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!
Click to expand...
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.
Related
Is there anyway to put the Touchpad to sleep?
The battery is drain 5 to 10% just sitting there with screen shut.
Thanks.
You aren't giving a whole lot of context with your post. 5-10% per....? Hour? Day? Minute?
Mine came to work with me and wasn't plugged in. 10 hours later when I got home I was still at 85% battery. Not fantastic, but certainly tolerable.
Sent from my T7575 using XDA Windows Phone 7 App
Sorry. 5 to 10% per hour.
So is there a way to put it to sleep? I fully charged it the other day, was gone for two days and it completely drained when I checked just now. iPad is at 70% since I last used it 3 weeks ago.
thecalip said:
Sorry. 5 to 10% per hour.
Click to expand...
Click to collapse
I would say that's definitely not normal. Did you make any changes to govnah? I'm using the Warthog kernel at 1.7ghz and left my TP in my bag all day at work. Total of 14 hours away from a charger and was still at 95% battery this evening.
Are you near WiFi where it's checking email or other apps that check for updates?
5 - 10% per hour is not normal. I've been using my touchpad since I came home from work so approximately 6 hours. It was on the charger, turned off before I came home. I have applied the kill logging patches, and all the common speed up patches, and am running the latest F4 Phantom kernel that was released today with an OC to 1.728 GHz. My WiFi is always on but my BT is not. My battery dropped 14% over that time period, or just over 2% an hour (with irregular use, not just sitting there).
Have you done all the patches in Preware and what not?
this is exactly why I wished we had a program that could read battery consumption
i have applied the common patches in preware but not overclocked.
my TP is now lying the 2nd day on my desktop with no app running and in standby. just looked and it shows still 100% (that might not be true, will be smth. >90% imho).
the problem is: what is running on your touchpad? when you have twitter/facebook and stuff running its like pn the smartphones draining your battery.
and when you use it all time the touchscreen needs alot battery, too.
have you tried changing the wifi sleep settings in the WiFi settings panel?
there's two options for it:
keeping it on all the time (even when the screen is off)
turn it off when the screen sleeps
I've found that setting it to the latter improves battery life
could be the solution to your woes,
phobos512 said:
5 - 10% per hour is not normal. I've been using my touchpad since I came home from work so approximately 6 hours. It was on the charger, turned off before I came home. I have applied the kill logging patches, and all the common speed up patches, and am running the latest F4 Phantom kernel that was released today with an OC to 1.728 GHz. My WiFi is always on but my BT is not. My battery dropped 14% over that time period, or just over 2% an hour (with irregular use, not just sitting there).
Have you done all the patches in Preware and what not?
Click to expand...
Click to collapse
wow that sounds amazing! i'm a very new webOS user (since yesterday), would you mind sharing all the patches and tell me exactly what and how to do everything that you did to get such great results?
much appreciated thanks!
erick161 said:
this is exactly why I wished we had a program that could read battery consumption
Click to expand...
Click to collapse
Try DRBattery from preware, its an older app, but works to track the battery
Bluetooth - Battery Drain
charlieben said:
have you tried changing the wifi sleep settings in the WiFi settings panel?
there's two options for it:
keeping it on all the time (even when the screen is off)
turn it off when the screen sleeps
I've found that setting it to the latter improves battery life
could be the solution to your woes,
Click to expand...
Click to collapse
Thanks! I changed the WiFi settings to turn off when screen sleeps. I had a big drain in sleep mode.
My question is about Bluetooth in sleep mode. Is the only option to manually turn it off when not in use? I am using Motorola Android Bluetooth keyboard and Sony Bluetooth headset. Using this keyboard now to type this. Have my headset physically turned off. Since headset is shown in normal while keyboard is bold, does that help with battery drain?
Wait so there is no standby or sleep mode? I changed the wifi setting to turn off and that helped battery drain a little. I don't have email setup or any im programs at all. With the screen off it drained about 25-30% in 5 hours of doing nothing.
striker199 said:
Wait so there is no standby or sleep mode? I changed the wifi setting to turn off and that helped battery drain a little. I don't have email setup or any im programs at all. With the screen off it drained about 25-30% in 5 hours of doing nothing.
Click to expand...
Click to collapse
That seems like a lot. Mine with email/wifi left on seems to use about 5% to 10% a day.
Are you still on the first/second charge? I've noticed my battery life improving a lot after the first few charges.
thecalip said:
Sorry. 5 to 10% per hour.
Click to expand...
Click to collapse
Something's wrong with yours. Mine's nothing like that. Are you using an app for measurement or how are you coming up with these numbers?
striker199 said:
Wait so there is no standby or sleep mode? I changed the wifi setting to turn off and that helped battery drain a little. I don't have email setup or any im programs at all. With the screen off it drained about 25-30% in 5 hours of doing nothing.
Click to expand...
Click to collapse
Are both your cores accidentally overclocked all the time?
I have all the tweaks, 1.7 OC, wifi always on / never sleep, and my battery doesn't drop at all overnight.
seboj said:
Are both your cores accidentally overclocked all the time?
Click to expand...
Click to collapse
I did the log patches, and have the F15C Eagle Kernel. Govnah shows both at 1.7, then 432MHz when idle. Sorry I'm still new obviously.
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.
Hello,
I have a smartq t20 tablet (great cheap tablet!) running ICS, my question is, when I leave wifi on all the time, what happens when the tablet goes to sleep (not awake according to the battery details)?
I can leave a download running and it would continue when the screen is off, does this mean my tablet is never going into deep sleep? Or is that unrelated?
I know the wifi itself drains more battery when left on even if it isn't being utilized but I was wondering about the CPU side of it.
Thanks!
or.green said:
Hello,
I have a smartq t20 tablet (great cheap tablet!) running ICS, my question is, when I leave wifi on all the time, what happens when the tablet goes to sleep (not awake according to the battery details)?
I can leave a download running and it would continue when the screen is off, does this mean my tablet is never going into deep sleep? Or is that unrelated?
I know the wifi itself drains more battery when left on even if it isn't being utilized but I was wondering about the CPU side of it.
Thanks!
Click to expand...
Click to collapse
If you want to download something with the screen off go to Setings/Wifi/WiFisettings and choose the sleep policy as never. Then the screen can go off and still download... Regarding battery issue, it would be like the tab was on sleep anyway, battery usage would be minimal... maybe more than usual... but very minute nevertheless... hope it helps
No worries.
or.green said:
Hello,
I have a smartq t20...
...I know the wifi itself drains more battery when left on even if it isn't being utilized but I was wondering about the CPU side of it.
Thanks!
Click to expand...
Click to collapse
Well if you are concerned about battery and CPU usage, you have nothing to worry about. If the download is something along the lines of a movie, then you may see a small drop in battery length and internet speed. You should see barely any change in your CPU.
Thanks for the answers guys!
I knew how to do it, I was only asking about the effects.
I experimented a little with CPU spy and found out that the CPU never goes to Deep Sleep if the Wifi is active when the screen is turned off.
As a result I would expect the battery drain to be very different unless I don't understand deep sleep completely and it isn't such a big difference from the lowest CPU setting.
Hey guys, I am having a problem with my Amaze, more specifically, the battery is dying absolutely WAY to quickly. For example, yesterday morning, after unplugging my fully charged phone, I dropped it straight into my pocket, and maybe looked at it twice the entire day. When I pull it it at the end of the day, the battery is red, with 8% left. If I were to be using it, the battery would last about 30 minutes on a full charge, most likely. I've also noticed that the phone is really hot, even in my pocket. If it helps, I am on ICS and have been using it since it was leaked in April, however, this problem is new (about 2 days ago is when it first started), as I usually get about 8-10 hours with moderate usage. Can you guys please help me? Thanks!
Well if it just started happening recently, and you haven't made any changes, then the battery may just be going bad... If that's the case, you can call HTC and they will send you one free replacement.
sent from my NRGized Amaze,
powered by faux kernel v.10
could be just the battery.. but if you don't mind me asking - how long have you owned the device? I suggest you dl JuiceDefender from the playstore and see if that helps - Definitely helps my device get through the day with moderate use and one time charge every 1 1/4 a day but this could vary on owners usage. Also, check your settings to conserve battery life such as turning off wifi, gps, auto syncs on your fb, gmail etc. and adjust your brightness to the lowest if possible and OH... less widgets and windows > less power that the battery consumes. Hope that helps!
b33j7030 said:
could be just the battery.. but if you don't mind me asking - how long have you owned the device? I suggest you dl JuiceDefender from the playstore and see if that helps - Definitely helps my device get through the day with moderate use and one time charge every 1 1/4 a day but this could vary on owners usage. Also, check your settings to conserve battery life such as turning off wifi, gps, auto syncs on your fb, gmail etc. and adjust your brightness to the lowest if possible and OH... less widgets and windows > less power that the battery consumes. Hope that helps!
Click to expand...
Click to collapse
Like I said, this just started happening. I didn't just decide to leave all my wifi and GPS and Bluetooth on all day. Also, to answer your question, I've had it since the beginning of the year. I think it's just the battery. I'll call HTC and report back.
cool.. i'm hoping its just the battery.
b33j7030 said:
cool.. i'm hoping its just the battery.
Click to expand...
Click to collapse
Thanks. The overheating does concern me a bit, however.
HarryHyper said:
Thanks. The overheating does concern me a bit, however.
Click to expand...
Click to collapse
you're not alone in that dept but its highly tolerable... look on the bright side.. least you'll have a pocket warmer during WINTER lol
b33j7030 said:
you're not alone in that dept but its highly tolerable... look on the bright side.. least you'll have a pocket warmer during WINTER lol
Click to expand...
Click to collapse
LOL.
Alright guys, looks like it solved itself. Interesting...
I usually only get 6-8 hours on my battery, and its been like that from the beginning. is there something wrong with my phone then?
erkk_69 said:
I usually only get 6-8 hours on my battery, and its been like that from the beginning. is there something wrong with my phone then?
Click to expand...
Click to collapse
Nope, battery life isn't that great with this phone, depending on how much you use your phone and what all you use it for you will get any where from 6-14 hrs + or - some. Also your Rom and kernel will make a difference..
sent from my NRGized Amaze,
powered by faux kernel v.10
I find usually its the user when it comes to battery I get roughly 20 hours with regular use
Sent from my HTC_Amaze_4G using xda premium
HarryHyper said:
Alright guys, looks like it solved itself. Interesting...
Click to expand...
Click to collapse
Nice!... Glad to hear
This happens to me from time to time, and the phone is ALWAYS hot when this happens.
What I've come to discover that it's usually something that' activating the phone while asleep.
The phone is hot, because the processor is being used. That's why the battery is completely dead so quickly, something is pulling it out of deep sleep and causing it to run full bore. The key sign is the phone is hot.
I recommend you get an app that lets you see wakelocks, and what's keeping the phone awake etc (I use GSAM battery monitor) Whenever I notice my phone becoming hot for no apparent reason, I know for a FACT that my battery will be dead in a matter of hours. Lately it has been "Android System" that's the culprit, and I can't quite nail down what is doing it, but it's very random and not much of a problem because I do a reboot and things are back to normal.
First, try to reboot your phone. Get system tuner and see what processes are using the processor when the phone is hot (make sure you show ALL processes, even the default excluded ones). Check the wakelocks. Get battery monitor and check the mA usage (it keeps a running history). When my phone is running optimally, I have a mA drain of around 70-90mA when screen off/deep sleep, and it should maintain this type of drain... when my phone is becoming hot for no reason, I see numbers anywhere from 300-600mA drain for no apparent reason. A lot of the time there was an APP that was offending, so I would first check that. Like I said though lately it has been "Android System" and it's kind of hard to nail that down, but it's so random.
When my phone is cool to the touch most of the time, I know it's running optimally because it's achieving deep sleep. I've found a lot of it has to do with what you had running before you turn the screen off. A reboot ALWAYS fixes it for me. If you can't seem to nail down the offending app, do a full reset back to stock and you should notice that your phone runs very very cool when the screen is off and it's sleeping. I usually get anywhere from 24hrs-2 days of moderate use with the screen off governor set to conservative, and maximum clock for screen off ~600mHZ. I use interactive governor for screen on, but that's for responsiveness and you'll probably have better luck with ondemand for battery life. YOu can set these in System Tuner.
Just remember, if the phone is HOT, it's using energy. If it's hot, something, somewhere, is causing the processor to run at a high clock frequency. If the phone is HOT after being in your pocket/screen off for a good amount of time, something is definitely wrong/rogue app. The phone should never be hot returning from deep sleep. I bet if you check your default battery monitor (The android one) you'll notice that the bar for AWAKE is probably almost solid blue, something is preventing it from going into deep sleep. If I notice my phone is hot when I take it out of my pocket, I immediately know that something isn't right. This should NOT happen.
sportsstar89 said:
I find usually its the user when it comes to battery I get roughly 20 hours with regular use
Sent from my HTC_Amaze_4G using xda premium
Click to expand...
Click to collapse
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
ericdjobs said:
This happens to me from time to time, and the phone is ALWAYS hot when this happens.
What I've come to discover that it's usually something that' activating the phone while asleep.
The phone is hot, because the processor is being used. That's why the battery is completely dead so quickly, something is pulling it out of deep sleep and causing it to run full bore. The key sign is the phone is hot.
I recommend you get an app that lets you see wakelocks, and what's keeping the phone awake etc (I use GSAM battery monitor) Whenever I notice my phone becoming hot for no apparent reason, I know for a FACT that my battery will be dead in a matter of hours. Lately it has been "Android System" that's the culprit, and I can't quite nail down what is doing it, but it's very random and not much of a problem because I do a reboot and things are back to normal.
First, try to reboot your phone. Get system tuner and see what processes are using the processor when the phone is hot (make sure you show ALL processes, even the default excluded ones). Check the wakelocks. Get battery monitor and check the mA usage (it keeps a running history). When my phone is running optimally, I have a mA drain of around 70-90mA when screen off/deep sleep, and it should maintain this type of drain... when my phone is becoming hot for no reason, I see numbers anywhere from 300-600mA drain for no apparent reason. A lot of the time there was an APP that was offending, so I would first check that. Like I said though lately it has been "Android System" and it's kind of hard to nail that down, but it's so random.
When my phone is cool to the touch most of the time, I know it's running optimally because it's achieving deep sleep. I've found a lot of it has to do with what you had running before you turn the screen off. A reboot ALWAYS fixes it for me. If you can't seem to nail down the offending app, do a full reset back to stock and you should notice that your phone runs very very cool when the screen is off and it's sleeping. I usually get anywhere from 24hrs-2 days of moderate use with the screen off governor set to conservative, and maximum clock for screen off ~600mHZ. I use interactive governor for screen on, but that's for responsiveness and you'll probably have better luck with ondemand for battery life. YOu can set these in System Tuner.
Just remember, if the phone is HOT, it's using energy. If it's hot, something, somewhere, is causing the processor to run at a high clock frequency. If the phone is HOT after being in your pocket/screen off for a good amount of time, something is definitely wrong/rogue app. The phone should never be hot returning from deep sleep. I bet if you check your default battery monitor (The android one) you'll notice that the bar for AWAKE is probably almost solid blue, something is preventing it from going into deep sleep. If I notice my phone is hot when I take it out of my pocket, I immediately know that something isn't right. This should NOT happen.
Click to expand...
Click to collapse
what program do you use to measure battery drain? I use Battery Monitor Widget, but it's not giving me an accurate answer (lets say I had the phone on idle w/o data/sync... the available % is stable over 5 hours (~1% loss per hour), but the current usage says at least -100mAh)
for me, the idle battery drain (apps autosyncing/using data) is the problem
I see my device properly going to sleep (deep sleep is the majority of the usage, not too many wakelocks/processes.....)
with data off and sync off, idle battery usage goes to a minimum
paperWastage said:
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
what program do you use to measure battery drain? I use Battery Monitor Widget, but it's not giving me an accurate answer (lets say I had the phone on idle w/o data/sync... the available % is stable over 5 hours (~1% loss per hour), but the current usage says at least -100mAh)
for me, the idle battery drain (apps autosyncing/using data) is the problem
I see my device properly going to sleep (deep sleep is the majority of the usage, not too many wakelocks/processes.....)
with data off and sync off, idle battery usage goes to a minimum
Click to expand...
Click to collapse
I use battery monitor widget to measure drain.. as far as accuracy, I'm not sure? I don't know if it's EXACT but it seems to be a pretty good indicator of drain. When in deep sleep the phone usually measures anywhere from 70~mA-120mA. Usually it stays below 100. Before I changed the screen off governor / max freq (screen off) it was almost always 100+. Screen off governor is conservative with a max freq of ~600MHz.
I have no idea how exact it is, but when it's reporting ~300mA, my battery is definitely draining much faster.. and when it's reporting 500-900mA~ my battery is draining incredibly fast, so it at least seems to be a solid indicator of current usage.
ericdjobs said:
I use battery monitor widget to measure drain.. as far as accuracy, I'm not sure? I don't know if it's EXACT but it seems to be a pretty good indicator of drain. When in deep sleep the phone usually measures anywhere from 70~mA-120mA. Usually it stays below 100. Before I changed the screen off governor / max freq (screen off) it was almost always 100+. Screen off governor is conservative with a max freq of ~600MHz.
I have no idea how exact it is, but when it's reporting ~300mA, my battery is definitely draining much faster.. and when it's reporting 500-900mA~ my battery is draining incredibly fast, so it at least seems to be a solid indicator of current usage.
Click to expand...
Click to collapse
On my previous phone (LG Optimus T / Optimus One/ P509, CM9 ICS ROM), Battery Monitor Widget reports more accurate readings (idle with data off= -2mA or -20mA<dont remember>, accurately representing that 1% of battery would last at least 2 hours)
Phone with the new kernel (KozmiK Ruby -0.5a) still goes battery drain crazy (even with Juice Defender installed now).... I hit 10%, then got fed up, turned off data... then the phone slowly sipped battery for the next 3 hours going down only 1%.... sigh
I think Facebook Messenger is the data hogger in my case, since I do use it often... will try a new ROM build without logging onto facebook messenger, see how it goes
paperWastage said:
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
Click to expand...
Click to collapse
What you said is true, at least for data on - autosync on. My battery last around 10 hours idle + 3.5 - 4 hours on screen usage. It seems that autosync eats a lot of battery. Will try to turn that monster off and see how much it will improve. I have bad habit to push refresh button on gmail/facebook widget, even with autosync on,
I used to get 14-16 hours. Now my battery won't last more than 6 hours. I gotta replace my Anker
Sent From My HTC Amaze 4G via Someone's Room
Most recently I got 1 day and five hours with a fair amount of use by using faux 011 kernel and using CPU editor script to set it to battery saving profile. I'm at 45% right now with fairly heavy use after over 18 hours.
Battery life is totally under your control, it takes some work to get it where you want it.. but you also have the option of buying a bigger anker battery with external charger for $20 and carrying that spare battery, and simply not giving a damn.
Just saying, battery doesn't have to matter for a very small price and a little space to carry the spare battery in your pocket.
Sent from my HTC_Amaze_4G using xda app-developers app
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 Moto Z'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!
Pretty good
Lost 3% on standby during 8 hours through the night.
Now that I'm on nougat, I'm losing about 8% over a 7 hour period
Not all cores stay in deep sleep when the screen is off.
I am seeing about 50% at 652MHz and 50% Deep Sleep when the screen off. I am not sure if this is expected.
I am also losing about 1% / hour in standby with the latest Nougat Update.
I just got it so I can't compare before & after.
1 percent per hour can be completely normal depending on someone's setup, apps install, signal strength, etc.
Most phones I've ever owned are about that or just under. Only my Nexus 7 2012 was way lower. About 0.4% per hour.
1 percent per hour is definitely not anything to be too concerned with honestly.
I'd start with CPU spy or a similar app, to see if your phone is actually in deep sleep when not used. If not, then you could have an issue.
i am extremely satisfied with stock(everything stock unrooted,locked bl) standby drain. I don't use Approach, Attentive Display and Notification Display in Moto app.
Wifi ON : 3% over 7 hours sleep
Wifi OFF : 1% over 6 hours sleep
Data(3G) ON : 7% over 5 hours sleep
Since N7 update, getting very bad idle drain.
Losing 28% during 7 Hrs overnight (>4%/Hr) and the BBS logs don't show any major issues.
Posting my logs here hoping a fresh pair of eyes can locate any anomalies I missed.
You might have bad reception in the place you have your phone. Check settings>battery> click on graph>cellular network signal. If the bar is red/ orange or has many small red lines you might be located between two towers.
Try switching to 3G or 2G overnight and if there is a dramatic difference it will confirm its signal-related battery drain.
Vcek said:
You might have bad reception in the place you have your phone. Check settings>battery> click on graph>cellular network signal. If the bar is red/ orange or has many small red lines you might be located between two towers.
Try switching to 3G or 2G overnight and if there is a dramatic difference it will confirm its signal-related battery drain.
Click to expand...
Click to collapse
Just an update; I used a Tasker profile to disable WiFi and Bluetooth when Display is off between 11 PM to 6 AM (my approx. sleep window). This has brought down the Idle consumption during night to 0.8%/Hr suggesting at-least one of them to be the reason for abnormal drain. I think the WiFi or Bluetooth modules in the Nougat update may not be fully optimised. I intend to test with only one of them turned OFF alternatively over next two nights and locate the real culprit.
Of course this does not help me during the day when both WiFi and Bluetooth have to be kept ON as I can't be bothered to turn them On/Off frequently whenever I start/stop listening to music or connect/disconnect to work WiFi. I'll explore if I can write Tasker profiles to switch them On/Off based on location, proximity to work WiFi AP and music steaming status.
Also, as suggested by @Vcek above, I can see some orange bars in the battery graph overnight indicating signal issues at my home location which may also be adding to the increased drain.
Overall I am sufficiently comfortable now knowing what is causing the increased drain and having at least some level of control over it.
My phone still open when i asleep .
Hmm..
I've been thinking about this as well in the first week of owning the phone. I leave out at 530am and get back around 6pm and am sitting around 50% (not bad, don't get me wrong). But the 2 year old phone it replaced would still be at ~40% in the same day.
It's better, don't get me wrong, just not as much as I figured.