Wi-Fi uses battery when off! - Nexus 4 Q&A, Help & Troubleshooting

To see how long my battery would last with Wi-Fi and mobile internet was off, would last I charged it to 100 % then after 3.5 hours had a look, it was down to 93% but to my suprise Wi-Fi had used 12%! Does any one have any ideas how?

3dd1 said:
To see how long my battery would last with Wi-Fi and mobile internet would last I charged it to 100 % then after 3.5 hours had a look, it was down to 93% but to my suprise Wi-Fi had used 12%! Does any one have any ideas how?
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Just a guess, but it might not be that the wifi is the problem, could be because some apps are trying to connect to the wifi.
Sent from my Nexus 7 (2013)

Turn off google wifi location scanner in wifi settings
Sent from my Nexus 4 using xda app-developers app

Related

Battery lasts longer on wifi than 3g

Seems wierd but my battery lasts 2 to 3 times longer on wifi than without wifi turned on. Anyone think this is right?
Yes that is correct 3g takes more battery power
Sent from my SGH-T959 using XDA App

Battery drain with 3g on terrible

Hi guys,
Is anyone else get terrible battery life with 3g and data on even on standby? I believe the phone function drains the battery and it lasts only 2 days or so on standby. I constantly have the tab on flight mode with wifi enabled and battery is much improved to about 1 week standby. Anyone else? I am on stock 4.0.4.
Thanks
Wtf r this guy even serious? I wish i had 1 day standby, what a joke
Sent from my GT-P6800 using xda app-developers app
I get 5 days of standby with wifi and 3G on. Stock ICS aswell
long6688 said:
Wtf r this guy even serious? I wish i had 1 day standby, what a joke
Sent from my GT-P6800 using xda app-developers app
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Hi Iong. We are talking about a tablet here, not a phone. Tablets should have 1 week standby at least. The battery drain with 3g and phone on is unacceptable. I think the reason is the connection to phone signal which is constant.
Mate 1 day pr 2 day standby is a lot, given the fact you install many program and it constantly connect to tinternet to check for updates notifs etx. You dont have 1 week standby whatsover, forget it. Big tablet big baterry big screen. Ot all goes scaling together
Sent from my GT-P6800 using xda app-developers app
So 'l2_hsic' and 'batt_work wake lock' are the 2 processes keeping my table awake for 5 hours in total since yesterday. Any idea of what these do?
Thanks
tcdscr places
most likely is that one or more of your apps is causing the problem. try a reset and see if the problem goes away. if it does, install apps one by and and check which one is the problem
Use juice defender ultimate in tablet mode. I can go several days idle time and lose almost no battery.
Sent from my GT-P6800 using Tapatalk 2
?
may be change firmware?

How much battery do you lose overnight?

Hi guys as the title says can you guys pls mention how much battery you lose overnight with which rom and which kernel..
i leave mine plugged in overnight, why would you not?
Also i have some weird behavior with my phone.. It lost lot of battery overnight.. Android os is drainin too much battery.. Check the screen shots and tell me if its normal..
simms22 said:
i leave mine plugged in overnight, why would you not?
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The thing is that ramzan is going on.. So i plug it overnight then i unplug it when i wake up at 4am.. Then i go back to sleep at 5 am.. So cant plug it in again right..
zerohunk said:
The thing is that ramzan is going on.. So i plug it overnight then i unplug it when i wake up at 4am.. Then i go back to sleep at 5 am.. So cant plug it in again right..
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i bump charge all day long at work, i have on all my androids for the past 5 years(almost 5). and yet i am very happy with my battery when im away from the charger all day too
I lose about 4%-5%.
Sent from my Nexus 4 using Tapatalk 4 Beta
zerohunk said:
Hi guys as the title says can you guys pls mention how much battery you lose overnight with which rom and which kernel..
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0%-1% loss with wifi off, completely stock 4.3
Sent from my Nexus 4 using xda app-developers app
Max 2% since January. Regardless of the android version.
Totally stock
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filthykid said:
Max 2% since January. Regardless of the android version.
Totally stock
Sent from my Nexus 4 using xda premium
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failly said:
0%-1% loss with wifi off, completely stock 4.3
Sent from my Nexus 4 using xda app-developers app
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badboy47 said:
I lose about 4%-5%.
Sent from my Nexus 4 using Tapatalk 4 Beta
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wow guys are you all serious??? i lose around 10-15 percent overnight man
Dude.. My phone was on 60 percent at 6pm once when I slept... Next morning at seven it was off... Wifi off data off.. All **** off... I dint even get a call or msg... Definitely not 1 percent I guess...
If I leave data and WiFi off, about 2% to 10% but that isn't usual. When I am home, I leave WiFi on and that gets my currents and YouTube video preloaded. 15% to 20% Max. I rarely leave it to charge overnight.
Sent from my Nexus 4 using xda app-developers app
zerohunk said:
wow guys are you all serious??? i lose around 10-15 percent overnight man
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Yes ! you leave wifi or data on overnight?
Sent from my Nexus 4 using xda app-developers app
With data and WiFi on , if I fall asleep and my phones at 100%, it will be at 75 or so when I wake up
Sent from my Nexus 4 TMO @1.728 GHz on Stock 4.3.0
8 hours of sleep 0%. WiFi & Data off always. Rootbox ROM with Franco M3 Kernel. No of stuffs. Just default Franco settings.
Sent from my Nexus 4 using xda premium
failly said:
Yes ! you leave wifi or data on overnight?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
yes i do keep wifi/data on
any suggests ?
REBOOTED - nothing, drain battery like hell, lose about 30-40% in 5 hours...
I woke up with 15-20% battery drained... wtf guys ?
I kill all apps, turn of data, wifi and etc, still nothing...
BATTERY STATUS - messaging use 84% of battery... wtf ?
To all of you having problems with battery drain, you should know that last Google Maps update messed up the deep sleep state of the system.
I´m running Carbon ROM, but also tested with other 2 ROM´s and the results were the same, around 20%-25% battery drain over night.
I read that disabling "Reporting Location" and "Location History" under Location settings in the Google Settings app(the one with the green icon) helps a little, but still is an issue.
With these settings disabled, I get around 5% battery drain over night. Although the wakelock has decreased, is still there waking up the device. Already reported to Google to see if they can do anything to fix it. The wakelock appears as "Android System" or "Google Services".
Before update I had around 3% battery drain over night(around 8 hours) with WiFi.
Hope this helps.
:fingers-crossed:
As a battery life druggie, I get 1% max. Regardless rom. Usually wifi off and 2g data on. (wifi on is bad for HUMAN DEEP SLEEP).
A not sure useful or not hint, set pm.sleep_mode=1 in your build.prop
Disable everything you can think of. Wifi, gps etc.
Uninstall bloatwares, replace with downloadable ones, use greenify to freeze them.
5 %

How much battery do you lose overnight?

Just curious because I lose about 7-8% overnight and I feel its a bit much. Feel free to share your results.
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At most 3 percent, usually 1 or 2
Sent from my Nexus 7 using XDA Premium 4 mobile app
Doesn't it depend on widgets and how many apps are using Push?
Sent from my sweet Nexus 7 (2013)
0 for me. In fact, the battery gets charged to full over night. I put it on the wireless charger by the bed right before I go to sleep. :laugh:
My device sat unused for two nights and it only lost 6%.
i lost yesterday about 4% in 14 hours. do this ** settings- wifi - advanced - keep wifi on during sleep - only when plugged in ** you will see huge battery improvement. also you can use greenify app to hibernate apps that wake you tablet during sleep
Sent from my GT-I9505 using xda premium
VinBertinelli said:
Just curious because I lose about 7-8% overnight and I feel its a bit much. Feel free to share your results.
Sent from my Nexus 7 using Tapatalk 4
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Yeah I have the same battery drain. I have WiFi of during sleep.
Sent from my Nexus 7 (2013) using Tapatalk 4
GPS off?
Anderson2 said:
GPS off?
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Yes
Sent from my Nexus 7 (2013) using Tapatalk 4
big_b0sss said:
i lost yesterday about 4% in 14 hours. do this ** settings- wifi - advanced - keep wifi on during sleep - only when plugged in ** you will see huge battery improvement. also you can use greenify app to hibernate apps that wake you tablet during sleep
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
Just wondering.. Is your auto sync off too?
Mine has been very good. Been unplugged for 7days 12hrs, WiFi on the whole time, couple hours of screen on time and still got 20% left. Overall I'm happy.
Sent from my Nexus 7 using xda app-developers app
7-8% for 8 hours. Using CM10.2 and greanify.
potofgold said:
Just wondering.. Is your auto sync off too?
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nope my Google location service, gps and auto sync on. but if u keep ur wifi off while screen is off auto sync will not work then when u turn ur tablet on wifi gets connected you get all the notifications. no point to get notifications on tablet while im getting those notifications on my phone. also ive noticed that the more you charge the battery it gets better
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cowabunga said:
0 for me. In fact, the battery gets charged to full over night. I put it on the wireless charger by the bed right before I go to sleep. :laugh:
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Ditto. However, I did forget to plug it in one night an it was about 2-3%, FWIW...

Abysmal Standby Battery Life

Ever since switching from an iPad to a Nexus 7, I've noticed some terrible standby battery life. Like losing more than a % an hour. Currently have WiFi off when screen is off and all location services are off...is there something else I might be missing?
Thanks,
Will
Sent from my Nexus 7 using XDA Premium 4 mobile app
eskimochaos said:
Ever since switching from an iPad to a Nexus 7, I've noticed some terrible standby battery life. Like losing more than a % an hour. Currently have WiFi off when screen is off and all location services are off...is there something else I might be missing?
Thanks,
Will
Sent from my Nexus 7 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Is it rooted? You could try the greenify app if you want, now with the new update it works with non rooted devices but has some restrictions.
Look after your active backgrounds processes.I rarely lose battery when screen is off.
make sure tablet is actually in 'deep sleep' use cpu spy plus or betterybatterystats to check wakelocks
u should be over 95% deep sleep if your not doing anything after 30mins off/on standby
in 8 hrs off, u should only lose like 2-3% max , and deep sleep = 95-97% or higher

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