Database Users

Screen Battery Usage When Off?

I am trying my best to figure out how I can squeeze extra battery out of the phone. I used to get 3-4 hours of 'screen on' time out of my Galaxy Nexus and now I usually less than 2h with best battery still being less than 3h and that's only when I am around wifi almost all day.
Anyway, in my attempts to identify the drain I obviously saw a lot of the same things other people did: constant wake locks and I know there are threads for that.
However, I have noticed something I do not know the answer to: GSAM reports that my battery uses roughly the same % of battery when the screen is off as when it is on. What the heck? I don't get how my screen uses ANY battery when it is off. Does anyone know why this is reported like this?

You need betterbatterystats

calanizzle said:
You need betterbatterystats
Click to expand...
Click to collapse
I've tried using it but it does not seem to work well for me. I set a custom ref. when I woke up and the battery was at 100% and it seemed to work for a bit but when I checked it 3 hours later after travelling to campus and attending class and it showed no data at all regardless of when I selected it to show me data from (since unplugged, since charged, since custom ref.) Does it not work with stock kernel?
In the mean time, GSAM is providing some good information at least for an initial diagnosis.
Are you implying that it is not correct in telling me that of the 31% of battery used by the screen 17% is discharged while off and 14% while on? It says: Discharge while on/off: 14% / 17%

ohhdavid said:
I've tried using it but it does not seem to work well for me. I set a custom ref. when I woke up and the battery was at 100% and it seemed to work for a bit but when I checked it 3 hours later after travelling to campus and attending class and it showed no data at all regardless of when I selected it to show me data from (since unplugged, since charged, since custom ref.) Does it not work with stock kernel?
In the mean time, GSAM is providing some good information at least for an initial diagnosis.
Are you implying that it is not correct in telling me that of the 31% of battery used by the screen 17% is discharged while off and 14% while on? It says: Discharge while on/off: 14% / 17%
Click to expand...
Click to collapse
Device must be rooted so BBS can work. Try going in advance and check alarms (root needed) SUPERSU will popup and ask for permission. Don't forget to refresh time to time whenever you open it to get latest numbers.

I am rooted
Sent from my Nexus 7

Bump, any ideas about this?

ohhdavid said:
However, I have noticed something I do not know the answer to: GSAM reports that my battery uses roughly the same % of battery when the screen is off as when it is on. What the heck? I don't get how my screen uses ANY battery when it is off. Does anyone know why this is reported like this?
Click to expand...
Click to collapse
Can you please post screen shot?

Here.. Today I've been using it a lot but normally the "off" is a lot higher.
Sent from my Nexus 4

GSam Battery Monitor Screen Usage?

Every night, my battery is drained by 7-8% even though, GPS, WiFi, all radios are off and the phone is in airplane mode (done automatically via LLama scripts). I installed GSam Battery Monitor to try to figure out what was going on and it indicated that even though the screen was dark, it was draining the battery (and was the primary culprit). Is this accurate or is it a bug? Anyone else seeing something like this on their Nexus 4?

Mine shows 78% usage in dark.. I think that just means how much of battery total it was used while the phone screen was off. I'm taking a completely random guess here though.

mrlad said:
Every night, my battery is drained by 7-8% even though, GPS, WiFi, all radios are off and the phone is in airplane mode (done automatically via LLama scripts). I installed GSam Battery Monitor to try to figure out what was going on and it indicated that even though the screen was dark, it was draining the battery (and was the primary culprit). Is this accurate or is it a bug? Anyone else seeing something like this on their Nexus 4?
Click to expand...
Click to collapse
So you reset the app right before going to bed and checked it first thing in the morning and in the 7 hours you slept, the main battery drain came from the screen?
I use the same app and I never noticed anything wrong. Still, battery readings are not always accurate... sometimes when I recharge my phone, it stays 100%for a few hours, then it drops 7-10% in a matter of an hour...and that's completely normal I say you shouldn't worry about it too much as long as you get satisfying usage times..

0rigin said:
I say you shouldn't worry about it too much as long as you get satisfying usage times..
Click to expand...
Click to collapse
I'm not happy w/battery life and trying to track down what the culprit is. If all major services are off at night, 7-8% battery drain doesn't seem normal to me. Granted this is apples and oranges, but my iPad Gen 3 in the same configuration remains at 100% overnight.
If doing nothing drains nearly 10% over 6-7 hours, no surprise I've got issues during the day.

I've noticed the same thing, one time I didnt turn the screen on on my phone, then I went to screen and it showed 0% discharge while screen on, and 7% discharge while off. I'm running the latest version of Viper, I'm also confused and I wonder if theres some issue where maybe power is being sent to the screen even though it's not on.
mrlad said:
I'm not happy w/battery life and trying to track down what the culprit is. If all major services are off at night, 7-8% battery drain doesn't seem normal to me. Granted this is apples and oranges, but my iPad Gen 3 in the same configuration remains at 100% overnight.
If doing nothing drains nearly 10% over 6-7 hours, no surprise I've got issues during the day.
Click to expand...
Click to collapse

After my 7 hours sleep.. Every morning my phone uses 2% battery drainage at MAX. i.e.: Wifi Edge Sync etc ALL OFF. And I am getting 4+ screen time on my phone with moderate usage. Pretty happy with the battery life so far.

Hi
mrlad said:
Every night, my battery is drained by 7-8% even though, GPS, WiFi, all radios are off and the phone is in airplane mode (done automatically via LLama scripts). I installed GSam Battery Monitor to try to figure out what was going on and it indicated that even though the screen was dark, it was draining the battery (and was the primary culprit). Is this accurate or is it a bug? Anyone else seeing something like this on their Nexus 4?
Click to expand...
Click to collapse
Your phone probably isn't going into sleep. The Nexus 4 seems to be prone to insomnia caused by apps that don't cause a problem on other devices.
To check this download CPU Spy from the play store. Run it, reset timers to zero, and with the phone on battery (i.e. not on charge) let it rest for 30 minutes or so, then check the figures.
You should see Deep Sleep as > 90%, if not, or it is listed as an unused state, your phone isn't sleeping.
To fix this you either work forward or backwards!
Work forward:
Factory reset, install CPU Spy, run the test and see your phone is now deep sleeping.
Start installing applications one by one and after each install, run the app, then run the CPU Spy test again.
Eventually you will find the app causing the problem, all you can do is avoid that app. Note you may have more than one app causing a problem so keep checking after each install.
Work backwards:
Start by un-installing an app at a time restarting your phone in between then running a CPU Spy test. Start with any live wallpapers (even if not set to be used) you have installed, then any weather widgets. Note just un-installing is not enough, you must restart after each one.
Eventually your phone will start deep sleeping again so finding the problem app.
Hope that helps.
Regards
Phil

I tried your advice, and my phone is going into deep sleep around 90% of the time, so I don't think that it's a rogue app. I keep my phone on the dimmest setting at all times, and I only get 2.5 hours of screen on time. I have an anker battery.
PhilipL said:
Hi
Your phone probably isn't going into sleep. The Nexus 4 seems to be prone to insomnia caused by apps that don't cause a problem on other devices.
To check this download CPU Spy from the play store. Run it, reset timers to zero, and with the phone on battery (i.e. not on charge) let it rest for 30 minutes or so, then check the figures.
You should see Deep Sleep as > 90%, if not, or it is listed as an unused state, your phone isn't sleeping.
To fix this you either work forward or backwards!
Work forward:
Factory reset, install CPU Spy, run the test and see your phone is now deep sleeping.
Start installing applications one by one and after each install, run the app, then run the CPU Spy test again.
Eventually you will find the app causing the problem, all you can do is avoid that app. Note you may have more than one app causing a problem so keep checking after each install.
Work backwards:
Start by un-installing an app at a time restarting your phone in between then running a CPU Spy test. Start with any live wallpapers (even if not set to be used) you have installed, then any weather widgets. Note just un-installing is not enough, you must restart after each one.
Eventually your phone will start deep sleeping again so finding the problem app.
Hope that helps.
Regards
Phil
Click to expand...
Click to collapse

SM-N9005 4.4.2 Battery Issue

hoping to get some help...
i have update my SM-N9005 from 4.3 to 4.4.2 through Odin. rooted. with CWM Recovery.
tried probably 3 custom ROM that support 4.4.2 and end up on the Official leaked.Build 4.4.2 ( rooted)
the battery performance is driving me crazy.
on 4.3 stand By mode i used to loose 0.8 per hour now with the same setting same features turned on. i loose 2.3 percent per hour.
on 4.3 screen time with the lowest Brightness i lost 1 percent every 10 minutes. now i loose 3% with same brightness level. 3 percent every 10 minutes.
Android OS and Android System are always on top of screen in the battery Graph. i
media is also on top of the screen in the battery graph.
have tried a lot of solutions and factory reset with no luck at all. ( i have placed the device with Airplane mode with no SUCCESS )
installed a lot of battery analyzer apps did not have a clue who's eating all the Juice.....
any idea how to fix this??

SAMERKAD said:
hoping to get some help...
i have update my SM-N9005 from 4.3 to 4.4.2 through Odin. rooted. with CWM Recovery.
tried probably 3 custom ROM that support 4.4.2 and end up on the Official leaked.Build 4.4.2 ( rooted)
the battery performance is driving me crazy.
on 4.3 stand By mode i used to loose 0.8 per hour now with the same setting same features turned on. i loose 2.3 percent per hour.
on 4.3 screen time with the lowest Brightness i lost 1 percent every 10 minutes. now i loose 3% with same brightness level. 3 percent every 10 minutes.
Android OS and Android System are always on top of screen in the battery Graph. i
media is also on top of the screen in the battery graph.
have tried a lot of solutions and factory reset with no luck at all. ( i have placed the device with Airplane mode with no SUCCESS )
installed a lot of battery analyzer apps did not have a clue who's eating all the Juice.....
any idea how to fix this??
Click to expand...
Click to collapse
No wakelocks in BBS?

Install Better Battery Stats. Leave the screen off for 1 hour and tell us what the top Kernel Wakelocks are.

aydc said:
Install Better Battery Stats. Leave the screen off for 1 hour and tell us what the top Kernel Wakelocks are.
Click to expand...
Click to collapse
great, ill update...

I have the same problem, android system is always on top but i can achieve 6 hours of screen.. i will post my wakelocks

Guys,
really it was so big problem to check page 2 and woila :
http://forum.xda-developers.com/showthread.php?t=2609260
Check the problems there, post yours, wait for answer, Samsung is probably monitoring this thread... And
this is not QA section...

is this screen shot Enough??

Or this
Sent from my SM-N9005 using XDA Premium 4 mobile app

SAMERKAD said:
is this screen shot Enough??
Click to expand...
Click to collapse
Partial Wakelocks are usually caused by apps running in the foreground. There's usually not much you can do about that. If you are actually using the phone, battery will run out. What you need to find out is what happens when you are not using the phone.
Do this:
1) Charge the phone to 100%. Disconnect the cable.
2) Let the phone sit idle for 1-2 hours with screen off.
3) Get Kernel Wakelocks from Better Battery Stats.
Then you'll know what's eating your battery when you are not actually using the phone.
In my case, I get ril-fd, l2-hsic and wlan_rx_wake wakelocks the most. I know the causes, but I can't do anything about them without rooting.

aydc said:
Partial Wakelocks are usually caused by apps running in the foreground. There's usually not much you can do about that. If you are actually using the phone, battery will run out. What you need to find out is what happens when you are not using the phone.
Do this:
1) Charge the phone to 100%. Disconnect the cable.
2) Let the phone sit idle for 1-2 hours with screen off.
3) Get Kernel Wakelocks from Better Battery Stats.
Then you'll know what's eating your battery when you are not actually using the phone.
In my case, I get ril-fd, l2-hsic and wlan_rx_wake wakelocks the most. I know the causes, but I can't do anything about them without rooting.
Click to expand...
Click to collapse
thanksssssss
ill check that for sure... but just to know, can i disable any of these (ril-fd, l2-hsic and wlan_rx) incase they were the problem?
im rooted on Leaked 4.4.2

im losing only 1 to 2 % in idle, way better then JB, but interactive use sucks the soul out of it. rarely pass 30 hours of use.

Im not getting anything
Sent from my SM-N9005 using XDA Premium 4 mobile app

..
Sent from my SM-N9005 using XDA Premium 4 mobile app

I've noticed the first 10 percent (from 100 to 90) go away fast as hell. Use your phone as you would today, just make sure you have enough juice by the end of the day. Leave it as it is overnight and then post your screenshots.. You don't seem to have any wakelocks so your battery shouldn't be draining.. Mine is going like 1% for 8 hours or something, the problem starts when I turn me screen on lol!

I had this problem on my all my Samsung device
the only solution was to take out the battery for a few seconds
worked for me on
note 2 and 3
s4 9505 and 9500

testmonkey1 said:
I've noticed the first 10 percent (from 100 to 90) go away fast as hell. Use your phone as you would today, just make sure you have enough juice by the end of the day. Leave it as it is overnight and then post your screenshots.. You don't seem to have any wakelocks so your battery shouldn't be draining.. Mine is going like 1% for 8 hours or something, the problem starts when I turn me screen on lol!
Click to expand...
Click to collapse
i am loosing more than1.5% per hour where on stand by mode... everything is switched of.f im surprised there is no wakelocks showing... ill wait till the end of the day.
its been 4 hour since last charge and now im on 93%..
im assuming the drain is happening due to the bad reception where i am at.
how do you manage 1% per 8 hours that's Awesome (knock on wood) :laugh: .. is this with WIFI and Data on?

i don't understand ... how come i have no wakelock after screen off.. and my battery draining 1.5 % per hour on stand by mode.... and android Os always on top ?

BBM.
And I haven't done anything special, actually you have to do something to NOT get great battery life while idle. After a factory reset, nothing disabled (so G+, G search and all those wake cycles still present) with WiFi off and Mobile Data ON I lost the usual 1 to 2% per 8 hour sleep. The problem starts for me when I turn on my screen, not when it's turned off

aydc said:
Partial Wakelocks are usually caused by apps running in the foreground. There's usually not much you can do about that. If you are actually using the phone, battery will run out. What you need to find out is what happens when you are not using the phone.
Do this:
1) Charge the phone to 100%. Disconnect the cable.
2) Let the phone sit idle for 1-2 hours with screen off.
3) Get Kernel Wakelocks from Better Battery Stats.
Then you'll know what's eating your battery when you are not actually using the phone.
In my case, I get ril-fd, l2-hsic and wlan_rx_wake wakelocks the most. I know the causes, but I can't do anything about them without rooting.
Click to expand...
Click to collapse
What are the causes for wlan rx wake? 12hsic is related to mobile data i guess.

sohebq said:
What are the causes for wlan rx wake? 12hsic is related to mobile data i guess.
Click to expand...
Click to collapse
It's caused by broadcast packets sent by other devices in your network waking the phone up. The solution is to install a custom kernel that filters such packets.

Battery life slightly decreased

Hi guys... its almost 4 or 5 months i own this phone, i tried a lot of roms, and mods ... but in this period of time im noticing that the battery life is lower then ever... i lose 10% in 5 min... i cant do 3 hours on the phone that the phone will turn off... I tried everything, wakelocks, battery apps but nothing works... Im disperate, what can i do? anyone else have this problem? A thing I have to say is that i played when the phone was charging or did bad cycles of charging

dark sorrow said:
Hi guys... its almost 4 or 5 months i own this phone, i tried a lot of roms, and mods ... but in this period of time im noticing that the battery life is lower then ever... i lose 10% in 5 min... i cant do 3 hours on the phone that the phone will turn off... I tried everything, wakelocks, battery apps but nothing works... Im disperate, what can i do? anyone else have this problem? A thing I have to say is that i played when the phone was charging or did bad cycles of charging
Click to expand...
Click to collapse
If you've tried wakelocks, then download two apps: advanced battery calibrator and batterycalibration. Follow the instructions of batterycalibration first. Then the next day, charge your phone to 100 percent, then follow the instructions on advanced battery calibrator.
That should fix the battery life.
Also do you mind posting the screenshots from wakelock detector (it's an app).

prowsterz said:
If you've tried wakelocks, then download two apps: advanced battery calibrator and batterycalibration. Follow the instructions of batterycalibration first. Then the next day, charge your phone to 100 percent, then follow the instructions on advanced battery calibrator.
That should fix the battery life.
Also do you mind posting the screenshots from wakelock detector (it's an app).
Click to expand...
Click to collapse
I tried both apps but nothing... Here is the screenshot from the wakelock app with the phone just turned on

Almost 100% Awake time draining my battery

My battery life had previously been fine. We had that last security update from AT&T and suddenly, my device is awake almost 100% of the time. Android OS is always at the top of my stats and awake time shows at 99%. I used the light version of Wakelock Detector (which doesn't require root) and it's not really showing anything, but I deleted all apps showing the most wakelocks anyway and I'm still at 99% wake time. I even took out my SD card to test that and it hasn't changed anything. I also disabled GPS to test and "awake time" still stayed at max.
I'm on the verge of wiping it, but I have already done that once to resolve other issues and I know there has to be a cause to all of this. Is anyone else experiencing this since the last update? Anything I haven't tried that someone recommends? I have not installed any new apps or anything.
One thing to note is that my drain is only around 1%/hr at idle, but I'm pretty sure the phone still shouldn't be awake almost 100% of the time.

1%/hr drain while idle means 4 days of standby i think you're fine
greyhulk said:
One thing to note is that my drain is only around 1%/hr at idle, but I'm pretty sure the phone still shouldn't be awake almost 100% of the time.
Click to expand...
Click to collapse

percussionking said:
1%/hr drain while idle means 4 days of standby i think you're fine
Click to expand...
Click to collapse
That doesn't change the fact that the phone is awake over 99% of the time. After a wipe, it's no longer going that and my idle drain is less. So, something was clearly wrong.
Sent from my SAMSUNG-SM-G935A using Tapatalk

Yeah, you're right if the behavior is different after resetting the phone. I was wondering if maybe Wakelock Detector might see certain features of the QC820 like AOD as applying a wakelock.