Something seems to cause the tab to turn itself on, presumably, and drain the battery while it is not in use. At least once, it acted like the "Sleep of death" as described elsewhere, but ultimately, when plugged in, did start. It is not really acceptable to have a charged tab end up dead when you are planning to use it, and potentially nowhere near a power source.
Solutions??
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I'm running Cyanogenmod 7 20120703-TEAM-B-acclaim on my 16GB Nook Tablet.
Occasionally I'll charge my device, power it down and put it away for maybe a week or so. When I try to turn it on again the battery will be completely dead. It seems that either the device is never actually shutting down completely and just draining the battery. The screen looks like it's off and there's no signs that it could still be powered on.
Does anyone else have this issue? Seems to only occur right after I charge it up to 100%. Needless to say it's pretty annoying if I expect my Nook to be fully charged, take it out with me somewhere only to find that it's completely dead and I have no charger with me.
chodashi said:
I'm running Cyanogenmod 7 20120703-TEAM-B-acclaim on my 16GB Nook Tablet.
Occasionally I'll charge my device, power it down and put it away for maybe a week or so. When I try to turn it on again the battery will be completely dead. It seems that either the device is never actually shutting down completely and just draining the battery. The screen looks like it's off and there's no signs that it could still be powered on.
Does anyone else have this issue? Seems to only occur right after I charge it up to 100%. Needless to say it's pretty annoying if I expect my Nook to be fully charged, take it out with me somewhere only to find that it's completely dead and I have no charger with me.
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I have noticed it too.. and sometimes the battery status is not accurate. It shows that it still has 50% but it drains of quickly.
After searching through the bug reporting thread for CM7 it does seem that others are seeing this same issue. Essentially after the device has been charged to 100% if you unplug the charger and then attempt to power off the device it will seem as though it has shut down but if you look at the screen in low light you will notice that it is still on but is all black. This is very bad since its easy to think that the Nook is off when it is actually still on and running down the battery.
I think I will try rebooting the device first before shutting it down after charging to see if I can avoid this issue. Maybe I'll give CM9 a shot.
chodashi said:
... if you look at the screen in low light you will notice that it is still on but is all black.
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Well...Son of a gun!
I've seen that, too. On my Nook (CM7) and my Droid X (Stock-rooted). I've had the Droid so long, I don't know when it started. I guess I'm just in the habit of unplugging them both, checking for messages, and putting them back to sleep.
I have a Nook Tablet (NT) that is rooted and running CM 10.2. All was well until recently when I noticed that once the battery is drained it'll take almost a day for it to turn back on, most of the time being stuck in a loop where the "battery is too low to power on" screen will appear and reappear. Two days my daughter was using it to watch Netflix and the low battery toast appeared, she plugged it in and the NT shut off. Pressing the power button produced nothing until we unplugged it again. I tried using three different cords including a fastboot cord I made for our KFHD, each time it shut right off and won't start back up. I've tried plugging a cord in without any power and it doesn't have any effect, yet the minute any kind of power is introduced....it shuts off and stays off while plugged in.
I searched Google, read almost every sorta relevant post and have searched other forums as well with no luck. Has anyone had this problem? Has anyone solved it? What could be the problem? Any help is appreciated. :crying:
KFlannigan5 said:
I have a Nook Tablet (NT) that is rooted and running CM 10.2. All was well until recently when I noticed that once the battery is drained it'll take almost a day for it to turn back on, most of the time being stuck in a loop where the "battery is too low to power on" screen will appear and reappear. Two days my daughter was using it to watch Netflix and the low battery toast appeared, she plugged it in and the NT shut off. Pressing the power button produced nothing until we unplugged it again. I tried using three different cords including a fastboot cord I made for our KFHD, each time it shut right off and won't start back up. I've tried plugging a cord in without any power and it doesn't have any effect, yet the minute any kind of power is introduced....it shuts off and stays off while plugged in.
I searched Google, read almost every sorta relevant post and have searched other forums as well with no luck. Has anyone had this problem? Has anyone solved it? What could be the problem? Any help is appreciated. :crying:
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This is an old post but I'm wondering if you ever found a solution? My kids nook tablet is doing the same thing. Thanks!
mpry1 said:
This is an old post but I'm wondering if you ever found a solution? My kids nook tablet is doing the same thing. Thanks!
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I have a hunch the battery is starting to fail. It is not a good idea to let the battery get too low, the reason being if it does then the circuity inside tells the nook that the battery is too low to function. When that happens the nook won't power on OR charge quickly. It can only trickle charge, which is why it can take a long long long time to get enough power to turn on.
If this is happening without warning, then it is because the battery indicator calibration is off. If it does flash up a battery warning turn it off right THEN (put it to sleep by pressing the power button once) and plug it in. This should keep it from powering off totally and should charge quickly.
If it keeps happening, it could be the battery needs to be replaced. There are two places to get one that I know of batteryship.com and newpower99.com both seem to come with tools to do the job.
My tablet started doing the odd phantom touches when the battery gets below 23%. I am trying to find a (real) way to calibrate it, but so far no go. But if need be I can just plug it in at 25% or so, as long as it doesn't get any worse. However from what I hear they often do.
Darth Newton said:
I have a hunch the battery is starting to fail. It is not a good idea to let the battery get too low, the reason being if it does then the circuity inside tells the nook that the battery is too low to function. When that happens the nook won't power on OR charge quickly. It can only trickle charge, which is why it can take a long long long time to get enough power to turn on.
If this is happening without warning, then it is because the battery indicator calibration is off. If it does flash up a battery warning turn it off right THEN (put it to sleep by pressing the power button once) and plug it in. This should keep it from powering off totally and should charge quickly.
If it keeps happening, it could be the battery needs to be replaced. There are two places to get one that I know of batteryship.com and newpower99.com both seem to come with tools to do the job.
My tablet started doing the odd phantom touches when the battery gets below 23%. I am trying to find a (real) way to calibrate it, but so far no go. But if need be I can just plug it in at 25% or so, as long as it doesn't get any worse. However from what I hear they often do.
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The problem you experienced with NT CM flaky battery reading and with NT going beserk at low battery reading was discussed at http://forum.xda-developers.com/showthread.php?t=2551512.
FWIW there are some battery-calibration apps but I have not tried them.
I'm starting to think it's a hardware issue. I have replaced the battery twice and did a clean install of liquid smooth and it still shuts off completely when it gets plugged in. It will fully charge while plugged in but it will not turn on at all while power is going to the battery through USB. Once unplugged it will boot normally. Really strange.
digixmax said:
The problem you experienced with NT CM flaky battery reading and with NT going beserk at low battery reading was discussed at http://forum.xda-developers.com/showthread.php?t=2551512.
FWIW there are some battery-calibration apps but I have not tried them.
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I will check out the thread, but I am running the B&N stock 4.3 currently (and rooted).
Piece of cake. Although the replacement is a bit lower MhA it's a lot better than the old battery
pepi4 said:
Piece of cake.
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That's nice to know. Is there a step-by-step guide for it?
Although the replacement is a bit lower MhA it's a lot better than the old battery
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Which replacement battery did you get?
http://www.batteryship.com/htmlos/htmlos.cgi/batteryship/catalog.html
You even get free tools and they are not junk
How to that I used ... Hard to get pass the women robot talking LOL
https://www.youtube.com/watch?v=3F0glSyvj2s
At first I wondered about this being a smaller battery if it would run down fast. It doesn't !!! Works very well !!!
I changed out my battery with one from the above site, but now every time I plug a USB cable in it to charge it immediately shuts off. Anyone have any ideas what could cause this? Wonder if I got a bad battery..
mpry1 said:
I changed out my battery with one from the above site, but now every time I plug a USB cable in it to charge it immediately shuts off. Anyone have any ideas what could cause this? Wonder if I got a bad battery..
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That could be a bad/shorted battery. Mine is still going strong! I would try and reverse everything and start over. When I did mine my vol controls didn't work. Didn't have the connector snapped down good enough
I was looking at this one (still am actually although the one you got is cheaper):
https://www.youtube.com/watch?v=3F0glSyvj2s
http://www.newpower99.com/Barnes_No...cement_Kit_p/barnes and noble nook tablet.htm
I am still trying to see if there is a setting that somehow caused my NT to freak out when the battery reaches 23%
But I have this bad feeling I will need to purchase a new battery. By the way, if the nook just shuts off watch the screen closely it usually says "battery too low" for a second before switching off. And if that is the case after plugging it in, you likely have a bad one and I would call the company to get a replacement.
I have been looking around and the only new replacement batteries I find are the two mentioned and both are 3200mh rather than 4000 of the original. How is your battery life since you changed it? Seems like it should be 1/4th what we had when new (or close to it). Or don't you really notice at this point? I have thought about ebay but then they are used batteries and you have no idea how many cycles are left, and likely hold 1/4th less anyway due to their age. *shurgs* not sure which way to go. As of now I am still having a "freak out" situation at about 23% (roughly). If it doesn't get any worse I can live with that, but from what I have read it will only get worse. :/
Anyone know of a battery app I could use to "adjust" the shut down threashold? I have one that will alert me to whatever I set so if I am not watching it will warn me so that will work if I don't have one that will actually shut it down. I know the "calibrating" apps don't do anything except delete the one file that is only usage stats from the last time it was plugged in, so I don't think there is a real way to calibrate it.
Update:
And on another note with the "spare parts" app the 'battery history' option errors with "the application spare parts ) process.com.andriod.spare_parts_ has topped unexpectedly, please try again." Is this normal? It is version 2.3.7. NT Hidden Settings app application settings/battery use works fine and shows the amount of everything that has used the battery since it was last plugged in/charged. Could this error be a sign of the problem with the phantom touches and inaccurate battery display? And if it is a sign of something broken, what and how do I fix it?
I received a replacement battery and it is doing the same thing, so somehow during the battery switch something got wonkey with my nook. It charges OK just powers off to do it. Since it's used by my kids now it's not essential to be on while charging, but I'd still like to figure this out.
mpry1 said:
I received a replacement battery and it is doing the same thing, so somehow during the battery switch something got wonkey with my nook. It charges OK just powers off to do it. Since it's used by my kids now it's not essential to be on while charging, but I'd still like to figure this out.
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Which battery did you get? And very strange it shuts off when you plug it in. Never seen or heard of that before. It should boot up if off. Or do you mean the screen goes off/goes to sleep but not full shut down when you plug it in? If it is going to sleep, that is likely a app or setting that is doing it. Not sure which but you might want to check any battery apps you have or your settings. It would also depend on which ROM you are running, stock (which I am running) or something else.
Both batteries were the one mentioned in the original post. It doesn't go to sleep when I plug it in, it completely shuts off like no power at all. It will not boot up until I unplug the USB from a power source, although it will fully charge while it is plugged in. I've never seen anything like this and I've been messing with android since my original moto droid 1.
mpry1 said:
Both batteries were the one mentioned in the original post. It doesn't go to sleep when I plug it in, it completely shuts off like no power at all. It will not boot up until I unplug the USB from a power source, although it will fully charge while it is plugged in. I've never seen anything like this and I've been messing with android since my original moto droid 1.
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Very strange indeed. The only thing I would say to do is turn the USB debugging on and off a few times, to see if that makes a difference. It shouldn't but if you tried two different brands of battery, sounds like it is the hardware on the nook. But that is one really weird bug.
Something interesting I discovered. While I did get a new battery, I decided to do some experimenting. Researching this issue a lot of people said you need to delete the "battery file". There even use to be a option in CWM to remove this file. The thing is the file is deleted every time you plug in the device. So that is not going to help.
Further digging found that some devices you need to plug them in and let them charge. Or run them down for say 20-30 minutes without sleeping then plug in and let it charge fully. For some devices this "resets" the battery management system.
What I found in my tests is the battery gets harder to charge with age. While the little n light might show green, it is likely only 80% charge sometimes 90%. And it takes awhile for it to really get to 100%. What I did was let it charge up to that full 100% which may take hours. I got a nice battery app that alerts me when it gets below 25% after that things can get crazy with phantom touches. I also have it set to give a audio alert when it reaches 100%, this way I know when it is fully charged.
I know the charge it fully (when it actually says 100% and I get a audio alert when this happens) before 50% or so has helped a lot. At one point the phantom touches started to happen at higher than 25% reaching almost 35%, last time I did a test to see when phantom touches started was 17% so it is much better. Not to the level when I bought the device, but still very useable.
I will put in the new battery sometime I am sure as it is taking longer and longer to reach the full 100% (but that is normal for lithium ion batteries.) it is certainly useable in this state and the phantom touch issue is not getting worse. I think the biggest issue was charging it until the n light went green and as the battery ages, the battery manger gets thrown off for some reason and charging to the true 100% helps recalibrate it.
Therefore I would run it for 20 minutes without letting it go to sleep, then charge until it is really full (usually leave it plugged in overnight and that should do it). Do this a few times and see if the battery is better.
Oh another thing I did. Power it off fully (hold down power button then tap shutoff) then plug it in to charge. Let the charger wake, reboot, and charge the device. This I also think helps recalibrate the system. Although I never did it when I ran it for 20 minutes then charged to full. But I am sure powering off then plugging in to charge at times made a difference as well.
I've just bought one of these batteries, hoping it'll be better than my old one.
It should be. It won't be quite as it was when it was new, as these new batteries don't have the capacity compared to the originals that B&N installed (perhaps a hour or two less runtime compared to the originals). But it will be better than a well used Nook Tablet battery that is fading fast.
I don't know if I need a new battery just yet, but I am experiencing the issue of the power being killed when plugging the Nook into the wall or USB (which means transfers over an SD card, which is a pain). I only spent $5 to get it and I can see why someone might have thought it was broken, since they probably plugged it in to charge it but it wouldn't turn on while plugged in. It does charge while off, however.
What I've noticed in my experience is that if I turn it on, I can plug it in while the Nook is on the N screen, and then it'll go to the Cynoboot screen still plugged in, but the second it goes to boot the OS it turns off.
Anyone have any ideas on why it would allow itself to be on until it tries to boot to the OS?
So I've run into an bizarre problem today, one that I've never seen before.
My mum's S2 was having problems charging last night with the screen not showing the charge animation. So we decided to charge my S2's battery in my phone, then put it into her phone. It worked, but the battery was draining really quickly. I turned off the phone, decided to charge her battery in MY phone. Then I put her original battery back into her phone. But even though I haven't turned the phone on, it starts heating up within minutes! So anyway, I've tried plugging her phone into the charger again, but it seems like something is taking up the battery to quickly to charge it - even while the phone is completely off! I've even checked the processes running when the phone was on, but there seems to be nothing there causing the drain.
So anyway the next thing I'm going to try is a factory reset (this is currently running on the stock ROM), and then attempting the flash another ROM to see if that will work.
Also another thing to note - while i was backing up her phone, I had it plugged in to my computer and after leaving it for a bit to do some other stuff, I hear this high pitched beep coming from the phone saying something like "Battery temperature too high. Charging stopped." Really really strange.
Anyway, if anyone has run into this problem before or has any other ideas, it would be much appreciated. Thanks.
Hi XDA, wondering if anyone can help me out with an annoying problem.
I have a Galaxy Note Edge. Within about 8 months I've been experiencing random shut-downs.
Thinking it was battery related, I started there. The problem persisted. Thinking it was perhaps a wake-lock issue, I did a factory reset including cache clear, still have the problem.
Basically when I'm using the device it will randomly shut down. I could be checking my email or taking a pic, out of nowhere poof, off it goes. Battery will still say an arbitrary amount, today it was at 64%. But when I plugged it in, with the device off it said 0%.
I notice this happens often. If I charge my phone overnight it will stop charging at maybe 70%. Poor/wrong calibration?
Here's the thing though, even if the phone says 0% after shutting down, if I try to turn it on it will go into a boot loop for..well infinitely. Hours. So there's clearly still power. If I try to use my battery bank to charge it, it still won't get past the boot loop until I connect it to at least a 2.1amp charger.
I'm at a loss. There doesn't seem to be any obvious hardware issues. I've been scraping the interwebs for a good year but nothing has helped and I just live with it.
Running Android 5.1.1, stock, no dumb unoptimized apps. Someone please save my sanity? Cheers! E>