Database Users

Tips on Getting the Most out of your Battery

Anybody have any tips on getting the most out of your battery. I'm currently rumming WM6 business edition and just want to know how I can get more out of my battery. I have read to turn off wi-fi and gprs when not using it.. is there anything else that can be done. I have all the battery patches but i dont feel as if they are working..any help would be greatly appreciated

turn IR beam off too...

is that set on by default?

Turn off your phone overnight. You can get an app to do this by schedule (I cannot remember the name, sorry).

PaulMdx said:
Turn off your phone overnight. You can get an app to do this by schedule (I cannot remember the name, sorry).
Click to expand...
Click to collapse
Do you mean turn my phone off when i recharge? I ususal recharge during the night

i pretty much never run out of battery and i am running windows mobile 6, all i do is just make sure the screen is off (the button on the top right) and it really helps the battery out

jawnsixteen said:
i pretty much never run out of battery and i am running windows mobile 6, all i do is just make sure the screen is off (the button on the top right) and it really helps the battery out
Click to expand...
Click to collapse
Do you do this during the night or throughout the day. Thus having the phone set to turn off after 5 mins of inactivity

by the way, how the heck can i disable "gprs always on" thing? i don't need gprs often, so it just hangs out there without a real purpose, and probably draining my battery a bit...

banannq said:
by the way, how the heck can i disable "gprs always on" thing? i don't need gprs often, so it just hangs out there without a real purpose, and probably draining my battery a bit...
Click to expand...
Click to collapse
You can use NoData. Works well for me. Needs registration to the website:
http://www.modaco.com/index.php?showtopic=246171&st=0

that just lets you turn it on and off. is there any app that turns on only when needed ie you try to access the internet or get a mms messaging

k2e15 said:
that just lets you turn it on and off. is there any app that turns on only when needed ie you try to access the internet or get a mms messaging
Click to expand...
Click to collapse
WM6 should do this after a standard install...by default! Make sure you have GPRS AlwaysOn turned off (Using a Registry Editor search for "Always" and find your matching Internet Connection. Set the value of the AlwaysOn DWORD to 0, not 1.)
Let me know if you need any other help.

i press the button on the top right whenever its not in use. And of course at night.

i set the display to the 2nd bar from the left. it saves way more battery then having the bar in the middle. i turned off the beam. i set power off to 2mins and backlight out @ 30secs. i push the power button (top right) during any phone call to turn the display off. my battery can last me all day and i talk/txt alot.

Buy an extended battery?

aNiMeMaN14 said:
Buy an extended battery?
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Click to collapse
lol I have done that!! but I know that there has to be away to save battery.. THx guys I'm going to try these suggestions!

k2e15 said:
Do you mean turn my phone off when i recharge? I ususal recharge during the night
Click to expand...
Click to collapse
I meant turn it off if you leave it overnight without charging it. My point is moot if you charge it overnight anyway.
I charge mine at work mostly, so I don't charge it overnight. Generally I do so every couple of days.

hpspec said:
WM6 should do this after a standard install...by default! Make sure you have GPRS AlwaysOn turned off (Using a Registry Editor search for "Always" and find your matching Internet Connection. Set the value of the AlwaysOn DWORD to 0, not 1.)
Let me know if you need any other help.
Click to expand...
Click to collapse
Found it..but there is not a way to actually turn off gprs if I use it for direct push correct?

ok..not to start something but if uve gone as far to buy a ext battery and ur still not happy w/ batt life sell ur device and buy a nokia they are great on battery.. u cant expect to get good battery life out of this thing..i mean look what it does...

What kind of battery life are you seeing with the WM6 BE rom? I installed it a week ago and so far I've been AMAZED as the battery life. With my reg-tweaked Cingular 2.25 stock rom I'd end the day between 45-55%. Now It's 75-80% solid.
Also, it seems that Wifi uses less power in this rom too...

As of right now I'm not using my extended battery because i wanted to go back to the original battery that came with the phone for a short time since the other battery is bulkier, I only like to use it during the weekends when I'm not close to a power source. I've used all the tips in this thread and they have all worked as my battery has been going strong. thx

My Magician always shut off below 35% Battery

Anyone could help me how to solve this matter?
I just put on the table n using music for a few hours until the battery indicator below 35%, n suddenly it turn off by itself, whether I restart it again, til the Today Screen, going turned off again.
For delineation, I will give little explanation what I've done:
* I have read the post in others, like "lock" the little switch sensor behind the battery cover... I have done this, even with no battery cover attached, my magician could turn on.
Thanks....

chikarakoon said:
Anyone could help me how to solve this matter?
I just put on the table n using music for a few hours until the battery indicator below 35%, n suddenly it turn off by itself, whether I restart it again, til the Today Screen, going turned off again.
For delineation, I will give little explanation what I've done:
* I have read the post in others, like "lock" the little switch sensor behind the battery cover... I have done this, even with no battery cover attached, my magician could turn on.
Thanks....
Click to expand...
Click to collapse
ur battery's life is about to end!! so the best possible solution is to replace a new one.

so sad...
but thanks...

Prolong time between charging

Hello!
Today my battery on my Epic 4G with Froyo drained after 12 hours. And actually, I didn't do anything. I'm still new in the Android. Can you share your best practice what you are doing to prolong time between charging? What apps you are using, what you are turning off, etc.?
Thank you!

First step is to install Spare parts and figure out what is in fact draining your battery. You need to check if its running instead of sleeping when the display is off. Also check in settings under About Phone > Battery Use to see what is using the most battery.

The biggest thing I did to help my battery was killing the drm process. Also when your phone reboots put it in airplane mode for a couple seconds so your time without signal won't be 50% and killing your battery. And if you use wifi change the sleep to never. Other things I leave gps and Bluetooth off till I need them and I keep the brightness setting all the way down and I don't use live wallpaper.

muyoso said:
First step is to install Spare parts and figure out what is in fact draining your battery. You need to check if its running instead of sleeping when the display is off. Also check in settings under About Phone > Battery Use to see what is using the most battery.
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Click to collapse
I've checked the Spare Parts. 98% of running time is process called kswapd0. I don't know what is it.
What do I need to do to prevent it?

antila said:
I've checked the Spare Parts. 98% of running time is process called kswapd0. I don't know what is it.
What do I need to do to prevent it?
Click to expand...
Click to collapse
Thats a new one to me. Seems like other galaxy S phones have the same issue. No idea what causes it.

Battery won't charge past 88%.

Battery won't charge past 88%. How do I recalibrate it?

goodintentions said:
Battery won't charge past 88%. How do I recalibrate it?
Click to expand...
Click to collapse
I am sure there are other ways, but if you are running CWM you can try booting into recovery and clearing the battery cache.

wiping cwm bat stats doesnt do anything. Still cant charge beyond 88%. Should I exchange for another one?

goodintentions said:
wiping cwm bat stats doesnt do anything. Still cant charge beyond 88%. Should I exchange for another one?
Click to expand...
Click to collapse
If I could I would - have not had any problems of this nature myself, you are (I think) the first or second person here on XDA to report this - since you just purchased it perhaps a exchange would be a easy fix

goodintentions said:
wiping cwm bat stats doesnt do anything. Still cant charge beyond 88%. Should I exchange for another one?
Click to expand...
Click to collapse
Are you charging with the tablet turned on? If so, I've had a similar situation where it wouldn't charge past 92% while plugged in. I just ran it down to almost no battery, shut the tablet off, charged it up while I slept, and all was well again,

My left side is creaking anyway. So i will exchange tomorrow.

how come there is not a 'never' setting for when screen turns off? I cant keep it on to drain battery.

goodintentions said:
how come there is not a 'never' setting for when screen turns off? I cant keep it on to drain battery.
Click to expand...
Click to collapse
There may be other ways to do it, but look for extended controls in the market. It has an option for 'screen always on'
Hope that helps

vanisleguy1976 said:
There may be other ways to do it, but look for extended controls in the market. It has an option for 'screen always on'
Hope that helps
Click to expand...
Click to collapse
You can use GPS Test to keep the screen on. Found in market.

I use screebl. I love it because I set it to turn off my screen in 5 seconds when the tablet is flat on it's back and to never turn off then I have it on my lap.
That way I can download or do anything and it won't turn off on me and I don't have to manually lock it if I set a long timeout for the screen and I just place it on my desk and do something else.

bpivk said:
I use screebl. I love it because I set it to turn off my screen in 5 seconds when the tablet is flat on it's back and to never turn off then I have it on my lap.
Click to expand...
Click to collapse
Thank you so much for telling me about this app.
I just got a new iconia. I actually had a choice to exchange for either another iconia and a transformer. After weighing the options, I went for the iconia. The ports just can't be beat. I've been incorporating the gtab in to my work. I am now going to incorporate the iconia into my work. The full usb and hdmi just can't be beat.
About the new iconia that I got, wow. Very solidly built. No creaks at all. Testing out the battery now. I'm going to let it run out of battery from 36% that came with it. Then I'm going to charge it all the way up. Hopefully, this one will go to 100%.
Playing around with it, I can already tell this runs smoother than the one I traded in. I guess the other one just had hardware problems.
Anyway, I am happy that I was able to find one within 10 minute driving distance. I called around this morning and almost every place is out of iconias. Then I called this place 10 minutes away and they had 1 more in stock.
Anyway, I'm happy with the end result.

I may have solved the famous battery problem on Nook & Nook Touch!

Hi,
I've been using Nook for two years and Nook Simple Touch for 5 months or so.
I've rooted both my devices and used them that way (until my original Nook got those screen problems and became unusable)
Starting from first days I realized that the battery life was quite shorter than advertised. In fact it was almost unacceptable, like draining %10-15 a day while standing by (at the regular screensaver)
First I thought this was caused by the rooting and custom firmware. I tried the regular disabling of services, but to no avail. After a while I decided to return to the stock 1.1 firmware (on NST). To my horror I saw that nothing changed. Then I rerooted the hardware, still same.
One day, while I was reading a book I got a call and had to leave the house very fast. Thus I bagged the NST and got out of the house.
After returning home, I left that bag in my living room and did not open it for five days. After five days I picked up the NST, which was %70 charged five days ago, sure that I had to charge it again. To my surprise I saw that the charge was still %62. How could this happen, I began to querry. And remembered that I did not manually activate the screensaver -which was my general behaviour.
After that day I did not manually activate the screensaver even once and the battery drain is never more than 1-2%/day.
I'm not an Android developer, I'm a regular computer guy (using computers for almost 30 years) but I have strong gut feeling that this may be the problem, that manually activating the screensaver is not same as activation after a time out.
I guess many people over here, being -not regular users but optimization obsessed technical people- prefer to activate the screensaver manually. Thus they have the drain problem.
If you are suffering the same problem, please test this and write your feedbacks over here. May be one of the coders can look into this problem in the end.
With kind regards

You may be onto something there.
I certainly believe that the problems are related to not fully going into sleep mode.
I have caught the Nook many times that it was supposed to be sleeping and the touch screen was still running.
I always used the power button when I'm done, I had the screen timeout set on one hour.
I just set my screen timeout to 10 seconds to play with this.
I couldn't get the Nook to act up with the power button shutdown.
To set your screen timeout to a arbitrary value (time in milliseconds):
Code:
adb pull /data/data/com.android.providers.settings/databases/settings.db settings.db
sqlite3 settings.db
update system set value=10000 where name='screen_off_timeout';
.q
adb push settings.db /data/data/com.android.providers.settings/databases/settings.db

foredog,
Could you clarify a bit, please?
Nook can go into screensaver via
timeout,
front button,
back power button or
"button savior Off" button.
Which button you referring too to manually activate the screensaver?

foredog said:
After that day I did not manually activate the screensaver even once and the battery drain is never more than 1-2%/day.
Click to expand...
Click to collapse
I use my Nook Simple Touch minimally and almost always use the back button to activate the screensaver. I see pretty good battery life upto 20+ days. The only thing I do differently from you is turn off wifi before I activate the screensaver. Maybe wifi is the main cause for the battery drain.
--

cbay said:
I use my Nook Simple Touch minimally and almost always use the back button to activate the screensaver. I see pretty good battery life upto 20+ days. The only thing I do differently from you is turn off wifi before I activate the screensaver. Maybe wifi is the main cause for the battery drain.
Click to expand...
Click to collapse
WiFi is definitely a big one.
Any easy way to "auto turn it off" with screensaver activation?

Don't know about that - I always use the "sleep" button to activate the "screensaver". Right now, I'm up to a month of use, and like 30% batt still. I turn wifi on when I need it, and off again when I don't. Glowlight on for like 20 min/day.
Actually really impressed with NST Glow.

Sorry I did not mention, that my wireless is always off.
@Apokrifx: I'm using the power button at the back to go to sleep mode.
What you all are saying is similar to general behavior. Everyone is not experiencing this drain among Nook users, only some.
In my case, letting NST time out really solved the problem.
What Renate says is really similar to my experience. Time and time I accidentally touched the screen (while it was on the screensaver and it asked for the swipe motion (meaning the touch interface is responding) which should not happen in the sleep mode.
I'll let you know if anything changes.
Thank you for the feedbacks.

I think the original post info is quite accurate. I notice when I don't go back to the home screen, and leave it on the stock reader when I put it down-- battery life is much better.
It appears that, when the stock reader is running, it shuts down most background services. But, that's just a theory.

i guess when u activate ur screensaver that wont drain power from ur battery ..... cuz in screensaver mood the animation on screen stopped like calculator screen ..... just display image and didnt move any pixels on screen ..... so .... ummm .... i guess ur problem may u not charge battery well .... let me tell u .... u must per month empty the battery until nook tells u that ur nook device cant power on .... and that will guarantee to u long life to ur battery also keep ur battery more efficiently and working perfect
hope i helped ..... best regards

Actually, I've had no battery problems in a while.
I've got rid of almost all the B&N stuff though.
USB host mode, with its polling seems to take a bunch of battery though.
It's still manageable.

I got my glowlight nook recently(after I stepped on my old Nook ST, ouch). When you have glowlight on and the Nook goes into sleep mode the glowlight turns off. It happens even if you press the back button. But... I had few instances when the screensaver activated and the glowlight didn't turn off... Can't reproduce this issue too often and with glowlight at least I know when it didn't turn off But other services might have simmilar issue.

I wonder whether this has anything to do with the wi-fi sleep mode you can tweak on normal Android phones... maybe the default sleep disconnects the wifi too, while the sleep button in the back just activates the screensaver.

Renate NST said:
You may be onto something there.
I certainly believe that the problems are related to not fully going into sleep mode.
I have caught the Nook many times that it was supposed to be sleeping and the touch screen was still running.
I always used the power button when I'm done, I had the screen timeout set on one hour.
I just set my screen timeout to 10 seconds to play with this.
I couldn't get the Nook to act up with the power button shutdown.
To set your screen timeout to a arbitrary value (time in milliseconds):
Code:
adb pull /data/data/com.android.providers.settings/databases/settings.db settings.db
sqlite3 settings.db
update system set value=10000 where name='screen_off_timeout';
.q
adb push settings.db /data/data/com.android.providers.settings/databases/settings.db
Click to expand...
Click to collapse
Hi,
The UK went crazy with the Nook last week and I got one. I also got the problem with the battery. I have tried this:
This is taken from qvc forum. I cannot paste the link, as this my first post. This is what Bogeygirl says: (you will need to google the text below, and find this on qvc)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
I love my Nook Simple Touch that I purchased in February of this year. I was so disappointed that after this short time and charging to 100% it would drain to 8% over night..This happened twice. I did NOT have the wi-fi on and the automatic shutoff I had set to 2 minutes so no issue there. No recent updates had been done to cause an issue like this.
I was not worried because it was still under warranty and would be replaced. So I called B&N CS and went through all the steps with them to make sure it was in fact defective.
He asked me to totally shut it down and do a hard reset and re-re-register the unit. I was not hopeful that this would work at all. I know that a hard reset can fix a multitude of sins but I never would have thought it would work to fix this battery draining issue..To my surprise it worked.. Battery charge is holding just like before.. I read a lot and usually charge it once a month.. I am so glad that this worked. Such an easy fix but I will continue to monitor the battery charge just in case.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
I have tried it, and it seems to work fine, holding charge OK. Bogeygirl says hard reset, but it is the soft one. Foredog says that you don’t need to click the power button to sleep (just leave Nook to do the job for you), but I do click it to sleep, and I do also tap the screen, just to make sure that it is properly sleeping. It is fine at the moment. I think the whole problem with the battery is a software error with sleeping mode, as you say here. I think you are right.
I don’t have it rooted, as I only want it for reading.
Do you have any other advice for the battery? Or easier? I think everybody is having problems with the battery.:crying:
Thanks

Deep Sleep Battery Saver?
Does Deep Sleep Battery Saver help with the power-button not sleeping properly?
It performs several functions:
1. Supposedly automatically puts the device into sleep mode whenever the screen turns off (if you configure it properly).
2. Functions as a task killer, with a whitelist, to clear out buggy apps.
3. The Whitelist allows you to prevent useful apps from being killed.
I still use the power button to put the NST to sleep. Last night it drained about 7% overnight, although I leave WiFi on and read RSS feeds for an hour before putting it down. Also, DSBS is configured to wake up the device every four hours.

smayonak said:
Does Deep Sleep Battery Saver help with the power-button not sleeping properly?
It performs several functions:
1. Supposedly automatically puts the device into sleep mode whenever the screen turns off (if you configure it properly).
2. Functions as a task killer, with a whitelist, to clear out buggy apps.
3. The Whitelist allows you to prevent useful apps from being killed.
I still use the power button to put the NST to sleep. Last night it drained about 7% overnight, although I leave WiFi on and read RSS feeds for an hour before putting it down. Also, DSBS is configured to wake up the device every four hours.
Click to expand...
Click to collapse
The battery drain is due to some BN apps and Android System apps, mainly. I use the last version of "SystemApp Remover" for disabling apps (eg:AFfileDownloadService.apk,AccountAndSyncSettin gs.apk, BnAuthenticationService.apk, BnCloudRequestSvc.apk, DemoMode.apk, DeviceManager.apk, DeviceRegistrator.apk, Music.apk, NookCommunity.apk, Phone.apk, QuickStartActivity.apk, Shop.apk, Social.apk ,TelephonyProvider.apk, WaveformDownloader.apk).

kuskro said:
The battery drain is due to some BN apps and Android System apps, mainly. I use the last version of "SystemApp Remover" for disabling apps (eg:AFfileDownloadService.apk,AccountAndSyncSettin gs.apk, BnAuthenticationService.apk, BnCloudRequestSvc.apk, DemoMode.apk, DeviceManager.apk, DeviceRegistrator.apk, Music.apk, NookCommunity.apk, Phone.apk, QuickStartActivity.apk, Shop.apk, Social.apk ,TelephonyProvider.apk, WaveformDownloader.apk).
Click to expand...
Click to collapse
I thought it was due to the device not sleeping after the power button was pressed?
I also removed those APKs from the system directory, thanks to many of you guys.

Switching Wifi Off Worked Well
ApokrifX said:
WiFi is definitely a big one.
Any easy way to "auto turn it off" with screensaver activation?
Click to expand...
Click to collapse
I had a Kobo mini & was not happy with the formatting of PDFs, hence I *had* to get a Nook Simple Touch ... the PDF formatting is excellent. However, I soon suffered the battery problem & couldn't get it to charge. I followed the advice on this page and it works so much better now. This is what I did :-
1) Switch off the Wifi. I have no need for it anyway as everything I read is PDFs loaded via SD card.
2) To charge, make sure the device is fully off using the back power button.
3) I charge it using a wall socket, rather than a computer. I have heard that this makes a difference in charging times.
It's early days, regarding how long it stays charged, but I reckon I will be resorting to switching the power off, rather than putting it on standby. I'm just pleased I managed to get it to charge at all and I am back in business.

assembler31415 said:
I had a Kobo mini & was not happy with the formatting of PDFs, hence I *had* to get a Nook Simple Touch ... the PDF formatting is excellent. However, I soon suffered the battery problem & couldn't get it to charge. I followed the advice on this page and it works so much better now. This is what I did :-
1) Switch off the Wifi. I have no need for it anyway as everything I read is PDFs loaded via SD card.
2) To charge, make sure the device is fully off using the back power button.
3) I charge it using a wall socket, rather than a computer. I have heard that this makes a difference in charging times.
It's early days, regarding how long it stays charged, but I reckon I will be resorting to switching the power off, rather than putting it on standby. I'm just pleased I managed to get it to charge at all and I am back in business.
Click to expand...
Click to collapse
You probably don't want to resort to always powering off your Nook all the way, because the boot-up sequence uses about 3 or 4 times as much battery as regular use, making multiple reboots take up a large amount of battery.

Renate NST said:
To set your screen timeout to a arbitrary value (time in milliseconds):
Code:
adb pull /data/data/com.android.providers.settings/databases/settings.db settings.db
sqlite3 settings.db
update system set value=10000 where name='screen_off_timeout';
.q
adb push settings.db /data/data/com.android.providers.settings/databases/settings.db
Click to expand...
Click to collapse
Is there a way to change default values?

I have a nook simple touch glowlight, it's about 5 years old. Recently it has been saying battery too low to use. I plug it in and it goes to restart right away. When I look at battery life it my be at 89% (this was today). Is there something I can do to make this stop? It's quite a pain to to this everyday. I read on this a lot about a 1000 pages per week. In the "old" days a charge would last 20-30 days! Please help, I hate to get a new on, I love my nook!