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Hey guys,
I'm experiencing rapid battery discharge while Nook Color is in standby mode, battery life used to be great while on standby but after using CM7 on sdcard it's nearly discharges like when it's fully working...
Any ideas?
Thanks in advance!
sounds like your battery maybe on its death throws.. or perhaps you have too many background processes suckin up juice.. we need more info to be helpful
Reboot without card in and check stock performance. They shouldn't affect each other. Plus CM should have better battery life very soon.
Are you running the performance governor? this would keep your CPU at max ALL the time. if you are try switching to Interactive.
Does anybody know how the batter performance in standby mode for CM7.0.2 compares with stock?
Could you tell me when when the CM7 battery tweaks are coming?
Also, could somebody tell me how to maximize battery time when using Nook?
Lots of questions! Thanks in advance.
I was on cm7 but the battery drain was an issue for me. There is no fix currently but the awesome folks at the cm7 team are supposedly going to iron this out soon. Stock should last at least twice as long on standby.
If you use the nook mostly at home I would lower the display brightness all the way down, and completely shutdown at night.
Assuming not overclocked, in use CM7 is very similar to the stock ROM because the screen and backlight are taking most of the power.
In standby the stock ROM is around .2%/hr with wifi off. CM7 is around 1%/hr with wifi off.
I have CM7 nightly build 55 on my Nook and the battery life is amazing.
Besides the feedback others suggested, check to see if you have things actively running in the background. Is the setting to keep Wifi on in standby turned on? That could do it. Do you have some funky mail client on their set to check every 5 minutes or something?
I think the best suggestion was the one previously about taking the SD card out and run it as stock to see how the battery life compares. If it is fine with stock, then you know something goofy is going on with your CM7 install and I would just start over on that with the newest nightly, etc.
My batt stats say Phone idle and Cell Standby are 22% and 17 % over a 12 hr period. So those are what are killing me and the NC isn't even a phone.
wpbear said:
My batt stats say Phone idle and Cell Standby are 22% and 17 % over a 12 hr period. So those are what are killing me and the NC isn't even a phone.
Click to expand...
Click to collapse
No, they are doing nothing. Move along.
QUOTE=madguy2006;13556865]Does anybody know how the batter performance in standby mode for CM7.0.2 compares with stock?
Could you tell me when when the CM7 battery tweaks are coming?
Also, could somebody tell me how to maximize battery time when using Nook?
Lots of questions! Thanks in advance.[/QUOTE]
Battery performance even on overclocked nootered 1.2 Nook Color is great. I am getting drain of less than 0.2% compare to closer to 2% on cm7.
This is due to cm7 not having full sleep.
Sent from my NOOKcolor using Tapatalk
Thanks for your reply Canadoc!
Do you know how Stock 1.2 ROM's battery performance compares to that of Nook Froyo 0.6.8 R7 ROM?
Canadoc said:
QUOTE=madguy2006;13556865]Does anybody know how the batter performance in standby mode for CM7.0.2 compares with stock?
Could you tell me when when the CM7 battery tweaks are coming?
Also, could somebody tell me how to maximize battery time when using Nook?
Lots of questions! Thanks in advance.
Click to expand...
Click to collapse
Battery performance even on overclocked nootered 1.2 Nook Color is great. I am getting drain of less than 0.2% compare to closer to 2% on cm7.
This is due to cm7 not having full sleep.
Sent from my NOOKcolor using Tapatalk[/QUOTE]
Hi guys,
I'm running overcome 3.01 Jupiter and my battery just drains overnight. I have also turned backlight notification off but it still drains. For example yesterday it aas on 67% and today it's on 27%. Does anyone else face this problem and how can it be solved? Thanks for the answers.
Try this : charge the battery fully, after that unplug the tab and reboot. It solves the problem on a galaxy s with gingerbread. I guess it's the same bug. It's not overcome related but gingerbread 2.3.3. Hope it helps.
Can you tell me what is using the battery by going to settings>about>battery use?
DarkPal said:
Can you tell me what is using the battery by going to settings>about>battery use?
Click to expand...
Click to collapse
Cell standby=70%
Display =21%
Wifi=8%
Device idle =3%
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.
Click to expand...
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.
Recently bought a Nook HD , but when i put to to sleep by pressing power button it seems to loose 15% -17% in 6 or 7 hours in the night , when i check battery stats , the power is consumed by "WiFi" and "Idle Process" . I tried CM 10.2 and CarbonRom both seem to give the same battery life, did anyone face this issue or ,u nook is defective?
charge it up then disable wifi and let it sleep overnight...see what happens.
My HD+ will drain about 1% when sitting for two days.
It might also be an app you have installed. HBO GO for example will
sip the battery quite a bit even if you exit the app.
On the latest official nightly for CM12.1, my Atrix HD with a standanrd EB-20 battery drains from 100% to 50% without any screen on time over a 4 hour period of time. Battery stats report says that about 86% of the drain is coming from cell standby. Is there a fix for this, other than downgrading to 4.4 KK or disabling cell standby with an app like servicely?
Edit: Rewrite.