Hi all,
I originally posted by issues here: http://forum.xda-developers.com/showthread.php?t=2380191
Now, however, I believe it is a battery stats issue. Basically, my KF7HD was shutting down randomly...but only when on battery power. It started doing it a couple of weeks ago, but since I had purchased a new android tablet, I was only using my KF for amazon movies. Anyway, I had it rooted and a different launcher on it and thought I might have some software issues, so I installed a 2nd bootloader and Kinology. The issue was still happening.
Well today I thought to try something. I was able to use my fire for about 15 minutes or so and the battery stayed at 100%. The screen was on as I read some books. I decided to test some video so I watched about 10 minutes of an amazon video stayed at 100% for quite a while and then finally dropped to 99%. I'm downloading an amazon video now and the batter is at 96%. So after about 45 minutes or so of constant usage, the battery is at 96%. That doesn't seem quite normal.
I'm wondering if the stats are off completely, so when it says the kindle is at 50% battery, it is much, much, lower and simply turns off. I notice the random shut downs when the battery shows 55% or less. The lower it is, the worse the problem it seems.
Is there anything I can do to fix this, or to make sure this is what is happening? Thanks!
Dave
Related
I already took care of phone and telephony app but it says most of my battery life was killed by phone idle. How do I get rid of that?
buffnutz1 said:
I already took care of phone and telephony app but it says most of my battery life was killed by phone idle. How do I get rid of that?
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Click to collapse
You really don't need to get rid of these apps, without a radio they are not being used.
Read through this thread, and the link in this post: http://forum.xda-developers.com/showpost.php?p=10323728&postcount=141
I'm not convinced
When I first got my NC, my first charge lasted 8 hours. After a few days of recharging, this crept up to ~10 hours. After rooting and renaming the phone and telephone files, battery life went to 4-5 days!
I left my charging cable at home and plugged it in at night once a week or so.
Now that I'm on HC, I'm back to carrying the cable with me at all times.
I did manage to find a power saver app with a 'Tablet' mode that shuts everything down but WiFi, and this seems to have improved things a little bit, but there is a very distinct difference between the battery life I had on Eclair with those 2 APKs renamed and what I'm now experiencing on HC.
If I'm not mistaken, phone idle is what happens when your screen locks. I would expect it to be there.
with nookie 0.6.8 running on sd cardd i only get about 4 days with very light use.
MNMichael said:
When I first got my NC, my first charge lasted 8 hours. After a few days of recharging, this crept up to ~10 hours. After rooting and renaming the phone and telephone files, battery life went to 4-5 days!...
Click to expand...
Click to collapse
A real Android newb here - does teh NC suffer battery drain for its non-present phone connection? If so, how do you disable? Thanks
Currently neither Froyo, Gingerbread, or Honeycomb go into full sleep mode because of sleep death, Eclaire does. Hence, it's better battery life. It's what delayed CM7 for such a long time, and in the end they couldn't solve it. If I remember right it's a driver issue that should be solved once B&N releases their own Foyo update, and we get our hands on some real froyo drivers instead of making/modding our own.
I'm running CM7 r17 and I loose about 14% battery overnight(12+ hours). With elcaire, I saw something more like 4% loss. That's with wireless turned off of course.
I ran HC for a couple days (I like CM7 more) and saw the same battery-life problems, so don't think it's just you.
MNMichael said:
When I first got my NC, my first charge lasted 8 hours. After a few days of recharging, this crept up to ~10 hours. After rooting and renaming the phone and telephone files, battery life went to 4-5 days!
I left my charging cable at home and plugged it in at night once a week or so.
Now that I'm on HC, I'm back to carrying the cable with me at all times.
I did manage to find a power saver app with a 'Tablet' mode that shuts everything down but WiFi, and this seems to have improved things a little bit, but there is a very distinct difference between the battery life I had on Eclair with those 2 APKs renamed and what I'm now experiencing on HC.
If I'm not mistaken, phone idle is what happens when your screen locks. I would expect it to be there.
Click to expand...
Click to collapse
Wait, so you're using HC? The battery life on HC is horrible.. I thought you were referring to stock ROM...
Meh... Pointless discussion.
MNMichael said:
When I first got my NC, my first charge lasted 8 hours. After a few days of recharging, this crept up to ~10 hours. After rooting and renaming the phone and telephone files, battery life went to 4-5 days!
I left my charging cable at home and plugged it in at night once a week or so.
Click to expand...
Click to collapse
Three things:
1) I'm not sure why you keep referencing that you don't have your charging cable (this thread and the other). Is it supposed to indicate that you charge less frequently, therefore you have better battery life? You also don't indicate if your use/behavior was the same or different.
2) Your "measurement" points are:
- Brand new
- Post root with renamed files
Too many variables changed. You should have "tested" post root with files NOT renamed and then test post root with files renamed.
3) Brand new batteries do not always have the best battery life. After a few charge cycles, they tend to increase (some times exponentially).
It's generally accepted on this board that changing the files do not correlate to better battery life. However, it is your opinion and your Nook.
My battery charge fluctuates, sometimes it goes up from 5% to 35%, sometimes it seems depleted (2%) and if I check in 15 minutes it's 10% and so on.
I'm running CM 7.2 and previously Darky ROM 10.2. Since this started happening I've used a couple of the top-rated battery calibration tools, but to no avail.
Any ideas? Is it a hardware problem? Or a driver problem with the custom ROMs? Or something else?
Try the following If you haven't already.
Charge phone until it says it's full.
Discharge until it turns off. Try to turn it on to make sure it's absolutely flat.
Do this again.
Then charge it periodically so that you keep the percentage between the 20 and 90 approximately, and see if it improves.
Repeat first steps.
Wiping battery stats and similar "calibration" has no effect on neither the percentage shown or battery performance.
Sent from horseback.
Thanks for the advice, I'll try it and see what happens. Any ideas to the cause of all this? Also, would buying a new battery help?
I don't really know the reason why this is happening, Li ion batteries can be somewhat of a black arts.
A new one should fix it anyway, and they're very cheap where I live at least
Sent from horseback.
pandronic said:
My battery charge fluctuates, sometimes it goes up from 5% to 35%, sometimes it seems depleted (2%) and if I check in 15 minutes it's 10% and so on.
I'm running CM 7.2 and previously Darky ROM 10.2. Since this started happening I've used a couple of the top-rated battery calibration tools, but to no avail.
Any ideas? Is it a hardware problem? Or a driver problem with the custom ROMs? Or something else?
Click to expand...
Click to collapse
I passed through Same problem when i had updated my mobile to jelly bean for first time. But after 7-8 days fluctuates is decreased from +/-20% to +/- 2%. And fluctuates are gone after 20 days.
So dont worry, just wait for 20 days.
I have a Galaxy Nexus, not rooted, and it does this all day. 80%, 14%, 78%. All in a matter of minutes.
I'm discharging fully then doing a full charge to see if it changes anything.
My Sensation never did this and the apps I have are the same. In fact I've installed less on the Nexus...
same problem
i also have this same problem, check this thread...
forum.xda-developers.com/showthread.php?t=1772177
no one gave me the correct cause or solution.i've done everything i can but no luck.if you get any correct cause or solution pls let me know.anyway I am planning to buy a new battery....
Anyone have some insight into this? Almost the second I pull the unit from the charger the power level goes from 100% to about 45%, then it stays there for about an hour, and then suddenly the unit is reporting 1% power. However, I've continued to use the HD+ for another hour or so with the screen on, and the battery is showing no signs of running out. So something seems to be going wrong with the reporting.
Here is a screenshot from my power usage graph after it drops to 1%...
img5.imageshack.us/img5/628/jh7v.png
Try a battery calibration app:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
I think a lot of people seem to have weird battery reporting issues. My battery seems to drop to about 10% then varies between 4-15% while I'm using it and lasts for hours more (even though the reported usage time left is <10min). The calibration fixed it somewhat but still has variations once the battery gets low after a few days.
I'm not having that particular problem, but I am having battery stats issues. I'm running verygreen's CM10.1 7/19 version, and before that I was running a 6/x version. Each time after charging the battery to 100% and unplugging the charger, it won't remember any battery stats until the 3rd or 4th reboot. Annoying because I'm trying to gauge battery life, but I can't get an accurate measure since the first few boots of use aren't recorded. Anyone else have this issue?
Also on Nook HD
nookhdman said:
Anyone have some insight into this? Almost the second I pull the unit from the charger the power level goes from 100% to about 45%, then it stays there for about an hour, and then suddenly the unit is reporting 1% power. However, I've continued to use the HD+ for another hour or so with the screen on, and the battery is showing no signs of running out. So something seems to be going wrong with the reporting.
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Click to collapse
Wondering if this is something to do with CM10 on Nooks because my Nook HD not + does the exact same thing. On mine Chrome, just web browsing, and any game wipes it out. But usually it will bounce back over time. Tried the batter calibration app (several actually) and while they all reported battery as calibrated correctly they did not resolve the issue.
I also have the same problem, how to solve?
Same trouble here with the battery on my nook hd+
Have same trouble.
In my case the problem was in poor contact the battery with board (plug).
Solution - solder the battery directly to the board, or something to do with the connector - so that contact of the plug was solid.
I have an ATT M7 One that is a little under a year old and recently (Past month or so) I have been having really odd battery fluctuations. I’ll link to an imgur album with some of the battery level graphs that I’ve caught in the past few weeks to hopefully help you understand what I’m talking about more clearly since I don’t think I’ll be able to describe them very accurately on my own. So in the first case i’ve encountered I will charge the battery fully, and once the phone is running on battery it will last anywhere from 15 minutes to maybe an hour two and then just die. But when it dies, the battery level still displays 60%-70%.(Images 4,5,6,& 7) Then when I turn the phone back on the battery level will be anywhere from around 0%-20% and will last for another couple of minutes before dying again. There is another case of my battery acting really strange where the battery level will stay at around 50%-60% even though it’s being charged continuously (Right side of Image 1). I don’t know if it’s because my battery’s calibration is off or of the battery is just dying. I really hope the battery isn’t just outright dying; to get to this level of battery instability in under a year seems pretty shocking to me. I should add that i didn’t get any of these problems before I rooted my phone. I didn’t notice it while it was rooted with the stock rom. I initially started noticing the problem after I installed a GPE rom (not exactly sure which). I thought it was just the rom at first but I’ve switched around to different roms and have been getting the same problem. So does anyone know what the problem is or what could have caused it and if it is even fixable at all?
Thanks for any input!
imgur album : http://imgur.com/a/4PmuO
UPDATE: I've performed a factory reset and used the phone as normal while watching battery life. The battery life lasted about an hour and a half, getting down to 80%. Throughout the battery life I was re-installing my apps and one of my restores required a restart. When I restarted my phone, the phone powered on with 60% battery life then died about a minute later.
So I've never had a problem with my battery at all. I easily got 6h of screen on time and everything was great.
Recently my Nook started to randomly shut off at around 20-30 %. It "popped" and it was off. Didn't reboot either. Like the battery was dead.
I would have to charge it again to be able to power it on.
Also the stats seemed to be off. The lockscreen sometimes told me it's fully charged and whenever I unplugged my Nook it wasn't fully charged. The battery LED also sometimes flashes green/red during charging.
I only get around 2-3 h of SOT at the moment.
I tried reflashing a couple of times (with full wipes) but the problem occured again.
So my question is: Are my battery stats messed up? Does it just stop charging at a certain point because it thinks it's fully charged but it isn't in reality?
Any ideas (on how to fix this)?
JanSpatschek said:
So I've never had a problem with my battery at all. I easily got 6h of screen on time and everything was great.
Recently my Nook started to randomly shut off at around 20-30 %. It "popped" and it was off. Didn't reboot either. Like the battery was dead.
I would have to charge it again to be able to power it on.
Also the stats seemed to be off. The lockscreen sometimes told me it's fully charged and whenever I unplugged my Nook it wasn't fully charged. The battery LED also sometimes flashes green/red during charging.
I only get around 2-3 h of SOT at the moment.
I tried reflashing a couple of times (with full wipes) but the problem occured again.
So my question is: Are my battery stats messed up? Does it just stop charging at a certain point because it thinks it's fully charged but it isn't in reality?
Any ideas (on how to fix this)?
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Click to collapse
It's almost sure that you battery is degrading very fast. But its my advice to re-calibrate your battery. Set your screen brightness to max setting and leave it on until it shuts down. Now don't power it on. Leave it charging for around 2 and half hour.
Now install geekbench benchmark app and test your battery.
If you heard a pop noise, the battery probably delaminated/micro-exploded. (Li-Ion's tend to swell and fail from the heat of (over)charging.)
There's a company, newpower99.com, who has a YouTube video on replacing the battery in the HD+. The battery sold for $25 US last year, but now that our batteries are beginning to degrade, they're out of stock.
I found another site selling replacement batteries for $80. (portatronics.com)
I've noticed that my screen-on time has dropped from 6 hous to 5.5. Maybe the Nokia N1 will be available and rooted by the time I hit 3 hours.
JanSpatschek said:
So I've never had a problem with my battery at all. I easily got 6h of screen on time and everything was great.
Recently my Nook started to randomly shut off at around 20-30 %. It "popped" and it was off. Didn't reboot either. Like the battery was dead.
I would have to charge it again to be able to power it on.
Also the stats seemed to be off. The lockscreen sometimes told me it's fully charged and whenever I unplugged my Nook it wasn't fully charged. The battery LED also sometimes flashes green/red during charging.
I only get around 2-3 h of SOT at the moment.
I tried reflashing a couple of times (with full wipes) but the problem occured again.
So my question is: Are my battery stats messed up? Does it just stop charging at a certain point because it thinks it's fully charged but it isn't in reality?
Any ideas (on how to fix this)?
Click to expand...
Click to collapse
I'm having the same issues, and reading this reminded me of trying BatteryCalibration to reset the battery since my nook HD+ stock OS is rooted.
I had this problem several times before I installed CM. Usually, it happened when there was an update available, and when the Nook started to update, it factory reset itself.
Sent from my *unrooted* ZTE Zinger using the Tapatalk app.