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Im sure we had posts like this before. But Im stuck and need help. I was on cm7 nightly 87 with oc kernel. 5/23 and all was well. The this Saturday after playing pvz before going to sleep I put my nook to sleep with approximately 40-50% on battery and in the AM it was dead. I tought maybe I was wrong with the battery charged it to 100% flashed to 93 updated the kernel to 5-23 and played around with nook a bit, battery recolabration app, screen reco etc... Went to sleep approximately 70-80% woke up in the AM 44% just now typing this on nook went from 44 to 39% battery use shows android os 49%
I do play with new apps and maybe installed something bad but I can't figure it out. Please help
that is called PMD premature battery death.. theres a thread about it in nook android dev forum and is an issue with the current cm7
luciferii said:
that is called PMD premature battery death.. theres a thread about it in nook android dev forum and is an issue with the current cm7
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Click to collapse
Thanks have to research that. Why would this just start ? It was working very good before. Thank you very much for the very fast response.
The latest nightlies (91, 93, and 94A) have an experimental fix that seems to improve things.
Sent from my NookColor using Tapatalk
xxiworld said:
The latest nightlies (91, 93, and 94A) have an experimental fix that seems to improve things.
Sent from my NookColor using Tapatalk
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Click to collapse
Yes I installed the latest nightly and left the nook over night. I left it at approximately 11pm with around 75%-80% this morning at 7am it drop down to 57%.
What I dont understand is that I didnt have this issue for a about a week that I had the nook and had the 87 nightly on it. The battery was amazing. It just kind of happen. I will start posting in the PMD thread this is very strange. Just seems that around 30% of battery disappears if nook is a sleep for a while.
No Drain - No Pain
I'm running version 88 and have virtually no drain whatsoever. I use an app killer and shut off the wifi before shutting down each night but can have less than 1-2% drop by morning. I can go a week without recharging.
Log battery stats
CurrentWidget, available in the market, is capable to log battery voltage, percent, current, and running applications list, to a file. It is also a home screen widget. Select widget type=clear text. Edit widget and change presentation to 2 column style. With these two changes all information is shown clearly. Touch displayed data value on home screen widget to cycle display between current, percentage, or voltage. Its useful and well done.
-samovar
mrainess said:
CurrentWidget, available in the market, is capable to log battery voltage, percent, current, and running applications list, to a file. It is also a home screen widget. Select widget type=clear text. Edit widget and change presentation to 2 column style. With these two changes all information is shown clearly. Touch displayed data value on home screen widget to cycle display between current, percentage, or voltage. Its useful and well done.
-samovar
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Click to collapse
Wow thanks have to try this. Also will try shutting off the wifi before sleep. The issues is that I had no problems prior to Saturday, it was working flawless I would get no battery drain I would go to sleep with WiFi on no killing apps and get approximately same battery as when I went to sleep it was great. I dont get what happened.
Also like I said before in about tablet > battery use the "Android OS" now shows 41% when the battery gets drained. So some thing happens. I guess I can wipe /system /data and start over. I flashed the latest nightly this morning while the battery was on 55% (this is drain over night, as before sleep it was 77%). Lets see how it goes. And I was so happy how this thing performed !!!!!!
It was when you flash from n87 to n93 is the reason your battery is showing such different charges. the reason your are battery is draining so fast is because your nook is not deep sleeping. you can check to see if your cpu is deep sleeping or not with a free app named "cpu spy" Im also suffering from SOD and no DS.
There are 3 battery issues right now with the nook.
1) PBD, you can read about it here:
http://forum.xda-developers.com/showthread.php?t=1098178
2) SOD and no deep sleep, you can check it out here:
http://forum.xda-developers.com/showthread.php?t=1108964
There is a form in the OP to fill out. Please fill it out and help us all squash this bug.
I was still on 87 when the issue first occurred. Now I understand everything you posted and will be more then happy to fill it out and etc.. what I dont understand is how come this worked before with out any issues, with no modifications
boxcar8028 said:
It was when you flash from n87 to n93 is the reason your battery is showing such different charges. the reason your are battery is draining so fast is because your nook is not deep sleeping. you can check to see if your cpu is deep sleeping or not with a free app named "cpu spy" Im also suffering from SOD and no DS.
There are 3 battery issues right now with the nook.
1) PBD, you can read about it here:
http://forum.xda-developers.com/showthread.php?t=1098178
2) SOD and no deep sleep, you can check it out here:
http://forum.xda-developers.com/showthread.php?t=1108964
There is a form in the OP to fill out. Please fill it out and help us all squash this bug.
Click to expand...
Click to collapse
Also I never got Sleep of Death, I just got home and I`m about down to 21% from this morning 57% which is approximately 10 hours, there was some use today. I installed the cpuspy and current widget.
Cpu spy does show deep sleep 20%. I just put it on the charger and will take it of today. I did put all levers down in Nook Tweaks.
Lets see what happens. Now will report in the AM.
Today I had battery issues as well.
When I look at the battery usage, it showed
Phone Idle used 29%
Display 28%
Cell Standby 22%
Data enabled was turned on in Mobile network Settings. I turned that off and will check again. What would be using that if there is no hardware?
I had those turned off as soon as I installed CM7 few weeks ago
I've heard it explained thusly:
Phone idle = device idle
Cell standby = radio standby
Disabling those functions does nothing to increase battery life, as reported by kernel devs, though many users report otherwise anecdotally.
Sent from my Droid using XDA App
pgrunwald said:
Today I had battery issues as well.
When I look at the battery usage, it showed
Phone Idle used 29%
Display 28%
Cell Standby 22%
Data enabled was turned on in Mobile network Settings. I turned that off and will check again. What would be using that if there is no hardware?
Click to expand...
Click to collapse
Had you by any chance just rebooted the NC before looking at those stats? The only time I've seen stats that high for those processes is right after powering the NC on. At that point, you're only seeing usage statistics for the last thirty seconds, and like any statistic, the smaller the sample size, the less meaningful the data.
I was in a reboot cycle where the unit would not power on without being on the charger.
I just checked again after installing build 95 and at the top of the screen it says 15 hours 50 minutes on battery. The percentages are still the same as before.
Ok here is my report from this AM. Took it of the charger last night at around 10:45pm with 100%, rebooted in to recovery to clear battery stats, rebooted to CM7 went to wireless enabled the wifi, deleted 1 wifi network (more on that below), made sure it was connected to my home network. Pretty much it. Battery showed 99%. Woke up just now 7am, battery shows 98%. Great.
So here are my thoughts and I think I have to experiment a bit more before conclusions.
1. Nook Tweaks with DAC boost could be causing an issue, maybe a better idea to do on demand rather then set on boot (still have to experiment.)
2. (this is most likely one) I live in Long Island and we have free wifi from Optimum (cablevision) from my house there is a week signal for that SSID and some times Nook did get on it instead of the home SSID. I suspect that it was jumping between SSID and thus draining the battery, this is why I deleted that network before going to sleep.
3. N95 fixed everything that was wrong.
4. I changed wifi to sleep after screen is off, that could of helped as well.
More testing will be done in coming days.
I do have a question regarding the OC kernel and governance. I do remember having 4 options, but now I just have to 2, performance and conservative. First question which one to use ? Second question where are the 4 governance ? Why arent they showing up ?
Thank you guys.
Dalingrin found that the smart-ass and interactive governor were causing issues (don't recall what, exactly) and pulled them out. Conservative is recommended.
Taosaur said:
Dalingrin found that the smart-ass and interactive governor were causing issues (don't recall what, exactly) and pulled them out. Conservative is recommended.
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Click to collapse
Got it. Thanks.
I'm on n98 with the 5/23 OC kernel (I believe). I always make sure minimal apps are running, I only have the wifi/sound/bluetooth toggle widgets. Screen brightness kept to minimum needed for visibility.
I charged up to 100% at about 6pm. Put it right to sleep (no wifi or anything running) and within 10 minutes it was down to 98%. I read for about 30 minutes using Aldiko before I went to sleep and for 20 minutes on the train to work. I pulled out the Nook on my lunch break to read some more and it was down to 59%, and that is just sleeping and reading (on low brightness) for about an hour.
I always have ample opportunity to charge wherever I am, but I'm just paranoid about battery life not lasting at all even when I'm barely using the thing.
I was set to OC @ 1100Mhz on Conservative but I knocked it down to 800. I don't know if that makes a difference.
Should I go back to an older version? Go to stock ROM? I'm really only going to use the Nook to read and watch Netflix on the train, or browse some websites on my lunch break. Nothing too heavy.
Hi There OB Users,
Just curious about your battery life.
Please post how long your battery can last.
What ROM and apps you using.
Mine can last roughly 20 hours on low usage (3G ON)
With Wifi ON, it's about 10 hours.
I'm using an app called "2X Battery" (can be found on market)
I'm running NOVA 4.5 ROM
Really appreciate it.
NOVA 4.5
Last three days I didn't use that much my phone so I could test how long does it go without charging.
Calling ~3min
WiFi - 5min
Camera - 10 photos
Winamp - 2h
Display was on about 1.5h
Other apps (no games) that don't use internet - 20min
At 5% I had to charge it for next day. So 95% = 2 days 18 hours. It would be 3 days if I didn't look what time is that often.
But for "normal" every day use, it's 1.5 days. I don't use internet because it's slow in my city (and it's optional for my plan). And at this moment I don't have WiFi router at home (I broke antenna).
Hey there.
here: NOVA v4.5
I use my phone a lot, like 2 hours of 3G network (lot of whatsapp, and quick web search). 3G aways ON
1 hour of calling
3 hours of music
The battery life is about 10 hours.
It would be great if i have at least a day, using it like i do.
Maybe undervolting?
Reasec said:
Maybe undervolting?
Click to expand...
Click to collapse
Undervolting using SetCPU?
Recommended settings to share?
Thanks!
hi u all!
i'm using cm7 for few days but its feel like my battery wasted so
last night i'm install 20b rooted rom then i install setcpu and advanced taskiller, i set them to battery save mode (its like close all app when screen of for taskkiller, and for set cpu, make my cpu %30 use when screen off) and i charced my phone it was %99 before the sleep. when i woke up i look at my phone and battery percent was %67, basicly i freak out!!! I JUST SLEEP and something use my battery %32
so, i delete setcpu and stop all activity of taskiller, but nothing change, battery keep going down :/
sorry for my terrible english
ofpistan said:
hi u all!
i'm using cm7 for few days but its feel like my battery wasted so
last night i'm install 20b rooted rom then i install setcpu and advanced taskiller, i set them to battery save mode (its like close all app when screen of for taskkiller, and for set cpu, make my cpu %30 use when screen off) and i charced my phone it was %99 before the sleep. when i woke up i look at my phone and battery percent was %67, basicly i freak out!!! I JUST SLEEP and something use my battery %32
so, i delete setcpu and stop all activity of taskiller, but nothing change, battery keep going down :/
sorry for my terrible english
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Click to collapse
Check if you have apps which refreshes between intervals (or even push notifications) and avoid them.. the best solution is to disable Wi-fi and, if you are not a demanding person by others, switch to airplane mode while you sleep!
EDIT: If it doesn't work, just go to recovery and clear dalvik cache
Sent from my LG-P970 using XDA
WIIstpM said:
Check if you have apps which refreshes between intervals (or even push notifications) and avoid them.. the best solution is to disable Wi-fi and, if you are not a demanding person by others, switch to airplane mode while you sleep!
EDIT: If it doesn't work, just go to recovery and clear dalvik cache
Sent from my LG-P970 using XDA
Click to expand...
Click to collapse
Unfortunately, along with many of the downsides of CyanogenMOD, battery life is an absolute joke. I think you'd be lucky to get over 24h of usage on that ROM. I have no idea why, but it seems that it sucks the life from your phone WAY too quickly.
For those having battery life issues, I'm on Zeus 6.11o and i've increased my battery life by just:
Using a good governor (smartassv2) to control CPU usage when screen off.
Recharging from dead to 100% seems to increase battery life.
And after using playerpro for an hour, surfing the net, using NBA.tv, 3G always on, an hour or so of Kairosoft gaming and i'm currently at 73%.
So life's good under the hood.
wait for ics. im using L7 right now, the battery life is way better than gingerbread.
benhotw said:
wait for ics. im using L7 right now, the battery life is way better than gingerbread.
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Click to collapse
What's L7? A rom?
Sent from my LG-P970 using XDA
WIIstpM said:
What's L7? A rom?
Sent from my LG-P970 using XDA
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Click to collapse
A phone. It's the LG Optimus L7. Comes with ICS out of the box.
my hero
WIIstpM said:
Check if you have apps which refreshes between intervals (or even push notifications) and avoid them.. the best solution is to disable Wi-fi and, if you are not a demanding person by others, switch to airplane mode while you sleep!
EDIT: If it doesn't work, just go to recovery and clear dalvik cache
Sent from my LG-P970 using XDA
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Click to collapse
thank you very very very much it totally works! and i'm start use my phone in 2G.
My wonderful Note isn't going into Deep Sleep mode which is sure to be one of the big battery drain issues i face. Can someone tell me how to get it to go into Deep Sleep mode?
Sent from my GT-N7000 using xda premium
One issue with the Note and batterydrain is that it dont turn off the WiFi when the phone is asleep. But you can fix this by go to setting for WiFi and set it to turn off WiFi when the screen is off.
When I did this my Note went from using 50% of the battery overnight, and to about 2%
At the same time I turned off the autoupdate feature for Weather, Googlemail and so on..
look at the apps that uses battery if you see samsung push service the it is your problem. i solved this issue by freezing it via titanium backup
Hi
Im running rooted note with darky rom 3.3 and franco's test kernal with no probs up to about two days ago. Now for no reason I can see battery life has dropped drastically and some of my installed apps either do not open at all or some open then just fc. I haven"t installed any new apps in past several days. Checking batt stats it tells me the note is nearly constantly awake with with wifi awake aswell but shows no app or process including wakelocks running that can account for this. Has anyone have any idea what could be causing this and hopefuly a fix.
Thanks
Ingott
Sent from my GT-N7000 using XDA
BetterBatteryStats or Badass Battery Monitor will help you pinpoint the app/process causing wakelocks and thus preventing your Note from going to sleep.
Have checked with betterbattstats and no app is running causing this problem. I have wifi set to on only when screen is on but wifi is constantly awake this is causlng batt drain I believe. Also my installed apps no longer work they fc and some dont even start. Since my last post I have reinstalled darky rom and franco kernal but still getting the same problems.
Sent from my GT-N7000 using XDA
I have the same wifi problem !
I have rocket rom V23 and abyss kernel 4.2
BBS shows no wake lock and kernel wake lock but when the wifi is connected the phone wont go to sleep and its awake and drain battery !
if I turn off the wifi it will sleep and battery drain will decrease to 0.4-0.5 % per hour.
my wifi policy is set to sleep when screen is off but when i turn off screen the wifi is still awake and i can see it connected in my router lan page and also I can ping it too.
any one has any idea ?
I have found the 'sleep while screen is off' to be very poor. I now use Llama to turn the WiFi off 1 minute after the screen turns off (in case I forget something and go back), and turn it on when the screen comes on, but only if I am at the Home or Work locations. It now works exactly as I want.
jeromepearce said:
I have found the 'sleep while screen is off' to be very poor. I now use Llama to turn the WiFi off 1 minute after the screen turns off (in case I forget something and go back), and turn it on when the screen comes on, but only if I am at the Home or Work locations. It now works exactly as I want.
Click to expand...
Click to collapse
thanks for your suggestion.
I just found Batteryfu very useful for NOW !!!
it has good options for wifi and mobile data, also has options for night mode, screen on, screen lock/unlock, while charging ,...
will test it for a day or 2 and will post my observations .
Thanks for all the replies..
I have found what works for me. I wiped kernal using jBroid then installed a different kernal to what I had installed rebooted a couple of times. I then wiped again using jBroid then re-installed my originall kernal again. This solved my problems. Suspect kernal got corrupted somehow then the wipe and overwrite sorted it out. Thanks to darky rom dev robbie hood for the heads up on this.
ingott
And my problem went away just by restarting my note.
Sent from my GT-N7000 using xda premium
I'm kind of worried of my battery life..
Last night was my first dissapointment, I left my phone untouched for the whole night (8-9 hours) and something just sucked away about 30% of my battery. Not sure if it just didn't go in Deep Sleep or bloatware leeches that much energy off it.
Within 4 hours of which not even 1 hour of Data usage + WhatsApp/Facebook another 30% just went away.
My battery was not this bad on ICS, specially if I left it during the night, I'd see max 5% drained.
Is this normal for now? Untill I go trought a bit of full rechanrging cycles? (From >5% till 100%)
Or it would be better if sometime I root it and remove some of the bloatware and convert system apps to user ones? (Like Maps,)
I also also less battery life. Is I have the double of the consumption in comparison With ICS . It dont have 1 day of battery life (18h), and I don't play. It's unsustainable...
Sent from my LG-P880 using xda app-developers app
I noticed that last night (after upgrading) I lost about 10% battery over seven hours, usually I'd only lose 4 or 5%. A little worrying. Google Now is turned off etc, just data, 3G and sync was enabled (just like I used to have with ICS).
I've just backed up my phone and might try a factory reset and restore to see if that fixes it.
I have noticed that if I open CPU Spy and reset the timers, then lock my phone and wait a minute, it is spending a fair bit of time with the CPU at 475mhz. I used to get deep sleep for 90+ % of the time, with 4.1 it seems to deep sleep about 60% of the time.
I'm gonna see if I can figure out what's waking it.
Did either of you do a factory reset after updating?
EDIT: Did a factory reset, installed BBS and CPU Spy, and a quick test found it in deep sleep 87% of the time. Currently restoring using the LG backup app, we'll see if that sorts it or whether there's something else going on here. Will report back with my findings.
EDIT: Ok, LG's restore tool just finished restoring the backup. It worked fine, aside from warning me about possible problems from a 'cross version restore', even though I made the restore with the same firmware version. As a side note, that LG restore tool is SLOOOW! I have a few big games but it would have been faster to set everything up manually, haha. Probably 2-3 hours it took to restore, though it was hassle-free.
Phone seems to be sleeping much better now... a few tests with CPU spy show about 92% of the time spent in deep sleep, which is about what I'd get on ICS. It's early days but if you guys want to give it a shot, it's shown some promise.
I just checked my phone battery stats and saw this:
Where you see the huge battery drain that's where I was downloading and then testing NFS (had better results than on ICS btw)
Battery was on 40% so I closed everything, even WiFi and went to sleep (7-8 hours)
If you see the stats it did went into Deep Sleep in the beginning but something woke it up and kept draining the battery.
Sent from my LG-P880 using xda app-developers app
i have this problem o 20B HK leak... now on official 20A without problem ... i recommend - factory reset, and then flash via LGFlashTool ... (this i do with my 20A too) and now without problem.
My battery life isnt bad at all after some gaming and watching youtube and texting
Sent from my LG-P880 using xda app-developers app
jory9 said:
My battery life isnt bad at all after some gaming and watching youtube and texting
Sent from my LG-P880 using xda app-developers app
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Click to collapse
How? Is it rooted and did some tweaks or just a factory reset?
Insomniac535 said:
EDIT: Ok, LG's restore tool just finished restoring the backup. It worked fine, aside from warning me about possible problems from a 'cross version restore', even though I made the restore with the same firmware version. As a side note, that LG restore tool is SLOOOW! I have a few big games but it would have been faster to set everything up manually, haha. Probably 2-3 hours it took to restore, though it was hassle-free.
Phone seems to be sleeping much better now... a few tests with CPU spy show about 92% of the time spent in deep sleep, which is about what I'd get on ICS. It's early days but if you guys want to give it a shot, it's shown some promise.
Click to expand...
Click to collapse
So should I do another Factory Reset?
from where do you get the dz ?
this method on the forum didnt work for me
Sent from my LG-P880 using xda app-developers app
Waiting for cm10 soon and then is all things be excelent
Sent from my LG-P880 using xda app-developers app
igorstoja83 said:
Waiting for cm10 soon and then is all things be excelent
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
I wish they could build a CM10 ROM with OptimusUI... I really like the visuals.
I cant say I am pleased with battery life on JB. I only had it for one day but it drains faster than ICS. Through the night,in about 10 hours,no wifi,no sync,no 3g,fast rebooted it drained 15%!On ICS,in that period of time, it would drain 3-4% max...On CPU Spy, "deep sleep" is only 33% so something is draining the batt..Anyone else with this probl?
Another update... I started having my phone only deep sleep for about 60% of the time again... and I think I have figured out why. Go to Google Maps, go into settings and check that "Report from this device" is unticked! Mine had somehow been enabled and I am fairly sure it was responsible for my deep sleep issue.
Monskiller said:
How? Is it rooted and did some tweaks or just a factory reset?
Click to expand...
Click to collapse
Just stock and no factory reset
Sent from my LG-P880 using xda app-developers app
I was experiencing the same high drain overnight until I stumbled upon a thread on here which suggested deleting the maps apk and odex file from the system/app folder using a root explorer. you can then reinstall it from the market. I also did the same with chrome.
before I checked with BBS and maps location services were waking the system up constantly, but after doing the above things are much much better.
you can also try disabling MLT in the hidden menu 3845#*880# as there's a thread in general suggesting this logging app could be eating into battery life/ performance.
Is it normal that the battery drain overnight is over 10% in 7-8h ?
My battery life is very poor..Over the night it drained 30%!!! And I killed all the apps, wifi, 3G everything... Through CPU Spy I can see that my phone doesnt go in deep sleep(only 13%) and it is working on 51MHz for 76% of time!! And I`m not even touching it,the screen is off...Whats up with that?How can I fix it?
P.S. I disabled Google Maps because I heard that they consume a lot of battery in the background..
Find your wakelock, find out whats causing it, then fix it ;p
Flying_Bear said:
Find your wakelock, find out whats causing it, then fix it ;p
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Click to collapse
How do I do that? I just rooted my phone, is there an app for that?
I installed "wake lock detector,but I dont know how to use it...
brunek said:
How do I do that? I just rooted my phone, is there an app for that?
I installed "wake lock detector,but I dont know how to use it...
Click to expand...
Click to collapse
Either use BetterBatteryStats (which is available free for XDA members, search the forum), or Wakelock Detector. To use either of them, plug in your phone and let it charge up. Open BBS, it will create a reference state. Then unplug your phone and let it sit overnight. In the morning open either application and it will show all the wakelocks (times at which the processor was prevented from deep sleeping). Look at what's keeping the phone awake, and remove/disable it.