okay--i've been struggling with this all week and I can't figure out what is doing this. It might be bluetooth but it could be something else.
As I understand it Wifi should turn off when I put the phone in standby. For the first half of today that was the case. then mysteriously, it stopped turning off and guess what, my battery usage disappeared.
I have checked my BsB tweak settings, it is not set to have wifi on in standby. I have checked my wireless connections to disconnect after 30 seconds. Although that probably only works if i am away from a wifi signal all together.
so what else do i need to do to switch it back to default--I don't want wifi on when it's on standby. At the least, i want to be able to toggle it like it's supposed to.
thanks for the help. Once i get this figured out I am pretty confident my battery usage will be good.
I'm sure there are others who have experienced this problem. Even though I show no wake locks my phone drains at an unacceptable rate while on my Wifi at home. My phone can have a 60% battery when I go to bed, and be almost dead by the time I get up. The only clue that shows up in Android System Info or Spare Parts is network usage by '0' which is something with root access.
This is happening regardless of Rom. I've tried stock, Syndicate Frozen, Urban Fury, Bonsai, Stock Plus, and maybe another I'm forgetting. They all drain the crap out of my battery with wifi on at home so obviously this isn't a rom issue.
This leaves me to believe that either something on my network is forcing data to my phone keeping it from deep sleep, or the router itself is the cause. Turning on my phone to 3G, my battery life is spectacular overnight. It deep sleeps like it's had a case of beer with a bottle of nyquil as a chaser before bed. 1% an hour.
So, I've ordered a different router to see if that's the issue. I've googled my current router which is a D-Link DIR-655 and seems like others have had similar battery drains using that router but no one can emphatically say it for sure is the router. Guess we'll see when the new router arrives if it is indeed the DIR-655. Otherwise the next step is disconnecting everything else that is connected to my network (3 computers, 2 printers, XBox, Wii and a Blu-Ray player. I just wanted to point out to anyone else having issues with wifi and weird battery drain, that it may not be the phone that is the problem.
I too have massive battery drain when using Wifi. It doesn't matter what Wifi network I'm attached to (work/home/friends/etc), I burn about 10% + per hour on idle; whereas on 3G is burning only ~2%/hour on idle. On stock, Wifi was my battery saving grace.
I've just given up on using Wifi for daily use. I use 3G for everything now.
I hope the newest version of SFR (whatever the new one will be called) will remedy this problem I have. I haven't posted about it in the rom thread since I had a feeling it was just my phone or another bad flash in CWM.
I've been using that OS Monitor app to try and find the problem. On 3G all the network interfaces have static receive and send amounts as long as I'm not doing anything that requires data. Connected to my home wifi, there is a constant trickle of data.
When I let the phone sit overnight, there was over 4mb of data received, even if I turn off any kind of auto syncs on the phone.
wifi settings
Don't know if this will work for you but you can try. In the wifi settings click the menu button and select advanced then set the wifi to never sleep. I know it's counter intuitive but I went to sleep last night at 61% and woke to 57%. Wifi has been fine for me since changing that policy in the wifi advanced settings.
android_mp99 said:
Don't know if this will work for you but you can try. In the wifi settings click the menu button and select advanced then set the wifi to never sleep. I know it's counter intuitive but I went to sleep last night at 61% and woke to 57%. Wifi has been fine for me since changing that policy in the wifi advanced settings.
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Click to collapse
Mine has been set at never sleep since I got the Epic in September, and I double-check after each custom rom flash. Good looking out though.
nikon120 said:
Mine has been set at never sleep since I got the Epic in September, and I double-check after each custom rom flash. Good looking out though.
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Same here. Mines always been set to never sleep.
Edit: I just tested my phone on my work's wifi network. CPU Spy says it's going into deep sleep just fine. OS monitor shows a static data received/sent number once I was connected. Obviously something about my home network is the problem.
android_mp99 said:
Don't know if this will work for you but you can try. In the wifi settings click the menu button and select advanced then set the wifi to never sleep. I know it's counter intuitive but I went to sleep last night at 61% and woke to 57%. Wifi has been fine for me since changing that policy in the wifi advanced settings.
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Click to collapse
That is my general experience, too. These settings usually keep my WiFi usage low overnight.
But some nights, inexeplicably, I will wake up to find a large battery hit from WiFi. I don't think it is my WiFi router's problem, unless there is some outage duirng the night I am unaware of. Come to think of it, I had that problem last night but did not investigate early this morning before I left. When I get home, I will check with my laptop to make sure my router is running.
I have noticed this too and in particular over the past few days. I'm on the latest bonsai build which does have amazing battery life on 3G but now wifi does draithe battery much more than 3G. This never happened before. I have had my wifi set to never sleep. Any other suggestions?
Obviously haven't tested it overnight yet, but I shut down my one laptop and the constant data trickle immediately stopped. Right now it's looking like something my computer is running might be the culprit. Going to leave it sit overnight to see how it goes.
I found the cause of my drain! Narrowed it down to something from my laptop as when I shut my computer down at night, the drain would go away. The culprit was the HP Printer software for my wireless printer. Once I uninstalled it, the drain went away. Noticed in resource monitor that HPZinw12 was sending a constant stream of data from my computer. Why in the hell it would be also sending to my phone keeping it from sleeping seems pretty odd, but I recommend if anyone else who is having battery problems over wifi and happen to also have an HP printer, you might want to look into this as well.
I'd also add that my solution to getting rid of the problem and still being able to use my printer was just to uninstall the crappy HP software that came with the printer and add the printer through the control panel and let windows 7 install it. It doesn't throw on that HPZinw12 file that apparently polls the entire network constantly.
CapsLockKey said:
I found the cause of my drain! Narrowed it down to something from my laptop as when I shut my computer down at night, the drain would go away. The culprit was the HP Printer software for my wireless printer. Once I uninstalled it, the drain went away. Noticed in resource monitor that HPZinw12 was sending a constant stream of data from my computer. Why in the hell it would be also sending to my phone keeping it from sleeping seems pretty odd, but I recommend if anyone else who is having battery problems over wifi and happen to also have an HP printer, you might want to look into this as well.
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Click to collapse
Since I have been experiencing similar symptoms intermittently and I also have a WiFi printer, I have tried to eliminate this as a potential cause. (I don't run an HP control app on my laptop, but already map the printer directly in Windows 7 like you suggest.)
In my case, I still get the excessive WiFi battery drain, and low battery level upon waking, sometimes overnight. But other nights the problem does not occur. So lately I have made sure that my laptop and printer are powered down before bedtime. And like you, a always have my WiFi sleep policy set to "never" and have a strong WiFi signal. But last night I still had the problem, and awoke to find the battery drained to 45 percent instad of its typical 90 percent.
Interestingly, I noticed not only high WiFi battery usage but also high "Cell standby" usage attributable to the well-known Time Without Signal problem -- and this despite my habitual use of the Airplane toggle workaround, which usually works.
Somehow, something caused both WiFi and cell radios to go crazy overnight.
BTW, I run a stock, unrooted Epic.
So far with SRF v1.1.1, my Wifi is back to normal.
On my work network, I've dropped 4% in 3.5hours with my work email syncing every 15mins. So that's pretty good usage given that sync interval.
I also do not have a printer at home, so the printer bit wouldn't have been a cause for me.
While the printer thing took care of the biggest problem for me, I still don't get as good of battery life overnight leaving my phone on WiFi rather than 3G. There is still something my computer is doing that wakes my phone up occasionally, but at least I'm not going to bed with a 70% battery then waking up to a dead phone. At least I have it narrowed down to one computer (total of 3 on my network), as when I shut that particular one down battery life for my phone is back to 1% an hour while sleeping. If I had to take a guess at this point, might be something with media sharing as I use that one as my primary location for music/videos to stream via Windows Media Center.
CapsLockKey said:
While the printer thing took care of the biggest problem for me, I still don't get as good of battery life overnight leaving my phone on WiFi rather than 3G. There is still something my computer is doing that wakes my phone up occasionally, but at least I'm not going to bed with a 70% battery then waking up to a dead phone.
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How do you know it is your computer? Have you tried just turning it all the way off?
Do you watch the services running on your phone? I routinely stop the DRM service, for example.
Except for the mysterious episodes when I experience this intermittent problem, my overnight battery usage is typically about 1 percent per hour.
boomerbubba said:
How do you know it is your computer? Have you tried just turning it all the way off?
Do you watch the services running on your phone? I routinely stop the DRM service, for example.
Except for the mysterious episodes when I experience this intermittent problem, my overnight battery usage is typically about 1 percent per hour.
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Click to collapse
I've tested over a few nights with a mostly full battery off the charger and reset the timer on CPU Spy. The nights I shut that computer completely off, I get very little battery drain and the phone is mostly in deep sleep according to CPU spy. When it's on, the phone shows a good chunk of CPU at 800mhz and more battery drain.
First of all, I'm doing this guide (wiki[dot]cyanogenmod[dot]com/wiki/Troubleshooting#Battery_recalibration) since I recently rooted and flashed CyanogenMod 7.0.3. One of my questions was this: What's the quickest way to drain my battery? Currently, I have airplane mode off, wifi on, sync on, GPS/Navigation on, and I'm watching a Netflix movie with the screen at the brightest setting. It's been like this for maybe ten minutes and it's still at 100%. Since I'm going to sleep soon, I was hoping it would be quicker to eat up the battery.
Secondly: 'Cell Standby' keeps eating up all my battery. Seeing as how I don't have a cell coverage plan and I always use my phone with airplane mode (with wifi on), why does 'Cell Standby' use so much power?
Anyways, does anyone have any more battery saving options? I wouldn't like to turn off wifi or sync.
harry_seaward said:
First of all, I'm doing this guide (wiki[dot]cyanogenmod[dot]com/wiki/Troubleshooting#Battery_recalibration) since I recently rooted and flashed CyanogenMod 7.0.3. One of my questions was this: What's the quickest way to drain my battery? Currently, I have airplane mode off, wifi on, sync on, GPS/Navigation on, and I'm watching a Netflix movie with the screen at the brightest setting. It's been like this for maybe ten minutes and it's still at 100%. Since I'm going to sleep soon, I was hoping it would be quicker to eat up the battery.
Secondly: 'Cell Standby' keeps eating up all my battery. Seeing as how I don't have a cell coverage plan and I always use my phone with airplane mode (with wifi on), why does 'Cell Standby' use so much power?
Anyways, does anyone have any more battery saving options? I wouldn't like to turn off wifi or sync.
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Have you tried different radios? also you can overclock and undervolt, those all can make a huge difference in your battery life.
Set you brightness to a low level and turn off auto brightness.
Use a darker colored background,this will normally use less lcd power.
Also GPS can eat up alot of battery.
You may want to change your sync/ push options to update less often.
Not too familiar with the cell standby eating up battery life, normally with airplane mode this should stop the phone from searching for service. also try battery calibration after you install any rom. you can find this in the market.
Hope this was somewhat helpful.
good luck!
I've had my V20 for just over 2 weeks now and found something strange regarding wifi.
Normally I set my phone to keep wifi on, even when asleep because cell reception at my office is spotty and staying connected to WiFi used to keep the battery taking a hit during the day. But, I left my phone off the charger overnight last week and saw my battery drop 11% in just under 8 hours. That seemed higher than my old phones so I installed BBS to see if anything was misbehaving when I'm not using my phone. To my surprise, no apps were causing a large number or long duration wake locks but my phone was only in deep sleep for 25% of the night when left off the charger.
While I was testing different configurations I left wifi on, but set it to disable when sleeping and sure enough, my phone stayed asleep for 80%+ and the 8 hour drain dropped to 5%. I havent been able to find any other combinations of settings that get the phone to sleep.
Has anyone else seen thing on their V20?
Only 4% drop at worst over night with Wi-Fi left on here.
Hey shwnr11, thanks for the reply. Just to clarify, you had the setting "Keep wifi on during sleep" set to always as well?
I always have wifi on at home, but unless I set wifi to turn off when sleeping, I see the drain.
nafran said:
Hey shwnr11, thanks for the reply. Just to clarify, you had the setting "Keep wifi on during sleep" set to always as well?
I always have wifi on at home, but unless I set wifi to turn off when sleeping, I see the drain.
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Does this help....see pic
Yep, that's the one. Different wording on the Verizon V20, but same idea. Guess I've still got some searching on my end!
nafran said:
Yep, that's the one. Different wording on the Verizon V20, but same idea. Guess I've still got some searching on my end!
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Click to collapse
Could also be that I'm on a T-Mobile V20.
nafran said:
I've had my V20 for just over 2 weeks now and found something strange regarding wifi.
Normally I set my phone to keep wifi on, even when asleep because cell reception at my office is spotty and staying connected to WiFi used to keep the battery taking a hit during the day. But, I left my phone off the charger overnight last week and saw my battery drop 11% in just under 8 hours. That seemed higher than my old phones so I installed BBS to see if anything was misbehaving when I'm not using my phone. To my surprise, no apps were causing a large number or long duration wake locks but my phone was only in deep sleep for 25% of the night when left off the charger.
While I was testing different configurations I left wifi on, but set it to disable when sleeping and sure enough, my phone stayed asleep for 80%+ and the 8 hour drain dropped to 5%. I havent been able to find any other combinations of settings that get the phone to sleep.
Has anyone else seen thing on their V20?
Click to expand...
Click to collapse
Im on a lg v20 with the same issue. My battery gets destroyed at work when i keep wifi on even with screen on iit driops 25 to 30 percent.
Hi guys,
Hope you all doing great.
Guys i have LG V20 n using from last year. It was working great without any issue. Battery timing was awesome. Giving me 5:30 to 6 hours screen on time. Almost day and Half on normal use. 2 days back something happened no idea what. Now phone idle using more then screen on time and wifi is always on even its off. I tired to uninstall app, then factory reset but still same.... No luck.... Any solution ??
Go to your location setting use the tab in upper right, click setting and turn wifi scanning off.
I tried this but no luck
As i mentioned i tried everything thing, like location off, wifi and Bluetooth scanning off, play services off, Almost everything is off, but still same. No luck...
shazzi said:
As i mentioned i tried everything thing, like location off, wifi and Bluetooth scanning off, play services off, Almost everything is off, but still same. No luck...
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Click to collapse
Try to install battery monitor application (I use betterbatterystats) to find out what is causing your idle drain. But to be honest, I've never got 5-6 SOT. My idle drain is about 0,7% per hour with greenify, managed Google play services wakeup, custom kernel, kernel adiutor and about 80 apps on board.
I'll try and help the best I can..
Within the last year or so..I have been reading about this issue quite often. That is, people posting about "Phone Idle" having high percentage in battery stats. And then they are off to hunt down the culprit. The truth is, "Phone Idle" is NOT eating up your battery. Phone Idle is just that.... Time the phone has spent being idle (being still, or CPU/Battery not being used). Or in this case, percentage of total battery "usage" that belongs to "Phone Idle". In actuality, phone idle isn't "using" anything. The "usage" for phone idle is really time NOT used. A higher percentage is better. If your phone sat for 2 days straight without being used...the phone idle % will be real high. Also, you can't "Greenify" phone idle. You only greenify phone idle when you greenify other apps.....think about it.
And as for Wifi. The Wifi radio on this phone is a bit more power hungry. It doesn't even include any power saving options that some phones, like my Samsung S4 has. My S4 used on average from 2% - 6% depending on signal strength. The V20 can use from 7% - 11% ..again depending on signal strength. If you leave Wifi on overnight and it's in bad proximity to the router..10-11% is normal.
What is your average signal strength for your 4G and cellular (calls)? CDMA has 1X, I'm not sure what GSM uses. If it's in the high 90's and higher, that right there could be chewing up your battery. Phone radio often doesn't even show on the usage list.
How often do you need to charge? Also how much time between a charge and what is your usual screen on time now..after you wrote this post? Phone idle is only at the top because the "idle" time now exceeds the amount of time you have your screen on. ......don't take this the wrong way but some people think the phone idle is actually something that's draining the battery. It's not..it's just placed within the list. Ignore the Mah it shows for it. That just assumes it's some app and it tries to convert everything into mah..and I really don't know how accurate that is. But it obviously doesn't apply to Phone Idle. Speaking of...what is the amount of phone idle time?