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Hi there. Ive had my Nexus One for nearly a month. I barely use it but ive noticed that the battery goes down EXTREMELY fast. Looking at it right now, it says it has been unplugged for 13 hours, 11minutes, 54 seconds with 28% of battery left. Earlier today I was at 4 hours something with 48% left.
It says Cell Standby is using 35%, Phone Idle using 33%. Thats 68% of my battery and all my phone really does it sit on the desk next to me.
Why is it like this? Also, how can i make it last longer?
Thanks for all the help
Sounds like you are in a spotty coverage area. That explains why the Cell Standby is using so much battery trying to hang on to the 3G connection.
How many bars do you have? and which N1 model is it? TMO or AT&T?
Also do you use wifi?
Hi there Thanks for the reply . I actually turned my 3G off, and now just running on a 2G conection. I thought maybe it was trying to connect to 3G heaps and that was chomping through my battery. With my 2g connection right now I have full connection. Im pretty sure with 3G I was the same, maybe 1 or 2 less.
I do use Wifi, however I turned that off. Also, I live in New Zealand not America so I dont have AT&T - Not sure what TMO is.
He's referring to the version of the Nexus that you have. AT&T or T-mobile, and is a reference to the frequencies that are used, not the actual company,
Ahh ok Thanks. 900/2100 UMTS
I think you are confused about those numbers, those numbers are the amount of battery each item takes up. So Your cell standby takes up 38% of each instant your battery is running. It did not take 38% of your battery. Wifi is significatly better on battery then 2g or 3g, i would advise always use wifi when you can.
Are you using exchange push? 2.2 has a bug that if you are not rooted on a new rom can create this rapid battery drain on exchange.
I recommend getting os monitor and seeing what is taking up the load.
Sent from my Nexus One using Tapatalk
This sounds really similar to what was happening to me the first week with my N1. Cell Stand by was my biggest battery killer. A few posts above has it correct.
Ironically, by turning off wifi in an attempt to save battery I caused my phone to use the cell antenna which uses more power, and takes longer to complete each task. I now leave wifi on whenever I am near my routers, and even most of the time when I am not.
Turning off live wallpapers and disabling auto updates on social networking apps can also be a big help.
Run a few 24 hour tests changing some of those factors, but generally, think about wifi as a battery saver and you should get a bit better results. Your not using exchange right?
Yep. Wifi should be a priority over network connection. Make sure you also change the wifi sleep policy to "never" (settings > wireless & networks > wifi settings > hit menu button > advanced > wifi sleep policy > never).
Also I would double check the APN settings to make sure you are using the best/latest settings for your carrier. (settings > wireless & networks > mobile networks > access point names) Make sure the one selected matches the recommended settings for your carrier (you need to call your carrier or google the settings).
Other than that, maybe a reboot would help? pull and reinsert battery?
Hope that helps.
Ok Thanks for all the replies. I dont have any push notifications set to automatically update and I dont use any social networking apps. Ill turn Wi-Fi on now and even though I set it to "never" sleep - it still does when I lock the screen...but thats another problem .
Im not using any exchange push, not even sure what that is.
Cheers
Yes keep WiFi on will save you an enormous amount of battery, no question. The difference is huge for me. And your WiFi sleep policy should be set to never. If you have the bug where this setting does not work, then that stinks and you could install the new driver that fixes it. But for now you would need to be rooted until the fix is official.
I have now enabled Wi-Fi and put 3G back on. However my battery is still draining fast. It now says my Wi-Fi is using up 30+% of my battery. Im losing about 8-10% of battery every hour - Im pretty sure that isnt normal?
The other place to check is: settings->applications->running services.
See if there is something in there that you don't think should be running. Your display should be using the most battery, so it sounds like something is running automatically.
melwan said:
Yep. Wifi should be a priority over network connection. Make sure you also change the wifi sleep policy to "never" (settings > wireless & networks > wifi settings > hit menu button > advanced > wifi sleep policy > never).
Also I would double check the APN settings to make sure you are using the best/latest settings for your carrier. (settings > wireless & networks > mobile networks > access point names) Make sure the one selected matches the recommended settings for your carrier (you need to call your carrier or google the settings).
Other than that, maybe a reboot would help? pull and reinsert battery?
Hope that helps.
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Click to collapse
i have a similar problem with my battery i see that your on fido network like me whats the apn setting your using?
@adambenjamin: Thanks had a look. Everything that is running I want running, nothing that shouldnt be there.
@d.brown: Whats a fido network? I live in New Zealand, your flag is showing Canada - so we arent on the same network?
@everyone: So just a little update/recap. Basically my battery gets drained quite fast. Basically all my phone does is sit on the table next to me. I might send 5 or less texts a day, thats it - That will be all I do with my phone. I DONT have any push updates, no social networking. I have my brightness down to the lowest it can go.
I am on 3G, have set Wi-Fi to "never" sleep (However it does anyway).
Right now my phone has been unplugged from being charged for 8hours 24 minutes with only 45% of the battery left - I have sent two texts today and thats the ONLY time I have used my phone. My display is using 31%, Cell Standby 27% and phone idle 24% = 82%
Something I have changed recently is going from one network to another. The network I was one of the two biggest in my country (Which means it has alot of towers). I changed to another network which has been going for just over a year (Less towers). Could my battery be running down faster than normal because its harder to find a signal than before?
Also, my signal strength is -107dBm 4 asu (Absoloutley no idea what that means, but might be valuable to somebody out there who can help)
Thanks for all the help
Switch to GSM Auto (PRL) instead of WCDMA Auto. this helped battery life immensely for me. i can get to around 20 hours of moderate use usually
edit: to do this, you'll have to make a shortcut to the "phone info" activity using anycut or bettercut or another shortcut app.
once in "Phone Info", there's a drop down where you can select gsm auto (prl)
Dunno if it was mentioned, get OSMonitor (free from market) and see if Email.apk is stuck at full cpu load. It's been a problem since 2.1, it does that sometimes. If it's at more than 10%, kill it and re-launch it.
Hmm well strangley my Battery seems to be alot better now. Been on for 1day, 15hours, 23minutes and its on 73% remaining. Before it would last like 15 at most and be out. All I did was Turn W-Fi back on. Thanks everybody for there help
Been having the same issues as you, it's kinda getting annoying now.
I'm pretty much the same as you. I'll send a couple of texts a day or so, then put the phone to sleep and leave it for a couple of hours etc. No continuous usage.
From say, 8am till 9pm, I'm left with under 20% left, after EXTREMELY light usage. Sending a couple of texts and turning the screen on to check the time a few times shouldn't even be considered usage at all!
I'm just a bit envious of others who claim 2-3 days with light net browsing, a few texts etc. Thats more than me, yet they use less power.
On top of that, I'm running CM6 which includes an undervolted kernel a.k.a less power usage....ummm?
I've tried everything!
1) I've underclocked to max 384mhz when the screen is off (960 max when screen is on)
2) Wifi is usually left on
3) Data is usually turned off
4) No rogue apps detected
^
At the end of each day I check "Spare Parts" in my battery history to try and find an app that is using an abnormal amount of battery...Everythings fine.
5) Under "running services" all there is are my widget services (none data-related. eg Set Cpu widget, battery widget, Fancy Widget)
6) The screen is on auto brightness
7) Sync is off
8) GSM Auto is set instead of WCDMA preferred.
Everything!
I'm pretty much limiting the use of the phone just to make it through the day on standby.
And please, don't accuse me of someone complaining about their 12 hours, 32 minutes of "light usage" (6 hours web browsing, sync turned on, 4 hours of Angry Birds,constant calling/emailing)
I used to be able to leave my phone overnight for 8-9 hours and only have the battery go down 5-6 percent. Now its triple or more. And frustrating.
I really can't think of anything else.
From my experience, when I was running CM6 RC1, I was getting about 2 day's battery life with pershoots (pre-720p) 2.35 uv oc kernal. After upgrading to RC2, I no longer got good battery life, and I tried everything I know of with little luck.
I decided to try a new ROM and kernel. Now I am using Geo's frf91 stock deodexed blackbar v6.1 with the Stock kernel. This is now my favorite ROM/kernel combination. Try that one out and see how you run at stock levels, then maybe flash a new kernel if you want. Pershot, and Wildmonk are the local favorites, but I found them to leave me with sporadic overheating/ touch screen or reboot to X screen glitches. I would try a few days away from CM, to at least isolate some variables.
What version of CM6 are you running?
When wifi is turned on and the phone is otherwise idle, there is a constant but small stream of data up and down. I have NetCounter installed which monitors wifi as well as cell data. This morning, when I turned the phone on, with the wifi counter at zero, I enabled wifi and then just let it sit on the desk for 4 hours. At the end of four hours, there was a total of 3.83 MB of wifi data usage, 3.52 MB received and 320.7 KB sent. Also having wifi on when the phone is idle eats up the battery. Starting at 100%, at the end of the 4 hours the battery was down to 64%. With wifi off, after sitting idle for 4 hours it would still be above 90%.
By the way, the phone is now rooted with sre 1.3.1c and with lag fix installed, but the wifi has behaved the same from when the phone was new, and I ran it for about a month stock. I'm just curious if this is normal operation for wifi. I have read in other threads that some leave wifi on all day without much battery usage.
When I first got the phone, I thought that it might be some application running in the background that was causing the data usage, so I installed ATK and experimented with killing everything, but the data usage was constant. (I can also see the data usage on my router because the wifi light flashes continually when the phone's wifi in turned on, and is solid unflashing when the phone's wifi is turned off, assuming the laptop is not connected.) I was unable to stop the data usage by killing off applications.
Any ideas? Thanks.
Did you agree to send anonymous usage data to Google when you configured the phone?
Interesting thought. Normally I never send anyone any data, unless I'm forced to. Would the tech at the store have set this up? Where do I look to check?
Edit: if you mean "use wireless networks" in settings | location and security, it's usually on, but it doesn't make any difference to the wifi data usage if it is turned off.
Gmail does push email, so does exchange. Are either installed? Any widgets? Facebook accounts?
There are many core apps that use data, tell us more about your config and we can help pinpoint it.
I have the google and youtube widgets, the Android power control widget, and the juice defender and juice plotter widgets. The last three were installed after I started trying to find the solution to the wifi issue.
I have Gmail installed. However, Auto-sync is always unchecked, and even though I leave bacrkground data checked most of the time, if I uncheck it, even with a reboot, the wifi data still goes on.
Installed applications: AndExplorer, Any Cut, AutoKiller Memory Optimizer, Google voice, Grocery IQ, JuiceDefender, JuicePlotter, Listen, Maps, Market, My Tracks, NetCounter, OruxMaps, Quadrant Standard, Rom Manager, SL4A, Startup Auditor Free, Titanium Backup, XDA. All the root apps were installed recently.
Installed sre 1.3.1c recently, which removed samsung and at&t bolatware.
That's all I can think of for now. What else would be helpful to know about my configuration?
I don't see it on your list of installed apps but when I installed (ad supported) MailDroid, I noticed I got 4MB of data downloaded in 4 hours while the phone was sitting idle, charging (not even on WiFi. It was on my 3G!). When I Force Stop MailDroid, the data activity dropped to near zero.
Could it be some ad supported apps that run in the background? Data leaks?
I have the stock mail application, which retrieves mail from two accounts.
Grocery iQ has coupons. I use the program for inventory, so I never even look at the coupons page. Anyway, that app does not run in the background. You can't find any process associated with it unless you start the app from it's icon.
Startup Auditor has ads in it. I tried disabling it (with Startup Auditor) but that did not make any difference in the data, even after reboot. Anyway, that program was added since I've been working on this.
I don't think any of the other apps have ads in them.
One other thing I'll mention. There have been two occasions when the data stream stopped completely while wifi was still turned on, each time for a period of about 20 to 30 minutes. I could see this from the wifi activity indicator light on my router. This happened about two weeks apart. The more recent one was yesterday afternoon right after I made the OP of this thread. In both cases, I could not correlate what caused the data to stop, nor what caused it to start up again. But at least it seems to indicate that there is something causing the data to flow, and that it can be inactive while wifi is on.
are you sure its not another device that is using the wifi and not ur captivate
labbu63 said:
are you sure its not another device that is using the wifi and not ur captivate
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Yep. There's only the laptop and the phone. The laptop is on the ethernet connection, hard wired. The laptop has an on off switch for the wifi. It's off. Also, the indicator light goes solid when I turn off wifi on the phone, and starts up again when I enable wifi again.
Tonight I decided to put DG's Cognition on the phone. After I Oden3 one-clicked to stock UCJF6, I checked the wifi, and sure enough, still getting the constant data stream. When I bought the phone, I never really became aware of the problem until after I had loaded a number of apps. But here it is in the "just out of the box" state, and it already driving my router crazy.
So now I don't know what to think. Is this normal for all Captivate phones? Is this a hardware problem on this phone? Something else? Btw, the flash to cognition went smoothly, and the phone is running well, but the data stream is still there when wifi is on.
I wouldn't get all in a frenzy just because your router is blinking. Your router blinking doesn't mean your phone is downloading something. Install an app that monitors your wifi data usage. If it reports unusually high numbers then come back here.
gtg465x said:
I wouldn't get all in a frenzy just because your router is blinking. Your router blinking doesn't mean your phone is downloading something. Install an app that monitors your wifi data usage. If it reports unusually high numbers then come back here.
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Click to collapse
Please read the OP and the whole thread. It isn't that long. True, while I was in the midst of flashing Cognition, I didn't take time to install NetCounter on the stock rom and take time to check the actual data flow. But the fact that there is actual data flowing when the indicator light is flashing is established.
I've uninstalled MailDroid because of the annoying ads (and because I thought it was doing unnecessary downloads at night). I woke up this morning and NetCounter shows 13MB of data downloaded for Today (from midnight to 6am). I suspect it's the 4 windows (tabs) I have opened in my Browser. Two of them were full (desktop) websites that have banner ads in them. Hmm...
Less than 1MB of data per hour is not a big deal. I'm sure it's a combination of apps that pull or sync data from the internet. Or it could just be an app you have installed that's downloading ads like RexEscape said.
Also, do you have the wifi sleep policy set to never? It should be set to never for best battery life.
RexEscape said:
I've uninstalled MailDroid because of the annoying ads (and because I thought it was doing unnecessary downloads at night). I woke up this morning and NetCounter shows 13MB of data downloaded for Today (from midnight to 6am). I suspect it's the 4 windows (tabs) I have opened in my Browser. Two of them were full (desktop) websites that have banner ads in them. Hmm...
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Click to collapse
What do you show for data usage when your phone is idle but wifi is turned on, meaning nothing you know of would be using data? Would you mind doing a brief test like that? Thanks
gtg465x said:
Less than 1MB of data per hour is not a big deal. I'm sure it's a combination of apps that pull or sync data from the internet. Or it could just be an app you have installed that's downloading ads like RexEscape said.
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Click to collapse
It appears to be drawing data without any apps installed. I assume that after flashing odin3 one-click to the stock rom, the phone is configured almost exactly like it would have been out of the box.
Also, do you have the wifi sleep policy set to never? It should be set to never for best battery life.
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Click to collapse
Just checked it. It is set on Never now. I'm pretty sure it has been set on never since I first started trying to optomize battery life, and discovered the wifi issue.
gtg465x said:
Also, do you have the wifi sleep policy set to never? It should be set to never for best battery life.
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Where in the settings do I check this option??
dm
dwmoss said:
Where in the settings do I check this option??
dm
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Settings | Wireless and netowrk | Wi-Fi settings. Then press the menu button and select advanced.
creepyncrawly said:
Settings | Wireless and netowrk | Wi-Fi settings. Then press the menu button and select advanced.
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Click to collapse
Thank you very much.
I hate to bring this one back from the dead but I am having the same issue. When watching network usage in SystemPanel, I am getting 0.6-0.2kbps up and down constantly. Then when I switch Wifi off, it sits on zero. That seems to indicate something directly related to the relationship between the phone and wireless routers and not a specific app or general setting. Any ideas? Thanks guys.
I also just noticed that under Wifi settings it will pop up saying "Scanning" every 2-3 seconds. It does it whether network notification is checked or not. Not sure if that is normal behavior or not.
Every time I put the Nook Color in standby, it loses my wireless. Upon taking it out of standby, it doesn't reconnect automatically- i am forced to actually go into settings- wireless before it finds my wireless network.
I have installed Spare Parts and set the Wifi sleep policy to never, but it still doesn't automatically connect to my wifi network. Even if I turn off my wireless and turn it back on via the widget I have on my desktop, it won't connect. I am forced to enter into Settings- wireless every time.
Thanks in advance.
bumping once- seriously nobody else has this problem?
Yes I have this problem too but don't know how to fix it. I just turn wireless off then back on.
No issues here at all, reconnected within seconds. Rarely do I even notice it was disconnected at all.
Are still on the 1.0.0 firmware? I had this issue, but since updating to 1.0.1 (which stated it improved wifi) I haven't had this issue.
Yeah, I see this too. I saw there was a hack somewhere to make it persistent. But that would certainly drain your battery more. It didnt bother me all that much, but if you need it for Gmail/texting/Google Talk, I could see why you would want it to be persistent for notifications. Didnt bother me, since I have a phone too.
By any chance did you install the wpa_supplicant to enable use of adhoc networks? I've only had the issue since I did that. More info below:
http://forum.xda-developers.com/showthread.php?t=868354
Gabryael said:
By any chance did you install the wpa_supplicant to enable use of adhoc networks? I've only had the issue since I did that. More info below:
http://forum.xda-developers.com/showthread.php?t=868354
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Click to collapse
Same here mine only does it since the install, but I knew that going into it as well.
I always had that issue, before the adhoc fix and after. Learned to livevwith it. Haven't upgraded yet... still on 1.0
Sent from my NookColor
Same exact thing is happening on mine. I have AutoNooter v1.01 currently and every time my device goes to sleep the wifi turns off, which hasn't been an issue until just recently.
In the past as soon as I would turn back on my device, the wifi would reconnect. Now I have to manually go to Settings> Wifi to get it to reconnect to the network.
I have tried the SpareParts fix, but it doesn't help. I have also tried on different wifi networks, but the connection issues still occur. Any feedback would be greatly appreciated. Thanks.
I also have the same problem, running auto-nooter. The only thing is that my signal never reconnects, I have to manually reset my internet router in order to get it back. Rebooting, or turning off Wi-Fi settings within the device doesn't help.
The only thing that works is never allowing my NC to fall asleep on it's own. If I manually put it into standby mode, it works fine.
I have the 1.0.1 update, and I called BN, but they only offered to replace it. I have it tricked out just the way I want it, so I'm just going to hold on to it for now.
CocoaGoddess said:
I also have the same problem, running auto-nooter. The only thing is that my signal never reconnects, I have to manually reset my internet router in order to get it back. Rebooting, or turning off Wi-Fi settings within the device doesn't help.
The only thing that works is never allowing my NC to fall asleep on it's own. If I manually put it into standby mode, it works fine.
I have the 1.0.1 update, and I called BN, but they only offered to replace it. I have it tricked out just the way I want it, so I'm just going to hold on to it for now.
Click to expand...
Click to collapse
I had the same issue as well on 1.0.1.
I've found that the wifi doesn't turn off for me if it is plugged in and charging. I did enable wifi to never sleep w/ spare parts, but it still turns wifi off when it goes into standby when not charging.
My wifi stays connected with the screen off, but some times when I turn the screen back on the wifi disconnects. I know this happens because I am listening to Tune in radio and it does not disconnect until I turn my screen back on.
Sent from my Nook color using the XDA app.
hxxp://nookdevs.com/NookColor_Keep_wifi_alive_by_preventing_sleep_mode
This also explains why the wifi doesn't kick out when a music player is playing. I don't have enough posts yet to post a real link :/
aho43 said:
hxxp://nookdevs.com/NookColor_Keep_wifi_alive_by_preventing_sleep_mode
This also explains why the wifi doesn't kick out when a music player is playing. I don't have enough posts yet to post a real link :/
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Dang, I wish I would have found that app before I made and released my own.
http://www.appbrain.com/app/softlocker-free/otis8.softlocker
Mine does it.
I have to turn off then on.
This is only after the adhoc patch. I think I'm going back to infrastructure only.
I'm using wake timer:
http://www.appbrain.com/app/waketimer/schaze.waketimer
Same idea as SoftLocker but lets you also setup a timer where after a certain amount of time the system will actually sleep. Useful for night time or other extended periods of non use where you don't want to drain the battery.
Problem is that it does not activate on boot like SoftLocker and also after the timer expires and it goes into sleep, WakeTimer does not reactivate on wake.
Edit- after testing both programs I think SoftLocker is better. Running battery tests, there was not significant battery drain having SoftLocker on all the time. A few % overnight, probably related to the accumulation of e-mail, tweets, RSS downloads etc, but really minimal. Like that Soflocker can be checked to start on startup.
+1 for SmartLocker
This has happened for me as well. My remedy was to create a Tasker task where it's set up to connect to my SSID whenever it's detected.
colorado_al said:
I'm using wake timer:
http://www.appbrain.com/app/waketimer/schaze.waketimer
Same idea as SoftLocker but lets you also setup a timer where after a certain amount of time the system will actually sleep. Useful for night time or other extended periods of non use where you don't want to drain the battery.
Problem is that it does not activate on boot like SoftLocker and also after the timer expires and it goes into sleep, WakeTimer does not reactivate on wake.
Edit- after testing both programs I think SoftLocker is better. Running battery tests, there was not significant battery drain having SoftLocker on all the time. A few % overnight, probably related to the accumulation of e-mail, tweets, RSS downloads etc, but really minimal. Like that Soflocker can be checked to start on startup.
+1 for SmartLocker
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Click to collapse
Well, I'm the SoftLocker dev...so...I'm listening.
I saw the waketimer option for a timer and liked the idea...perhaps a future update?
Hello, I bought my Oneplus 3T recently and I'm using stick ROMwith ElementalX. The main problem I found is that everytime I look at what consumed the highest percentage of my battery are things like WA, Google Play Services, etc. If I click on the to see what is happening, I always get the Mobile Radio Active working like pretty much all the time.
For example, in a normal use for me which is between 26-30 hours until I decide to charge my phone(between 10-20%), I get a SoT of 4 hours and a half more or less. The problem is that from the total percentage of battery used, these applications which have the Mobile Radio Active problem drain between 10-15% of the total amount of battery, while my screen is like 7% of that total value.
Researching on XDA, I couldn't get any solution to this problem. I call this a problem because, every day I see new photos from people with between 7-9 h of SoT in maybe 20 hours of use. Of course, you can't really call this a bad performance of my phone but I think that this difference of hours with screen on is greater than the amount of time my phone stays with my screen off.
As a consequence, I wanted to know if there is a solution or some tips to reduce that Mobile Radio Active bug in order to extend the time between charges.
Thnk you very much.
Additional information: I cleaned flash stock today + ElementalX kernel + SuperSu to see if this kind of bug dissappears.
To "solve" the Mobile Radio Active bug you must take some extreme steps:
First, Root your device. This MUST be SuperSu unfortunately, as the app I'm going to suggest doesn't allow you to toggle the required settings with Magisk or Phh.
Install LeanDroid.
In settings, allow disabling of Wifi, Cellular Data, Bluetooth, Network Location and GPS Location.
Set to "0 min" after screen off. Click "Except".
Configure this screen to your taste, but I have "Except if tethering", "Except if charging (AC). Under Wifi I have "Except if connected to <my home WIFI>" and I have "Except if active: Limit" set to 100KB/s.
Bluetooth "Except if connected"
Location "Except if GPS in use"
and "Network Mode except if original strength OK."
Go back to the main panel.
Restore "After Screen Unlocked"
"Every 60 MIN after screen off" (Configure this to your liking)
With SuperSU and the above, turning the phone screen off disables the data modem when the transfer rate is low, this effectively shuts down the radio and prevents the Mobile Radio Active bug.
Run this with tools like Greenify and ForceDoze to really pump your battery life.
It's not unusual for me to see 8 hour screen on time with these apps and the above configuration.
and without root?
Just curious, how is the status of this bug ? I followed that Bug for like 1.5Years...since Lollipop i think. I myself tryed several things in Sultans ROMs in a OnePlusOne, but no Solution so far ;-(
Bug is still active. As far as I can tell, it remains active in Oero too.
The only option if you are not rooted is to close all apps and toggle airplane mode before you switch the screen off. This only solves the issue until the next time data is accessed by any app, though
THX for reply. Jepp on Wifi i get 4-5days @3-4h SOT. On Mobile only 2 days
Dressiel said:
THX for reply. Jepp on Wifi i get 4-5days @3-4h SOT. On Mobile only 2 days
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Obviously, it takes more power to send/receive signals to a cell tower 10 miles away, versus a WiFi router that is 20 feet away.
Also using WiFi doesn't ensure the modem is Switched off. Modem power doesn't mean data.
damiensturdy said:
Bug is still active. As far as I can tell, it remains active in Oero too.
The only option if you are not rooted is to close all apps and toggle airplane mode before you switch the screen off. This only solves the issue until the next time data is accessed by any app, though
Click to expand...
Click to collapse
This this bugs even remain active in Oreo i will never use android again.
It's existed since Lollipop and I doubt Google will fix it any time soon.
To get 7 hours of on screen time, you will of course have to sacrifice something, the laws of physics are always with us, reminding us from day to day things that can and can't be done. But hey, if you live in a cardboard box next to a cell tower should give you much better battery time without sacrificing the phone-part of your smart device. ? ?
I'm suffering from excessive battery drains on Note 8, Nougat 7.1.1. The battery drain is excessive when on idle mode/when the phone is asleep. I have installed BetterBatteryStats (gave it all permissions) and tested with different settings for a couple days.
My findings:
I strongly believe the issue is with my wifi.
Day 1: I kept wifi on, turned off "adaptive wifi" and "wifi power saving mode" and set "keep wifi on during sleep" to always. Battery drain was very excessive at home. In BBS, wlan_rx_wake and powermanagerservice.wakelocks were very high and phone didn't doze much. When I left home and went to the library and was connected to my school's wifi, the phone dozed, and the two wakelocks mentioned didn't occur any more. In fact, from the screenshot you can see the two flat regions are those when I was at the library, and the downhill regions are when I was home.
Day 2: I kept wifi on, turned on "adaptive wifi" and "wifi power saving mode" and set "keep wifi on during sleep" to never. No change. The results were just like day 1. Excessive wakelocks and battery drain. In fact, funny enough, the wakelocks occurred more often as if "wifi power saving mode" was doing the opposite of what it was supposed to.
Day 3: I turned off wifi completely, and was on cellular the whole time. Battery performance was amazing. Lost 5% over 10 hours, and I actually used the phone during this time. I made calls, surfed the web and texted. Additionally, the are no excessive wakelocks, and the battery plot is nearly flat the whole time.
In conclusion, I am really confused. At home, wifi kills my battery. At school, wifi doesn't do anything weird. It makes me feel like this is more than just some setting on the phone or some bug with Nougat. Maybe some networking issues with my wifi at home? I was hoping I could better understand my situation by getting help here. Any feedback is welcome. I have screenshots from each day so tell me if you think they'll be helpful. Thanks.
Make a factory reset... try that, it makes my stars better.
Could very well be caused by Wifi calling. Try switch off Wi-Fi Calling at home.
I remember having this issue in past with my Note 5 icw bad Cell reception at certain locations.
But wifi calling is always on, regardless of what wifi I'm connected to. It must be something specific to my wifi at home.