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I have had my tablet off the charger now for 1 day 14 hours and I have 61% battery left. I have used it periodically to read the paper and check email over the course of the least two days.
My settings include auto brightness, screen sleep after 10 minutes and wifi always on. I let the tab go to sleep on its own.. I do not force it with the power button. I revive it with the volume control.
I am running for months now tnt 4.1.0
I am not sure why there are complaints about a true "standby" or sleep state as I can not expect any better always on battery life than this.
insight3fl said:
I have had my tablet off the charger now for 1 day 14 hours and I have 61% battery left. I have used it periodically to read the paper and check email over the course of the least two days.
My settings include auto brightness, screen sleep after 10 minutes and wifi always on. I let the tab go to sleep on its own.. I do not force it with the power button. I revive it with the volume control.
I am running for months now tnt 4.1.0
I am not sure why there are complaints about a true "standby" or sleep state as I can not expect any better always on battery life than this.
Click to expand...
Click to collapse
There are two levels of sleep. Screen off but CPU on and wifi on will run about 3% per hour. If you run the stock rom and let it go into deep sleep it will halt the CPU and shut down wifi after 2 minuets or so, and in that state it should burn about 1% per hour. It wont do alarms or reminders or check emails when in deep sleep.
So you can go about 33 hours without deep sleep. Or pretty much one day of use with alarms/alerts/push email. Or 3 days and off and on use with deep sleep. I prefer the one without deep sleep. I just charge it every night. I agree though, in with case it seems fine to me.
There are so many threads on this issue... it'd be good for the mods to combine them or lock/link to one master? Much like the 96% issue... both need dev attention and less General threads!
I have raised a bug with CM7 on the idle power problem. Idle power usage is huge compared to other devices. Hopefully this can be fixed...
http://code.google.com/p/cyanogenmod/issues/detail?id=3714
galapogos01 said:
There are so many threads on this issue... it'd be good for the mods to combine them or lock/link to one master? Much like the 96% issue... both need dev attention and less General threads!
I have raised a bug with CM7 on the idle power problem. Idle power usage is huge compared to other devices. Hopefully this can be fixed...
http://code.google.com/p/cyanogenmod/issues/detail?id=3714
Click to expand...
Click to collapse
"Currentwidget shows >300ma power usage at idle" from your report... do you happen to have the OC pegged high in SetCPU? Because wifi on, bt off, idle/screen on should be in the low 200s (214mhz clock scale) and wifi on, bt off, idle/screen off should come in at 100-120.
This isn't a "dev" issue - it's a hardware design issue. The gtab isn't designed for long standby, no amount of dev attention will fix that. 100ma seems to be the floor (with wifi on.)
schettj said:
"Currentwidget shows >300ma power usage at idle" from your report... do you happen to have the OC pegged high in SetCPU? Because wifi on, bt off, idle/screen on should be in the low 200s (214mhz clock scale) and wifi on, bt off, idle/screen off should come in at 100-120.
This isn't a "dev" issue - it's a hardware design issue. The gtab isn't designed for long standby, no amount of dev attention will fix that. 100ma seems to be the floor (with wifi on.)
Click to expand...
Click to collapse
I agree, I can go about 30 hours before I have to charge it again. I do let it sleep but keep the wifi active as it has issues otherwise. It is a hardware limitation on the device not a dev issue.
schettj said:
"Currentwidget shows >300ma power usage at idle" from your report... do you happen to have the OC pegged high in SetCPU? Because wifi on, bt off, idle/screen on should be in the low 200s (214mhz clock scale) and wifi on, bt off, idle/screen off should come in at 100-120.
This isn't a "dev" issue - it's a hardware design issue. The gtab isn't designed for long standby, no amount of dev attention will fix that. 100ma seems to be the floor (with wifi on.)
Click to expand...
Click to collapse
This was with wifi on, bt off, screen on auto brightness, cpu pegged to 214mhz with screen off, pershoot kernel.
I disagree that it's not a developer issue. Based on my experience with Android on the HD2, a lot of the battery usage issues eventually came down to kernel optimisation -- incorrect GPIOs causing devices/sensors to remain on when the kernel thought they were off, high bt idle drain, incorrect voltages against cpu speeds in the scaling tables, backlight driver loops, etc. I do not think this is related to the device itself.
I can get ~48 hours standby, but this thing should be measuring standby in weeks, not days. My HD2 can get >2 days standby, probably 4 or 5 in airplane mode. It draws 3ma!
Cheers,
Jason
galapogos01 said:
It draws 3ma!
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Click to collapse
Right - that would be a firmware deep sleep, where the firmware halts the cpu, and powers down hardware.
Note that when cpu halt ends the control of the OS right there.
The gtab's "deep sleep" isn't a whole lot better than "screen off, cpu lowest speed." No amount of kernel work is going to fix that.
Running VEGAN Ginger Edition, I get a full 8 hour work days use at the cost of about 20% battery life, probably about 6 hours of that is idling, the other two are browsing the web / goofing off playing Meteors or something.
Looks like ASUS has some work to do with the Prime dock, just like they had with the original Transformer. Short story: my Prime does not enter deep sleep when docked (with the setting on to disable waking via keyboard, a.k.a., MobileDock battery saving mode is checked).
When not docked, I can get as low as .25%/hour battery use, and CPU Spy shows the unit mostly in deep sleep. When docked, I get between 1.5%-2%/hour battery use, and CPU Spy shows zero time in deep sleep.
Anybody getting a different result? While standby is better with the Prime+dock than my original Transformer, it still doesn't seem to be where it should be.
wynand32 said:
Looks like ASUS has some work to do with the Prime dock, just like they had with the original Transformer. Short story: my Prime does not enter deep sleep when docked (with the setting on to disable waking via keyboard).
When not docked, I can get as low as .25%/hour battery use, and CPU Spy shows the unit mostly in deep sleep. When docked, I get between 1.5%-2%/hour battery use, and CPU Spy shows zero time in deep sleep.
Anybody getting a different result? While standby is better with the Prime+dock than my original Transformer, it still doesn't seem to be where it should be.
Click to expand...
Click to collapse
Under Asus Customized settings did you check MobileDock Battery saving mode? That might be the cause.
Edit: Nvm didnt get your first sentence till i read it again, if thats not the case then idk... sorry
reNeglect said:
Under Asus Customized settings did you check MobileDock Battery saving mode? That might be the cause.
Click to expand...
Click to collapse
Yes, a.k.a., "the setting to disable waking via keyboard." And, I can verify that the keyboard does NOT wake the device.
Curious
This might explain my problem too. I plugged my prime into the dock (after ensuring the wake up) and my battery was drained much faster than expected. Ill have to check my CPU usage when I get home.
my dock is waiting on my doorstep...i'll test tonight.
Oh, and how bout those battery stats?
i can confirm i get the same results.
also one setting that needs to be de-coupled is the keep wifi activated while plugged in.
if you turn that on wifi will never shut off when docked, the ATP sees being docked the same as being "plugged in" and keeps wifi enabled forever.
copland007 said:
i can confirm i get the same results.
also one setting that needs to be de-coupled is the keep wifi activated while plugged in.
if you turn that on wifi will never shut off when docked, the ATP sees being docked the same as being "plugged in" and keeps wifi enabled forever.
Click to expand...
Click to collapse
I wonder if that alone is enough to account for the extra battery drain? Guess op may have already had that off though.
Where are you all getting your docks from? I want one, but cant find it anywhere
BongoBong said:
I wonder if that alone is enough to account for the extra battery drain? Guess op may have already had that off though.
Click to expand...
Click to collapse
I have wifi at the default setting (which is to keep wifi on during sleep) because I've been getting such good standby performance. Apparently wifi being on does NOT stop the device from entering deep sleep.
Incidentally, I do wonder what "deep sleep" means on the Prime given the companion core. I know that I still receive email and other notifications while on standby and deep sleep, so maybe the companion core is still running even when Android considers the device to be in its "deep sleep" mode.
Kind of busy and need to think more about that, actually...
My dock is down to 29% with most of the day of non use.
How do you turn off the wifi when docked but in sleep? Can't seem to find the setting for that.
Also, another newbie question, does the lock key (upper right key) on the dock serve the same function as the power key on the tablet?
Sent from my Transformer Prime TF201 using xda premium
i can confirm this now. I'm down to 89% after 6 hours of basically idle, wifi set to always on. Without the dock i would have been in the mid 90's, all things being equal.
MaximusDog said:
How do you turn off the wifi when docked but in sleep? Can't seem to find the setting for that.
Click to expand...
Click to collapse
there isn't a setting, my earlier comment was directed towards asus, sorry. they need to provide us an option for that. i have gotten into the habit of just shutting wifi off when it's docked and i'm not using it :/
Is anyone else also not receiving notifications when you're docked and closed? If i leave it open (but locked) i seem to still get notifications.
tdrussell said:
Is anyone else also not receiving notifications when you're docked and closed? If i leave it open (but locked) i seem to still get notifications.
Click to expand...
Click to collapse
I can hear my e-mail notifications when it's docked and closed.
tdrussell said:
Is anyone else also not receiving notifications when you're docked and closed? If i leave it open (but locked) i seem to still get notifications.
Click to expand...
Click to collapse
I hear notifications as well when docked and closed. Woke up my wife once cause I forgot to silence the thing .
jyan_osu said:
I hear notifications as well when docked and closed. Woke up my wife once cause I forgot to silence the thing .
Click to expand...
Click to collapse
well i discovered for some reason the speaker had stopped outputting any sound. a reboot fixed it.
I'm reforming my opinion on the battery issue though...the dock inherently uses some battery, and at the same time CPU Spy seems to think deep sleep is behaving normally. I'm guessing with normal usage i will be getting an extra 4 hours or so with the dock...definitely an improvement, but the end result is a little difficult to predict when you're watching those batteries drain while one is recharging the other...
i think as long as you're getting an acceptable (ie, within advertised range) extension of battery life from the dock, i'm not going to look at it too closely.
If i didn't see any time spent in deep sleep, then i might be more concerned.
TF201 | XDA Premium
tdrussell said:
well i discovered for some reason the speaker had stopped outputting any sound. a reboot fixed it.
I'm reforming my opinion on the battery issue though...the dock inherently uses some battery, and at the same time CPU Spy seems to think deep sleep is behaving normally. I'm guessing with normal usage i will be getting an extra 4 hours or so with the dock...definitely an improvement, but the end result is a little difficult to predict when you're watching those batteries drain while one is recharging the other...
i think as long as you're getting an acceptable (ie, within advertised range) extension of battery life from the dock, i'm not going to look at it too closely.
If i didn't see any time spent in deep sleep, then i might be more concerned.
TF201 | XDA Premium
Click to expand...
Click to collapse
Well, hmm... Seems like since ICS mine is now going into deep sleep as well. Hadn't checked, but mine was docked but closed (and asleep) almost all day today. CPU Spy shows it having been in deep sleep 73% of the time, which certainly seems right.
I'm still getting about 1.5%/hour on standby when docked, but then again it's keeping updated with emails, Twitter, calendar events, etc., with audible notifications. So, that's actually pretty good, all considered.
I unplugged at 100% dock and tablet power this morning a little bit before 7. wi-fi has been off all day and i haven't used it at all. at 6pm tonight, 11 hours after unplugging, the dock is at 100% and tablet at 99%.
RJM77 said:
I unplugged at 100% dock and tablet power this morning a little bit before 7. wi-fi has been off all day and i haven't used it at all. at 6pm tonight, 11 hours after unplugging, the dock is at 100% and tablet at 99%.
Click to expand...
Click to collapse
That thing was hibernating like a grizzly bear.
TF201 | XDA Premium
Don't mean to steal the thread but where are you getting the docks from?
Maybe someone can give some input about the following:
At work we have an iPad 1 and I've been monitoring it's battry drain in standby last week:
Full 6 days standby, with Wifi ON and not used in meantime:
battery went from 58% to 54%.
With my prime I get 2-4% during 1 night!
And that's even with Wifi turned OFF and docked (auto airplane mode app)
The dock looses about 1-2% each night
Why does the iPad have such crazy battery life in standby mode + wifi on? Is it all about good written software (iOS, drivers and apps)? Or is it hardware related? Or both?
In other words: will it ever be possible for an Android tablet to get such great standby time when ICS get more mature? Or is it already possible on other devices and lays the problem within hardware/drivers from Asus?
I really dislike having to use auto airplane mode, because I sometimes have to wait 5-10 second for wifi to get connected and ready. But with wifi turned on, the standby drain is even greater.
This didn't need its own thread. Should have posted it here.
http://forum.xda-developers.com/showthread.php?t=1534039
you might have some wakelocks
Sent from my sgs2 running cm9 using xda app
use better batter stats to see what's causing your issue. I get great standby battery life + wifi on. plus 2% drain isn't bad at all in one night. my prime can easily get over 20hrs. on a charge with off and on usage. I get about 10hrs. or so with moderate to heavy usage. about 9hrs. real heavy usage. battery life dependent on several factors. as far as standby goes, like the other poster said, you are experiencing system or partial wakelocks. cutting down the frequency of updates can help or solve this. everytime you asleep and device goes off from a notification, its woke up out of sleep. then eventually goes back to sleep. this is a repeated cycle which causes extra battery drain during sleep. because device never gets a chance to sleep long because its always being disturbed by notifications constantly going off.
demandarin said:
plus 2% drain isn't bad at all in one night.
Click to expand...
Click to collapse
I know that my 2% idle drain is quite good regarding to current prime and firmware/drivers, but how can a 2% drain in 8-10 hours be good when the iPad drains only 4% in 6 days (that's 144 hours!!) ?
The difference is HUGE, so that's why I wondered if it's bad coding in Android, drivers, Apps or maybe the used hardware that consumes just quite a lot more than iPad. Is 2% also common with other andoid tablets?
And if it's really software related: can and will it ever be fixed or at least reduced?
Edit:
When in standby my prime is always in "deep sleep" and I don't see any interuptions. But I sure will try better battery app.
Then again: this is all with wifi off and iPad had default settings with wifi on and still consumes way less
My ipad 1 have a great standby time too, comparing it to my Prime, My iphone 3gs has great standby time to comparing to my Galaxy Note. BUT it is too bad I didn't buy those stuff to be there looking pretty, I bought them to be able to USE them. If my stuff stays on standby a lot of time, seems like I really don't need it.
On my home network, I get about .3%/hour battery use on standby. I have wifi configured to stay on when the screen is off, and I have a number of apps that synchronize in the background (gReader, TweetCaster, email (X2 accounts), Gmail, a tasks app, calendar, etc.).
The worst standby that I get is on my work network, where I get between .5%/hour and 1%/hour. I believe it's something to do with the router at work, which also causes problems with my HP Envy 14 notebook. Note that the difference in standby life is absolutely consistent and quantifiable.
At .3%/hour, my Prime would last for 333 hours. At .5%/hour, my Prime would last for 200 hours. Worst case scenario is that at 1%/hour, my Prime would last for 100 hours.
Quite honestly, I'll take a Prime that lasts between 100 and 333 hours on standby while running all sorts of useful background tasks over an iPad that last for however long while running few if any background tasks. My Prime is more USEFUL to me that way.
And, even if the iPad runs the same sorts of background tasks that I've described here, 100 to 333 hours of standby is perfectly fine. Is it as good as an iPad? Clearly, not, in this case. But even so, it's also a distinction without much meaning.
why is it that all these people make ****ing mac/ios based threads?
serious if you don't like what you have bought... G T F O
p.s. stop the trolls ok? ipad ****ing sucks and what you claim is total bull**** anyway. 4% in 6days with wifi on dreams are there to be made.
fact: use that ****ty ipad turn on wifi and use it for 6-8 hours.
OMFG WHAT JUST HAPPEND? oh gaws....
now try with the prime
profit.
<edit>the topic of your thread... serious... your talking about 2 devices not even the actual software.. dip****</edit>
/end rage
Even if your using really clear, hard to see, mono filament, trolling is still trolling.
pvdwaal said:
Maybe someone can give some input about the following:
At work we have an iPad 1 and I've been monitoring it's battry drain in standby last week:
Full 6 days standby, with Wifi ON and not used in meantime:
battery went from 58% to 54%.
With my prime I get 2-4% during 1 night!
And that's even with Wifi turned OFF and docked (auto airplane mode app)
The dock looses about 1-2% each night
Why does the iPad have such crazy battery life in standby mode + wifi on? Is it all about good written software (iOS, drivers and apps)? Or is it hardware related? Or both?
In other words: will it ever be possible for an Android tablet to get such great standby time when ICS get more mature? Or is it already possible on other devices and lays the problem within hardware/drivers from Asus?
I really dislike having to use auto airplane mode, because I sometimes have to wait 5-10 second for wifi to get connected and ready. But with wifi turned on, the standby drain is even greater.
Click to expand...
Click to collapse
Its not an issue with Android because I can get 2 months on standby with my Nook Color running CM7. The tf201's standby time is likely due to things on the kernel level rather than Android.
dalingrin said:
Its not an issue with Android because I can get 2 months on standby with my Nook Color running CM7. The tf201's standby time is likely due to things on the kernel level rather than Android.
Click to expand...
Click to collapse
I was just going to post how crazy my nook color is with power consumption, but thats not the same level of processor that the Prime has.
Not sure if this has already been said? But iOS battery% behave very different than Android battery%. I noticed that when i got my first android device after using an ipod touch for a while. (that was a while ago so maybe things changed with iOS 5x never used that)
The iOS% will kinda adapt to your usage. If you play a 3d game on high brightness the battery% will go down pretty fast, but if you go back to standby they go up again. After some hour of gaming you can be down to 60% but after another one in standby it could go up to 80% again...
In general it feels to me like they lie "a bit". It could very well be that if you used said ipad it would drop to like 30% after 5mins of using. I found the way it behaves very annoying. But as I said that was on my ipod touch, maybe the ipad is different.
Android battery% are much more "direct" but also more accurate in my opinion. With my ipod I never knew how much juice is really left. With my phone or tablet now i know exactly what i can do until it shuts down.
That being said, i'm pretty sure there's still alot of room for improvement with the prime. The software is just an early version basically - all they did up to now is make sure everything works more or less and that its stable for most people. I'm confident the next patch will make things alot better in many aspects.
And i wonder how my prime will be like in half a year with a perfect custom rom
Ready2Mosh said:
I was just going to post how crazy my nook color is with power consumption, but thats not the same level of processor that the Prime has.
Click to expand...
Click to collapse
That's true, but isn't Teg3 and the new Pad line supposed to be fairly efficient?
With the majority of my time spent at the lowest clocks, the drain I get does seem kind of ridiculous. That opinion stated, here's another: the battery-life on the Prime is still fantastic. I can almost push it an entire work-week on one charge so long as I'm not trying to game or anything, that's a pretty stout stand-by for most electronics. The OG iPad just happens to be so underwhelmingly powerful that its standby is much greater.
I personally believe that to coax away the random locks/reboots they raised the voltage values so that we're drawing unneeded power; however, I for some reason have not ventured into my Prime to see what they have the values set to so I have nothing to back this up. Just a guess.
Ready2Mosh said:
I was just going to post how crazy my nook color is with power consumption, but thats not the same level of processor that the Prime has.
Click to expand...
Click to collapse
If its truly in standby/sleep then the processor should be essentially off. In the case of the Nook Color the primary CPU can power off entirely.
The issue is the dock, when mines not docked it can idle for over 60 days (according to battery widget app) and when it's docked I lose over 10% a night or more
d1ez3 said:
The issue is the dock, when mines not docked it can idle for over 60 days (according to battery widget app) and when it's docked I lose over 10% a night or more
Click to expand...
Click to collapse
The dock is not the issue, neither is Android and neither is the processor. It comes down to what apps you're running, live wallpapers, radios, etc. Or just good ol' fashioned faulty units...or poorly built ROMs/kernels.
I'm running stock, rooted .15 with performance mode on always. When I wake up in the morning, I unplug my docked Prime before I go to work. When I get home 10 hours later...dock is at 100% and Prime at 99%. That's with dock connected, performance mode, bluetooth wifi and GPS all ON and no "battery saving" apps of any kind running. And that's been consistent for the last two weeks. I DO, however, kill all apps in the recent apps menu. I don't force stop them or anything, just open up the recent menu and swipe them away.
The only time I've gotten battery drain was when I left an N64 emu, an SNES emu, Sixaxis and two other games running in the background. That ate about 10% battery or so in 10 hours.
I left my prime unplugged for 8 hours, wifi on, and it was at 99%. So I don't know what the OP is talking about.
Additionally, iPad doesn't have a good clue as to what real multi-tasking is like, and therefore doesn't update as much because it doesn't have services running in the background.
Android does have services running in the background. Give and take. You want your data always refreshed? What intervals? etc.
That's all configurable, so you really decide how long your battery lasts.
Advice to OP: Read more, get smarter, post less dumb crap.
Hi Everyone,
I've noticed a few other posters have indicated that wifi makes up an unusually large amount of their Prime's battery drain. Personally I'm seeing anywhere between 60-90% of battery usage being attributed to Wifi. Do we know if there are any commonalities in these cases? I'm on a fully stock .21 build with a C3 series Prime, and my battery life has in general not been amazing (6-8 hours off-dock MAX). Anyone else seeing similar outcomes?
Yep, there are quite a few threads about this already
The wifi power consumption is absolute insane. With wifi off the battery last as advertised... but with bt or wifi..... well...
Wish there was a way to select how much power we want to assign to the wifi as i have seen in another phones.
Im having similar issues, on and off.
Recently, Ive been messing around with new roms and and kernels and found out tinkering here and there that when the tablet is put to sleep, its supposed to go into deep sleep, this being what makes the tab super battery efficient when its sleeping
A quick test to see if its going to deep sleep is to download Cpu Spy free from the market, start it, go to options (top right) reset timers to get a fresh reading, put tab to sleep for 10 -20 secs, then turn on, go back to Cpu Spy, options Refresh. You should have a listing for deep sleep, which will tell you that deep sleep is at least working.
Every now and again i would test this, found out that sometimes deep sleep would not initiate, normally its ok straight after reboot, but after ive been using the tab (mind you, not always), and test deep sleep, i find that the tab would stay on a low clock speed rather then deep sleep, well 'low' being a relative term, i mean at some points, the tab wouldnt go below 475mhz even when idle.
When idle, ideally, the tabs if not doing anything intensive in the background, SHOULD go to the lowest CPU state, 102mhz, i think there is something, either system related or app related, thats forcing our primes to run at higher clock speeds and in some cases its not letting our primes go into deep sleep
I think using cpu spy, is a good tool to figure out what that might be, restart your tab, before doing anything, establish that your tab can go to deep sleep while sleeping and uses the lower cpu speeds when idle, and then test it everynow and again, if the issues come back, and you see a connection between a certain app or certain setting you've been using let someone know, chances are, it could be our culprit, in this case the best way to fix something is to find out what needs fixing.
I have already checked forDeepSleep issues but I have none, my tablet sleeps like it should and when turned off use very little energy... but man once it starts transfering data the battery goes to hell hehe (Music streaming, WebSurfing. anything that uses internet).
The battery used by WiFi is more evident when using the Prime in Eco Mode with the light turned all the way down, 80-90% is from WiFi :/
Changing the Policy to disconnect while the screen turns off just does noting for me, since I like I said before, it only uses so much power when transfering any kind of data.
Zephyrot said:
I have already checked forDeepSleep issues but I have none, my tablet sleeps like it should and when turned off use very little energy... but man once it starts transfering data the battery goes to hell hehe (Music streaming, WebSurfing. anything that uses internet).
The battery used by WiFi is more evident when using the Prime in Eco Mode with the light turned all the way down, 80-90% is from WiFi :/
Changing the Policy to disconnect while the screen turns off just does noting for me, since I like I said before, it only uses so much power when transfering any kind of data.
Click to expand...
Click to collapse
Thanks for the info.
Just to get our ducks in order, do you test with CPU Spy after you have messed around with the tab, without closing or shutting down anything?
Most of the time, mine works as it should when 102mhz and deep sleep is concerned, but on occasion after playing around with it, i find that deep sleep wont initiate and the lowest clock speed would be 475mhz 370mhz, its as if somethings hanging up the system, not allowing it to initiate lower more battery friendly settings
At the time i was using virtuous prime with motleys kernel with the script specific for virtuous prime, that combination was not allowing lower clock speeds at all regardless what i closed or even a reboot, im now in the process of reinstalling virtuous prime with stock kernel as vanilla as i can make it, as a base rom with all my apps ready, and it seems to be doing what its suppose to be doing, CPU wise.
Gonna get the rom just the way i like it and nand backup, before i reinstall motleys kernel again to see if it improves the battery with its under volt features, this time im gonna wipe davlak and cache see if that makes a difference
Im constantly using eco mode, so thanks for that observation, will definitely keep that in mind when im testing
Sent from my Transformer Prime TF201 using XDA
Yep, what I do almost every day is reset CPU Spy stats when disconnecting my tab from the power so I can have an accurate read of the whole day.
Deep sleep working, CPU scales down to 102MHz like it should.
WiFi is like a black hole of energy when transferring data hehe, wifi on with only chat client and my email and Widgets synced uses almost no power... downloading anything, web browsing, music streaming eats the battery
My tablet also seems to go into deep sleep just fine (at least a few small tests indicate that it does). I'm having the same results as Zephyrot though, if I'm doing something that uses the data connection much it just hammers the battery. It's odd that I can play GTA III with settings turned all the way up for 3 hours and have it use less power than lightly browsing the web for an hour. Do you guys have C3 or C2 models ? I'm curious if the changes they made might have some influence on this problem.
superhyper said:
My tablet also seems to go into deep sleep just fine (at least a few small tests indicate that it does). I'm having the same results as Zephyrot though, if I'm doing something that uses the data connection much it just hammers the battery. It's odd that I can play GTA III with settings turned all the way up for 3 hours and have it use less power than lightly browsing the web for an hour. Do you guys have C3 or C2 models ? I'm curious if the changes they made might have some influence on this problem.
Click to expand...
Click to collapse
For reference im on C2, but im in the phase of testing some roms and kernels(recently unlocked to try Cornerstone Rom) so my testing results are gonna be all over the place until i find the best performance/battery rom and kernel, untill then im gonna be doing basic short term tests, untill i settle down, so as far as my personal findings are concerned, take em with a grain of salt
superhyper said:
My tablet also seems to go into deep sleep just fine (at least a few small tests indicate that it does). I'm having the same results as Zephyrot though, if I'm doing something that uses the data connection much it just hammers the battery. It's odd that I can play GTA III with settings turned all the way up for 3 hours and have it use less power than lightly browsing the web for an hour. Do you guys have C3 or C2 models ? I'm curious if the changes they made might have some influence on this problem.
Click to expand...
Click to collapse
Exactly my experience, Asphalt 6HD uses less battery than wifi!
C20 Prime here.
Since .21 update my battery life is crap! I can have fully charged tablet and dock, leave it overnight and next morning dock is completely drained and tablet has lost 5-10%. I thought it was wifi issue at first, but have tried several times in airplane mode and still have same result. After reading this, I will try cpuspy and see if it is a deep sleep issue. I cannot tell you how much I regret "upgrading" to .21, which I did accidentally and lost root in the process. Man, I wish this device had a do-over button!
I wasnt sure which sub-forum to post this in but...
I was wondering if anyone else notices that the lockscreen is sometimes very slow to pop up when you push the power button (coming out of a deep sleep/idle state)
I used to experience this problem with my S2 and even my Galaxy Nexus but I find its pretty bad sometimes on the S3 as well...
Does anyone have any clue/solution as to why this happens?
I can guess that the phone is in a deep sleep/idle state with the CPU clocked very low, and it needs some time to ramp up once the power button "awakes" the phone - but if you've ever pushed the button on an iphone or OneX you'll notice the lockscreen pops up right away ....so what gives?
We have arguably the fastest CPU/GPU combination in a phone right now and sometimes these small things bug me a bit...
also goes for stuff in the dialer like answering a call or ending a call - you'll notice a slight delay/lag.
I'm almost 100% sure that's a samsung/TWZ/software issue, but ya, just curious on how no one else noticed this since the S1 and S2.
Any feedback or tips would be appreciated
I've tried both stock LF2 and am now on WanamLite v1.3 now , so ive already gotten a feel for stock and custom rom/kernels , all of which are the same in terms of experiencing that lockscreen wake delay
have seen this issue on my s3. restart of the phone had cleared the issue.
Same situation here..
HI guys, did you find any solution?
My girlfriend's GS3 lags sometimes when the power button is pressed. The lockscreen doesn't appear for a few seconds. Have tried many restarts but it still occurs sometimes.
Thanks
It's deep sleep mode will happen on Samsung roms
Changing to an aosp rom will fix it but deep sleep does preserve a lot of battery life
Sent from my GT-I9300 using xda app-developers app
Is there any way to turn the deep sleep off? Heck, it happens even if i try to unlock the screen a few seconds after locking it.
It is not occuring on my gs3..
same problem here
That's deep sleep, preserving you tons and tons of battery life.
When you open the phone and it's in deep sleep, it will take time to actually fire-up the CPU/GPU back to a high clock.
I don't see why people hate this, even laptops 'sleep' and re-open in seconds, same thing here and for the same reason, saving battery.
Skander1998 said:
That's deep sleep, preserving you tons and tons of battery life.
When you open the phone and it's in deep sleep, it will take time to actually fire-up the CPU/GPU back to a high clock.
I don't see why people hate this, even laptops 'sleep' and re-open in seconds, same thing here and for the same reason, saving battery.
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this exactly, nothing one can do about it. Sames is true for every microprocessors ive ever used in embedded systems. It takes time for every system to come out of deep sleep, yet they really do save *tons* of battery life.
If deep sleep were turned off everybody and their dog would talk about miserable battery life on the s3... on the order of about 8-10 hrs while not using it at all i would guess
That's deep sleep, preserving you tons and tons of battery life.
When you open the phone and it's in deep sleep, it will take time to actually fire-up the CPU/GPU back to a high clock.
I don't see why people hate this, even laptops 'sleep' and re-open in seconds, same thing here and for the same reason, saving battery.
this exactly, nothing one can do about it. Sames is true for every microprocessors ive ever used in embedded systems. It takes time for every system to come out of deep sleep, yet they really do save *tons* of battery life.
If deep sleep were turned off everybody and their dog would talk about miserable battery life on the s3... on the order of about 8-10 hrs while not using it at all i would guess
Click to expand...
Click to collapse
Aaah, yes, and it is a well known fact that people with common sense use their laptop to check the time, or send a quick message.
I mean, really, who need a PHONE that reacts quickly??!
Anyways, those stupid apple-people seems to have bothered to make a quick reacting phone, but everyone knows they are just stupids!
minekeeper said:
Aaah, yes, and it is a well known fact that people with common sense use their laptop to check the time, or send a quick message.
I mean, really, who need a PHONE that reacts quickly??!
Anyways, those stupid apple-people seems to have bothered to make a quick reacting phone, but everyone knows they are just stupids!
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Click to collapse
Why rant at a three month old thread?