WiFi remains active even after I disabled (battery) - X 2014 Q&A, Help & Troubleshooting

Guys, tonight I decided to switch off mobile data and WiFi when I went to sleep. Now noon, when the battery was almost over I decided to analyze some attention to battery depletion statistics and realized that even turning off the WiFi it continued to appear that spent the whole night on. Also, see that shortly after I slept network operator turned yellow. How to explain? My carrier has the much more stable network overnight just by reduced use and the absence of network overload.
He had the 3g network enabled, less mobile data.

It happens to me too. I guess it's only a visual issue, I dont think wifi is draining battery life.

Due to Wi-Fi scanning always available. Its actually keeping the Wi-Fi on if that option is chosen in Wi-Fi advanced options. Turn that off and you'll see that your Wi-Fi actually shuts off.

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[Q] WiFi Battery Drain

Alright I hate to ask this question, but my searching and reading is not leading anywhere. I recently upgraded to GB (Illuminance with Corn) and I'm loving how fast my phone is. The only problem I notice is how fast my battery drains while on WiFi (Wireless N with WPA2).
Example: I was at my parents house for 2.5 hours, but didn't bother turning wifi on. I only lost a few %. Once I got home, I kicked on the wifi and within an hour I lost 20%. It appears that when wifi is turned on it is almost constantly in use. I checked for rogue apps and data usage and found nothing. The only thing I notice is that every 5 seconds (yes, I actually timed it) it is polling for new networks.
After doing some reading I checked and the build.prop mods are in there (wifi.supplicant_scan_interval).
Any suggestions on where to go next?
Recap of phone config:
Rom: Illuminance 3.01
Kernel: Corn 7.06
Modem: KK4
Yeah...I've noticed that the build.prop tweaks for wifi scanning don't actually seem to change the scanning interval on gingerbread ;/
Try going to, Settings> wireless and networks> wifi settings> menu button> advanced> set wifi sleep policy to "when the screen turns off"
That'll help while it's asleep.
studacris said:
Settings> wireless and networks> wifi settings> menu button> advanced> set wifi sleep policy to "when the screen turns off"
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+1
I switched my ROM from Apex to Illuminance to test a theory that this functionality would work as it had in the past on Apex ROMS. For whatever reason kernels/framework were swapped in a newer version of Apex that killed this very helpful functionality. Once I switched to Illuminance and enabled the functionality, it works again and I get 2+ days worth of battery life with moderate usage (rarely a video/music played, but I do a lot of browsing and email usage/fb/twitter usage is high).
It drove me nuts on Apex trying to figure out the issue. I had thought my settings.db files that control the wifi functions had gone corrupt and the dev ignored any requests for assistance.
Glad I made the switch.
studacris said:
Yeah...I've noticed that the build.prop tweaks for wifi scanning don't actually seem to change the scanning interval on gingerbread ;/
Try going to, Settings> wireless and networks> wifi settings> menu button> advanced> set wifi sleep policy to "when the screen turns off"
That'll help while it's asleep.
Click to expand...
Click to collapse
That was the first thing I noticed. The ROM defaulted to Always On. I changed that the first day. Unfortunately, I still have the issue. As it stands, I only get one day at most out of my charge. The only thing I let sync is the gmail account. I mostly browse and talk less than 1 hour per day.
I'll try to do a more statistical approach when I get a chance. I'll see about taking readings ever half hour with the wifi on and no other use.
I was under the impression that if the phone downloads data over WiFi it actually uses less battery than if it downloaded data over 3G. When I'm at home, I leave my WiFi on intentionally when my phone is asleep so that my incoming email is more efficient since I have WiFi available.
Am I wrong here? Just curious if I've been mislead all this time.
I don't think you're wrong. That is why I always use wifi at home. I think I found some errant scripts that were running and causing the excess battery drain. I have taken those off.
I'll probably master clear and reload when I'm no longer on call this weekend just to make sure I got everything.

How to handle battery usage in 3g/wifi to remain always online

Hello,
I subscripted to a data plan with my carrier and I was wondering what is the best way to handle this situation to remain always online.
I have wifi and 3g on so when I'm home or in a place where wifi is available it connects to that network and disable mobile data and opposite when I go outside wifi coverage.
But I noticed two major problems
- I went out for 30 minutes, the phone switched to 3g and the battery went down 7% without turning the display on! I walked and the coverage is extremely good where I went plus I noticed that the wifi icon was still on so it wasn't really disabled
- When I came back the phone didn't go back to wifi connection and kept staying in 3g until I open wifi settings manually. This is a bug with cm7 I already reported!
Those things don't happen always but they do happen. Does 3g in "idle" consume so much battery power?? If yes The phone would die in 8h without even using it if I used it according to this rate it would die in 3h
My guess is that some of the phones may have some hardware issues, because the software is identical, but only a small part of them drain the battery when using 3G.
I have a similar issue: http://forum.xda-developers.com/showthread.php?t=1501047
edit: my Froyo drain was normal, 1% per hour, vs GB (stock, CM7, etc) which takes 5% per h. This would be an argument against a hardware defect...

[Q] Wifi never goes off in sleep mode

I have a strange problem. I set the 'Keep Wi-Fi on during sleep" to "Only when plugged in" but I see that Wi-Fi stays always on, also during sleep. In addition I noticed that the largest battery consumer is Android OS. Any ideas what's wrong?
amarguli said:
I have a strange problem. I set the 'Keep Wi-Fi on during sleep" to "Only when plugged in" but I see that Wi-Fi stays always on, also during sleep. In addition I noticed that the largest battery consumer is Android OS. Any ideas what's wrong?
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Click to collapse
Under Wifi Advanced Settings, you probably have the option for "Scanning always available" enabled. This keeps wifi available for location services, and makes it look like it's always on to the power monitor.
No. It is disabled
amarguli said:
No. It is disabled
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Click to collapse
Your battery usage doesn't look off. Android OS is almost always the biggest battery consumer on mine unless I'm using the phone heavily. wifi is typically 3-4.
I easily get through a day on a single charge. Usually I've got between 20-40% left at night depending on usage.
As for wifi I don't know. Perhaps there is another app keeping it on. I would try turning all location services off and see if that changes anything.
I'm curious why you'd want wifi off. generally it will default to the mobile signal which will use a lot more power. only reason to turn wifi off is if you don't have access to it.

Need help in understanding battery drain and (possibly) fixing it

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.

S10e wifi battery drain?

I got my S10e exynos a little over a week ago and gave it some good weekday battery life testing throughout the this past work week.
The screenshot is after a day of work, with the vast majority of the time on LTE and noticing massive WiFi drain. I've noticed that WiFi drains between 25-45% no matter if I'm using WiFi the majority of the time or not. Compared to my Pixel 3 that drains 5-10% from WiFi.
Anyone else getting WiFi drain? Could someone with a S10e SD855 post some battery stats? Please use gsam if possible.
Is your WiFi scanning turned on?
big_b0sss said:
Is your WiFi scanning turned on?
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Hard to determine which of these options would be considered "WiFi scanning", but they're all off except LTE switch over.
Just search wifi scanning and Bluetooth scanning
Biometrics and security, location, improve accuracy, turn off wifi / bluetooth scanning.
connections, wifi, advanced, I disabled the "switch to mobile data" to get better battery
Yes I am having this issue as well on my S10+ US Unlocked version. 1.5 hours of screen on time draining 5%, WIFI draining 8%. Doesn't make any sense. All o fmy WIFI scanning and auto switching is turned off.
Someone said it is because the phone doesn't go back to sleep on Exynos models after you've received a phone call
A reboot fixes it until your next phone call
Patch should fix it
Reboot doesn't fix it for me. I also have had two different s10s so it is definitely something software related. It drains so Mich that I keep wifi off unless I absolutely need it.

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