Database Info

Battery draining while sleeping? Try this!

This works in VegaN - YMMV...
Settings -> Wireless settings -> then hit the menu button, and choose "Advanced", then select "WiFi Sleep policy" (It was set to NEVER!)
Spare parts showed (via 'Spare Parts' app) that the WiFi was on 100% of the time - even while sleeping..

I'll give this a try tonight when I go to sleep.

I like to leave it at "never" so that there is no delay upon wake up to connect to wifi. With the table in use (vs. sleeping) the battery life is so long; almost 10 hours, I don't worry about a little battery drain while sleeping. Just connect it to the charger once a day or less.

insight3fl said:
I like to leave it at "never" so that there is no delay upon wake up to connect to wifi. With the table in use (vs. sleeping) the battery life is so long; almost 10 hours, I don't worry about a little battery drain while sleeping. Just connect it to the charger once a day or less.
Click to expand...
Click to collapse
You get a 'little' battery drain while sleeping? If I leave my gtab unplugged overnight, it loses about 4% per hour.. or about 30% overnight. That's why I'm trying different things. 30% overnight isn't a little to me -- it's way too much.
A tablet like this should all but go into a state of suspended animation while sleeping...

30%, really? That sounds as if there's something else going on rather than just wifi draining.
Edit- Some thoughts. There are some apps that require permission to update or snag some ads from the net and operate on their own.
Go take a look at what you have installed and look at your screen timeout settings.
If you have CWM and can get to recovery, wipe battery settings and then reboot/charge. Some people drain completely then charge to get to 100%. Some threads seem to show this is a Vegan issue. (Mine gets to 97 tops but as long as battery life is not affected, I'm good)
HTH

DudeInMyrtleBeach said:
You get a 'little' battery drain while sleeping? If I leave my gtab unplugged overnight, it loses about 4% per hour.. or about 30% overnight. That's why I'm trying different things. 30% overnight isn't a little to me -- it's way too much.
A tablet like this should all but go into a state of suspended animation while sleeping...
Click to expand...
Click to collapse
Just curios, why would you leave it on all night when it will never be used? it only takes a minute to boot in the morning when you turn it on.

insight3fl said:
Just curios, why would you leave it on all night when it will never be used? it only takes a minute to boot in the morning when you turn it on.
Click to expand...
Click to collapse
I leave it in sleep mode because its my alarm clock. I also now leave it plugged in.
I've tried draining the battery then resetting stats in clockwork. If tried about every variation of doing that I can think of short of waiving a dead chicken over it.
sent from my g-tablet using tapatalk

I've left mine on and unplugged(it went to sleep) for 3 or 4 days and come back with battery still. 30% overnight seems odd.

skeeterpro said:
30%, really? That sounds as if there's something else going on rather than just wifi draining.
Edit- Some thoughts. There are some apps that require permission to update or snag some ads from the net and operate on their own.
Go take a look at what you have installed and look at your screen timeout settings.
If you have CWM and can get to recovery, wipe battery settings and then reboot/charge. Some people drain completely then charge to get to 100%. Some threads seem to show this is a Vegan issue. (Mine gets to 97 tops but as long as battery life is not affected, I'm good)
HTH
Click to expand...
Click to collapse
I think you might be right, because I used Cyanogen Mod for a month and a half and had no issue like this. Now I am using TNT Lite 4.2.4 and I am still having no battery life issue.
Also I have never been not able to charge my Tab to 100%. So I may suggest that you guys try switching to cyanogen mod or tnt lite.

[Q] Battery loss during standby. . .

Is anybody seeing heavy battery loss during standby mode?
On average my TF is losing between 3.5 and 5% battery in standby mode. I have done a few tests with and with out airplane mode and it does not change.
I currently have an RMA setup with ASUS but I dont want to have to send it back and wait 14 days, so I wanted to reach out here first.
Thanks in advance,
Brandon

Every device I've ever owned has lost power during standby. That's the tradeoff. Otherwise, you could, you know...turn it off?
Windows has that nice "hibernate" hybrid.
It's totally not worth an RMA...don't let your OCD win.

There are a few processes that run in the background like Android OS, WiFi, keyboard etc. It needs to be reactive to certain signals so it can't be off completely. The iPad has amazing stand-by times but I don't know why. I just saw it when I borrowed one for a day from a friend.
I would NOT RMA my device unless it's a significant drop in battery life (>10%/h); it's just the way it is mate!
But what I realized is after I rooted, installed SetCPU and set the governor to ondemand the battery life has increased significantly. It idles at 216MHz now.

mine doesn't have a great standby time either, pretty bad actually when you compare it to my xoom. however its an issue that should be fixed with a software update and it shouldn't require an rma.
Sent from my ADR6400L using Tapatalk

Check if you have your Wifi on sleep also?? Depending on number of applications that you use for updating it might be using your battery.

There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk

I just turn on airplane mode when I know it is going to sit, and it burns about 1% an hour.

wynand32 said:
There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
+1 on this. Looking forward to the updates

wynand32 said:
There are a number of other threads already discussing the issue of battery life in standby, but here's my conclusion: the TF has an issue with wifi that if you set it to stay on while the TF's screen is off (a setting in the wifi section of system settings), it burns quite a bit of battery while on standby. If you set it to turn off when the screen is off, then it doesn't.
I know this is a bug with the TF because the Xoom does not exhibit this behavior. It burns less than .5%/hour when on standby with wifi set to stay on when the screen is off. The TF gets this same performance (<.5%/hour burn) on standby only if wifi is set to turn off. Otherwise, I'm getting the same as you: around 3.5%/hour burn rate.
I'm assuming that the TF's wifi just doesn't enter whatever low-power state it's supposed to enter while on standby. My second assumption is that this is something that will get fixed in an update.
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
Is there an adjustment for the Wifi and/or app settings. In general the second or third largest power consumer in these devices is the radios. The radio needs to be powered up whenever a connection needs data. This can be for keep alive messages that verify the existence of a wifi connection to an access point, or from an app such as gmail, calendar, etc. checking for new data. In any case there may be settings that allow one to decrease the frequency of these operations.

ssj4vegita2002 said:
I just turn on airplane mode when I know it is going to sit, and it burns about 1% an hour.
Click to expand...
Click to collapse
FYI, I did a few tests with airplane mode on and I was still losing around 3.5%-5% battery life.
I did do a few more tests, and my most recent test I found interesting.
I use my TF as usual and had a few applications running, I then turned off the screen and let it sit for an hour and 4% battery life was used.
Then I powered down my TF fully, then I powered it back up and turned off the screen. (Currently the TF is up and running but no applications have been opened aside from backround apps Syncing).
I put the TF into standby (turned off the screen) at 1:37 am and I had 53% battery life.
I checked on the TF in the morning at 8:51am, and I had 51% battery life.
So in just over 7 hours my TF only used 2% battery life in standby which is a very acceptable range.
Conclusion, what ever apps we are opening and using under normal use are not being fully closed out, and are running in the backround, not the backround services as per the airplane mode test.
I will do a few more tests tommorrow, I hope this helps and I look forward to others feedback!
Brandon

Brandon - Please check out yours with wifi set to turn off when the screen is off. In all of my testing (similar to yours), that made the difference between great standby performance (<.5%/hour) and not-so-great (3.5%/hour or more). Nothing else seemed to matter, including manually turning off just about every app that normally runs in the background and verifying that they stayed off.
Hopefully soon Asus will also fix the battery stats bug so that we can see what apps/system components are actually using power on standby. Or they'll just fix wifi so that it sleeps as it should.
Sent from my Transformer TF101 using Tapatalk

I have already done the tests with WIFI turned off and also with the TF in Airplane Mode.
So far the only time I have gotten great standby time was when I rebooted my TF and did not open any applications. (WIFI was on FYI)
Brandon

so, the last two night i've gotten great result from stand by mode. The first night i went and killed couple of programs, before putting in AP mode for the night. 12:45 am till 9:00 am from 78% 75%. Last night at 12:00am had 34% this morning at 8:00 it dropdown to 32%.

I took a screenshot of the battery usage after waking up in the morning. Wifi was left on with the sleep policy set to sleep on screen off. It seems to turn back on intermittently but the awake bar seems to happen more often the longer it is in sleep. Is that meant to happen? What does awake signify? That the screen is on?

background data probably running in the background
like weather updates to it to refresh every 4 hours or something

its weird though, towards the right theres like 2 times where the device is awake for long periods of time :S

brandonpaz said:
Is anybody seeing heavy battery loss during standby mode?
On average my TF is losing between 3.5 and 5% battery in standby mode. I have done a few tests with and with out airplane mode and it does not change.
I currently have an RMA setup with ASUS but I dont want to have to send it back and wait 14 days, so I wanted to reach out here first.
Thanks in advance,
Brandon
Click to expand...
Click to collapse
Would you try "Task killer" for decreasing battery loss?

My battery seems to be dying alot quicker now I have the dock. Hopefully a new firmware will come out that'll lower the battery consumption of the dock when its in standby.

Spends too much in in 400mhz speed

My phone half of the time stays at 400MHz.
Is that normal?
even when is idle and screen is switched off. battery life is not that good though i am not sure if it should be better on an S6,
I am rooted and I have uniKernel.
Note that I do have Deep sleep but only like half of the time even when my phone display is off.

Phone CPUs adjusts their speed depending upon the need to conserve power.

bebseh said:
My phone half of the time stays at 400MHz.
Is that normal?
even when is idle and screen is switched off. battery life is not that good though i am not sure if it should be better on an S6,
I am rooted and I have uniKernel.
Note that I do have Deep sleep but only like half of the time even when my phone display is off.
Click to expand...
Click to collapse
If you mean you have no deep sleep you can root and download BetterBatteryStats or Wakelock detector to see what is causing the wakelocks.
GSM battery monitor works without root, but you can't see the wakelocks, but you can see what apps are draining your battery.

Faspaiso said:
If you mean you have no deep sleep you can root and download BetterBatteryStats or Wakelock detector to see what is causing the wakelocks.
GSM battery monitor works without root, but you can't see the wakelocks, but you can see what apps are draining your battery.
Click to expand...
Click to collapse
Hello
I do have deep sleep, pbbly +50% of the time,
However it does spend quite some time in 400mhz even when is idle.
is this normak ? i dont remember seeing the same behavior on my Note 3.

bebseh said:
Hello
I do have deep sleep, pbbly +50% of the time,
However it does spend quite some time in 400mhz even when is idle.
is this normak ? i dont remember seeing the same behavior on my Note 3.
Click to expand...
Click to collapse
Well I have 98-99% deep sleep buy I'm also on a custom kernel + Rom without all the battery hungry apps like Facebook, messenger, Spotify and so on, so only thing that wake my phone from time to time is Google play services.
On stock Rom I mean I had around 50-70% so if you're using a lot of battery hungry apps (that wake your phone a lot) I think it's normal.

I'm getting desperate with the whole battery situation

So I had the S6 last year and ended up returning it due to the poor battery performance. I ended up back on an iPhone. When the news of a larger battery and better chip performance come out for the S7 I was ready to jump back on the ANdroid bandwagon.
So fast forward. I just unplugged my phone at 100%. It's been a half hour and I'm already at 95%. I have to consistently keep the power save mode on to conserve battery. It's getting somewhat annoying because it screws up updates and notifications as well as some app don't work well.
I've tried conserving battery by shutting off certain features, keeping display brightness down etc while having power save mode off. It just seems that Android System is chewing through the battery. I don't know what the hell is doing it either.
I don't want to cripple the phone by keeping it on power save mode all the time. Does anyone have any recommendations that will help me or I might have to return this phone and ALL the free stuff I got with it.
Thanks

Half hour of use at 95%? Cus that's not bad at all. I'm consistently getting 5-7 hours of SoT.

I think OP meant half hour of standby because im experiencing the same type of battery drain. But even with this drain im getting about 10-12 hrs of moderate use with 4.5 hrs SoT

Turn AOD off. Let the battery run down... Turn off fast charge. Fully charged the phone. Don't disable anything else. Go through a couple cycles like this. You'll see a difference. Then use package Disabler pro and disable what you don't use. You'll be happy...

So for the hell of it I turned off location in the drop down menu so see how it affects battery life. I have been off the charger for about 2.5 hours now. I have used the phone here and there throughout that time. When it came off the charger it was at 98% and it's at 91% now.
That's 7 percent with use in 2.5 hours whereas before it lost 5% in a half hour on standby with no use.
What the hell is pinging location over and over? If you hold down the location drop down menu option the phone displays the apps that use location. All of them say low battery use.
Is there a way to set these up to only use location when the app is being used?

amartins02 said:
...
What the hell is pinging location over and over?
Click to expand...
Click to collapse
Probably this
https://www.google.com/maps/timeline

whelmar said:
Turn AOD off. Let the battery run down... Turn off fast charge. Fully charged the phone. Don't disable anything else. Go through a couple cycles like this. You'll see a difference. Then use package Disabler pro and disable what you don't use. You'll be happy...
Click to expand...
Click to collapse
Is fast charge bad for the battery or something? I've gone through about 3 cycles with fast charge on and battery still isn't great. Hoping it will improve after about 3-4 more cycles

All I know is that it made a huge difference for me. I think that it's more of a battery calibration thing. It really doesn't take that much longer to charge the phone with fast charge off...

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Samsung Galaxy M30s's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!

I dont see any standby drain. When I keep data on (locaion,wifi and bluetooth off) in the night it drained only 2-3 % battery. with data off/location/wifi/bluetooth off it was 100% in the morning.
But I have a different issue, When I am using the phone, I see a drain now which was not there initially. Android system is draining most of the power. I usually used to get 9+ hrs SOT with 2 days usage. but now Both have dropped below to 1&1/2 day and around 8 hours SOT.. Tried all the things found on net, but it didnt helped.

Same things happens with after update. Before the update it works for 2 days but now a it runs for 1 & half day max.

vishal.gajjar.like said:
Same things happens with after update. Before the update it works for 2 days but now a it runs for 1 & half day max.
Click to expand...
Click to collapse
I did the update too, so you think it caused by update? Is samsung deliberately doing it as everyone suspects of them doing that they slow down the devices or its just a bug they didn't realize?

Maybe it's a bug.
All tests are under airplane mode, no cell signal.
WIFI ON with "battery saver" OFF takes 0.5% per hour drain.
WIFI OFF with "battery saver" ON takes <0.1% per hour drain.
BUT !!!
WIFI ON and "battery saver" ON at the same time, the standby drain will up to 1.3~2% per hour.
I have test this for more than 10 times, trying to avoid any other cause.
Finally I'm sure that "battery saver" mode will cost more standby drain if WIFI is ON. （ yeah, that sounds ridiculous
But I don't know why.

lfk0000 said:
I have test this for more than 10 times, trying to avoid any other cause.
Finally I'm sure that "battery saver" mode will cost more standby drain if WIFI is ON. （ yeah, that sounds ridiculous
But I don't know why.
Click to expand...
Click to collapse
Maybe one of your apps ?
Today night 8 hours : airplane mode, communication OFF drain=0% ( jawdrop).
Never expected anything like that.

pabgar said:
Maybe one of your apps ?
Today night 8 hours : airplane mode, communication OFF drain=0% ( jawdrop).
Never expected anything like that.
Click to expand...
Click to collapse
The point is "battery saver" ON , could you turn it on and have a test ?

lfk0000 said:
The point is "battery saver" ON , could you turn it on and have a test ?
Click to expand...
Click to collapse
Shure. I'll do it tonight

lfk0000 said:
Maybe it's a bug.
All tests are under airplane mode, no cell signal.
WIFI ON with "battery saver" OFF takes 0.5% per hour drain.
WIFI OFF with "battery saver" ON takes <0.1% per hour drain.
BUT !!!
WIFI ON and "battery saver" ON at the same time, the standby drain will up to 1.3~2% per hour.
I have test this for more than 10 times, trying to avoid any other cause.
Finally I'm sure that "battery saver" mode will cost more standby drain if WIFI is ON. （ yeah, that sounds ridiculous
But I don't know why.
Click to expand...
Click to collapse
What do you mean by battery saver ? How can i turn it OFF?
I noticed the same problem
My battery now 76% and Android system takes 7% it is too much!

M-772007 said:
What do you mean by battery saver ? How can i turn it OFF?
I noticed the same problem
My battery now 76% and Android system takes 7% it is too much!
Click to expand...
Click to collapse
I mean this : https://photos.app.goo.gl/8EDCvkKQuieJGCueA
You can find it in quick panel or an app called "Smart maneger".
If you didn't turn it on , it's off defaultly .
Maybe your problem has nothing to do with this.

Did you guys find any solution. Found today the android system used 11% draining the battery

jpaulpra said:
Found today the android system used 11% draining the battery
Click to expand...
Click to collapse
:laugh::laugh::laugh: What you expected ? Let me explain that smartphone is a little computer with operating system - which is essential to it's existence and work.
If you do not want Android to consume energy then you should power off the phone :laugh:
11% is pretty normal

Losing battery when phone is idle, overnight drains about 15-18%%
XDA_RealLifeReview said:
When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Samsung Galaxy M30s's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Click to expand...
Click to collapse
The battery performs well when in use (discharges at the rate of 10% per hour Heavy Gaming 'CoD: mobile', which is quite good I guess) but when the phone is idle, the battery drains quite fast about 2% per hour and the battery discharges about 10-15% over the night.
Losing 10-15% battery is not normal for a phone at all, also 10% of a 6000mAh battery is quite huge.
This problem persists. Any help is welcome!
EDIT :
I have uploaded the battery usage stats screenshots on google drive, check the link. I turn off WiFi and clear recent apps before going to bed but still, the battery drains heavily 15% over 6-7 hours.
CAN'T share the link because xda won't allow posting URLs here as I'm new to XDA forum

Update on my battery drain, found the SD card malfunctioned and removal of the SD card fixed the issue.

jpaulpra said:
Update on my battery drain, found the SD card malfunctioned and removal of the SD card fixed the issue.
Click to expand...
Click to collapse
How did you figure out the root cause? I am also facing battery drain by Android system after the recent security update.