I was wondering if it is normal for wifi to be active even when I'm out and not connected to a wifi network. I'm wondering this because I'm not getting the best battery life and the wifi bar under battery stats is solid and GSam is showing that wifi is active the same amount as radio signal. Shouldn't wifi automatically turn off when it is not connected to a network? I have attached screenshots of battery stats, wifi settings and gsam and you can see that wifi is always active even though I was out and not connected to a network (the small break in the bar was when I manually turned on and off wifi really quickly) . I'm running DigitalHigh's GPE 4.4.4 Rom with Lunar Kernel and stock 4.4.4 firmware.
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I think what you're seeing is pretty much normal. Disconnected or not, if WiFi is on, it's always going to be looking for a network to connect to. If WiFi turned itself off when not connected; how would it know to turn itself back on? I have a Tasker profile I use to turn it off. It's not perfect as it turns WiFi on when connected to my home cell tower so anytime I'm near that particular tower WiFi is on but I'm away from that tower quite often so it's satisfactory for me.
If you don't want WiFi running all the time, as far as I know, the only way to get rid of it is to turn it off when you aren't using it. Either manually, or by using an app to do it like I do. Perhaps someone else has some other idea.
Thanks for your input, I will take a look into setting up a Tasker profile. Recently I have been flashing a bunch of roms so I thought something might have gone wrong when installing this one. I could swear that the battery stats screen showed when the phone was not connected to wifi on a previous rom but I'm not sure.
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Hi, I'm having a serious issue here. I unplugged my Transformer from my charger about about 11am today. I have used it, according to the screen on time in the settings, for 34 minutes. (it's now about twelve hours later.) However, the battery life is at 64%. I just don't understand this. My wi-fi is set to disconnect when screen turns off, and brightness is at about 55-60%. But look at this.
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Does anybody have a clue what could be going on? If you need more information about what state it is in, I'll be glad to provide more details. It seems like this started after I updated to 3.2, but that could be unrelated.
After updating did you set up the wifi power saving again? There is a bug in android where this setting gets reset when the device is rebooted
AustinMartin said:
After updating did you set up the wifi power saving again? There is a bug in android where this setting gets reset when the device is rebooted
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Yeah, I double checked when I posted this and it was still on "when screen turns off".
Try using juice defender. And check your running services/applications/auto sync cuz i see there alot of wifi actifity and your device is awaken even though the screen is off.
You could try using an app called Sysem Panel by NextApp.
You will need the paid version so that you can turn on the Monitoring option in the settings - this allows you to monitor the CPU usage over 2h/8h/1d/3d.
You can also monitor Top App usage of CPU which is fantastic for identifying the culprit.
I've had the phone for just over a day now and the battery life has been fantastic when outside where I have great coverage. However, for the past couple of hours I have been studying in the basement of the library at my college and I noticed that my battery drains around 20-25% per hour (not a typo) when my phone is not attached to AT&T's network, and it is searching for a network. The only application that I have that accesses data when the screen is off is Google Now, and even that has location settings turned off.
It appears that Google Now will constantly try an access a data network even if you are in an area with no coverage at all. My Galaxy S3 did not have this issue. The phone would simply stop accessing data after a short period of time if it could not attach to a data network.
Anyone else have this issue? I have had to turn data off and it seems to have fixed the issue. My phone is no longer using any battery idly.
You can see what I am talking about in this picture
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Sent from my Nexus 5 using Tapatalk 2
ComradeNF said:
You can see what I am talking about in this picture
Sent from my Nexus 5 using Tapatalk 2
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Does that drain persist after a reboot? My phone started chewing through battery for no reason at about 35 hours of uptime.
From what I experienced on my S3 and also the N5, whenever I go to school, I'd have to turn off my data because my coverage sucks there. However, if I leave the data on, it begins to roam/search for 3G signal and will eventually drain my battery. What you're experiencing seems normal to me. Just turn off your data and hop onto the WI-FI connection to conserve your battery. Seems to do the trick for me all the time.
There is a setting under wifi/advanced "Scanning always available", what is its use? I would have thought that programs like Maps, would use it to locate you if you had wifi and GPS off (location set to battery saving). But Maps doesn't do squat unless wifi (or GPS) is actually turned on. "ADM" also doesn't work unless wifi or GPS are actually on (regardless of how scanning box is checked).
All that check box does for me is show wifi being on 100% in battery stats. I turn it off and battery stats bar goes off. But doesn't seem to effect battery either way. So that box makes no sense to me unless it's a bug not working in 4.4 or 4.4.1. Is there any use for it?
Its use, I don't know but it means if the setting is active, wifi is never truly off. Scanning can still happen.
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I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
It's an awesome way to help your battery drain for no reason
Sent from my Nexus 5 using Tapatalk
OK, this location stuff is driving me nuts. I have Purity 4.4.1 on both my N7 and N5, no custom kernels. If I open Maps on my N5 with wifi off, it will zoom right in on my location with a blue dot. On my N7, just sits there waiting for location even with wifi on. I notice the wifi/advanced settings are a bit different on each (the n7 missing the frequency band setting), can anyone else confirm this?
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Below is the screenshot of my battery usage. I disabled cell radio and WiFi at 12 midnight until 6am. As you can see radio is off (see the gap) but my WiFi has no gap. I can assure you the WiFi is disabled. I don't see the WiFi icon during those time. FYI since I got the phone last January I really don't disable my WiFi even if not in use. Is this a bug?
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motogmoko said:
Below is the screenshot of my battery usage. I disabled cell radio and WiFi at 12 midnight until 6am. As you can see radio is off (see the gap) but my WiFi has no gap. I can assure you the WiFi is disabled. I don't see the WiFi icon during those time. FYI since I got the phone last January I really don't disable my WiFi even if not in use. Is this a bug?
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In Wi-Fi advanced settings make sure "Keep Wi-Fi on during sleep is not set to always (Default)
Thanks man. What does "only when plugged in" mean. So even if I set it to always, it does not consume battery? Because I can see that I improve battery after disabling radios. Like I save 8% of battery.
motogmoko said:
Thanks man. What does "only when plugged in" mean. So even if I set it to always, it does not consume battery? Because I can see that I improve battery after disabling radios. Like I save 8% of battery.
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1. always on even in sleep
2. only on in sleep if phone is being charged
3. never on in sleep
Why does the never, increases the data usage? If its never On in sleep. Haha. I'm sorry I'm so dumb haha.
So basically just out of nowhere, about 2 weeks ago, my phone's battery just starts dying really quickly when connected to WiFi. I am talking from 100% to dead overnight (7-8 hours). It's an S6 purchased on release day, original battery, but before this issue, I could easily go a day with normal use and have 40% or more. Even now with the problem occurring, I can leave WiFi off and still get my normal battery life.
No settings have changed (I have always had all the suggested battery saving settings set appropriately), no system updates, just usual app updates. I figured an app update caused the issue so I factory reset the phone with no luck. I ran a suggested app, GSam, to check for usage. It hasn't shown any apps consuming the power, just power draining very quickly when WiFi is enabled.
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Not sure why this screencap is so huge, it won't let me resize it on here. Anyway, it's a screencap from GSam. The first half shows during the day with minimal use with WiFi off. The steep drop just before the green line is usage when I get home and have WiFi on. The solid green line indicates charging. After that is the overnight period with WiFi on, massive battery drain.
I'm at a loss at what to do. I really like this phone and this WiFi issue is killing the usability of it. If I'm at home and browsing apps with WiFi on the phone dies so quickly. If this were an issue regardless of WiFi, I'd understand that it's just old and a dying battery, but it's only ever present when WiFi is on.
Besides trying a custom ROM, is there anything else I can try to fix this? I don't have it rooted and would prefer to just keep it official firmware only if I can.
Thanks in advance.