Related
This is my first tablet and not sure about battery life and everything. So I left my tablet on through the night and lost roughly 10% through the night. Not sure if thats normal or not. But if so, I will definitely be turning it off throughout the night or when I won't be using for awhile. But is there a standby mode or something we can put the tablet into?
tu3218 said:
This is my first tablet and not sure about battery life and everything. So I left my tablet on through the night and lost roughly 10% through the night. Not sure if thats normal or not. But if so, I will definitely be turning it off throughout the night or when I won't be using for awhile. But is there a standby mode or something we can put the tablet into?
Click to expand...
Click to collapse
I don't turn it off, no. One thing that will save you battery is to turn the airplane mode on when you're not using it.
I just turn off wireless and pwer off screen.
never been off
I never turn my tab off. At night.it will loose. 6 to 8 percent. At night maybe a bit more or less depending on how long its off.
And I use it often thru out the day
Awesome battery life
Haven't turned it off yet. I use it all day and plug it in at night around 20-30%, wake up charged and do it again.
I just turn the screen off overnight while charging; I leave wifi on to synch work emails & calendars. Nearly a decade of smartphone use has gotten me in the dedicated habit of charging everything every night.
Thing to keep in mind, tablets arent Kindles with week+ battery life; keep in the habit of charging it whenever convenient & you won't run out of juice unexpectedly.
I'm in the minority here.
I turn my Tab and Evo off every night, the phone just before bed. It save a bit of batt life and unwanted calls in the middle of the night or any alert tones as I'm a pretty light sleeper. I've also been doing this for probably 7-8 yrs with all my smart phones (Symbian, Win-Mo, Palm, BB and now Android).
Sometimes I turn it off at night, sometimes I just leave it on. It's definitely on ALL day. I haven't really seen it losing much battery if I leave it on overnight, but I don't have it configured to sync frequently. Whenever I notice the battery is getting a little low, I charge it up again -- don't really have a set pattern or routine that I charge it.
Anytime I know I won't be using it for twenty minutes or more, I just shut it down.
Not sure there is a right/wrong, good/bad way to do this, as it's pretty much a personal preference thang!
If I'm not gonna use it for more than a day, sure.
I also turn on airplane mode when I'm reading via Kindle or anything else that doesn't require wifi.
On a semi related note, does anyone else find the screen is too bright if you're in a dark room reading, even if you have brightness on the lowest setting?
So far I never see any difference to turn AIRPLANE MODE on... but anyway some people believe so... let say that work... hu hu hu
well
to answer I never turn off my tablet, neither turn off the wifi
I try to not use AUTO brightness, set brightness to medium.
I will turn it off... well... actually I do not.
to muqali. on lowest setting? on dark room lowest setting I think it's fine (but I have an antiglare screen... that dim the light)
muqali said:
If I'm not gonna use it for more than a day
Click to expand...
Click to collapse
Not use it for more than a day??
That is crazy talk! I'd suffer some serrrrrious withdrawal
On to the question, no, my tablet stays on 24/7. The closest it gets to off is booting into recovery, but then it's right back on.
All my backups, security scans and cloud syncs are scheduled for the wee hours of the morning so wifi stays on at night too. Also, my iconia is my alarm clock, which is very useful for a shift worker who needs different alarms on different days.
only if the battery is low and Im to lazy to go charge it
I only turn my tablet off in order to reboot when it freezes up or gets laggy (maybe once a week). The rest of the time, it's on standby or being used.
I leave it on sometimes, other times I will randomly turn it off. I mean, its not a phone.. no reason it should be on 24/7. I don't even leave my PC on 24/7 - as it saves a lot of electricity to turn it off.
My phone (Droid X) however, stays on 24/7 =P
Yeah, I've been leaving mine on and its been just fine. I notice it turns off wifi or I guess at least disconnects when the screen is off so I'm sure that helps. At nights I guess I can turn airplane mode on and that should help. I'm impressed though with the battery so far.
I always turn it off when done, unless I know I will be using again in a short.
muqali said:
On a semi related note, does anyone else find the screen is too bright if you're in a dark room reading, even if you have brightness on the lowest setting?
Click to expand...
Click to collapse
I use the Nook app as my eBook reader instead of the Kindle app. The Nook app has a separate brightness control within the app, and it allows me to turn even the white page brightness down to where it's very comfortable to read even in a pitch dark room. The nice thing about this is when I'm done reading and exit the Nook app, the global brightness settings for the tablet are restored so my dark wood wallpaper isn't too dark.
I'm not sure if the Kindle app has its own brightness control or not, but it might be with looking into.
muqali said:
If I'm not gonna use it for more than a day, sure.
I also turn on airplane mode when I'm reading via Kindle or anything else that doesn't require wifi.
On a semi related note, does anyone else find the screen is too bright if you're in a dark room reading, even if you have brightness on the lowest setting?
Click to expand...
Click to collapse
yes, I noticed too, it's too damn bright, but not as bright as my phone, on the good side screen comparison between iconia, transformer, zoom and ipad2 the iconia gets praise cuz it's super dark black... you can notice easily (like me) if you're in the dark and look the status bar
I do not. I don't really ever turn mine off actually, except if the battery is at low and I'm out and not able to charge it, but that rarely happens.
I don't turn my PC off either. Turns out it doesn't save as much energy for me vs. time. I'd save roughly $90 a year if I diligently turned my PC and HTPC off...my PC however serves as the file server for everything in my home and I'm also very random in terms of bed times so it would cost me so much time (and maybe some parts issues as well) turning it on and off every time I needed to use it.
My new note's battery seem weird after I let it run to 1% and then charge up to 100%.
After that, it seems to lose battery very much faster.
Left overnight, it went from 79% to 49%!! a 30% drop!!
I checked Battery status report battery health is good and average 33-35 degrees temperature.
Bulk of battery usage is reported for Display (62%, "time on" of 1hr 30m) ...
Is this normal??
What can I do?
Thanks.
Maybe the battery needs some recalibration, run it down to 1% then charge the phone while its still off.
Here's the battery level profile...
Not sure what is keeping the phone awake even while screen-off??
Any help or advice to diagnose and resolve the battery issues appreciated.
planetcooler said:
Here's the battery level profile...
Not sure what is keeping the phone awake even while screen-off??
Any help or advice to diagnose and resolve the battery issues appreciated.
Click to expand...
Click to collapse
Try a factory reset and then calibrate the battery.
Just woke up after the first night with the Note. I had 45% battery left when i went to bed, and now 9 hours later it's at 43%.
Sent from my GT-N7000 using xda premium
planetcooler said:
Not sure what is keeping the phone awake even while screen-off??
Click to expand...
Click to collapse
You diagnosed the problem correctly by identifying the device being awake while the screen is off. I suggest two tools to narrow it down:
1. Cpu Spy, Market, free, displays how much time the CPU spent in the different power states. During the night it should almost completely be in deep sleep.
2. BetterBatteryStats, Market, ~2.50$, allows to identify apps with wakelocks, apps which prevent the system to enter the deep sleep power state while the screen is off and the device basically is idleing. On CM Spareparts xan do that for free, for Samsung devices I first have to find a free alternative app that works...
No wipe needed (yet), no delete this or do that. First find the villain, then shoot em, not the other way round.
Sent from my GT-N7000
Installed BetterBatteryStats,
but there is lots of information, and I have little clue what these constitute or how to identify what apps cause the issues??
You could post screenshots of all the screens of betterbatterystats and we will try to help you.
Charge the phone to 100% and disconnect it right before you go to sleep, enter cpuspy and reset its counters. Then enter task manager and kill all the programs and clean the memory. Now go to sleep and when you wake up post screenshots of the built in battery stats, betterbatterystats and cpuspy.
Hi
I have a similar problem, my battery keeps draining entirely too much for what I think it should. Mine gets drained about 40% in about 10 hours of very light use.
BetterBatteryStats shows it is WiFi that has a humongous amount of wakelocks, but the thing here is I have WiFi disabled.
Image (BetterBatteryStats): http://antti.vahtera.org/images/SC20111221-020623.png
CPU Spy shows nothing that looks that weird to me, although I rather wonder why so little deep sleep and so much 200MHz, but that might be if deep sleep has a longer "counter" than it did on SGS/SGS2. If I use the phone to check time, or twitter from a widget couple of times per hour, does SGN enter deep sleep during those "breaks"?
Image (CPU Spy): http://antti.vahtera.org/images/SC20111221-020441.png
But, the one that caught my eye, was the stock Battery Info window. During the (almost) entire 10h time the phone was awake?! Why in the whole wide world? Does SGN really have some bug with WiFi keeping it awake even though it is disabled?
Image (Battery Info -window): http://antti.vahtera.org/images/SC20111221-020744.png
I really wanna get behind this. I love this phone, but this battery drainage begins to be a problem for me. I got about 2-5% drain per night with SGS2 and 10-15% per day on similar usage.
AnttiV said:
Hi
I have a similar problem, my battery keeps draining entirely too much for what I think it should. Mine gets drained about 40% in about 10 hours of very light use.
BetterBatteryStats shows it is WiFi that has a humongous amount of wakelocks, but the thing here is I have WiFi disabled.
Image (BetterBatteryStats): http://antti.vahtera.org/images/SC20111221-020623.png
CPU Spy shows nothing that looks that weird to me, although I rather wonder why so little deep sleep and so much 200MHz, but that might be if deep sleep has a longer "counter" than it did on SGS/SGS2. If I use the phone to check time, or twitter from a widget couple of times per hour, does SGN enter deep sleep during those "breaks"?
Image (CPU Spy): http://antti.vahtera.org/images/SC20111221-020441.png
But, the one that caught my eye, was the stock Battery Info window. During the (almost) entire 10h time the phone was awake?! Why in the whole wide world? Does SGN really have some bug with WiFi keeping it awake even though it is disabled?
Image (Battery Info -window): http://antti.vahtera.org/images/SC20111221-020744.png
I really wanna get behind this. I love this phone, but this battery drainage begins to be a problem for me. I got about 2-5% drain per night with SGS2 and 10-15% per day on similar usage.
Click to expand...
Click to collapse
yeah, there's something seriously wrong with your phone. Are you rooted ? would you consider a full wipe and maybe a different ROM ?
Not rooted, not modified in any serious way either. (Using GO Launcher EX, not TouchWiz launcher, that's really the extend of modification on this phone.)
Android version is 2.3.6, Baseband N7000XXKK5, kernel 2.6.35.7-N7000XBKK4
This is what was shipped with the phone. It's unbranded and unlocked.
I haven't really done anything to it but installed apps from Android Market (and a couple with Samsung Apps).
EDIT: This is my day-to-day phone with all settings as I like them and all things set, so I would like if I wouldn't have to do a full wipe. But if nothing else helps, I guess I'll have to, in the end.
I hope someone will be able to help you cause I've never seen anything like that.
Sent from my GT-N7000 using Tapatalk
This might help...
I had the same problem. The first night my Note was dropping from 100% down to about 50% when I was asleep and the screen was off.
In the battery stats I could see that it was the Android core that used all this power.
So I tried a couple things to see if it helped:
1) I went to WiFi-settings and set it to turn off WiFi when screen off. This is a setting that is not on by default, you have to set it yourself.
2) I turned off AutoSync (Google account and so on)
Those to settings removed the overnight powerdrain problem. The next night it only went from 100% to about 98% when I slept
And since I am a serious betterysaver I also turned off autolight on screen, and set it to lowest light possible (still nice picture). I turned on the "Autoadjust screenpower), turned off all animations, turned off all kind of vibrations on the phone.
I left the"System powersetting" alone. It didnt save much power and it made the phone slower.
All in all, now my battery is great, I still have lot of juice left after a full day of using my Galaxy Note
I seem to have fixed my problem, without having to do a full wipe. I don't know which part it was that finally did it, but I'm glad it now behaves like I think it should. (about 2% battery drain in ~5h in pocket, one 1min phonecall and two or three times checking time from lockscreen.)
Anyway, I apparently ALSO had the infamous problem with Mediaserver eating humongous amounts of battery, so I'm not sure if that had anything to do with the WiFi keeping it awake or was just a separate problem.
Long story short, here's what I did:
a) installed JuiceDefender, had it manage Wifi
b) turned Wifi on, restart
c) turned Wifi off, restart
[d) installed nomedia manager and excluded most directories from mediascanner]
e) turned phone off, recharged to 100%.
Seems to be working now. No WiFi wakelocks, no mediaserver eating CPU, deep sleep ~70% of the time.
Prior to ICS my tf101 would last a good 3-4 days on a fully charged battery with my normal usage during the week. Yesterday I installed ICS went to sleep with just over 50%, it had suffered some heavy usage yesterday, and woke up to a completely flat and switched off tablet this morning. This is very unusual performance for my tab.
When I installed ICS I did a factory reset to clean up my tab so only have a pinch of the apps I had previously installed. One thing I did notice is on the battery tab of system settings the tablet was awake 100% of the time were traditionally it would only have a blue mark were it was in use on the awake line. Battery usage data is unavailable, too, so cant see what is causing tablet not to sleep.
Any suggestions?
I would wait until it settles a bit more, plus wait for a custom rom. It probably has some bug, seeing as it is the first ICS for our device.
I also notice some battery drain last week
on HC and ICS
right now i reverted back to honeycomb
ill update you later
if anything changes to me
MyZine Widget
Got rid of the MyZine widget and my tablet now goes to sleep in standby. I noticed, when browsing the running apps list, that the app kept 'restarting' so it could buggy or at the least was having a problem with my tab.
Prior to ICS my battery drain was crazy, especially if I leave wifi on. Not anymore, it's back to normal consumption like I had before the last HC firmware update.
I had the same problem this morning.
take cpu spy to have a look if the tablet goes into depp sleep.
https://market.android.com/details?...251bGwsMSwxLDEsImNvbS5idmFsb3Nlay5jcHVzcHkiXQ..
i had to reboot and then everything was fine...
I've still got problems with my tab. Returned to it after a few hours non-use and it had shutdown itself. Battery Drain still seems an issue too. I'll install that app and see what it reports.
Check WiFi disconnection policy and if GPS is disbled.
Here I am trying to get answers to exactly the op's problem. Everything went smooth installing ics. Even wiped data.
Woke up this morning to a very dead battery. Went to sleep at 83%. Interestingly, the battery graph show nothing after about 80%. No indication on the graph of total discharge...and no app usage. Just straight from 80 to zero.
I can't determine if it's a hung app or what....I've installed almost nothing. And it looks like the tablet drained while it was OFF!
https://www.dropbox.com/sh/t0gmko26t7wj41m/fIty0T1ySi/Screenshot_2012-02-25-07-56-17.jpg
Sorry for the link....I could not get the damn picture posted for the life of me...despite 45 minutes worth of my time.
i also woke up to a dead battery this morning. it was 50%+ when i left it on standby, wifi & gps switched off. i would have expected minimal drain on HC.
Balor said:
Prior to ICS my tf101 would last a good 3-4 days on a fully charged battery with my normal usage during the week. Yesterday I installed ICS went to sleep with just over 50%, it had suffered some heavy usage yesterday, and woke up to a completely flat and switched off tablet this morning. This is very unusual performance for my tab.
When I installed ICS I did a factory reset to clean up my tab so only have a pinch of the apps I had previously installed. One thing I did notice is on the battery tab of system settings the tablet was awake 100% of the time were traditionally it would only have a blue mark were it was in use on the awake line. Battery usage data is unavailable, too, so cant see what is causing tablet not to sleep.
Any suggestions?
Click to expand...
Click to collapse
Try this
Go to settings /WiFi /click three dots in upper right corner/Advanced/ uncheck keep wifi on during sleep.
go to recently used apps and close all ( swipe to right)
put tab to sleep for a while
Come back and turn on.
go to settings
battery
tap grey battery level graph to expand
check individual bars to see what was on and off.
Looks liks some apps are keepi9ng WiFi and GPS on and draining battery.
It would be really nice in future update to have a setting like below:
Setting
Sleep setting
On screen off close all apps except ( here you get to choose apps to leave open)
I'm glad I am not the only one with battery drain issues. I thought I was doing something wrong.
Several days ago I charged my dock and tablet fully. I then turned off the tablet, closed the lid and didn't use it for a few days, when I went to run it again it was totally dead. I would have expected it to at least hold something of a charge in a completely off state.
Yesterday I left the tablet and dock on but just turned the screen off and again this morning had a drained dock.
Just seems like no matter how I try to settle on a way I still see more of a drain than I would have expected.
---------- Post added at 03:15 PM ---------- Previous post was at 03:11 PM ----------
Rumbleweed said:
Try this
Go to settings /WiFi /click three dots in upper right corner/Advanced/ uncheck keep wifi on during sleep.
go to recently used apps and close all ( swipe to right)
put tab to sleep for a while
Come back and turn on.
go to settings
battery
tap grey battery level graph to expand
check individual bars to see what was on and off.
Looks liks some apps are keepi9ng WiFi and GPS on and draining battery.
It would be really nice in future update to have a setting like below:
Setting
Sleep setting
On screen off close all apps except ( here you get to choose apps to leave open)
Click to expand...
Click to collapse
I will have to take a look at that setting myself and see what is up with it.
Yes, it would nice to have a sleep setting button for some helpful settings.
Have there been any firmware updates for the dock itself, or is that not possible?
I'm having the same issue dock was at 80% last night get up this morning and it's at 6%. I set wifi to off during sleep to see if that helps any.
dmazyn said:
I'm having the same issue dock was at 80% last night get up this morning and it's at 6%. I set wifi to off during sleep to see if that helps any.
Click to expand...
Click to collapse
Have to close apps that are keeping stuff on. Look at permissions. More and more are adding "prevent "Function X off during sleep."
As soon as I got the update installed I turned GPS off and set WiFi to never sleep, woke up this morning to only 4% battery drain. The tablet went 12 hours and went from 40% to 36%, i also had apps open...
apps open: engadget, camera, browser, gmail, market and settings..
no battery drain yet, updated yesterday and only 5% drain during the night with apps open
Help!
Same problem here. I noticed high battery drain yesterday and didn't think to leave it plugged in.
This morning, it wouldn't turn back on! I've left it plugged in in case the battery drained too far and will try to turn it on later on.
With HC, the power button was buggy (had to press really hard) and seemed that that went away with ICS (well except for now). Don't know if this is related.
Same issues with me. Except my tablet won't wake up when I push the power button. I have to hold and reset it. Here is the kicker: I will get a 20% power drain over 9 hours on top of it. So not only does my tablet not turn on after it being asleep, but I get a power drain as well!
My Settings: Stock ICS off a completely reformatted device, Keep Wi-Fi on only when plugged in, screen timeout is 1 minute and MobileDock Battery Saving mode is on. My battery usage indicator does not work... I have to get the very basic info from my battery widget.
Very disappointed! This was the one thing I wanted fixed the most. I hated using the airplane mode app. It severely affected performance.
zillah1985 said:
Same issues with me. Except my tablet won't wake up when I push the power button. I have to hold and reset it. Here is the kicker: I will get a 20% power drain over 9 hours on top of it. So not only does my tablet not turn on after it being asleep, but I get a power drain as well!
My Settings: Stock ICS off a completely reformatted device, Keep Wi-Fi on only when plugged in, screen timeout is 1 minute and MobileDock Battery Saving mode is on. My battery usage indicator does not work... I have to get the very basic info from my battery widget.
Very disappointed! This was the one thing I wanted fixed the most. I hated using the airplane mode app. It severely affected performance.
Click to expand...
Click to collapse
Maybe we are all having the random reboot problem.
It makes sense if you think about it.. Mine would randomly go into reboot in sleep and the device would get stuck on the Asus loading screen. So when the device cycle through the loading screen for an entire night, you would find a dead tablet by the morning.
So far, I have encountered 2 random reboots, the only way to bring the device out of the boot screen is to hard reset it by holding down the power button.
Sent from my HTC Sensation 4G using XDA App
balor you most likely got better battery due to custom rom
custom roms tweaked the battery for couple days use.. asus claimed like 9 hours on the tablet.. and like 19 with dock keyboard. custom ics roms inc
I like having my LED notification light on as much as the next guy, but I think it's preventing the phone from going into deep sleep, and while it may be running one core at a low clock speed, it still is using a enough voltage to drain the battery rather quickly. If you look at your battery usage and the phone says "Awake", that means that the CPU was doing something at the time and I've noticed it's always awake whenever I have a notification.
Is there a way to let the phone sleep and have LED turned on, or is it just a design flaw in Android?
Ascertion said:
I think it's preventing the phone from going into deep sleep, .... I've noticed it's always awake whenever I have a notification.
Click to expand...
Click to collapse
If that is actually happening, it's a bug - but not one in android. On both the international sgs3 and the gnex, the phone turns on the notification LED (or turns it on in a "flash" mode) and goes back into deep sleep.
The processor should NOT be needed for handling that LED once its started - it should run on it's own.
Do you think the state of the "always on " really saving battery power than normal mode ?
There is some research that ?
I suppose you are asking: is the Samsung always-on mode better than a simple application that enables some kind of always-on screen ?
My answer is: no, the Samsung's always-on display is not a special power-saving mode. It is as bad as any application that shows a screen all the time.
GSMArena battery rating for S7 Edge without always-on display is 98h, and with the always-on display is 67h. So the always-on display eats a lot of battery.
On the other hand, the LG G2 has a rating of 60h without always-on display, and 50h with always-on display, so LG has a true efficient always-on mode, while Samsung is just like a simple application.
liad1981 said:
Do you think the state of the "always on " really saving battery power than normal mode ?
There is some research that ?
Click to expand...
Click to collapse
It's not saving power as it's still pixels that the battery has to power, especially since the clock and calendar has to move around the screen to prevent burn in on the AMOLED panels. While it doesn't use a lot of power, it still draws from the overall battery life of the device. If you're away from the charger for extended periods of time then i'd suggest not having always on display enabled but if you're able to plug in int the middle of the day if your battery gets low, then it shouldn't be a problem.
Yea. I thought I was going to like the AOD but I don't. For one I can definitely see an increase in battery usage and I also hate how it moves around the display. I know it's nessesary for image burn but while I'm at work, I keep my phone in a stand and every time the clock moves around the screen it makes me glance at it. Just got annoying after a while.
Sent from my SM-G935T using Tapatalk
It eats 3% per 9hrs for me on exynos. Pretty good if you ask me
It's really a question of how much you use your phone as a clock. If you're constantly turning it on just to check the time and turning it right off, then yes, it can save power because turning the whole screen on just to check the time will use more power. Otherwise, if you wear a watch or have another source of time handy (or just don't bother tracking time that closely) and only check the clock occasionally on your phone, then you're probably better off with it off.
Of course personal preference is also a factor, but I'm just talking about the so called "battery saving" logic behind it. It'd have more potential for saving battery if it showed you your notifications like the Moto AOD does.
Cst79 said:
I suppose you are asking: is the Samsung always-on mode better than a simple application that enables some kind of always-on screen ?
My answer is: no, the Samsung's always-on display is not a special power-saving mode. It is as bad as any application that shows a screen all the time.
GSMArena battery rating for S7 Edge without always-on display is 98h, and with the always-on display is 67h. So the always-on display eats a lot of battery.
On the other hand, the LG G2 has a rating of 60h without always-on display, and 50h with always-on display, so LG has a true efficient always-on mode, while Samsung is just like a simple application.
Click to expand...
Click to collapse
you meant LG G5; and yes, they seem to have developed their AOD better; in fact I think that they prepared it for a longer time and Samsung just implemented it empirically (probably using a developer like the one that delivers NoLED)
sure, AOD notification in LG G5 is much smaller and less bright but it gets the job done nonetheless
on the other hand, Samsung should really put a timer for AOD (during night I cannot stop it, just replace it automatically with night clock which is dimmer) and adjust the brightness; they have enough sensors and algorithms in order to achieve that; one forum member suggested that I should just turn the phone with the back side up, but this way I cannot see the led notification in case of missed events during muted....
also, anyone can tell for sure whether AOD or night clock is is more energy efficient???