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
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+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
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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.
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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
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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.
I don't understand, the meaning of ambient display is to turn on screen for like, 2 seconds after we receive important notification and that happens maybe 3-4 times in a day, thats 8 seconds of having screen on, and why does that drain battery? ..
Because we have LED and not amoled displays.
jayRokk said:
Because we have LED and not amoled displays.
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But still if not all pixels turn off on black screen, its still only 2 seconds of screen being on...
I'm sure there is also some process that's always running that contributes to the drain. If you look at the specs for the N6, its standby time is cut by something like 80hrs when you have ambient display turned on, and it has an AMOLED display. So there has to be something more to it than just the display.
I believe the battery drain comes from a core staying awake waiting for input (notification).
2 seconds of screen on uses more battery than 0 seconds of screen on.
Also its "listening" for "pick up" events.
rootSU said:
2 seconds of screen on uses more battery than 0 seconds of screen on.
Also its "listening" for "pick up" events.
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Is lollipop ambient display different than one in paranoid Android? They have same thing but I never heard anyone from saying it drains battery
No idea. But anything that turns on display will use battery. Kinda obvious really.
For a while now my shield seems like it's always draining power excessively, even while shut/sleep.
When I put it on the charger(while on sleep) it often is very warm and the fan is on.
When I take it off the charger the battery icon often shows it's still charging.
Even when I restart the shield it doesn't seem to fix the problem, and continues to run warm. I used to be able to leave the shield on sleep mode for many days with very little power loss, now it seems to be dead in under a day.
*note it does seem to function normally with typical amounts of power from time to time, it can function as tho there is no excessive drain on it.
I'm not rooted.
I'm still on 4.3, and refused to update because at the time the update caused slowdowns/bugs in many of the console emulators. I'm tempted to update or start over from factory settings to see if it will help. Thoughts? Are there still drawbacks form updating to the latest version of Android?
I have one app I am suspicious of possibly being the cause of the massive power drain and heat up, "MapFactor: GPS Navigation". I am positive that when I run this app it sucks down the battery power like crazy, and 99% of the time it wont close properly with out going into the app settings and forcing it to shut down... The weird thing is, is like I said; the power drain issue is often still there even after restarting the shield and not loading up any apps.
Thoughts, Advice? Please and thank you.
Look at your battery stats
Hello
My S6 has problems:
Battery is draining very fast on standby , phone gets hot.
Softkeys sometimes light up and work, sometimes not.
And the touch sensitivity is bit low and there's a lag, so if I want to swipe, I should it it slowly or the phone doesn't register it.
Also screen stays on.
Any chance that changing the battery might solve these problems?
dqiria said:
Hello
My S6 has problems:
Battery is draining very fast on standby , phone gets hot.
Softkeys sometimes light up and work, sometimes not.
And the touch sensitivity is bit low and there's a lag, so if I want to swipe, I should it it slowly or the phone doesn't register it.
Also screen stays on.
Any chance that changing the battery might solve these problems?
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Click to collapse
Are the capacitive buttons spamming away?
Is it just me or does the Ambient Display on this device have a pretty high battery drain?
AccuBattery reports 14% in 9 hours screen off drain with 91% of the time being deep sleep.
I'm coming from an S8 where the AOD drain is barely noticeable.
Is this normal or am I missing something?
Velcorn said:
Is it just me or does the Ambient Display on this device have a pretty high battery drain?
AccuBattery reports 14% in 9 hours screen off drain with 91% of the time being deep sleep.
I'm coming from an S8 where the AOD drain is barely noticeable.
Is this normal or am I missing something?
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No idea i never have it on. Just turn it off.
Unstroofy said:
No idea i never have it on. Just turn it off.
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I just did and will see if that gets rid of the drain. Was just one of the minor reasons to get the Pixel over the Zenfone 6 ^^'
Velcorn said:
I just did and will see if that gets rid of the drain. Was just one of the minor reasons to get the Pixel over the Zenfone 6 ^^'
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So how did it go?
Sent from my Pixel 3a using Tapatalk
If you turn the phone face down (or otherwise block the proximity sensor) the screen completely turns off. So it is pretty easy to control when the always on screen is on or off. I turn my phone face down overnight and usually see a 2% reduction in battery over 7-8 hours.
I think with the always on screen on, I see a drop of between 1-1.5% per hour on average. But my phone is also having more notifications and other activity that time of day too which keeps it from deep sleep.
tl/dr - you can leave the "always on screen" setting on all the time. If you don't need the screen and want to save battery, simply turn your phone face down and the screen shuts down completely after about 10 seconds.
Thanks for the input, everyone, I now settled with leaving it on and turning it face down over night or whenever I don't need it.
It just seems that this phone has a significantly higher standby drain than my former S8 in general. Already checking for some wakelocks or other causes for drains with BBS, but maybe it's just normal and I'm being paranoid. It's not an abnormally high drain either, guess I'm just spoiled ^^'
You don't have to put your phone face down. You just need to disable the ambient display and wake it up temporarily by double-tapping on the screen of lifting the phone, whenever you want to check the time or notifications.
Velcorn said:
I just did and will see if that gets rid of the drain. Was just one of the minor reasons to get the Pixel over the Zenfone 6 ^^'
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I turned off ambient display also and switched over to double tap the screen to see my notifications without pressing the power button or unlocking.