Edit: Use at your own risk, it worked for me but people seem to be saying it's not true.
I figured I would share this tip because it worked so well for me. When I first got the Nexus and connected it to my WiFi, the battery was draining at an absurd rate, even at idle. I want to use WiFi because we don't have LTE out here, so turning it on and off was a pain. Then I remembered the Sleep Policy, and there it was set to keep the WiFi on, even during sleep. I'm assuming Verizon did this to help reduce congestion on their network and save them money. After changing this to "only when plugged in" my battery graph at idle flatlined.
Hopefully it will help someone else!
Steps:
1. Settings
2. Wifi
3. Menu -> Advanced
4. Keep WiFi on during sleep
5. Pick an option best for you. I chose Only when plugged in.
From what I have read, keep wifi on during sleep was always the most power efficient. Maybe you have a weak wifi signal?
I'd like to hear what other people have to say on this one.
That's definitely interesting to hear. I'm usually one floor away from my wireless-N router which yields 3 or 4 out of 4 bars consistently. I guess I'll have to see if this works for anyone else then.
This is wrong.
You should set it to Always.
http://www.androidcentral.com/android-101-save-battery-keeping-wifi-alive
Because initiating wifi connection every time you turn on your phone will consume more power.
compywiz said:
I figured I would share this tip because it worked so well for me. When I first got the Nexus and connected it to my WiFi, the battery was draining at an absurd rate, even at idle. I want to use WiFi because we don't have LTE out here, so turning it on and off was a pain. Then I remembered the Sleep Policy, and there it was set to keep the WiFi on, even during sleep. I'm assuming Verizon did this to help reduce congestion on their network and save them money. After changing this to "only when plugged in" my battery graph at idle flatlined.
Hopefully it will help someone else!
Steps:
1. Settings
2. Wifi
3. Menu -> Advanced
4. Keep WiFi on during sleep
5. Pick an option best for you. I chose Only when plugged in.
Click to expand...
Click to collapse
Well it significantly reduced my idle battery use (like at night), so I'll put a warning at the top but I'll keep mine the same.
I guess you haven't turned on the mobile data cause if you do, then this consumes more power than wifi for sure.
Sent from my Galaxy Nexus
Generally, radio management on the Nexus sucks. I want a setting where if it's in standby, ALL RADIOS ARE OFF except for base phone and text messaging. So this helps a little.
Sure, it uses more power initially to turn whatever on, but no where near as much if you don't use your phone for hours, and don't constantly need to be in sync with everything (like when you're at a computer all day, and you can check your gmail, yahoo mail, have gchat and skype and whatever).
I'd even like a setting policy which only turns on data or wifi when you have an app open that uses them.
I may be using my "phone" (my wife said about her Stratosphere, "I forgot I could use this thing as a phone") differently than most people with smartphones. I need it to be my computer and social device when I'm away from a computer, and only when I take it out of my pocket and turn it on.
Wifi set to always on, while at home. Slept for 9 hours, went down from 100% to 94%
andy2na said:
Wifi set to always on, while at home. Slept for 9 hours, went down from 100% to 94%
Click to expand...
Click to collapse
Same here, with WLAN on my Nexus Prime drops about 6% over night.
Interestingly I just lost about 10% in 2 hours with the phone in stand-by but then I remembered I had to change my IP ~7 times in this time frame which likely caused a lot of WLAN activity and used up quite some energy.
Related
Ok I've had my desire now for couple if weeks. I've read many many posts regarding battery issues so please bear with me.
I've come from iPhone 3gs and estimate my battery is seeing 25 percent less capability.
There are it appears many settings for internet connection. (Always enabled, auto sync, background sync, connect to internet, then individual settings for certain apps when they wanna sync. And then WiFi settings. What I'm after is to kill the internet completely when my phone is not in use, (this is regretable but have to save battery).
What I want is to kill the internet completely when the phone is not in use. No background, no sending hunting for signal etc. Then in one click I wanna connect. AND have the apps sync that I want synced. And have full internet etc. Then in ONE click shut internet off compleley. Is the best way to do this, by setting up your auto sync and background to be always on. Background always on, everything always on or connected, then hold the power button to wake the phone but hold it till you get menu and then select connect to internet from one of the options. Then when I pit the phone down, hold power key, then select disconnect from internet. Will this work and kill my internet connection 100 percent? And get everything synchronized when I turn it on?
Not interested in juice defender, read some bad stories (aswell as good)
Thanks.
Long press the power button, click 'Mobile network' to toggle it on or off.
I use this settings when in work as I have a very poor 3G/H signal in my office, other wise the 3G/H singal drops and connects like a yo-yo all day long draining my battery like crazy! I turn it back on when I'm leaving work. This way I still get calls/texts while in work and I'm sitting at my computer for my internet.
JuiceDefender (even the free version) is working wonders for my battery life. The basic version forces your mobile Internet connectivity to only turn on for 1 minute for every 15...amazing what difference this makes.
I've been using it for the last three days or so in basic mode, and my multiplier is already over x2.
The only downsides I've found are that the 3G/HSDPA is a little slow at "waking up" if I want to use it if JuiceDefender has previously turned it off...I have to have the screen turned on for about 20 secs before a connection initiates - it's a relatively small price to pay, however.
As a rule, I have auto-syncing turned off during office hours since I'm in front of my PC at these times, so don't need to have GMail, NewsRob, Weather, Facebook, Twitter etc. updating on the phone. I turn syncing back on just before I leave the office - and there is plenty of stuff then synced up ready for me to look at whilst on the train home. I leave syncing on for the rest of the night whilst I have WiFi on the phone - and this seems to draw *far* less battery than when 3G/HSDPA is constantly on.
With this routine, I'm easily getting 24 hours out of the phone now...
The real battery killer is when you're using Internet-enabled services in a patchy area. The battery drains away extremely rapidly I've found. In can easily lose up to 40% whilst on the train home (which takes no more than 1hr 20mins) whilst I'm trying to use the Internet etc. as it is constantly cycling between cells moving between G-3G-HSDPA...
rodhull said:
JuiceDefender (even the free version) is working wonders for my battery life. The basic version forces your mobile Internet connectivity to only turn on for 1 minute for every 15...amazing what difference this makes.
Click to expand...
Click to collapse
I'll agree with everything rodhull says, especially the lag after switching the screen on. But I know the developer is working hard to resolve this and other issues. JD looks like it will very shortly be an excellent solution to this, which is really an HTC problem - they should have provided a better battery!
I got my Desire a week ago and the first two days it drained in no time.
Today i have used the phone for playing, surfing, talking, mail, used wifi and gps . and I still have 48% left on the Battery.
Time since last charge is 16 hours and 4 minutes.
I am not doing anything special to preserve the battery
TheOriginalKi said:
Long press the power button, click 'Mobile network' to toggle it on or off.
I use this settings when in work as I have a very poor 3G/H signal in my office, other wise the 3G/H singal drops and connects like a yo-yo all day long draining my battery like crazy! I turn it back on when I'm leaving work. This way I still get calls/texts while in work and I'm sitting at my computer for my internet.
Click to expand...
Click to collapse
Me too, when at home my battery uses about 1-2% per hour with everything syncing and stuff. When at work, it's 6-8% per hour and it's switching between 3G and 2g the entire day. This seems to have a very big influence on battery life.
Hi All.. Just visiting from the X10 pages.. we're having similar battery issues over there too... suspect that these "super smartphones" are really battery killers... A lot of people on the X10 seem to be getting much better battery life now - I got c.40 hours out of mine earlier this week - with wifi usage - no BT and no GPS... There seems to be a few useful things you can try.. first of all - most people have now ditched Juice Defender.. concluding that it doesn't actually help at all.. if anything I reckon it was using more juice..
Wifi sleep policy - set one.. !
Switch data services off when you don't need them (when asleep etc).
Specifying just 2G/ GPRS when in a weak 3G area..
install task manager or ATK to kill apps that run in the background.. sucking up juice!
Hope this helps some!
I've bought Desire 4 days ago.
I've been running in some battery problems a lot. I've heard that battery should have 4-5 full draining and charging before having its max capacity, but I have a life span of about 16-20 hours of battery with Wi-Fi on.
How i found out that: Yesterday I went to the country and messed around with my gps and navigation (never used one, so felt like a little child with a brand new shiny toy). So the battery went dead and i charged it almost full. When i got home i turned the wifi on. Didn't manage to connect to my home network, due to Android still not supporting Ad-Hoc networks (sharing through my notebook) so i didn't bother more and used my data plan, but forgot to turn off the wifi.
In about 2 hours, the battery was nearly 60% from 90. When i went to see what's draining the battery I saw it was the Wifi. I turned it off and since last night, up to now (about 14 hours) the battery is 50% (only 10 percent for 14 hours).
Is there any way to make the phone not scan so agressively for Wifi when it's on ? I'm comming from iphone and it didn't matter too much if i had my wifi on or off there.
First of all, what you're experiencing is normal.
In fact, dropping only 30% with 2 straight hrs of heavy use is actually quite impressive.
If you don't want your device to scan for wifi, turn it off. Simple as that. Keep the WiFi setting widget on one of your homescreens for easy access.
It wasn't heavy use I killed all apps and left it there. 30% are just from WiFi scanning.
I know I must turn off wifi, i have the widgy button, but sometimes i just forget i have to shut it down. (Though that's a bit killing, since i didn't have to do this on my iPhone. Actually this is the only shortcoming i can think of now, great phone. Seems i have to get used to killing extra stuff )
Sadly i couldn't find an option to tell it to scan on rarer occasion, just to help absent-minded people like me.
Try downloading "Y5 - Battery Saver" from the Market.
It automatically switches WiFi on and off depending on your location (as determined by cell location, not GPS).
It allows you to leave WiFi in locations where you know you have WiFi, and automatically switches it off when you leave those locations.
I've installed it, but not exhaustively tested as yet as I've not really been out of WiFi coverage since I installed it.
Regards,
Dave
Try getting the WiFi On/Off widget from the market.
It lets you turn off the WiFi with one touch. Will save you a lot of battery when not using it.
@Gana1991 - i've already noted that i have the widget (no need to download from market)
@foxmeister - thanks, i will try that. (I have been secretly thinking about some app with this function )
indeed, there is a WIFI widget builtin.
If you really want another widget, check the WiFi Toggle by "JQ Soft", nice design.
The Y5-Battery Saver is nice....it seems to work properly.
But i am affraid it was causing some problems here, so i uninstalled.
I will reinstall and do some more tests.
WI-FI usage is actually much better than using the network which drains the battery more.
But deffo only have on when using, not all the time.
Or you'd use the standard HTC energy widged or the android wifi switch wich can be found @ widged -> settings -> wifi
Put the HTC battery widget on the screen, not only does it show what % you have left but selecting the widget pops up a small menu where you can adjust display, turn on /off WiFi, GPS and Bluetooth, vey handy indeed
I leave my WiFi on all the time at home because of the data constantly changing between G/3G it drains the battery amazingly fast. leaving WiFi on helps me save battery and keep a data connection. I took my phone off charge at 9 this morning, WiFi has been enabled all day and I have 80% battery.
once the battery has had a week or 2 of charging it will run loads better. also charging with the phone switched off gets you a bit more juice because of a firmware problem.
Software Guru said:
Put the HTC battery widget on the screen, not only does it show what % you have left but selecting the widget pops up a small menu where you can adjust display, turn on /off WiFi, GPS and Bluetooth, vey handy indeed
Click to expand...
Click to collapse
Where is this battery widget? I cant find it anywhere.
Oops, didnt know i had to look for it on the market. Found it.
Go settings, wifi, menu button and this brings up advanced settings. From there you can disable wifi after 15 mins of inactivity. When the phone wakes wifi kicks in. I have data turned off, wifi turned off, but if I forget to turn wifi off after using it, it's not too bad as it will be deactivated.
What's that widget called? All I can find is the power widget.
Ok found it
Only seems to be a meter though, no adjustments?
Go settings, wifi, then WiFi settings, then press the menu button,. From their you can select advanced WiFi settings.
When i got home i turned the wifi on. Didn't manage to connect to my home network, due to Android still not supporting Ad-Hoc networks (sharing through my notebook) so i didn't bother more and used my data plan, but forgot to turn off the wifi.
Click to expand...
Click to collapse
If you were using your data plan then your wifi wouldn't be on as the phone turns it off when your connected via 3G, it only uses one or the other not both at the same time.
That's the way it is on my Desire.
I've not used WiFi at all today yet apparently its consumed 25% of my battery. I've got it switched off via widget and its also set to disable after 15 minutes of inactivity.
Any thoughts?
thanks for any help
It's just occurred to me that perhaps the percentages run and run and are not reset after a charge?
Anyone know how it works?
Hi
Just checked my battery using *#*#4636#*#* and under "battery history" and then "other usage", its showing WiFi on 100% andn WiFi running 100% since last unplugged (about 14 hours) usage.
This doesnt seem right to me, surely WiFi should not be running 100% of the time and my battery does appear to be going down quicker than normal.
Not only that but I don't connect to WiFi at work (although it is still enabled).
Can someone check that their phone isn't also showing 100% for WiFi usage. Also, any idea what could be causing it?!
Thanks
Anyone?!
-------------------------------------
Sent via the XDA Tapatalk App
same here, all i can think of is some app in background using up data or something , on that battery history menu, for Network Usage, media is 100% for some reason, internet around 70%, UID 10027 (what is this) around half way
I'm not totally sure what you are asking.
Are you saying either:
1. You're suprised your wifi is running at 100%
2. You think that because your wifi reads 100% it is transfering something.
3. Your battery is/isn't going down quicker.
Like I said, not totally sure what you are asking, but as a general comment, I do remember watching a (very long) video of an Android engineers conference given for programmers by Google, and they had a slide showing wifi being on is a very very small drain on the battery compared to bluetooth, 2G and 3G. (By the way, that doesn't say it was "less", just "small"!) Battery usage really depended on what chunks of data and how often it was being transfered through what trasmitter, rather than mearly having it on.
Wifi running means you are connected to a network, not that it is transferring data all the time!
Oh, just read you are not connected at work hm...
Any other ideas?
Can't figure out why its showing as 100% for on and running.
I'm no where near a WiFi hot spot and its still showing as 100.
Can someone explain what the difference is between on and running?!
Thanks
-------------------------------------
Sent from my HTC Desire
Why don(t you just turn it off
Wifi 100% means that the wifi radio has been on since you last unplugged it from the charger.
This doesn't mean that it is draining 100% of the battery, but that it just was on and it should be 100% until you turn it off from settings.
Battery is drained more than normal because of wifi scanning. If you connect it to a network, the batt will go a lot slower, because it wouldn't be scanning for networks constantly.
Go to settings > wireless and networks> wifi settings, then press menu > advanced > wifi sleep policy, and set to turn off after 15 minutes.
This will turn your wifi off 15 minutes after your handset goes to sleep.
If that has no affect, then you may have an app that is keeping the wifi on.
I am using android 2.3.7 (inc deck gingerbread).
Ok, I just read that the GPS check box (in the setting menu, or quick settings or whatever) does not actually turn the GPS antenna on and off, it only gives permission to the apps (gps-using-apps) whether they can turn the antenna on and off. Therefore, changing the GPS checkbox does not really save any battery. Simply by turning off gps-using-apps the antenna gets shut down, and then the icon disappears. The checkbox is simply there in case I don't want the app to have the ability to turn it on, as needed.
I just was hoping to get confirmation that this is true, yes?
Ok so that leads me to wonder about the Wifi and and Mobile Data check boxes (or toggles, whatever). When my phone is connected to Wifi and the 3G icon disappears, does that mean my phone just automatically turned off the 3G antenna?
I just upgraded to the Pro version of that fabulous little app Automateit... and just wonder if it is pointless to set up a rule to turn off 3G when it is connected to Wifi.
Yep. I would keep GPS ticked on because it does not actually go on unless you have an app (like navigation) open.
- Other programs may use GPS for a few seconds just to read your location, then they turn it off (such as weather programs) - this type of GPS usage really doesn't affect battery.
When you turn WiFi on it does turns off mobile data (3G) and you only have 1x.
GPS is only used when asked by an app or maybe the browser. Wifi on the other hand is always scanning. I recommend turning it off if you don't need it.
Sent from my HTC Droid Incredible
Thanks guys.
I have my wifi scan interval set to scan every 5 minutes. Hopefully that won't waste too much juice. he he
And if that wasn't stingy enough... with Automateit, my GPS, wifi and 3g get deactivated when the screen is off (all activate when screen is on). My battery life is pretty good, even overclocked . When I plugged in, going to bed the other night, I had 85% of my battery remaining (14 hours unplugged).
I should probably stop worrying about battery life.
iowabeakster said:
Thanks guys.
I have my wifi scan interval set to scan every 5 minutes. Hopefully that won't waste too much juice. he he
And if that wasn't stingy enough... with Automateit, my GPS, wifi and 3g get deactivated when the screen is off (all activate when screen is on). My battery life is pretty good, even overclocked . When I plugged in, going to bed the other night, I had 85% of my battery remaining (14 hours unplugged).
I should probably stop worrying about battery life.
Click to expand...
Click to collapse
Yeah you really shouldn't have to be worrying about battery life, it's something that use to drive me insane so I just bought a 2150mah battery and haven't looked back since.
I am suprised, there still is no battery life thread.
People must be very happy with their battery lifes or nobody is buying this tablet
I do have one big issue with battery life.
WIFI is the biggest battery hog, using 2-3 times more battery than the screen.
For 3 hours WIFI roughly 1400mAh.
So I only manage like 5 hours of SOT.
Btw. I have set WIFI to be disabled, when the screen is off.
Any suggestions?
I haven't had mine off charge long enough to really be able to comment about this yet but I can't complain with it so far.
Mine seems good so far. Had one freeze as you can see. 33% left.
bill3508 said:
Mine seems good so far. Had one freeze as you can see. 33% left.
Click to expand...
Click to collapse
Still, I think it is strange (as seen in your screen shots), that WIFI accounts for almost half of your battery usage. And 5+ hours SOT is only 6%?
Could you be so kind and post the screen for wifi too, so we can see the "computed power use"?
When looking at my phone, wifi is at 52 mAh power use over an 18 hour period, on this tablet it is 2700 mAh for 10 hours.
An alarming discrepancy.
Or am I missing something?
supersquishy said:
Still, I think it is strange (as seen in your screen shots), that WIFI accounts for almost half of your battery usage. And 5+ hours SOT is only 6%?
Could you be so kind and post the screen for wifi too, so we can see the "computed power use"?
When looking at my phone, wifi is at 52 mAh power use over an 18 hour period, on this tablet it is 2700 mAh for 10 hours.
An alarming discrepancy.
Or am I missing something?
Click to expand...
Click to collapse
Here you go. I'm guessing screen is only 6% because the tablet has been up now for 4 days, so 6 hours is a small portion of the activity.
supersquishy said:
I am suprised, there still is no battery life thread.
People must be very happy with their battery lifes or nobody is buying this tablet
I do have one big issue with battery life.
WIFI is the biggest battery hog, using 2-3 times more battery than the screen.
For 3 hours WIFI roughly 1400mAh.
So I only manage like 5 hours of SOT.
Btw. I have set WIFI to be disabled, when the screen is off.
Any suggestions?
Click to expand...
Click to collapse
Doesnt Wifi use more battery when its connecting and reconnecting with it disabled when the screen is off?
ZiggSVO said:
Doesnt Wifi use more battery when its connecting and reconnecting with it disabled when the screen is off?
Click to expand...
Click to collapse
I really don't know. You may be right.
I guess the high wifi in battery stats is a reporting error / miscalculation. I have wiped the cache partition in recovery (to fix my ambient light sensor) and ever since wifi is at the bottom of my battery list.
And I did not get any better SOT, so there could not have been any real battery drain from wifi even when it held the top spot in the stats.
Still disappointed with only 4-5h SOT.
Thanks everybody for helping out.
ZiggSVO said:
Doesnt Wifi use more battery when its connecting and reconnecting with it disabled when the screen is off?
Click to expand...
Click to collapse
No its still going to use far less unless your picking it up every 30 seconds or so.
bill3508 said:
No its still going to use far less unless your picking it up every 30 seconds or so.
Click to expand...
Click to collapse
my understanding of how android has utilized the wifi sleep policy is that its best to leave wifi always on when sleep. It will use more battery to reconnect to the wifi network when it is woken up and disconnect when sleeping.
Any sources to support your theory? I'd like to read up on it more.
Info I've always followed. This is from 2011 as well:
"This tip is one that seems counter-intuitive, but you can save a lot of wear and tear on your Android phone's battery if you tell it to keep the Wifi radio turned on and connected while the phone is sleeping. Your phone needs a lot of juice to keep pinging those cell towers, and even more to transmit data to and from them. Wifi radios use much less power because of their design, and they don't have to keep searching for a better access point. It's the way cellular data communication was designed, and it's a necessary evil.
But what if you're spending all day (or all evening) in one place, connected to Wifi? If you tell your phone to shut off Wifi when idle, it bounces back to cellular data (be it 2G, 3G, or 4G) and starts sucking down the electrons again when the screen shuts off. That's no good, and easy to fix:
Open the advanced Wifi settings by pressing the menu button, then Settings, Wireless & networks, Wi-Fi settings, and tapping the menu button again. You'll have a choice to either Scan, or go Advanced -- go Advanced.
Tap the Wi-Fi sleep policy entry, and you'll get a pop up dialog with the choices you see in the picture above. Choose Never.
Now even when your phone goes into standby mode, you'll stay connected to Wifi and be able to get mail and messages without turning the cell radio back on and trouncing your battery life. And for the times when you're not in an area with a Wifi connection, just shut Wifi off, either through the menu or with a handy toggle widget. Your battery will thank you for it."
ZiggSVO said:
my understanding of how android has utilized the wifi sleep policy is that its best to leave wifi always on when sleep. It will use more battery to reconnect to the wifi network when it is woken up and disconnect when sleeping.
Any sources to support your theory? I'd like to read up on it more.
Info I've always followed. This is from 2011 as well:
"This tip is one that seems counter-intuitive, but you can save a lot of wear and tear on your Android phone's battery if you tell it to keep the Wifi radio turned on and connected while the phone is sleeping. Your phone needs a lot of juice to keep pinging those cell towers, and even more to transmit data to and from them. Wifi radios use much less power because of their design, and they don't have to keep searching for a better access point. It's the way cellular data communication was designed, and it's a necessary evil.
But what if you're spending all day (or all evening) in one place, connected to Wifi? If you tell your phone to shut off Wifi when idle, it bounces back to cellular data (be it 2G, 3G, or 4G) and starts sucking down the electrons again when the screen shuts off. That's no good, and easy to fix:
Open the advanced Wifi settings by pressing the menu button, then Settings, Wireless & networks, Wi-Fi settings, and tapping the menu button again. You'll have a choice to either Scan, or go Advanced -- go Advanced.
Tap the Wi-Fi sleep policy entry, and you'll get a pop up dialog with the choices you see in the picture above. Choose Never.
Now even when your phone goes into standby mode, you'll stay connected to Wifi and be able to get mail and messages without turning the cell radio back on and trouncing your battery life. And for the times when you're not in an area with a Wifi connection, just shut Wifi off, either through the menu or with a handy toggle widget. Your battery will thank you for it."
Click to expand...
Click to collapse
I know that leaving WiFi on runs your battery down on any device when its connected and it takes all of 2-3 seconds to connect. No reason to leave it on full time when your not using it. Also, the device is continuously checking and sending small amounts of data to maintain that connection.
Were talking about the pixel here and not a cellular device.
Pretty happy with the C.
I haven't really payed attention to how long this device lasts, I use it pretty casually so it lasts me up to a week. I have used it to stream movies and it has lasted me the whole day (8 hours) watching movies with about 30% left. Compared to other tablets I've had including the nexus 9 this one blows them all away. My old nexus 9 would die after a few episodes (about an hour)
Sent from my iPhone using Tapatalk
I streamed a good 6 hours of a live feed on battery and the device used around 50%, can not complain with the battery life at all with this device
bill3508 said:
Pretty happy with the C.
Click to expand...
Click to collapse
Was that with bluetooth (and keyboard) on?
Ves said:
Was that with bluetooth (and keyboard) on?
Click to expand...
Click to collapse
No, just WiFi, don't have a keyboard.
As a heads up, there appears to be a WiFi issue with MM itself. I'm seeing the same issue on my Nexus 7 2013 running a MM ROM, and I found a thread online talking about it...maybe from the Android Central forums or something, I can't remember now. People seem to be unsure as to whether or not WiFi is actually causing a battery drain, or if it's just reporting incorrectly. But at least on my N7, the battery can drop 40-50% in one day while on standby, and when I have WiFi set to Off when it's sleeping. And I used to get DAYS of standby time before going to MM.
Edit: Here's an XDA thread about it: http://forum.xda-developers.com/google-nexus-5/general/guys-call-wifi-battery-drain-6-0-t3219870
I had the same issue with WiFi battery bug on the nexus 5. Fixed it via router by turning off the auto disconnect (the option where router decides if a device can connect based on signal strength) on both 2ghz and 5ghz. After this the Wifi went back down to the bottom of the battery list. Long shot, and most likely not even related, but hope it helps anyone.
On a Asus rt router.