?
P.S. - its actually been unplugged for 14 hours so far with really little usage.
LyghtSpeed said:
My battery graph is acting really crazy. It started happening immediately after the GB update... Is there a way to fix it?
P.S. - its actually been unplugged for 14 hours so far with really little usage.
Click to expand...
Click to collapse
Can't see the image, and we'll need a bit more information to provide you any sort of guidance. I have a similar situation where my battery information doesn't update for a while, I know why mine is doing that though, and I'd love to help diagnose yours, but please tell us:
What ROM are you running?
What baseband are you running? (If you don't know this right off the bat, we may be able to discern from the ROM you are using, especially if you're using stock)
Any task killers installed on the phone? If so, have you tried switching them off to see if a background process is being wrongly killed?
Cynagen said:
Can't see the image, and we'll need a bit more information to provide you any sort of guidance. I have a similar situation where my battery information doesn't update for a while, I know why mine is doing that though, and I'd love to help diagnose yours, but please tell us:
What ROM are you running?
What baseband are you running? (If you don't know this right off the bat, we may be able to discern from the ROM you are using, especially if you're using stock)
Any task killers installed on the phone? If so, have you tried switching them off to see if a background process is being wrongly killed?
Click to expand...
Click to collapse
Im all stock. I have an app killer, but this problem has happened a while before i downloaded the app killer.
Here is the screen shot of all my android info
.View attachment 1220085
LyghtSpeed said:
Im all stock. I have an app killer, but this problem has happened a while before i downloaded the app killer.
Here is the screen shot of all my android info
.View attachment 1220085
Click to expand...
Click to collapse
You said something about hardly using it? I find that when I'm not actively using mine (no app, just sitting locked on my desk) it doesn't update the battery graph, it's caused some weird displays like the power level suddenly jumping or dropping to a significantly different level (green to red in one instance) even though the battery percentage was correct according to the graph. Nothing like yours though... I'd check into the battery, or getting a replacement phone.
lg botched the battery usage graph in gingerbread i think samnos roms have a fix for it im not 100% sure though its not your battery my graph does this to but battery is just fine.
Anything that is V21e or based on it will fix that problem. It is a common bug on any custom and stock ROM older than v21e
Sent from my LG-P925 using xda app-developers app

Battery Drain?

When I got the phone my battery was pretty phenomenal (comparatively speaking). But it seems since I took the update that Sprint pushed out a few weeks ago, the battery can't make it more than a few hours with light/moderate use. Its really horrid to be honest. Hoping the eventual 4.2.2 OTA will fix this. But in the meantime I wanted to know if anyone else was having this issue and possibly help identify the source of the problem. (By the way I am not rooted)
daltonroland said:
When I got the phone my battery was pretty phenomenal (comparatively speaking). But it seems since I took the update that Sprint pushed out a few weeks ago, the battery can't make it more than a few hours with light/moderate use. Its really horrid to be honest. Hoping the eventual 4.2.2 OTA will fix this. But in the meantime I wanted to know if anyone else was having this issue and possibly help identify the source of the problem. (By the way I am not rooted)
Click to expand...
Click to collapse
Have you checked the version of your Google Play Services APK? It can cause a particularly nasty bug on HTC devices.
Rirere said:
Have you checked the version of your Google Play Services APK? It can cause a particularly nasty bug on HTC devices.
Click to expand...
Click to collapse
Play Services is v 3.1.36 but the actual Play Store is v 4.1.10 which is said to "fix battery drain issue." Still seems to be draining pretty rapidly. Any fix you know of?
Can we see your usage stats?
daltonroland said:
Play Services is v 3.1.36 but the actual Play Store is v 4.1.10 which is said to "fix battery drain issue." Still seems to be draining pretty rapidly. Any fix you know of?
Click to expand...
Click to collapse
The Play Store update should have also pushed Play Services, so yeah. Could we see your usage and also your app list/sync settings?
I'm in the same boat, even after the Google Play Store fix.
Seriously, we need usage stats.
Sorry, been working in home WiFi.
Hardly been using the phone since I still have my old Evo LTE and the battery is better on that.
Sent from my HTCONE using xda app-developers app
Sent from my HTCONE using xda app-developers app
Wifi used up 43% of 60% of your battery? That's like a quarter of your battery gone! Am I the only one who thinks that's weird? Can we see the graph and awake time etc? (Sorry for the trouble, but it's the only way we can tell)
---------- Post added at 11:44 AM ---------- Previous post was at 11:34 AM ----------
daltonroland said:
Sorry, been working in home WiFi.
Click to expand...
Click to collapse
Just wanted to ask, what does that mean? (Not trying to be negative in any way)
sauprankul said:
Wifi used up 43% of 60% of your battery? That's like a quarter of your battery gone! Am I the only one who thinks that's weird? Can we see the graph and awake time etc? (Sorry for the trouble, but it's the only way we can tell)
---------- Post added at 11:44 AM ---------- Previous post was at 11:34 AM ----------
Just wanted to ask, what does that mean? (Not trying to be negative in any way)
Click to expand...
Click to collapse
Well, in fairness for the last week or so I've been charging the phone and leaving it in my room. The screenshot was after like a day and a half in which a hardly used it and had WiFi on.
By working on home WiFi I meant talking to ISP and bumping up speeds, for the second time in a week.
I'll post the graph when I get home from work or early tomorrow as the phone has been unplugged for about 20 minutes.
Sent from my HTCONE using xda app-developers app
It won't hurt if you actually use it. Watching vids/playing games prevents blown up stats like that.
EDIT: Please, also include stats like screen time, awake time, cell reception, Wifi etc.
This was at work. I hardly use my phone at work fyi.
Sent from my HTCONE using xda app-developers app
Dropped 25 ish percent in 6 hours? What seems to be the problem?
With your usage, that would give you a day. I'm happy with 11 hours.
But with no internet connection and hardly any use. It concerns me because usually it would drop 5 maybe 10%. It was great on sleep.
Sent from my HTCONE using xda app-developers app
OK, now that I think about it, you're right. I remember getting more than 2 days on standby with absolutely no use (on wifi).
A day with that kind of usage is really not that good. It's weird because your stats don't show anything odd. I'd like to see some moderate to heavy usage stats though. The kind you say gives you 5 hours. That would help more.
Here you go. About 50% gone in about an hour of use (on WiFi) mostly on YouTube/Twitter or music with regular use of ATK.
Sent from my HTCONE using xda app-developers app
I'm having a serious battery drain issue with my Sprint One also, though I don't remember exactly when it started - it might very well have been that OTA update.
My battery drains when the phone is asleep. The phone will be dead in just over 24 hours from 100%, with less than one hour of screen usage. The integrated "usage" monitor shows that WiFi consumes this power , whether or not WiFi is in use. I have a paid task manager app that can track stats over time, and according to it, the processor appears to be running at ~15% constantly when the screen is off. I've tried disabling WiFi and having the phone sleep on just the cell network, to no avail. I first thought that perhaps the poor service at my house was causing it. However, I watched the battery drain at exactly the same rate when in an area with perfect coverage.
Here's the weird part - I tried airplane mode'ing my phone. Airplane mode doesn't seem to stop it. In fact, airplane mode seemed to accelerate the drain! I find it simply unacceptable that my phone will die like this with almost no usage.
I feel that the problem is not a rogue third-party app I have installed. I've used the "disable" option on Facebook, Twitter, and I've removed several other suspected apps. It makes no difference. I even suspected my task manager app; I tried removing it and looking at the integrated one, and there was no difference.
flyboy21141 said:
I'm having a serious battery drain issue with my Sprint One also, though I don't remember exactly when it started - it might very well have been that OTA update.
My battery drains when the phone is asleep. The phone will be dead in just over 24 hours from 100%, with less than one hour of screen usage. The integrated "usage" monitor shows that WiFi consumes this power , whether or not WiFi is in use. I have a paid task manager app that can track stats over time, and according to it, the processor appears to be running at ~15% constantly when the screen is off. I've tried disabling WiFi and having the phone sleep on just the cell network, to no avail. I first thought that perhaps the poor service at my house was causing it. However, I watched the battery drain at exactly the same rate when in an area with perfect coverage.
Here's the weird part - I tried airplane mode'ing my phone. Airplane mode doesn't seem to stop it. In fact, airplane mode seemed to accelerate the drain! I find it simply unacceptable that my phone will die like this with almost no usage.
I feel that the problem is not a rogue third-party app I have installed. I've used the "disable" option on Facebook, Twitter, and I've removed several other suspected apps. It makes no difference. I even suspected my task manager app; I tried removing it and looking at the integrated one, and there was no difference.
Click to expand...
Click to collapse
Check to make sure never auto turn on Wi-Fi is checked in Wi-Fi advanced settings. I was going to suggest poor reception since that kills my battery, but you mentioned trying airplane mode.
With screen off and nothing running, it's not surprising that Wi-Fi is the main battery drain. But it is too fast in my opinion too.
Sent from my HTCONE using Tapatalk 2
Is high performance Wi-Fi disabled?
Sent from my HTCONE using xda app-developers app

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