The bottom right side of my NT heats up during normal use. Also the battery seems to discharge really fast? Is this normal or am I being paranoid. My previous NT overheated really bad once so I excahnged it.
I have been using it for about 30 minutes now after a full charge and its at 90% charge left.
http:/forum.xda.developers.com/showthread.php?t=1438975
Sent from my BNTV250 using xda premium
yes,I got the some problem
I can feel it obviously
Is it possible you have a run away app that's eating up CPU cycles? Check your battery history and see if something sticks out.
Merrell
Sent from my soon to be even more awesome NOOK Tablet. Thank you Devs for all you do!
Mine is not heating up.
:/ I think ill exchange it again
Sent from my BNTV250 using xda premium
What do you use to check battary history?
Sent from my BNTV250 using xda premium
I have noticed the battery getting warm, but it's usually when I've been browsing for a while. It doesn't feel super hot (like my laptop does) but it's warm. I haven't noticed terrible battery life. If I let it sit idle, it goes to about 50% in 8 hours time. If this is an issue, I want to know about it. I'll have to restore it to factory settings and whatnot, but I don't want a faulty device.
GeekyMaestro said:
I have noticed the battery getting warm, but it's usually when I've been browsing for a while. It doesn't feel super hot (like my laptop does) but it's warm. I haven't noticed terrible battery life. If I let it sit idle, it goes to about 50% in 8 hours time. If this is an issue, I want to know about it. I'll have to restore it to factory settings and whatnot, but I don't want a faulty device.
Click to expand...
Click to collapse
No its normal and is because deep sleep doesn't work, hopefully once CM9 gets released deep sleep be fixed.
~ Veronica
There were a number of posts from people who were seeing high battery temps after skipping the OOBE. Did those of you having problems in this thread skip OOBE, uninstall B&N apps yourself, and/or use compromise the B&N applications/services in any way?
Just got mine. I noticed that it does get warm but not too warm to cause panic. Mobile phones start getting warm too if you've been browsing over wifi for a while. Are most people running frosty nooks? Should it not feel even a little warm?
Or maybe you can rate the amount of heat, say from 1-10 how hot does yours get?
My rooted nook gets hot while playing Exitium for half an hour, but not when it's idling.
Not I
I use my Nook tablet quite extensively and I don't seem to feel an unusual amount of heat coming from it. 30 minutes of use and down to 90% is not unusual either. Otherwise, I would have to agree that there is probably an app running your CPU full tilt. Probably not your battery that is heating up either, if you look at the pictures of these pulled apart, you would see that if the battery was what was getting warm, it would be almost the whole back of your NT.
landonotis said:
I use my Nook tablet quite extensively and I don't seem to feel an unusual amount of heat coming from it. 30 minutes of use and down to 90% is not unusual either. Otherwise, I would have to agree that there is probably an app running your CPU full tilt. Probably not your battery that is heating up either, if you look at the pictures of these pulled apart, you would see that if the battery was what was getting warm, it would be almost the whole back of your NT.
Click to expand...
Click to collapse
I was actually thinking the same thing. I think the warmth I'm feeling is actually coming from the wifi adapter inside, which would make sense because I notice it when I'm browsing the web for a long time or downloading a large file.
No issues with heating up here.
~K2~ sent from my Bionic using Tapatalk.
Only time mine heats up is if I have been streaming from my pc to the tablet via dlna server to watch videos which would either mean its the wifi chip or the cpu heating up.
GeekyMaestro said:
If I let it sit idle, it goes to about 50% in 8 hours time.
Click to expand...
Click to collapse
Just to clarify, you're saying if it is sitting idle - not being used, and the screen is off - for eight hours, it will drop 50% of the battery? I just picked mine up, and after almost 11 hours sitting idle it only lost 5% of the battery. It sounds like you might have an app causing a wakelock.
No heat in mine and it does retain charge while sitting with screen off. I rarely turn it off and charge every day or two depending on use. I read somewhere it is not good to let the battery go completely dead.
Not sure what OOBE is but I have been turning it off to avoid it from overheating really bad like my first book.
Not really sure how to scale it but I would guess maybe a 5 if a 10 is where it wouldn't turn on and a 1 is its cold to the touch.
I used Indrects method.
How would I check to see if a app is doing something like that? Tgps?
I guess I could just leave it on for a day then check to see how the battary is after like 15 - 20 hours.
Sent from my BNTV250 using xda premium
I skipped OOBE, I used NARS to root. I don't have this problem.
Never heated up for me, not once.
Overall I'm more than pleased with battery life. Watched 40 mins of youtube 720p video with jetvd yesterday (over wifi) and battery went down only by 10%. My SGS2 would've lost like 60%.
Related
I've been noticing a good amount of heat up by the camera during moderate use. I thought this was a CM7 problem since I had been on it since day 1, but I am now on UnNamed and the problem persists. After some googling it does seem that many other people are having this problem. Not on WIFI, and not in a poor signal area either. Just wanted to see if anyone had any leads as to the cause. What is a good app for monitoring CPU usage by app?
Yes, it may get a little hot but it isn't something to worry about as far as I know. I've gamed for three hours straight and not had any problems except for a low battery life!
yeah mine gets hot near the camera during use but i dont think its a problem
I use a battery monitor.
From what I've read, it will shut off for protection. I've heard that as long as it doesn't ever get too much above 130 F, you should be OK.
Now if it constantly stays high, there may be a problem. Mine stays around 80 F most of the time and the highest I've ever seen is 99 F but i don't game much or use my camera. One thing you don't wanna do is charge it while hd gaming or charge it in a hot car. My infuse reached 146 F one time doing that.
Sent from my SAMSUNG-SGH-I777 using XDA App
I only notice my battery gets hot when im charging while playing a game or sometimes watching a movie
Sent from my SAMSUNG-SGH-I777 using XDA App
Somehow 'Words with Friends' caused my phone to really warm up a lot. More so than I've seen with any other situation and on numerous occasions. Luckily I suck at that game and uninstalled it...
Mine is cool unless i put a thick case then itll burn up
Sent from my SAMSUNG-SGH-I777 using XDA App
When I first got CM7 running on this thing, I tore through the market installing the apps I'm used to. When I was finished, I noticed that it was indeed a bit warm in the area you described. It wasn't hot enough to cause discomfort, just warm enough to note.
I notice when my phone gets hot in that area when it is around 30% remaining and I charge it. I also notice that when it is charging, it really isn't charging but battery is draining. When I got home and charged it at 30%, I left it sitting there for about 30 minutes and when I checked the phone again, it was at 25%. GPS and wifi was turned off. I decided to power down the phone and remove the battery for 5 minutes. I started working fine after that. I noticed it getting hot again today when I plugged it in to charge at 40% but this time it actually was charging. I am running stock rom but rooted. Should this be a concern?
Seems as though a lot of people are having a variation of this problem. Hopefully it is addressed soon.
The CPU will always get a bit warm if it's running.
If it's getting very hot when the screen is off, you've probably got some background task wakelocking the phone.
My phone's screen gets pretty hot when I run web videos/flash videos on HSPA.
Runs a tiny bit warm when i'm running pristine 3D Tegra games on it...otherwise no.
Lol not sure what happened here.
I left my phone off charge to take a shower at 60%, came out and it was 20%?
Im on MIUI Rom 1.11.11
Is it just bad calibration or something?
CollegeProfesor said:
Lol not sure what happened here.
I left my phone off charge to take a shower at 60%, came out and it was 20%?
Im on MIUI Rom 1.11.11
Is it just bad calibration or something?
Click to expand...
Click to collapse
Did you also see a significant drop in raw battery voltage?
Most likely the fuel gauge just glitched or reset. 40% in 20 minutes = 2 amperes drain, our device simply can't pull THAT much current, not even close.
Does if really equate to that much? I have seen a few cross ROM battery complaints ND I'm pointing my finger at the Facebook app
Sent from my SGH-I777 using XDA App
Fastest ive had mine drain down is when I left PocketCloud logged into a VNC session. It will run it down close to that fast.
Ya, Id take it off teh charger, reboot and see what it says after that.
When I was running CyanogenMod 7 this would happen all of the time to me. My battery would be at 98% and then suddenly after about 5 min, it would read 50%. I'm not really sure what caused this, but CyanogenMod 7 is the only ROM that I have had this issue with.
I'm now running Miui and I haven't ran across this issue yet.
I did read that calibrating your battery should solve this issue though.
Possibly similar to what a few of us encountered here: http://forum.xda-developers.com/showthread.php?t=1325164
It had to have been pretty hot to draw that much current that quickly. It's a 1650mAh battery. It will provide 1.65A for an hour from fully-charged, until it is discharged. You lost 40% in, say 15 minutes. That's 160% in an hour. Or about a 2.6A rate. Nearly 10 Watts. Sammy spec's a 9 hour talk time rating on 3G. By comparison, this means normal battery usage during a phone call is about 0.18A. Think about how warm the phone gets during a call, and compare that to how warm it'd have to get if you were sucking juice at 14x the normal rate.
If it wasn't really hot, IMO, either there's something wrong with the battery or your issue is "cockpit error".
Minds did the same thing today. I think it was from a old theme I applied.
After the theme was converted my phone started acting funny.
The screen started to lag
Phone got extremely hot without even being touched, just laying on my bed.
Phone kept rebooting
I didn't have any of these issues until I added the theme
Sent from my GT-I9100 using xda premium
craigbailey1986 said:
Minds did the same thing today. I think it was from a old theme I applied.
After the theme was converted my phone started acting funny.
The screen started to lag
Phone got extremely hot without even being touched, just laying on my bed.
Phone kept rebooting
I didn't have any of these issues until I added the theme
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
It did happen to me too, I just added a new theme (GOlauncher app) and the phone has started to get hot without using it, and the battery goes down very fast.
There's been mixed reviews of battery life in the CM7 rom for the NT as far as battery life is concerned, some are saying they've run it with moderate use since the day it was released and only used about 20 - 30% so far while others are saying battery life is terrible.
SO I thought I'd start a little poll to see what people are getting, I'm guess the battery drain is due to various software being installed so not really the OS's fault.
For me the Battery life is greatly improved over stock, for instance I took it of charge 10 hours ago, it's admittedly only been used for a few minute son and of during those 10 hours but it's lost the grand total of 4% battery in those 10 hours which I consider pretty good really.
Soi lets here what everyone thinks, remember to vote !
Battery life - improved
This is my third day on the CM7 alpha - battery life has been much better than before. Considering I have probably spent more time with the NT turned on over the last couple of days than I normally would, the battery used is less than normal. Previously I would use about 60% of my battery per day. Now I am using 30%-40% - and that includes downloading and configuring many, many applications.
I really think its much better than stock in my cm7 nt
No problems here. Take off charge around 6am and return to charge around 10pm with usually more than 80% left depending on usage.
Sent from my Droid Incredible ICS 4.0.3
I don't think mine has been on a charger for the last 16 hours or so, light usage, wireless has been off most of the time, and I use a task killer to kill things before I turn off the screen. Didn't power off, just put to sleep last night before bed, it's still at like 85%.
So far, it seems better than stock battery life to me, or at least no worse, and I have a lot more apps installed now.
Edit: Internal version.
It might help if folks said if they were running off SD card or internal memory when looking at battery life - I have the impression that the SD card reader on the NT is something of a battery vampire.
Internal CM7 since it was released.
Live wallpaper on Golauncher
wifi set to screen off-off
Brightness at about 60-65%
It's been off of charge for 4 hours 21 minutes this morning and I'm at 96%
Dolphin HD and Gmail have been running all that time.
Hasn't been out for long enough to really tell but my impression is that it's about the same as stock.
screen.
10char
dang69 said:
screen.
10char
Click to expand...
Click to collapse
Odd. Is that your aforementioned case with lots of standby? On my Vibrant, the Screen bar generally dwarfs all other bars even with significant standby time. Granted that's an apples-to-oranges comparison... (I don't have CM7 on my Nook Tablet yet - can't do a comparison between stock B&N and my Vibrant at the moment.)
PlacidCat said:
Odd. Is that your aforementioned case with lots of standby? On my Vibrant, the Screen bar generally dwarfs all other bars even with significant standby time. Granted that's an apples-to-oranges comparison... (I don't have CM7 on my Nook Tablet yet - can't do a comparison between stock B&N and my Vibrant at the moment.)
Click to expand...
Click to collapse
Yes. I don't really know what "standby" means. This use was about 40 minutes of checking email, weather news and etc followed by About 2 hours with the screen off then an hour of dinking around. Watched all the superbowl commercials, staying up on XDA and other forums with Tapatalk and learning things in CM7. I'd describe this as light use bordering on moderate.
dang69 said:
Yes. I don't really know what "standby" means. This use was about 40 minutes of checking email, weather news and etc followed by About 2 hours with the screen off then an hour of dinking around. Watched all the superbowl commercials, staying up on XDA and other forums with Tapatalk and learning things in CM7. I'd describe this as light use bordering on moderate.
Click to expand...
Click to collapse
Watching video or playing games can be quite intensive. Flash is probably the most intensive for video playing.
Keep a good eye in it over the next few days then cone back and post if you've noticed anything that makes it better or worse with battery life
Last I checked mine was going on 18 hours and at about 40%
One thing I noticed is that the charger for my Moto phone doesn't seem to charge the nook as well as the nook charger. I'll have to look at the nook wall wart and see if it's pumping out more juice. For reference the Moto charger is only 4.33W (5.1V at 850mA).
The nook charger is a 1.8amp charger
CelticWebSolutions said:
Watching video or playing games can be quite intensive. Flash is probably the most intensive for video playing.
Keep a good eye in it over the next few days then cone back and post if you've noticed anything that makes it better or worse with battery life
Click to expand...
Click to collapse
Will do.
10char
RadicalAns said:
Last I checked mine was going on 18 hours and at about 40%
One thing I noticed is that the charger for my Moto phone doesn't seem to charge the nook as well as the nook charger. I'll have to look at the nook wall wart and see if it's pumping out more juice. For reference the Moto charger is only 4.33W (5.1V at 850mA).
Click to expand...
Click to collapse
What kind of usage? Low, high, moderate? Just curious because my wife and I do a decent amount of Netflix (1-2 hours a day) and I don't have to charge more than every 3 days. This is with 1.4.0 rooted. I've been exceptionally pleased with that - power consumption in standby seems to be incredibly miserly with stock (most likely due to WiFi being turned off when the system is in standby).
Montisaquadeis said:
The nook charger is a 1.8amp charger
Click to expand...
Click to collapse
Ahh. That explains a lot. Looks like I should pack that in my bag rather than my Moto charger. I wonder if it'll charge my phone faster?
On the subject of the battery, I posted about an issue I encountered last night, here:
http://forum.xda-developers.com/showthread.php?p=22261812
Additional information: At the time, I was fooling around with a playstation emulator, which i'm fairly sure constitutes a heavy drain on system resources. Battery drain seemed appropriate for the level of activity.
Sent from my SAMSUNG-SGH-I997 using Tapatalk
Internal install, wifi off during sleep. Figure the end of the graph was about 19-20 hours or so of sleep. Before that was a constant internet, twitter, WWF session. Screen brightness is in the bottom 1/3rd of the slider.
I am going to beat the hell out of it tonight and will see how the battery holds up. Looks pretty solid just sleeping, so we will see what it can do under load.
So found that if your wireless location is turned on, it will wake your NT about every 5 minuetes. That's not a good thing
If anyone is seeing drains, i suggest using betterbatterystats to help track down the culprit.
10 char this
So Im getting horrible battery life with this now. Not really sure whats going on. I use to be able to leave my nook on standby for days and last night it was at about 30% woke up this morning and it was completely dead...
Well having bad luck with my new TP. Seemed that .21 update caused battery drain on my TP. Today I only used the TP for a total of 1 hour for sending email, few web pages and battery is at 14%. This no good for travel or to use on the road. It has been on battery for 10 hours, but out of the 10, only 1 hour has actually been on.
I do notice a few things. Even though screen is off, the right side top feels warm to the touch as if when you use the tablet. Now I am thinking something is running none stop. Any good apps to check this?
Also notice that even though I am in the home screen, I see the arrows in the wireless icon showing as if data is always going up and down. So this could explain the massive battery drain. My HTC Jetstream only does this when opening web pages or sending email, which the TP will do but keeps flashing as if is always sending something. I have restored 3 times already. Now I will restore and not install anything including my account to see if it is the TP that is defective.
Anyone seeing this with your TP? I am ready to take this tablet back.
Sent from my Transformer Prime TF201 using xda premium
could be .21 or could be battery is just bad. What does usage look like?
I am not having that issue at all. I unplugged mine around 7:30am on the 2nd and it is now 12:05am on the 4th and I am still at 36% with performance mode on most of the time. A lot of time has been spent playing Asphalt 6 even. Plus, my normal web browsing and just messing around. I do have a dock so I know that attributes to some of my excellent battery life but not an extreme amount. It is only said to extend it by 4 hours of use.
Sent from my Transformer Prime TF201 using xda premium
neo1738 said:
could be .21 or could be battery is just bad. What does usage look like?
Click to expand...
Click to collapse
Seems like something else is causing the battery drain. Like I mentioned, the top right side back, you can actually feel it sort of warm, compared to the left or the complete back. I know that the back feels warm after you use it for a while, but shouldn't feel warm after sitting with screen off.
Too bad only used for about an 1 hour a few minutes today and just shut off on me as I was responding.
Id use CPU spy see if that shows anything weord but defo sounds as if a app is eating all ya battery up if u find nothing try flashing firmware next one down see what happens or couldbt u try a different kernel
Sent from my LT26i using xda premium
Mine doesn't get warm and I still get about 6-8 hours as opposed to the 10-12 I got before.
I've been noticing that Maps/GPS always seems to be running even when I have GPS disabled.
So my battery has been running pretty decently throughout the day. Never have to charge it. Then I went to bed last night and decided not to put the charger in to treat it overnight. Starting at 23% but when I woke up seven hours later it was at 7%. I ran the code for wakelocks and it seemed to work, so I'm not sure what's up.
Sent from my LG-E970 using xda app-developers app
Wow that's nasty. I'm hoping that this will be solved after a full wipe and some fresh custom firmware
Sent from my LG-E970 using xda premium
Not many people seem to be having this issue so I'm just wondering if anyone took any extra steps or of I'm just unlucky haha.
Sent from my LG-E970 using xda app-developers app
Im still having issues but not that bad. Im still around 40-45%.
It's pretty annoying..
Well I let my phone further discharge then plugged it in and went back to bed haha.
Woke up to a fully charged phone about half an hour ago and unplugged it. Still at 100% with heavy texting and XDA app..
Doesn't make sense, but we'll see.
I just charged to 100% and wiped battery stats cleared caches and rebooted. Gonna leave my phone alone for an hour then use it for an hour and see how shes doing.
Haha, she. That's cute.
Let me know how it works, I might do that if good results.
Has to be a she, i dont think i could love a man this deeply.
Oh you could! You gotta feel it deep down.
I give up.. its basically exactly the same. No matter what i do. Alarm manager seems to cause the most partial wake locks for me i think.. unless i have touch sounds on then its AudioOut_1 causing the most... im just gonna sit back and wait for aosp a magical fix everything button to show up on my screen.
Edit: I dont know what im doing anyway. Ill just save it for the pro's.
All of a sudden my phone has been deep sleeping.
I haven't really touched it since I unplugged it which was nearly an hour ago and it's still at 100%.
Most I did was take 2 pictures and send a couple text messages and turn my phone to silent.
But the OS is still marked as 55%. F.uck logic?
Edit: Scratch that, phone suddenly reading 97%. What do?
I dunno. I just no im not happy with my brand new phone not lasting a day off the charger. I only had it stock for an hour or two so im probably going to flash stock over the weekend and see how it runs for a couple days.
How heavy is your use? I'm almost convinced your drain is worse than mine.
battery
Murasakiii said:
All of a sudden my phone has been deep sleeping.
I haven't really touched it since I unplugged it which was nearly an hour ago and it's still at 100%.
Most I did was take 2 pictures and send a couple text messages and turn my phone to silent.
But the OS is still marked as 55%. F.uck logic?
Edit: Scratch that, phone suddenly reading 97%. What do?
Click to expand...
Click to collapse
The LG interface has a glitch with reading battery life. It bounces around quite a bit above 90%. It only gets exact at levels below 90%.
That's fine, but the problem remains.
It's not -horrid- drain, but my phone has been running on battery for the past 3 hours with little interaction and it's at 80%.
I don't know what could still be dropping it. I'm not expecting a perfect battery especially when I've had it for a few days, just doesn't make sense.
Freeze some apps that run in the background or simply delete them.
Sent from my Incredible 2 using xda app-developers app
I haven't bought TB yet. Makes it a little hard to freeze.
Besides, it's the Android OS that's draining it. It sticks to 51-55% no matter what.
Keep Awake is the only thing that's constantly running.
I thought 40-50% is normal for Android OS?
Lawbreaker on another forum said.
"And remember, it is a percentage. The fewer other tasks you perform with the phone, the higher percentage of usage the Android O/S will be.
Basically, if your usage was 25% Display, 15% GPS, 10% Sync, 50% Android OS, and then you stopped using the display, turned off GPS, and killed the sync, your usage would be 100% android OS because you removed everything else using the battery."
http://forums.androidcentral.com/sp...ndroid-os-consuming-most-my-battery-life.html
To see what is keeping your phone from going into deep sleep, look for wake locks. I use better battery stats to monitor my phone.
gsrrr said:
I thought 40-50% is normal for Android OS?
Lawbreaker on another forum said.
"And remember, it is a percentage. The fewer other tasks you perform with the phone, the higher percentage of usage the Android O/S will be.
Basically, if your usage was 25% Display, 15% GPS, 10% Sync, 50% Android OS, and then you stopped using the display, turned off GPS, and killed the sync, your usage would be 100% android OS because you removed everything else using the battery."
http://forums.androidcentral.com/sp...ndroid-os-consuming-most-my-battery-life.html
To see what is keeping your phone from going into deep sleep, look for wake locks. I use better battery stats to monitor my phone.
Click to expand...
Click to collapse
I guess this makes sense considering everything else is really low. My brightness was at 0% during work so I wouldn't get caught texting haha.
The Keep Awake has shown improvement, on for 1h 44m after being unplugged for 5 hours. But near 30% drain seems to be a lot when barely touched.
I'm not concerned with the percentage number as much as I am the keep awake time. I believe if that gets under control, my battery live will be better. I'm not unhappy with going a whole day without charging, but I would like to see it get the best possible battery life.
Sent from my LG-E970 using xda premium