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I am getting very poor battery life. Fully charged at 8am and dead by 5:30. Hardly even using it. I have a limited number of apps on, just a subset of those on my Nexus One and no rouge ones at all. Made a few calls, no web, a couple of gtalk posts and that is it.
See attached usage screen charge to dead and charging again!
The phone is useless like this... any ideas????
Are you in a building with poor reception? I noticed this issue when I left data on when my company moved buildings.
moa77 said:
I am getting very poor battery life. Fully charged at 8am and dead by 5:30. Hardly even using it. I have a limited number of apps on, just a subset of those on my Nexus One and no rouge ones at all. Made a few calls, no web, a couple of gtalk posts and that is it.
See attached usage screen charge to dead and charging again!
The phone is useless like this... any ideas????
Click to expand...
Click to collapse
Is that solid blue bar from your WiFi being on all the time, or is that your awake bar on 100% of the time from a bad app?
That battery life looks atrocious. Show us the second screen to see the "awake" times.
martonikaj said:
Is that solid blue bar from your WiFi being on all the time, or is that your awake bar on 100% of the time from a bad app?
That battery life looks atrocious. Show us the second screen to see the "awake" times.
Click to expand...
Click to collapse
The phone is now changed so, the history has gone! I'll do more screens tomorrow.
I am not sure what you mean by awake bar?
I keep wifi and bt on all the time, as I did on my old N1. I am in the same place in the day as I was with that and will have same reception, which is not bad.
App installed are not strange at all;
Adobe Reader
Android Task Killer
AL Voice Recorder
Amazon MP3
Astro
Google Authenicator
Compass
ConnectBot
Currency Converter
ixMat Scanner
RealCalc
StopWatch
That's it, like I say a sub-set of those on my N1 and all solid apps.
I normally listen to mp3 on the N1, but have not had time on the Galaxy yet, so it;s getting less use.
moa77 said:
The phone is now changed so, the history has gone! I'll do more screens tomorrow.
I am not sure what you mean by awake bar?
Click to expand...
Click to collapse
When clicking on the graph, there is a blue bar showing how often/when the phone is "awake", like in the screenshot I've attached.
I keep wifi and bt on all the time, as I did on my old N1. I am in the same place in the day as I was with that and will have same reception, which is not bad.
Click to expand...
Click to collapse
do you keep mobile data turned on? if so, do you keep 3G turned on, or just 2G?
App installed are not strange at all;
Adobe Reader
Android Task Killer
AL Voice Recorder
Amazon MP3
Astro
Google Authenicator
Compass
ConnectBot
Currency Converter
ixMat Scanner
RealCalc
StopWatch
Click to expand...
Click to collapse
Get rid of the task killer!
Other than that, don't see anything crazy... This battery life is really strange. When your screen is using less power than the 'Android OS' it shows you're really not using the phone much, but the phone is still tanking on battery life.
I'll post those screen shots for today when I get home tonight.
A few things I have noticed though. It seems to level off at midday, this is when i leave work and go home for an hour. While at home I will be on wifi. I do not connect to wifi at work.
Secondly, while at work I notice my data often changes between "3G" and "H", while the phone is in the same place. Probably 60% H and 40% "3G". It is not practical to turn "2G" only on, as I get the volume bug and the phone becomes unusable.
I am wondering if the data signal is draining it somehow? If so, how can I work around that? Like I said, I have a N1 before the GN which sat in the same place on my desk every day and had no battery drain issue at all.
I unplugged mine yesterday at 7.30am and it died at 9pm
I used the internet on/of all day made a couple of calls and about 50 texts, screen on time was about 4 hours.
Today i've used it in a similar manner and as of now (3pm uk) 7 and a half hours in its on 57%
The battery in this thing is better than my desire, granted, not much in it but it will easily get a normal user from one sleep to another
Stret
moa77 said:
App installed are not strange at all;
Adobe Reader
Android Task Killer
AL Voice Recorder
Amazon MP3
Astro
Google Authenicator
Compass
ConnectBot
Currency Converter
ixMat Scanner
RealCalc
StopWatch
Click to expand...
Click to collapse
No, it's strange you have a task killer on Ice Cream Sandwich. WTF? This isn't Eclair. Get rid of the damn task killer.
moa77 said:
A few things I have noticed though. It seems to level off at midday, this is when i leave work and go home for an hour. While at home I will be on wifi. I do not connect to wifi at work.
Secondly, while at work I notice my data often changes between "3G" and "H", while the phone is in the same place. Probably 60% H and 40% "3G". It is not practical to turn "2G" only on, as I get the volume bug and the phone becomes unusable.
I am wondering if the data signal is draining it somehow? If so, how can I work around that? Like I said, I have a N1 before the GN which sat in the same place on my desk every day and had no battery drain issue at all.
Click to expand...
Click to collapse
I'd say with 95% certainty it's just signal-hunting causing the drain. With my Fascinate at work, I'll easily lose 50% battery within a couple of hours, even if I'm not using it, while at home it'll last me between 15-20 hours before getting low. Easiest solution is to just buy another charger for work, and leave your phone plugged in whenever it's on your desk.
Don't like seeing android os at the top of that list! Does the nexus share some of the problems that have plagued the galaxy s line of phones, the android os bug!? :O
Sent from my GT-I9100 using XDA App
copkay said:
I'd say with 95% certainty it's just signal-hunting causing the drain. With my Fascinate at work, I'll easily lose 50% battery within a couple of hours, even if I'm not using it, while at home it'll last me between 15-20 hours before getting low. Easiest solution is to just buy another charger for work, and leave your phone plugged in whenever it's on your desk.
Click to expand...
Click to collapse
I kind of think you might be right. However, a phone that drains itself while doing absolutely nothing useful at all, is no use to me. I carry it about and am in and out the office though out the day. It would be unworkable to keep putting it on charge every time I come back in the room. I need a phone I can carry around for a working day without charging. My old N1 did. If this can't do it I'll need to get short of it and get something more practical. Seems ridiculous though.
Btw, task killer just got installed by default when I upgraded. All the apps that were on the N1 were installed when I signed in. Just never deleted it
Do you leave your Wifi on all the time even if you don't have Wifi signal available? Don't do that.
If you are too lazy to manage your data connection manually all the time, I highly suggest getting the app Juice Defender from the market. You can save the battery by setting a schedule for data connection and also it will disable your wifi automatically if your phone can't find a wifi spot it can connect to.
Sent from my Galaxy Nexus using XDA App
Chrono_Tata said:
Do you leave your Wifi on all the time even if you don't have Wifi signal available? Don't do that.
If you are too lazy to manage your data connection manually all the time, I highly suggest getting the app Juice Defender from the market. You can save the battery by setting a schedule for data connection and also it will disable your wifi automatically if your phone can't find a wifi spot it can connect to.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Yes, I leave wifi and bt on. I want to be able to do this. I am not asking for it to run for days. 1 full day is all, I have not issue charging every night.
I could look at the juice monitor, however, it does not seem too much to ask to be able to get 1 full day from it of average use. To me, it seems perfectly reasonable to expect the device to work for a full day with all services running.
Is there any tool than can be used to prove that the signal hunting is eating the power? Currently is seem to be in the big pot called "Android OS"??
Well, I'm not gonna defend the phone. Leaving all radio processes on, especially when there is no signal available, is well known to drain a lot of battery since the phone uses more power to search for available networks than when it has a stable connection to one. If you leave it on in a place with spotty or no signal it will make the problem worse.
Juice Defender (the basic one anyway) is free and pretty much manages the connections for you and basically extends your battery life with minimal effort. Give it a go for a couple if days.
Sent from my Galaxy Nexus using XDA App
I strongly agree with chrono.
Sent from my SCH-I500 using xda premium
+1 with Chrono.... Turn off Wifi completely if you are not using it.
if you are a new android user, you should also check the settings of the phone:
hit *#*#4636#*#* in the dialpad.
this will bring up a menu. there you should try phone (i think, my n1 got stolen a while ago). there, you scroll down and there is a menu to adjust the preferred network mode.
if it's set to CDMA preferred, it will search for a cdma single. you just adjust it (i think) to gsm only. google will help you a bit here.
Hi guys
I have a LTE Note II and have had this battery drain on standby where wifi will absolutely destroy my battery. This has been going on for months and months and I'm just not sure if Samsung are ever going to resolve this and it is quite the pain in the arse.
I've done many tweaks to my phone, and all location services are off. Also, I've set it as a static IP, but nothing seems to help. I think this is related to the wlan_rx_wake wakelock? I get the impression my phone is responding to the wifi and getting woken up constantly.
Does anyone else experience this and do you have any suggestions?
P.S. please don't mention my apps causing it. It definitely is not. I know my way around Android and also, my Nexus 4 with the same setup (but location + google now turned ON) absolutely annihilates my Note II battery life on standby. This is clearly a Samsung problem that they have ignored for the best part of a whole year, and it seems to be related to wifi.
Any help would be greatly appreciated.
Thanks
Do u have some figures about this battery drain to be able to compare with my phone?
It could be a bad modem/connection. What is your configuration?
Primokorn said:
Do u have some figures about this battery drain to be able to compare with my phone?
It could be a bad modem/connection. What is your configuration?
Click to expand...
Click to collapse
No exact figures but I have been observing it for months now and it hasn't been the case with any other phone I use. With wifi on, it'll drain around 20% overnight. With Wifi off, it'll drain 5 or so %. With Wifi on on every other phone I own/owned, it will barely drain at all overnight.
Type *#0011#
Check wifi setting
Sent from my GT-N7100 using xda app-developers app
This is what I got when I entered that it
After *#0011# go to menu and select wifi in order to see if power safe mode is on.
Yeah it is on
Is that bad?
Sent from my Nexus 4 using Tapatalk 4
That's not bad, it improves battery usage. I don't recognize your problem. Does the phone go into deep sleep with wifi on? Which rom do you use?
Hielko said:
That's not bad, it improves battery usage. I don't recognize your problem. Does the phone go into deep sleep with wifi on? Which rom do you use?
Click to expand...
Click to collapse
Stock ROM. And yeah, but it is constantly being woken up.
Sorry for the bump, but this hasn't changed.
I'm not sure if this is to do with just the N7105, but it is something that just won't go away. I'm now finding I lose between 20 and 30% overnight (around 7 hours) with wifi on, or about 10% with data on. With these both turned off but the phone radio still being on, it only drops about 2% in the same time. This was tested with bluetooth/gps and sync turned off.
I don't really have the time to write up everything that I have tried, but suffice to say I have tweaked the phone a lot over the past few months trying to sort this out, but nothing works.
Here is a quick summary of the stuff I have done.
Firstly, I have to run a stock rom and kernel because there is an app I need that will not work on custom roms/kernels. It also doesn't work on root but I have found a procedure to toggle unroot/root when need be and it works fine. Therefore I'm stuck on 4.1.2 as I want to be rooted but I cannot use any custom rom or kernels.
I have tried factory wiping the phone/installing later versions of 4.1.2, etc etc and the same problems still exists with a freshly wiped phone and no apps installed. This problem also doesn't happen with my Nexus 4 or any other phone I have owned with the same setup, so I am very certain it is not due to a misbehaving app.
I have frozen a lot of bloat with titanium backup, I have hibernated a hell of a lot of stuff with greenify (including system app where there are no perceivable negative consequences)
I have added a few tweaks to the build.prop such as to disable fast dormancy and a few other supposed power saving ones which are meant to help with the msm_hsic wakelock.
There are many other things such as setting a static IP, and also tweaking with my router based on some advise I found on these forums. Nothing much has helped.
Location services and google now are off, and I'm not using the Samsung bloatware apps.
I use betterbatterystats and the partial wakelocks are fine. Very low infact.
However, IMO it is two "kernal wakelocks" which are causing me the problem.
wlan_rx_wake - in regards to the wifi
mdm_hsic_pm0 - in regards to the data
These are by no means outrageously high. My estimation is perhaps 10 mins wake up time and around 2000 "expire time" (whatever that means) every 3 hours or so. However, these two are always the highest kernel wakelock depending on if i'm using wifi (wlan_rx_wake) or data (mdm_hsic_pm0). My phone is also not being kept awake too long too in general.. at a guess around 3 hours awake time for every 2 hours screen on time for every 15-20 hours.
I can't remember if these kernel wakelocks were super duper high in the past, and the fixes I tried actually lowered them, but I still notice this massive Idle drain when on data or wifi (just over 1% per hour - or 2-3% per hour respectively).
In regards to the Wifi.. I suspect that packets are being sent from my router which are constantly waking up my phone. Unfortunately, I haven't been able to solve this problem with any of the router-side fixes I've tried.
This leads me to suspect that the wifi and data radio of the N7105 is power hungry, or I've had a faulty unit since day one. I keep hearing about this stellar battery life for this phone but, for me, the best I've ever got is around 20 hours. This may sound good but the problem is it is 20 hours with 6 hours screen on time, or 20 hours with 2 hours screen on time. This doesn't seem to make a difference where I should be getting two days when I only have 2 hours screen on time.
Any help would be greatly appreciated, and any experiances of others with the N7105 may help find out if it indeed is more power hungry. I'd also like to add that my network does not support 4G yet so this is all on 3G and NOT LTE.
Thank you, and sorry for such a long post.
fade2black101 said:
Hi guys
I have a LTE Note II and have had this battery drain on standby where wifi will absolutely destroy my battery. This has been going on for months and months and I'm just not sure if Samsung are ever going to resolve this and it is quite the pain in the arse.
I've done many tweaks to my phone, and all location services are off. Also, I've set it as a static IP, but nothing seems to help. I think this is related to the wlan_rx_wake wakelock? I get the impression my phone is responding to the wifi and getting woken up constantly.
Does anyone else experience this and do you have any suggestions?
P.S. please don't mention my apps causing it. It definitely is not. I know my way around Android and also, my Nexus 4 with the same setup (but location + google now turned ON) absolutely annihilates my Note II battery life on standby. This is clearly a Samsung problem that they have ignored for the best part of a whole year, and it seems to be related to wifi.
Any help would be greatly appreciated.
Thanks
Click to expand...
Click to collapse
I ain't expert...
but, I would suggest like this :
Go to wifi, press menu and then Advanced (advanced setting of the wifi).
uncheck/untick "Scanning always available"
"Keep wifi on during sleep" = set to Never.
uncheck / untick "auto network switch btwen wifi network and mobile networks"
all these helps me to minimize the usage of wifi during night times (when I sleep). Anyway, device also need to have a deepsleep
Hope can help you as well.
Sent from the corner of this rounded earth.
Now.. I'm on my phone a lot normally. I text, and use FB messenger, and a lot of Google Now. Because my phone battery dies so quickly, it sits plugged in a lot, and I don't use it nearly as much as I'd like to.
If I am using my phone a lot, I can take my phone from 100% to 15% 3 times in a day.
I factory reset recently, and just let my phone sit with nothing but Google Messenger and Facebook. It still dies from a full battery in ~4-5 hours, without me touching it. Thing is, all the battery stats show less than 5% usage. And there's no crazy crap like games, etc running. I can't figure out what's eating the battery.
I just put the phone in Airplane mode, and enabled Wifi. I'm getting all my emails, fb messages, gmail, google voice, so on. Battery only went down 30% in 28 hours. I turned off airplane mode (it's not connected to Sprint at the moment, I took it off the account), and I have an Airave...battery dropped 15% in about 30 minutes. Went back to airplane mode with Wifi on, and back to a really slow drain.
Right now, I'm planning on packing up my phone tomorrow and sending it to Samsung for a battery replacement. Because my standard 2A-5V can charge this phone from 10% to 100% in an hour...which isn't right. Not the original QC2.0 charger.
Update: I turned off airplane mode again, and the phone is steadily losing 10-12% battery an hour.. and there's nothing running. It's sitting face up on my coffee table.
What can I do to stop the battery bleed? It's completely stock, on the latest update from Sprint, with no root.
I got an RMA from Samsung to send it in for a battery replacement.
Attached are screenshots of my battery stats. It just makes no sense. Even after a factory reset, not everything using the battery is reporting to that page. The sharp drops in battery are from when the phone is not in Airplane mode (only wifi on)
I've got the same issue. No better than 7-8 hours of standby time. My cpu will also heat up to 160 degrees while running very basic apps.
Any guesses on what's wrong? What have you tried?
turn off:
mobile networks > Connection optimizer
wifi > always allow scanning
these worked for me. hope helps you too.
besotsima said:
turn off:
mobile networks > Connection optimizer
wifi > always allow scanning
these worked for me. hope helps you too.
Click to expand...
Click to collapse
Yes this is a battery hog for sure shut off that Connection Optimizer, also I set my screen brightness to auto (little check box after the slider) and I noticed a big difference in battery life, I use to crank up the brightness and battery would drain fast, I been on 2 days now at 79% battery..... also not sure but I shut off notifications everywhere too, I don't need facebook telling me everytime a monkey posts on another monkeys wall every 2 minutes, that helps on battery drain as well.
ditto.
This has gotten much worse since I updated to 0I1 rooted with unikernal v9
Also for some reason now... even though both the connections optimizer and wifi scanning turned 'off'-- wifi still keeps randomly turning itself "on" frequently. That with the incredibly poor battery and overheating is frustrating.
Good for you
I had the smart connection optimizer, and wifi scanning off. I also have the wifi location scanning thing turned off.
None of that helps.
My phone is on it's way back to Samsung right now to have a new battery installed.
At this point, I'm pretty sure it's faulty hardware.
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.
Hi, I bought 2 same devices (A52s 5G) for my parents. Problem is with just 1 device (they are set up absolutely the same). The problem is with overnight battery drain. I suspect WiFi is the soruce of the problem, because our WiFi router is set to power of Wifi transmission overnight for 6 hours and turn it on automatically in the morning. The problem is - if I don´t turn WiFi off on the affected device, it eats up 15 percent in 6 hours. On the second device there´s no such problem. WiFi could stay on and in the morning the percentage is down by 1-2 % which I think is perfectly normal since the device is still powered on. Percentage graph shows absolutely nothing in app consumption. For example i fully charge it in the evening and in the morning there is 85 % battery left and battery stats shows screen on: 0 minutes, screen off: 8 hours, no apps used. I think the affected device has problem with searching for WiFi and it want to connect all the time to the router? I would really appreciate your suggestions . Thanks
I'd wipe cache then run device care/optimize.
At night try this. Turn off Wifi, Location. and Bluetooth if enabled along with data.. I do this every night before bed.. When I wake up in the morning i usually have 97% left if it is not on the charger.. When I take it off, and go to work with 100%. It will stay at 100% for up to 3-4 hrs if I leave all mentioned still off.
doubledragon5 said:
At night try this. Turn off Wifi, Location. and Bluetooth if enabled along with data.. I do this every night before bed.. When I wake up in the morning i usually have 97% left if it is not on the charger.. When I take it off, and go to work with 100%. It will stay at 100% for up to 3-4 hrs if I leave all mentioned still off.
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Yes, if I turn WiFi off, it loses just about 2 percent at night. But if WiFi stays on (parents forget to turn it off in the evening, you know) and it can't connect because my router powers off automatically night, it loses 15 percent, which I think is crazy, isn't it? Can you please try this situation? Would be really grateful
tamas970 said:
I'd wipe cache then run device care/optimize.
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Tried, with no luck
matthew1811 said:
Yes, if I turn WiFi off, it loses just about 2 percent at night. But if WiFi stays on (parents forget to turn it off in the evening, you know) and it can't connect because my router powers off automatically night, it loses 15 percent, which I think is crazy, isn't it? Can you please try this situation? Would be really grateful
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It is losing that much, because the wifi is constantly looking for a connection... Keep it on at night and see what happens...
doubledragon5 said:
It is losing that much, because the wifi is constantly looking for a connection... Keep it on at night and see what happens...
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But you have to turn off your WiFi router, thank you! I tried it on my S21 Ultra, and I lost 3 percent overnight, big difference, right?
Something is quite tricky here , you have 2 same phones with same identical settings and one of them loose over night lot of battery ?
In my humble opinion if you're sure about it there can be only a faulty phone
muppetz said:
Something is quite tricky here , you have 2 same phones with same identical settings and one of them loose over night lot of battery ?
In my humble opinion if you're sure about it there can be only a faulty phone
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This night I put both phones next to each other, same scenario, before going to bed at 100%. This morning one shows 86 and second one shows 87 percent. Battery stats shows nothing used as usual. So it is problem of both phones, new discovery
Ok , I understand ... There are several settings (look for it) which can save battery over night . 15% battery drain overnight is overall quite too much . My phone , debloated , set with right choices , with moderate use have enough battery for almost 3 days .
What does it mean right choices? Phones are debloated, set with right choices, only thing if parents forget turn off WiFi before bed, in the morning they have 15 percent less battery. So WiFi searching must be culprit. Because WiFi router shuts itself down automatically in the evening. Can someone please confirm that if you leave WiFi ON in phone and turn WiFi router OFF, if you have that much battery drain overnight? Keep everything else off in phone, except WiFi. Thank you
Any recommended debloat/setting guides for the newcomers?
My phone started the same few days ago. I just updtated everything now, will wipe cache, turn off wifi and see what it does overnight.
Turn off 5G, keep only 4G/LTE. This improved my battery life a lot.
I don't have this device so I'm not sure if this works, but Wi-Fi advanced settings should have an option to turn off automatic scanning for Wi-Fi. Try turning that off
I always find always on display feature draining my battery excessively. Try turning it off and see if theres a difference
chirogan said:
I always find always on display feature draining my battery excessively. Try turning it off and see if theres a difference
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They don't use always on. Anyone who is able to try turning WiFi router OFF at night, but keep WiFi ON (in phone) please? That is the only thing which will tell us more...thanks.
matthew1811 said:
They don't use always on. Anyone who is able to try turning WiFi router OFF at night, but keep WiFi ON (in phone) please? That is the only thing which will tell us more...thanks.
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Always on display is activated by default (default settings is "Tap to show") Unless you turn it off manually on the settings, it still is always on and drains that much battery as it needs to be always ready to be tapped. Not using it and not seeing Always on display text means it is off in the settings
chirogan said:
Always on display is activated by default (default settings is "Tap to show") Unless you turn it off manually on the settings, it still is always on and drains that much battery as it needs to be always ready to be tapped. Not using it and not seeing Always on display text means it is off in the settings
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As I said, always on display is turned OFF in both devices. WiFi is the problem, when it´s turned off in phone, it drains 1 percent (max.) at night, when forget to turn WiFi OFF, it drains 15 percent overnight, which I think is crazy.
Arobase40 said:
That could be a problem in the conception of your apartment or your house and the material or furniture in between one of the phone and the wifi router. I have got such a problem but with bluetooth headset when going to the water closet (interference issue) in a temporary apartment when my main one has burnt... ^^ lol
So try to switch both phones at least once and see if the problem persists...
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It has nothing to do with signal, if phone is connected all night (router stay ON), there is no drain. But when I turn router off (which I want to) and forget to turn WiFi OFF in phone, it drains 15 percent overnight. On both A52s phones. On my S21 Ultra there is zero drain overnight, I can calmly leave WiFi on and turn router off.