Does your Nook go crazy when the battery gets around 15 percent? Mine will start opening and closing applications and then it will shuts down. You would think it would warn me ahead of time
I ran into this phenom several times, some with battery-level readings at even higher values in the 25-30% range.
I think part of the problem is the battery-level readings in many CM builds are not reliable: I've seen battery readings jumping as much as +/- 10 points immediately following an update to a different build -- hence there is a good chance the real battery level might not be where the reading says it is.
I thought that the accuracy on my build may be off. Guess the best think to do is put her on the charger at 20 percent
pepi4 said:
I thought that the accuracy on my build may be off. Guess the best think to do is put her on the charger at 20 percent
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digixmax said:
I ran into this phenom several times, some with battery-level readings at even higher values in the 25-30% range.
I think part of the problem is the battery-level readings in many CM builds are not reliable: I've seen battery readings jumping as much as +/- 10 points immediately following an update to a different build -- hence there is a good chance the real battery level might not be where the reading says it is.
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Click to collapse
I don't think it's related to CyanogenMod. I recall getting this wonky battery behavior even on the original B&N operating system. I don't have the problem any more, but I've done so many tweaks to my Nook that I couldn't tell you definitively what did the trick. Mine will happily tick down to about 3% or so, then shut off calmly. You can try flashing one of the kernels that Demitrius has posted in the dev forum; that may help. I'm running his Nook on Fire/Showtime kernel with great success.
Of course, I do need to say that one of my tweaks was ripping out the old battery and replacing it (which happened about the same time last summer as flashing Nook on Fire, hence not being sure which fix did the trick). There are guides on YouTube to replace the battery, and you should be able to find a new battery for $30~$35 US. It's not technically challenging, but it is difficult -- everything inside that tablet is gummed up with adhesive, and you need to take great care to make sure you don't damage the case or the screen while you're pulling the old battery out.
spcagigas said:
I don't think it's related to CyanogenMod. I recall getting this wonky battery behavior even on the original B&N operating system. I don't have the problem any more, but I've done so many tweaks to my Nook that I couldn't tell you definitively what did the trick. Mine will happily tick down to about 3% or so, then shut off calmly. You can try flashing one of the kernels that Demitrius has posted in the dev forum; that may help. I'm running his Nook on Fire/Showtime kernel with great success.
Of course, I do need to say that one of my tweaks was ripping out the old battery and replacing it (which happened about the same time last summer as flashing Nook on Fire, hence not being sure which fix did the trick). There are guides on YouTube to replace the battery, and you should be able to find a new battery for $30~$35 US. It's not technically challenging, but it is difficult -- everything inside that tablet is gummed up with adhesive, and you need to take great care to make sure you don't damage the case or the screen while you're pulling the old battery out.
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Click to collapse
I may just try the Fire/Showtime kernel. I'm not sure if I'm happy with 10.3.1. I've been having WIFI problems also since I've went to it.
Thanks
spcagigas said:
digixmax said:
I ran into this phenom several times, some with battery-level readings at even higher values in the 25-30% range.
I think part of the problem is the battery-level readings in many CM builds are not reliable: I've seen battery readings jumping as much as +/- 10 points immediately following an update to a different build -- hence there is a good chance the real battery level might not be where the reading says it is.
Click to expand...
Click to collapse
I don't think it's related to CyanogenMod. I recall getting this wonky battery behavior even on the original B&N operating system.
...
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I agree that the problem of "NT going bonky at low battery" is independent of ROM version.
But false readings of "battery remaining capacity %" in some CM builds make the problem seem to occur at a higher battery level than actual.
Mine also started going crazy about a year ago when the battery got to around 17% left, this was on the original (rooted) B&N firmware, then about a month ago it would start going nuts when the battery was just below 90% full (still on B&N firmware).
I found that if the brightness was high or the CPU load was high then this made it worse, I used to use it a s portable wireless video player quite a bit and discovered I had to put the brightness to 50% or lower to try and stop it going nuts. Now it's so bad I leave it plugged into a power source all the time to use it, which has effectively killed its portability.
I have put CM 10.2.0 on it recently but that hasn't made the battery/touchscreen problem better or worse, except it can no longer read TF cards
Where did you get a replacement battery? That might solve the problem for me also.
Kevin Flynn said:
Mine also started going crazy about a year ago when the battery got to around 17% left, this was on the original (rooted) B&N firmware, then about a month ago it would start going nuts when the battery was just below 90% full (still on B&N firmware).
I found that if the brightness was high or the CPU load was high then this made it worse, I used to use it a s portable wireless video player quite a bit and discovered I had to put the brightness to 50% or lower to try and stop it going nuts. Now it's so bad I leave it plugged into a power source all the time to use it, which has effectively killed its portability.
I have put CM 10.2.0 on it recently but that hasn't made the battery/touchscreen problem better or worse, except it can no longer read TF cards
Where did you get a replacement battery? That might solve the problem for me also.
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Click to collapse
It would seem that I also have this problem. I have rooted via the method at http://forum.xda-developers.com/showthread.php?t=1439630 I haven't installed many apps so I don't think that is the problem. I only rooted it last week, spring pad went down and Evernote only supports Nook HD for some odd reason from the B&N App store. I installed Evernote, Firefox, Tor, and the Tor browser from Google play/market. It only started doing this last night, at first I thought perhaps it was a virus or something. Then I realized it happened when the power got around 23%.
It just started doing this last night. The only other thing I did was update the NTHiddenSettings app via Google Play. Thinking that was it, I reinstalled the previous version but nope no difference. Other than what I have listed this NT is stock.
I did find a great battery removal video (and place to get them) at https://www.youtube.com/watch?v=3F0glSyvj2s I hope that is not the case as I really don't want to buy/replace the battery. But if need be...ok. I really like this tablet and it does all I need.
If anyone has fixed this (besides a battery replacement) please do post. Thanks.
Oh I just found on another forum someone posting about battery calibration https://market.android.com/details?id=com.nema.batterycalibration&feature=search_result which sounds like it may be our problem. Something messed up the calibration would certainly make our NT's go crazy. Anyone ever try this?
UPDATE:
After digging around I found that the battery calibration app in question doesn't do much other than delete a file that is deleted anyway as soon as you plug in your tablet and charge it. So that is not it.
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?
This problem recently got a lot worse on my (nearly 3-year old) NT -- random opening/switching of app screens now occur at battery readings in the 65-85% range (used to be ~25%).
I contemplated replacing its battery, but with the cost of the replacement battery ranging from $22 (on eBay) to $40 (from New Power 99) and the risk of messing things up during the replacement process, I opted to simply trade in the NT for $30 of credit (trade-in offer valid till 01/17/15, see http://www.barnesandnoble.com/u/tra...FILIATES-_-Linkshare-_-TnL5HPStwNw-_-10:1&r=1) toward a new Samsung Tab 4 Nook on-sale (in-store, ending today 12/21) for $129.
FWIW, when restoring the NT to stock ROM (for the purpose of the trade-in inspection at the store), I noticed that the battery reading in stock ROM is ~20 points below the reading shortly before while running CM.
Related
My Nook is 10.5 months old and I have recently noticed it only hold charge for 2-3 hours.
I am still running 1.40 and rooted so I could block OTA. I haven't done any other modifications to the tablet.
Is this a common problem? I need to charge this thing everyday now, where before I could go several days without recharge.
Thanks for the help.
Steve
sgschwend said:
My Nook is 10.5 months old and I have recently noticed it only hold charge for 2-3 hours.
I am still running 1.40 and rooted so I could block OTA. I haven't done any other modifications to the tablet.
Is this a common problem? I need to charge this thing everyday now, where before I could go several days without recharge.
Thanks for the help.
Steve
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Click to collapse
haven't used stock in a long time, but is there an option to turn wifi off when the tablet goes to sleep? ur wifi might be sucking up power continuously if it doesn't shut off.
Yes, that is correct, Wifi can be switch off. And I have done that. But the drain has become very significant.
I am considering going for a warranty repair, but my guess I will get a refurb with another weak battery, and hassled because I have rooted and blocked OTA.
Are most folks just running off their chargers?
If folks have bad batteries are they replacing them themselves?
sgschwend said:
Yes, that is correct, Wifi can be switch off. And I have done that. But the drain has become very significant.
I am considering going for a warranty repair, but my guess I will get a refurb with another weak battery, and hassled because I have rooted and blocked OTA.
Are most folks just running off their chargers?
If folks have bad batteries are they replacing them themselves?
Click to expand...
Click to collapse
you can attempt to request for a new nook tablet placement. After two refurbished replacements with the same problem as my original NT. they sent me a new Nook Tablet and so far so good. It's worth a shot.
Came off the island today and went to the big green city. Stopped at BN and did some talking with them and also to the service center at the same time. The service center said they would send me a refurb. My 3-4hour of run time is way under the 11.5 hours you should get for the e-reader mode only. That fella felt like the battery developes memory and needed to be fully discarded to combat that occurring. I can not find any technical document that supports this idea. There are not NiCad batteries.
Anyway if I send my tablet in I will end up with 1.4.3 instead of 1.4.0.
When you get your replacement
Once you get your replacement, it's a good idea not to charge it until it show very low percentage on any nicad rechargeable batteries. When you charge it, don't remove it from the charger until it reaches 100%. Also don't have a habit of plugin it in when finish using it, plan ahead so that you can have a fully discharge battery before recharging. Your NT battery charge will hold a lot longer threw time if you do it this way. You also can try this app to see if it works.
sgschwend said:
Came off the island today and went to the big green city. Stopped at BN and did some talking with them and also to the service center at the same time. The service center said they would send me a refurb. My 3-4hour of run time is way under the 11.5 hours you should get for the e-reader mode only. That fella felt like the battery developes memory and needed to be fully discarded to combat that occurring. I can not find any technical document that supports this idea. There are not NiCad batteries.
Anyway if I send my tablet in I will end up with 1.4.3 instead of 1.4.0.
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Click to collapse
Good advise, thanks,
I put in some effort to side load the battery stats reset software and found a application call: Battery HD. I loaded this app instead. It provides a graph of the charge and discharge rate. From the graph I can see that my battery is OK. I became aware of some funnies going on when I woke up at 3 am and saw the display on. With the discharge rate as specified I now believe I have some application causing me trouble. I don't have much on the table, Titanium, MX video, Amazon apps.
I shut the unit off last night and it came back right to the same charge. Tonight I will leave it on and check the graph to see if there was an load and when. The application has a gross report on the power used separated by function instead of application. It also has a calibration test that tests the three main functions and reports the discharge rate.
Anyway, I will post what the nightly current hog is if I can find it.
Steve
sgschwend said:
Good advise, thanks,
I put in some effort to side load the battery stats reset software and found a application call: Battery HD. I loaded this app instead. It provides a graph of the charge and discharge rate. From the graph I can see that my battery is OK. I became aware of some funnies going on when I woke up at 3 am and saw the display on. With the discharge rate as specified I now believe I have some application causing me trouble. I don't have much on the table, Titanium, MX video, Amazon apps.
I shut the unit off last night and it came back right to the same charge. Tonight I will leave it on and check the graph to see if there was an load and when. The application has a gross report on the power used separated by function instead of application. It also has a calibration test that tests the three main functions and reports the discharge rate.
Anyway, I will post what the nightly current hog is if I can find it.
Steve
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Click to collapse
My friends NT has been having issue with screen turning on by itself. Seemed to narrow it down to aldiko app. Not sure why it's happening. Performed a clean install of CM7 and issue came back. I keep thinking it's hardware related, trying to convince him to try a different ROM, but he's stuck on using CM7. If you find a reason for your tablet screen turning on let us know so maybe I can help him get his issue resolved. Thanks...
Sent from my AT100 using xda premium
Vector2nds said:
Once you get your replacement, it's a good idea not to charge it until it show very low percentage on any nicad rechargeable batteries. When you charge it, don't remove it from the charger until it reaches 100%. Also don't have a habit of plugin it in when finish using it, plan ahead so that you can have a fully discharge battery before recharging. Your NT battery charge will hold a lot longer threw time if you do it this way. You also can try this app to see if it works.
Click to expand...
Click to collapse
That's actually bad advice for any lithium based battery - like the NT's lithium ion battery. LiON batteries don't like to be fully discharged and they don't like heat, especially heat when they are fully charged. That means avoid full discharges and avoid charging it to full every time, and do charge the battery more frequently (keeping the charge level between 20% and 80% for example). Partial discharge on LiON is just fine; they don't suffer memory effect.
Sent from my GT-I9100 using xda premium
Yeaper
rete said:
That's actually bad advice for any lithium based battery - like the NT's lithium ion battery. LiON batteries don't like to be fully discharged and they don't like heat, especially heat when they are fully charged. That means avoid full discharges and avoid charging it to full every time, and do charge the battery more frequently (keeping the charge level between 20% and 80% for example). Partial discharge on LiON is just fine; they don't suffer memory effect.
Sent from my GT-I9100 using xda premium
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Click to collapse
I have said it in past post, I need glasses. I totally missed this part while reading "There are not NiCad batteries" the word not always gets me.Sorry about that sgschwend. I did not even know, thanks for the info update.
Well, I always appreciate advice, my view is that it becomes a starting point and it is up to the reader to combine it with a working course of action.
As to phantom startup/turnons I checked last night and there wasn't one. I will continue till I find it. The summary screen does say what type of application is turning on so that should help. The only gotcha will be if the battery application changes how the tablet works to the point that the issue will not occur. I don't think this is very likely.
The battery application (battery HD) makes a nice graph so you can look at the slope and see what is going on, it also lists the run time for various activities based on the current battery charge. Interesting to note the Nook charger overcharges a bit and the battery does warm up some. When it cools down the charge is just under 100%. This is not an ideal situation, it would be better for the charger to slow to a point that the battery temperature is not elevated near the end of its cycle. Splitting hairs perhaps. My discharge rate matches the tablets specs even with the battery application running.
Second day of monitoring the device operated correctly. I did check and found that I have a Titanium backup batch job setup to run every day a 3 am. Which coincides with time I observed the device display turning on. I will move the time and see if the issue moves too.
Steve
Also turn off push notifications that certain apps have. They suck up a lot of battery. Install the Better Battery Stats app (search xda for it). Won't have to pay unless you want to. Monitor the partial wake locks to determine what apps are using battery during sleep.
I have a similar problem, i got a nook with cm7 and the battery doesn't last at all, i charged it yesterday and let it all night without touching it to see how long would it last and after 12 hours i got 30% and it says 70% of the battery was drained by the andoid os, it says that the processor was working for 2hrs!
i got it and stared looking for an answer to this problem and in less than 10 min it has drained 4% of the total charge, this didn't happened with the stock firmware so I'm thinking about trying jelly bean and if it doesn't get better i will have to go back to the stock firmware
Hwong, I think you hit it on the head. Last evening my NookT had a much higher current draw, loosing 20% in 12 hours. I saw this when I checked it a midnight. I had left the Nook with the battery monitor application in the graph mode, likely running as an active application instead of a "monitor" mode. Titanium Backup did run last night but it runs for such a short period it did not even show up on the graph.
So I really don't know which application or notification is causing me a problem but the issue I have had is like loosing 20% of my battery in a 6-8 hour period. Which to me looks like an application is running that shouldn't and the time I observed the screen on would do it too. As I started this post I am still on 1.4.0, rooted, OTA blocked with hidden commands.
I did a hard factory reset and wipped the caché, now my nook has been charged for 2 days on sleep mode with the wifi on.
I believe the problem was caused by an application, i believe it was the launcher and theme i was used, i re-installed it yesterday and the tablet started to drain battery quickly again so i cleaned the data used by them and uninstalled them.
The battery monitor widget use to say my battery would last 2 hrs of video playing, now it says it should last 8:30, closer to the 9hrs promissed by B&N.
It all about old sins. I found that I was jumping around in the normal Nook UI and not using the back button. So several things were still running in the background. Even though that little darling looks the same, that background stuff is a killer. I did a quick test with the battery monitor by leaving it in the graphic mode and sure enough the discharge rate went up 400%, just a dumb graph in the background plotting Voltage versus time. When I use the back button on the application graph, the current draws goes to near zero.
It really does a nice job of standby or sleep.
Maybe this will help.
You could use titanium backup to freeze the apps that you think could be causing more than usual battery drain and maybe narrow the issue down?:fingers-crossed:
sgschwend said:
It all about old sins. I found that I was jumping around in the normal Nook UI and not using the back button. So several things were still running in the background. Even though that little darling looks the same, that background stuff is a killer. I did a quick test with the battery monitor by leaving it in the graphic mode and sure enough the discharge rate went up 400%, just a dumb graph in the background plotting Voltage versus time. When I use the back button on the application graph, the current draws goes to near zero.
It really does a nice job of standby or sleep.
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Click to collapse
I recently ordered two new OEM batteries for my Atrix 4G, equivalent to the battery I was replacing – at least they appear that way. When I installed the new battery, my battery indicator was showing that the phone was at 15% after only a few hours. I charged a couple of times with the same problem occurring, I tried the second battery. When the same thing happened, I decided just to let it die all the way and charge fully after. My battery level hit 1% and stayed that way for hours and hours of use. When I timed the battery life, it was actually very good and it appeared the battery meter was just reading wrong.
I tried several full discharge and recharge cycles and tried disconnecting the battery while the phone was plugged in until the ‘?’ battery appeared and reinstalled it. The same problem occurred again and again. Next, I rooted the phone and tried the battery recalibration app. Results were the same. I have followed this up with discharging and recharging the battery fully several times but the problem still remains.
I have now installed an app that reads the voltage on the battery. It reads ~4200mV when plugged in and fully charged. It will discharge to somewhere between 3200mV and 3300mV before the phone shuts off and it takes upwards of 30 hours for this to happen. This has proved to be a somewhat effective way to actually estimate my remaining battery but it is still driving me nuts that the meter is off. Is there anything I can do?
Thanks for your help!
try this http://forum.xda-developers.com/showthread.php?t=1832470
barry_ said:
try this http://forum.xda-developers.com/showthread.php?t=1832470
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Click to collapse
Thanks for the reply. I installed the app a couple of days ago. I have tried the first option "Run the Fix" a couple of times, once with the battery stating it was at 100% while plugged in and once in the middle of the day while not plugged in. It has not seemed to do anything from what I can tell.
I have not run the second option to Fix battd yet because I had to figure out how to install Busybox, which I have now done. I will try that option tonight and report back.
Thanks.
You should also read about the purpose of the app and how to use it. It is all in the OP of that thread. There is no point in running the fix just whenever you feel like it, it is meant to be run only right after the battery is done charging. Running it any other time will most likely just mess up the stats/percentage even more (not irreversibly though).
ravilov said:
You should also read about the purpose of the app and how to use it. It is all in the OP of that thread. There is no point in running the fix just whenever you feel like it, it is meant to be run only right after the battery is done charging. Running it any other time will most likely just mess up the stats/percentage even more (not irreversibly though).
Click to expand...
Click to collapse
I did "run the fix" when my battery was fully charged overnight and rebooted the phone. I used the phone for a couple of days and it did not improve the situation. Last night I charged to 100% again and did the "fix battd" option. Today, there has been no improvement in the meter. I will try charging to 100% again tonight and try the force calibration option with the "run the fix". Is there any other way I should try to run it?
It will always charge right up to 100% and 4200 mV, the problem is the percentage will drop rapidly once unplugged all the way down to 1%. Once it hits 1% it will stay there and I can keep using the phone through the rest of the day and even overnight and into the next day before it actually powers itself down.
Yeah, I've heard of a few other people having the same issue. Sadly the battery fix app isn't going to help in your case - I don't really know what will, I'm not sure if there is a fix. Try searching the forum, this has definitely been mentioned more than once.
Hi. I just started using the Atrix today. I flashed the official ICS leak. But strangely, my battery meter isn't going above 50%. Can i use the app (from the link given above) to solve the issue>?
thanks.
Dunno. Why don't you try and see for yourself?
BTW I don't think running the leaked ROM as a daily driver is a good idea at all, especially if you only just started using this phone...
ravilov said:
Dunno. Why don't you try and see for yourself?
BTW I don't think running the leaked ROM as a daily driver is a good idea at all, especially if you only just started using this phone...
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Click to collapse
Oh ok. I will try it for a couple of days and see. So far, it is amazing. Fast, responsive, very very little lag. Just this battery thing is a little weird. BTW, it did go ahead of 50%...i hope it doesnt fall really fast.
And I have a NeXus 4 as my main phone. My office gives me one phone, hence the Atrix.
ravilov said:
Yeah, I've heard of a few other people having the same issue. Sadly the battery fix app isn't going to help in your case - I don't really know what will, I'm not sure if there is a fix. Try searching the forum, this has definitely been mentioned more than once.
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Click to collapse
I have done some research and have found that this has been a common issue for users of the Droid X. There are two revisions of the BH6X battery, SNN5880A and SNN5893A. Many users of the Droid X purchasing the 5893 revision of the battery report having the exact same problem I am having. They have solved it by using the older 5880 revision. They suspected that the 5893 was made for the Atrix and the 5880 for the Droid.
The problem is, I have the newer 5893 revision on both new batteries which, according to that info, should work for my phone. I do not have my original battery that I was replacing with me at the moment but I can check that model number tomorrow night. I only found one other thread where a person had this issue with the Atrix here. There is no real answer on how to solve or work around the problem though and I am not having any luck finding others with this issue.
Is there any way to adjust the battery meter settings or simply hide the stock meter? I apologize if this is a dumb question.
Problem solved:
I tried the batteries in my girlfriend's Atrix and experienced the same problems. Convinced it was an issue with the battery itself, I contacted Motorola through live chat and explained the situation. After talking about (some of) the various troubleshooting steps I had taken, they told me they would send me a new battery. The battery came and has been working perfectly for the last week with the percentage showing accurately.
The two bad batteries I had were manufactured 04/08/11 and 04/12/11. The new one they sent was manufactured sometime in April 2012. Perhaps a bad batch of batteries was produced by Motorola. That would explain why Droid X owners believed that the battery was incompatible with their phones. The talk that the battery was incompatible started shortly after those batteries were produced (it looks like around August 2011), and mixed in there are reports of the SNN5893A working in the Droid X for some. Hopefully this info is helpful to others.
Thanks again to everyone who took the time to offer help.
This one is a weird one...
About a week ago, I needed GPS to navigate out of a town - I waited and waited and didn't get even any satellite reception... It turned out that I found the way by myself and just closed the navigation. A few days later, same situation, no visible satellites at all... Didn't have time to reboot the phone, so I just closed the navigation and went my way.
Now, something weird is going on with my phone... Usually I get about 2 days of battery life - but since last charging, it looks i will get about 4 days and I have been using quite a few apps, browsed the net, made SIP phone calls, made normal phone calls... (more than normal usage for me anyway).
Is it just me or are those two things connected in any way? Can it be that GPS has crashed somehow and in the result, lowered the power consumption of the phone? Is it possible to turn off the GPS 'on demand' to extend battery life?
All other stuff is working like a charm...
I am using stock ROM (4.1.2, radio: I9100BULS1, build: JZO54K.I9100XWLSD)
Why do not you try installing a different rom see why.
duykhanh187 said:
Why do not you try installing a different rom see why.
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Well, a colleague of mine has the same phone and has experimented with various ROMs - none gave him so much more battery life. It is not the question of which ROM is better in terms of battery life, but whether some weird (non-functional) state of GPS (I have it normally disabled almost all the time via drop-down menu) can cause the extended battery life. And if this is possible, can this be done on purpose?
The ROM stock give many problems, you're not in fact the only that the strikes. I advise you to try some Sammy Rom! JellySNAP v6 and, for example, a great ROM based-stock Sammy
-Marco said:
The ROM stock give many problems, you're not in fact the only that the strikes. I advise you to try some Sammy Rom! JellySNAP v6 and, for example, a great ROM based-stock Sammy
Click to expand...
Click to collapse
I am bumping this topic to continue the discussion...
I am aware of other ROMs and have experimented with a lot of them on another phone. Due to extensive set of installed applications, loads of data and relatively stable stock ROM, I haven't really taken the time to do the transition.
So, I am not really looking for a solution to fix GPS, but the opposite way. I want to know if I can break GPS on next boot in order to obtain such long battery life... How many days of inactivity do you get with non-stock ROMs? At the moment, I am getting 5 days of light use WITH stock ROM (WiFi, Bluetooth, data disabled, only connected to mobile network to accept and make calls). I was never been able to do more than 3-4 days and my battery is now over 2 years old....
So, please, don't try to persuade me to install other ROMs by stating that they are better and more stable - list your battery lifes in case of light use or inactivity.... Do you get 5 days on 2 year old battery?
If you think breaking GPS is somehow responsible for greater battery life, you're going to end up rather disappointed. That concept defies logic given GPS only uses battery when you're actually using it. How is it possible for battery life to somehow magically double as a result of GPS being 'broken' ?
Thus far you've not provided one duplicable 'test' that other people can try to see if they get similar results, and all you've done is blabbered nonsense in a couple of posts. I mean, do you honestly think people here are going to delete a bunch of GPS system files to see if they can get some magical extension in battery life ? I know I'm not, because trying to put that stuff back when your silly theory doesn't work is a pain in the arse.
Did it ever occur to you that given the battery is two years old it's quite probably on its last legs & is very likely chemically unstable (this is why 'old' batteries swell up & sometimes even burst). This instability might be causing the extra battery life as the battery approaches the point where it's no longer useful. Put it this way, that's far more likely than busted GPS causing the extra battery life.
So, please don't try to persuade us that breaking GPS somehow doubles your battery life with a 2 yr old battery. Logic & almost 3 yrs worth of different people's experiences on here with this phone just don't support your ridiculous assertions.
That was a spicy reply, MistahBungle
Some facts:
- No system update was installed in the last month
- No application has been removed
- System hasn't been rebooted for a month or so
- Never got more than 2-3 days out of battery in idle
- Battery is 2 years old and is physically not damaged or swelled
- GPS isn't working (not even receiving or predicting a satellite on a clear day)
- System is rooted for a year or so
- Battery lasts 4 days now (instead of <2days a month ago)
- Connected to 3G network (no data connection)
I would try to reboot my phone, but I am afraid that it will all be over...
So, to stay with firm facts - how much battery life do you get with alternative ROMs in real life? Is 4 days (5-6 days with new battery) something usual?
That concept defies logic given GPS only uses battery when you're actually using it.
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Can you then explain me the difference between Cold and Warm GPS start? As far as I know, phone tries to keep as accurate GPS time as possible and a bunch of ephemerisis data in order to decode GPS data faster, next time you enable GPS. This defies logic that GPS is completely OFF when it is 'disabled' by GPS button in Android system.
I mean, do you honestly think people here are going to delete a bunch of GPS system files to see if they can get some magical extension in battery life ?
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No, I don't expect it to. I am looking for information whether anyone experienced anything similar.
Did it ever occur to you that given the battery is two years old it's quite probably on its last legs & is very likely chemically unstable (this is why 'old' batteries swell up & sometimes even burst). This instability might be causing the extra battery life as the battery approaches the point where it's no longer useful.
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In Lithium-powered batteries, I haven't come across the fact that battery capacity is increased with battery ageing and sweling up... On the contrary, internal resistance goes haywire and capacity drops, contributing to even more heat being spent internally by the battery and speeding up the process of degradation...
I may have not been cooking my own ROMs and writing drivers for phones, but I have quite extensive background in embedded systems and electronics. Battery life can not increase just by itself - there must be a reason... My lifestyle hasn't changed, my environment also didn't change, other phones at home didn't experience such battery life extensions... The only thing that I noticed is that the GPS is not working. I opened this topic in order to discuss whether that's the true cause or not.
So, based on '3 yrs worth of different people's experiences on here', what could be the cause for such prolonged battery life? How can I debug it by myself without rebooting the phone?
I feel pretty bad since Ive been bouncing around this forum asking questions about the root process for my friends Nook Tablet like there's no tomorrow. But Unfortunately I have yet another question about the Nook Tablet. I've done the Rooting process thanks in large, if not completely, to digixmax. But one thing Ive noticed is that the battery seems to die pretty quickly. Unfortunately I didnt take a moment to play with it before rooting, so I don't know if the battery was just getting old, or if it's because how much the CM11 Kitkat Rom is taxing the Nook Tablet. Either way, I explained to my friend that the battery may not last as long because the Nook Tablet probably wasn't exactly design to have all the features/functions of KitKit. She looked into battery option yesterday and cam back with this:
http://www.newpower99.com/Barnes_No...cement_Kit_p/barnes and noble nook tablet.htm
Does anyone know if the NewPower99 batteries are any good? And would it power the Tablet longer than the current factory battery?
varxtis said:
I feel pretty bad since Ive been bouncing around this forum asking questions about the root process for my friends Nook Tablet like there's no tomorrow. But Unfortunately I have yet another question about the Nook Tablet. I've done the Rooting process thanks in large, if not completely, to digixmax. But one thing Ive noticed is that the battery seems to die pretty quickly. Unfortunately I didnt take a moment to play with it before rooting, so I don't know if the battery was just getting old, or if it's because how much the CM11 Kitkat Rom is taxing the Nook Tablet. Either way, I explained to my friend that the battery may not last as long because the Nook Tablet probably wasn't exactly design to have all the features/functions of KitKit. She looked into battery option yesterday and cam back with this:
http://www.newpower99.com/Barnes_No...cement_Kit_p/barnes and noble nook tablet.htm
Does anyone know if the NewPower99 batteries are any good? And would it power the Tablet longer than the current factory battery?
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I realize this is a old post but I thought I would chime in on it. I have done a lot of research lately as I have a battery issue. Well it is a problem with phantom touches when the battery gets to 23% or so. From all I have read this is a battery issue. At first I was thinking it needed to be calibrated. However after digging though all the information, most battery calibration methods just delete the battery stats. This apparently is only data since the last time the device was charged, and not long term information that affects calibration (confirmed by a Google engineer). I did read about one other file to delete in \rom max#### if I remember correctly, and that might do it. I may try that soon.
The only other method I saw was to charge it full, run it down till it shuts down, charge it till full, turn it on and let it sit ON for 30 minutes (set screen shut down to 30 minutes), then plug it in to charge full. With some Android devices this can recalibrate the battery (which makes sense), but not sure if it will work on a NT or not. I am going to try it though.
But back to the battery, I did like the look of it and the video they did. I may purchase one from them if all of the above methods don't work. Someone else got a 3rd party battery from another company and said it worked well http://forum.xda-developers.com/nook-tablet/general/changed-battery-nook-tablet-t2829771 it is the same capacity which IS less than a original NT battery (3200 vs original NT at 4000) so you won't get the same runtime that you would with a brand new NT. That said all LI-ion batteries degrade with age, so even if you happened to find a new unopened device, the battery would not quite be the same as when it was released. Also while you can get batteries from say Ebay, you do not know how many cycles or life is left in them. Could be a few days, a few months or years. Even if they say 80% of the capacity is left in them, that is approximately what you will get with one of the new batteries anyway.
The one company is cheaper than the other (20 from batteryship.com vs $40 from newPower99) and they are the same capacity so I am not sure which one you would want to go with. As far as presentation goes, Power99 wins with their nice video on you tube and the look of the battery itself. Both seem to include the two tools necessary to do the battery replacement. So again up to you which way you want to go. Both have 1 year warranty. One thing about newpower99 they will install it for you for $60 http://www.newpower99.com/Battery_Replacement_Service_for_Nook_Tablet_p/nook-tablet-pbr.htm I can't vouch how well they do but if someone is really worried about doing it, then I would say let them do it instead.
Personally though I would just do it myself. But I did just find this on the newpower site "•Opening an electronic device and replacing the battery does entail risks to the functionality of the unit. NewPower99.com does not guarantee the overall functionality of your unit after battery replacement service. You acknowledge these risks and understand that NewPower99.com's maximum liability is limited to the cost of the battery replacement service." Which doesn't instill confidence in sending it to them lol.
About a week and a half ago, my battery went from draining ten percent in a typical day (hour to an hour and a balf of constant use, browsing Facebook, web, email - if I really went ham I might go down in the 80s) to easily closing in on the 50s if not more.
I've tried several factory resets, gotten the lollipop upgrade that just hit, removed apps, upgraded apps - nothing. I'm on stock and haven't had this phone more than a month. Android System is typically the worst offender for battery usage according to the settings monitor.
Please help. I was so impressed and now I'm at a loss.
If you've done factory resets, then I would say, factory reset again and stay on stock apps. Don't install anything else. Monitor what happens with your battery life. My guess is, if you have installed other apps since doing the factory reset, it's an app that is misbehaving, even though you see android system being the main culprit. More than likely, it could be an app that isn't releasing resources correctly or hasn't been updated to run correctly with LP. That usually points to a sign of improper programming, or they haven't update their app yet to perform correctly under LP.
If things are running fine on stock, start adding your apps back one by one. Install one app, leave it for a few days and see what happens. if battery life stays the same, then move onto the next app. Hopefully, you'll find the app that's giving you issues.
If even with just stock apps you are having the issue, then it might be a hardware issue, possibly even battery. But, if it's been working fine before the LP update, I highly doubt that. My best guess is it's a misbehaving app.
I'm still having problems with nothing else but stock apps, unfortunately. The problem started shortly before the update - does that support that it's more hardware or more software related? The phone is still fairly new and though I know that doesn't rule out a bad battery, still kinda hoping I don't have to deal with Verizon and getting a replacement.
Talked to Verizon, they said "we checked, battery's fine." So... guess its not the battery? They said it "could take a month to normalize after the update."
I would buy a replacement battery and install it, see if that helps. They are cheap and it's good to have one anyway. The Ankers come in a 2-pack with a nice universal wall charger.
Verizon is not even bothering to check really, are they ? Did they even loan you a replacement to prove to you it's not a bad battery ? Doubt it. Do it yourself.
It really sounds like you are having excessive battery drain due to a wakelock problem like with Google's update service. Check around here for threads about how to diagnose and mitigate that.
Sent from my VS985 4G using Tapatalk
I didn't expect Verizon to help, but they definitely impressed with just how little they offered. I'm spending today with Wi-Fi and 4G off, unless browsing, for which I turn the latter on. In my half hour lunch I've noticed much, much better battery usage. Thoughts?
Edit: change of location seems to drain it quicker (school vs McDonalds parking lot - former worse than the latter). Signal was three bars in each, though.
I've looked a bit ino wakelocks but will read up on it more tonight. Problem I've found is how many detectors require root access, and I'm not real interested in rooting.
I just got my G3 last night and rooted it and did a few things to minimize battery drain and today, after almost 12 hours of light to moderate use my battery is still sitting at 81%.
Pretty sure there's a memory leak on stock vs985 lollipop... Or at least from what I had read and experienced