Database Users

n00b here, need help with battery issues

Hi there; this is my first post so please go easy on me.
Bought a Nexus 4 which is my first Android device, but the battery life is bugging the hell out of me. Surely the screen should always be at the top, right? I left it to sleep overnight on a full charge to find that it had shot down to 60% when I woke up at 7 this morning.
I haven't rooted or flashed or anything like that, because as I said, I'm an Android virgin. I have location settings off, only Gmail syncing and the usual push notifications here and there. Nothing too fancy or strenuous.
Any help on how I can go around fixing this? I'm a little afraid to rooting/flashing/ROMs etc, because I've no clue what works best.
Cheers!

If your saying you left the screen on over night, meaning the phone never went into deep sleep.. If you slept for let's say 6 hours and the phones screen was on for that whole time it's normal that it went down to sixty percent battery.
Maybe I'm understanding your post wrong? Btw I cannot see the picture you posted.
Sent from my SGH-T999 using xda app-developers app

Turn off mobile data and lower the screen brightness to 0 during the day. Also disable WiFi when you're sleeping. I also make sure all apps are closed using the app manager button on the far right.
Mine's been fine following this logic.

Oh sorry, I should meant sleeping overnight, whilst I slept cosily in my bed.
I'll reattach the image in a second

Ah, you won't be able to see any links till I've gone past 10 posts. Back in a bit then, ha.

atw1927 said:
Ah, you won't be able to see any links till I've gone past 10 posts. Back in a bit then, ha.
Click to expand...
Click to collapse
lol I see it now.. try performing a reset, android shouldn't be that high.. are you rooted? custom rom/kernel?

Crisisx1 said:
lol I see it now.. try performing a reset, android shouldn't be that high.. are you rooted? custom rom/kernel?
Click to expand...
Click to collapse
This is NOT the answer. His battery in the image has dropped 7%. If he hasn't used the screen much it is perfectly understandable that screen might not be a large percentage of that 7%. As he uses the phone more screen will use a larger percentage of his battery and Android OS will use less.
If he gets to the point where the screen is on for an hour or two and the percentages are still like this then yes there is a problem.
Sent from my Nexus 4 using Tapatalk 2

joshnichols189 said:
This is NOT the answer. His battery in the image has dropped 7%. If he hasn't used the screen much it is perfectly understandable that screen might not be a large percentage of that 7%. As he uses the phone more screen will use a larger percentage of his battery and Android OS will use less.
If he gets to the point where the screen is on for an hour or two and the percentages are still like this then yes there is a problem.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
My android system has never been that high, regardless if I used the phone for 10 minutes or 10 seconds , or not at all.

atw1927 said:
Hi there; this is my first post so please go easy on me.
Bought a Nexus 4 which is my first Android device, but the battery life is bugging the hell out of me. Surely the screen should always be at the top, right? I left it to sleep overnight on a full charge to find that it had shot down to 60% when I woke up at 7 this morning.
I haven't rooted or flashed or anything like that, because as I said, I'm an Android virgin. I have location settings off, only Gmail syncing and the usual push notifications here and there. Nothing too fancy or strenuous.
Any help on how I can go around fixing this? I'm a little afraid to rooting/flashing/ROMs etc, because I've no clue what works best.
Cheers!
Click to expand...
Click to collapse
Actually No the "Screen" should not always be at the top of the stat list. If you use the phone more than it idles, then yes... but if you are like me, mine says "Phone Idle: 20%" (which is on top) and "Screen" is 4th on the list with 12% (Wi-Fi and Cell standby above it) [this is my personal phone, and I mostly use my work phone. hence the high Idle & standby]
I was having an issue with my phone running out of battery, with very little usage from it. I mean very little, I might make 2 calls from it each day, and respond to an email now and then. I found that an App was preventing my Screen from going into "Deep Sleep" or even "Sleeping" possibly. So I uninstalled all apps (well I only had like 4 additional apps installed), except for 2 that I need (Google Voice & Drive). Powered off the phone, charged it fully, then powered back on. Its been running on the same charge for 24+hrs now and reads 68% battery remaining.
So check the apps you have installed, some use background data, and might be causing problems...

Crisisx1 said:
My android system has never been that high, regardless if I used the phone for 10 minutes or 10 seconds , or not at all.
Click to expand...
Click to collapse
And your phone is the definitive guide for what Android OS usage is? Maybe his phone woke up those services for a period of time longer than normal.
The answer of "lol looks wrong root and install kernel" is terrible advice when so little information is given.
Sent from my Nexus 4 using Tapatalk 2

What else would you like to know?

atw1927 said:
What else would you like to know?
Click to expand...
Click to collapse
A longer battery graph would help a lot. If yuppy want top search XDA there is a free app called better battery stats that will help you diagnose if something is running in the background eating battery or even if your phone I'd properly entering deep sleep.
Sent from my Nexus 4 using Tapatalk 2

Better Battery stats and battery screenshots here

atw1927 said:
Better Battery stats and battery screenshots here
Click to expand...
Click to collapse
See now it is much easier to see that you actually do have a problem and what it is. You have the wakelock problem as you can see from Better Battery Stats which falls under Android OS on the other screen. It also appears that you have somewhat weak signal which could cause the wakelock to drain battery even more. There's not much you can do about that wake lock, some kernels have patches for it but those have their own issues as well.
Sent from my Nexus 4 using Tapatalk 2

Could I just install any kernel on stock android and be OK with it? As I've said I've no idea what's best for me; just something nice and clean that doesn't have issues like this. I live onsite where I work so my WiFi is pretty much on all the time if that helps in anyway whatsoever
I'm gonna let it run down completely tonight and charge it, but I don't expect it to help much.

joshnichols189 said:
And your phone is the definitive guide for what Android OS usage is? Maybe his phone woke up those services for a period of time longer than normal.
The answer of "lol looks wrong root and install kernel" is terrible advice when so little information is given.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
I never told him to install a kernel. The advice I gave is to do a reset then I asked if he was rooted or running a custom rom or kernel because that might of been the problem.
Sent from my SGH-T999 using xda app-developers app

Bump

Fully charged overnight, battery still sinking like a ship. 45 minutes and I'm already down to 94% already!
Idiot question; will installing a kernel just solve this? For now as a new guy I'd like to keep it as stock as possible before fiddling with it.

atw1927 said:
Fully charged overnight, battery still sinking like a ship. 45 minutes and I'm already down to 94% already!
Idiot question; will installing a kernel just solve this? For now as a new guy I'd like to keep it as stock as possible before fiddling with it.
Click to expand...
Click to collapse
The battery on the n4 seems horrible.
I'm completely stock I just got my phone yesterday, I charged it to 100% now its at 64% battery with only 47 minutes of screen on time.
on the s3 I would be around 83% with 47 minutes of screen on time.
I'm gonna unlock the boot loader and root soon and try Franco kernel I've been reading good things about it.
Sent from my Nexus 4 using xda app-developers app

The battery life on the stock kernel isn't great because the CPU management isn't optimized well. It ramps up the CPU (frequency, number of active cores...) very easily and keeps it there long, which removes the occasional lag but sucks more battery. Flashing a more battery friendly kernel would definitely help you if that is the root of your battery issues and not a badly coded app.
Franco's kernel is a very popular one, and very battery friendly compared to stock (and that doesn't mean you lose performance). It is the one I'm currently using. Most people report of screen on times of 4 or 5 hours. With not so heavy usage and wifi (not 3g) I can also pass 5 hrs.
To install a kernel you need to unlock your boot loader and install a custom recovery. No need to root, but.. why not since you're at it
You can try different kernels with the stock ROM. You don't necessarily need a custom ROM. Just be careful to read the dev's OP and instructions, and definitely not to flash a kernel for another device.
Also another thing that reduces battery is your mobile data, if there are a lot of programs that sync on the background. You can use a program that turns off your mobile data when your screen is off and switch it back on just for a sync every xx minutes. Juice Defender is such app, though I like to use Tasker for that. If you use Tasker and are interested in that project, ask or send me a pm. It works great.

How to get epic battery life?

Hey guys,
I see some people here have AMAZING battery life. Some people are getting 4+ hours screen on time with a single charge.
I only get around 2 - 2.5 hours screen on time. Which is good, but not as good as other people.
I am using the latest Paranoid Android ROM, and I have tried many different kernels but battery life is the same with all of them. I tried undervolting, still the same battery life.
All location/gps settings are OFF. The only syncing I have is Facebook syncing every 4 hours. I checked the battery stats, and everything is normal. I checked Better Battery Stats and everything is normal too, no unusual wakelocks or anything like that.
I checked my cpu bin in terminal, and it has been binned as a 'FASTER' cpu.
I have very good signal all the time. Always use WiFi, never mobile data. Bluetooth, NFC are OFF, and brightness is autobrightness.
So after all this, why am I not getting amazing battery life like others?
Thank you!

harro3 said:
Hey guys,
I see some people here have AMAZING battery life. Some people are getting 4+ hours screen on time with a single charge.
I only get around 2 - 2.5 hours screen on time. Which is good, but not as good as other people.
I am using the latest Paranoid Android ROM, and I have tried many different kernels but battery life is the same with all of them. I tried undervolting, still the same battery life.
All location/gps settings are OFF. The only syncing I have is Facebook syncing every 4 hours. I checked the battery stats, and everything is normal. I checked Better Battery Stats and everything is normal too, no unusual wakelocks or anything like that.
I checked my cpu bin in terminal, and it has been binned as a 'FASTER' cpu.
I have very good signal all the time. Always use WiFi, never mobile data. Bluetooth, NFC are OFF, and brightness is autobrightness.
So after all this, why am I not getting amazing battery life like others?
Thank you!
Click to expand...
Click to collapse
Because you use the phone and the others no! I have similar battery life. I get 3 hours screen on time.
Try cyanogenmod. For me is the best rom.

Heres a few things that help me:
make sure if your on a ROM that has it to disable cell broadcasts in wireless & network settings.
In Google sync settings, uncheck everything you don't use or can manually sync. The only things I leave checked are gmail, contacts & calendar.
If you've opened maps, make sure to back all the way out of it & swipe it away from your recent tasks screen. Better yet, if you don't need it, uninstall it or use an alternative like mapquest app.
If you don't use Google talk, open it and sign out or uninstall it.
Try not to overdo it with widgets on your home screens. I mean a few is cool, but when u have 5 screens all jam packed with various widgets constantly running & syncing...
I know you said you've tried various kernels, but I honestly found that I got the best screen on time with Franco r86 kernel (just over 4hrs). I'm not a huge kernel fan so I haven't really tried others, but I was only getting just over 3 hrs on stock.
Sent from my Nexus 4 using xda app-developers app

harro3 said:
Hey guys,
I see some people here have AMAZING battery life. Some people are getting 4+ hours screen on time with a single charge.
I only get around 2 - 2.5 hours screen on time. Which is good, but not as good as other people.
I am using the latest Paranoid Android ROM, and I have tried many different kernels but battery life is the same with all of them. I tried undervolting, still the same battery life.
All location/gps settings are OFF. The only syncing I have is Facebook syncing every 4 hours. I checked the battery stats, and everything is normal. I checked Better Battery Stats and everything is normal too, no unusual wakelocks or anything like that.
I checked my cpu bin in terminal, and it has been binned as a 'FASTER' cpu.
I have very good signal all the time. Always use WiFi, never mobile data. Bluetooth, NFC are OFF, and brightness is autobrightness.
So after all this, why am I not getting amazing battery life like others?
Thank you!
Click to expand...
Click to collapse
I use the greenify app to hibernate facebook and words with friends it helps somewhat on battery life

I recently discovered that if I reduce the brightness down to 50% (which is still very BRIGHT), I can get an extra 30% battery life.
Simple, and yet, effective

Turn the brightness down - even 10pct is plenty bright indoors.
Sent from my Nexus 4 using xda app-developers app

Flash matrix kernel
Sent from my 3rd Nexus 4 using Tapatalk 2

lowrider262 said:
Heres a few things that help me:
make sure if your on a ROM that has it to disable cell broadcasts in wireless & network settings.
In Google sync settings, uncheck everything you don't use or can manually sync. The only things I leave checked are gmail, contacts & calendar.
If you've opened maps, make sure to back all the way out of it & swipe it away from your recent tasks screen. Better yet, if you don't need it, uninstall it or use an alternative like mapquest app.
If you don't use Google talk, open it and sign out or uninstall it.
Try not to overdo it with widgets on your home screens. I mean a few is cool, but when u have 5 screens all jam packed with various widgets constantly running & syncing...
I know you said you've tried various kernels, but I honestly found that I got the best screen on time with Franco r86 kernel (just over 4hrs). I'm not a huge kernel fan so I haven't really tried others, but I was only getting just over 3 hrs on stock.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Thanks, I have now signed out of google talk. I only have one widget at the moment and that's the clock widget. It's annoying that everyone can get 3 or 4 hours screen on time and I only get 2

harro3 said:
Hey guys,
I see some people here have AMAZING battery life. Some people are getting 4+ hours screen on time with a single charge.
I only get around 2 - 2.5 hours screen on time. Which is good, but not as good as other people.
I am using the latest Paranoid Android ROM, and I have tried many different kernels but battery life is the same with all of them. I tried undervolting, still the same battery life.
All location/gps settings are OFF. The only syncing I have is Facebook syncing every 4 hours. I checked the battery stats, and everything is normal. I checked Better Battery Stats and everything is normal too, no unusual wakelocks or anything like that.
I checked my cpu bin in terminal, and it has been binned as a 'FASTER' cpu.
I have very good signal all the time. Always use WiFi, never mobile data. Bluetooth, NFC are OFF, and brightness is autobrightness.
So after all this, why am I not getting amazing battery life like others?
Thank you!
Click to expand...
Click to collapse
Try Eugene's CPU Sleeper from the market. It turns off all but one of your cores while the screen is off to minimize cpu usage. On CM nightly with stock kernel I got 34 hours with 17% remaining and 2.5 hours screen on time til I ended up charging my phone. I run my CPU at 1350 max / 384 min.
Make sure under sound settings all the sound on touch, keypad, etc are all turned off. Each time your phone ticks a sound it uses battery. Also bright display backgrounds will use more battery.
I only sync chrome, calendar and instant upload
good luck

harro3 said:
Hey guys,
I see some people here have AMAZING battery life. Some people are getting 4+ hours screen on time with a single charge.
I only get around 2 - 2.5 hours screen on time. Which is good, but not as good as other people.
I am using the latest Paranoid Android ROM, and I have tried many different kernels but battery life is the same with all of them. I tried undervolting, still the same battery life.
All location/gps settings are OFF. The only syncing I have is Facebook syncing every 4 hours. I checked the battery stats, and everything is normal. I checked Better Battery Stats and everything is normal too, no unusual wakelocks or anything like that.
I checked my cpu bin in terminal, and it has been binned as a 'FASTER' cpu.
I have very good signal all the time. Always use WiFi, never mobile data. Bluetooth, NFC are OFF, and brightness is autobrightness.
So after all this, why am I not getting amazing battery life like others?
Thank you!
Click to expand...
Click to collapse
Clock down your device
Use conservative cpu governor or something like that,
Undervolt if necessary
Have a low brightness screen if it's possible
Sent from my Nexus 4

Flash Franco's kernel.
http://forum.xda-developers.com/showthread.php?t=2002782
Sent from my Nexus 4 using xda premium

You can also try this, it takes a few days to "learn" your routine then it supposedly starts saving battery. I'm currently in day 2 of learning mode so I don't know for sure how well it works. But it seems to be getting good reviews so far...
https://play.google.com/store/apps/details?id=com.xiam.snapdragon.app
Sent from my Nexus 4 using xda app-developers app

lowrider262 said:
You can also try this, it takes a few days to "learn" your routine then it supposedly starts saving battery. I'm currently in day 2 of learning mode so I don't know for sure how well it works. But it seems to be getting good reviews so far...
https://play.google.com/store/apps/details?id=com.xiam.snapdragon.app
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I've read the the battery guru app does nothing for your phone whatsoever...

mrjoeltan said:
I've read the the battery guru app does nothing for your phone whatsoever...
Click to expand...
Click to collapse
It just turns radios off and shuts down syncing, nothing you can't do by yourself.
Sent from my Nexus 4 using xda app-developers app

mrjoeltan said:
I've read the the battery guru app does nothing for your phone whatsoever...
Click to expand...
Click to collapse
Well it basically learns your routines and changes your sync settings, turns WiFi on/off when needed, and various other things you could do yourself but might forget. Kinda like tasker for lazy people so in theory yes it could save you some battery.
Sent from my Nexus 4 using xda app-developers app

VoiD_Dweller said:
Try Eugene's CPU Sleeper from the market. It turns off all but one of your cores while the screen is off to minimize cpu usage. On CM nightly with stock kernel I got 34 hours with 17% remaining and 2.5 hours screen on time til I ended up charging my phone. I run my CPU at 1350 max / 384 min.
Make sure under sound settings all the sound on touch, keypad, etc are all turned off. Each time your phone ticks a sound it uses battery. Also bright display backgrounds will use more battery.
I only sync chrome, calendar and instant upload
good luck
Click to expand...
Click to collapse
All those sounds are already off, that's the first thing I do
Thanks for that app, I'll try it to see if it helps.
curtzxion said:
Clock down your device
Use conservative cpu governor or something like that,
Undervolt if necessary
Have a low brightness screen if it's possible
Sent from my Nexus 4
Click to expand...
Click to collapse
I undervolted the hell out of my phone, at one time it was a -150mv undervolt.
Brightness was on auto, I've now switched to controlling it manually to see if that helps
gravitysandwich said:
Flash Franco's kernel.
http://forum.xda-developers.com/showthread.php?t=2002782
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Tried his kernel already a few weeks ago. No real change in battery.

That seems weird
I am completely stock, and set things more or less the same with you (not syncing, no gps unless needed, on wifi all the time) and I could get over 4 hours screen on time on an 18 hours battery life. I believe this phone (chipset?) is really efficient on standby. Does your phone show that it's being kept awake much using the cpu spy app?

Same here... I'm on stock and the best i got was pretty impressive i think. 49 hours with 4 hours screen on time. I waited till the phone turned off by itself Even though i don't get that with heavier use, it's still enough to take me through a whole day which is better then my old phone
My battery saving tips:
-turn off everything you're not using (wi-fi when not at home or office/school, bluetooth, gps, low brightness indoors)
-swype away apps after you exit from them
-turn off the screen when you put it down/in your pocket etc.
-turn off google now
That is everything that i do. No sync disabling, undervolting, underclocking or other tricks

Install greenify app from playstore
Sent from my Nexus 4 using XDA Premium HD app

drbrainsol said:
My battery saving tips:
-swype away apps after you exit from them
Click to expand...
Click to collapse
That doesn't do anything. Android as a native app killer. On the other side, this would lead to more battery consumption as Android would have to initalize data the next time you open that app. IMHO leave the apps as they are, Android would take care of them and kill them when required.
lowrider262 said:
Kinda like tasker for lazy people so in theory yes it could save you some battery.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
IMO it's isn't as powerful as tasker, but it's giving some extra juice.

Can someone help explain why my battery drains so fast

My SoT is 20 mins, media server has been running for 30 mins.
I have 3G, BT, WiFi , GPS and Google now on all the time. My S3 is able to get a constant 24 hours with the same use.
It seems that the nexus 4 idles OK, but plummets when anything is being used.
I'm using stock ROM, rooted with Franco kernel M1.
I've tried using better battery stats but it keeps resetting every time I open it, making it kinda useless.
Anyone have any idea why the media server uses so much or why its draining so quick?
Thanks

spoonboy said:
My SoT is 20 mins, media server has been running for 30 mins.
I have 3G, BT, WiFi , GPS and Google now on all the time. My S3 is able to get a constant 24 hours with the same use.
It seems that the nexus 4 idles OK, but plummets when anything is being used.
I'm using stock ROM, rooted with Franco kernel M1.
I've tried using better battery stats but it keeps resetting every time I open it, making it kinda useless.
Anyone have any idea why the media server uses so much or why its draining so quick?
Thanks
Click to expand...
Click to collapse
Having all those settings turned on will eat your battery. Are you using BT and GPS during this usage? If not, turn them off. Also regarding mediaserver, SoundCloud or other music streaming apps will engage mediaserver. When your done using said apps kill them from recents menu. Alternatively, you're rooted. I suggest you look into Greenify in the app store. you can select the apps to hibernate when not in use, it requires root.
Regarding BBS, look in settings, you may have something set up within the app thats making it reset.

Given that the battery is the same size as the s3, shouldn't it be able to keep up with it?
If I have to keep turning things off, it defeats the object for me.
I can't imagine the exynos being that much better. Like I said, an easy 24 hours with the s3 under the same usage with all the same things on.
Sent from my Nexus 4 using xda premium

You were listening to music via soundcloud so thats why media server is so high. Plus, you have GPS, Bluetooth and Google now enabled all the time! You answered your own question on why it's draining so fast.
If you don't need the services all the time, disable them until you need it.
It's the same as if you're wondering why your gas bill is so high when you leave the thermostat on at above 70 degrees Fahrenheit all winter long.
Sent from my Nexus 4 using Tapatalk 2

Thanks for the replies.
I do not understand why my s3 can do this without using half as much. Is it really that much better than a stock Google phone with the same size battery??
I use same soundcloud usage on my s3 every single morning on the commute and its usually at 89/90%. I'm ending up with 75 on the nexus 4.
If the nexus 4 battery life is rubbish, that's fine. I'm just looking for confirmation its not broken, which it appears not to be. I knew the S3 was better with battery, just wasn't expecting not being able to get through a day with the nexus 4.
Ive seen lots of pics of ridiculous SoT time, but I guess they must turn everything off.
Sent from my Nexus 4 using xda premium

Are you on 4.2.2? And how long have you had the phone?
Sent from my Nexus 4 using xda app-developers app

Hi. Yep on 4.2.2 and have been using the phone for a week.
Even with WiFi BT and GPS on this phone idles like a champ.
I'm convinced the drain isn't normal, 25 mins of sound cloud uses up more battery than the screen being on for over an hour.... Surely this cannot be right??
Its also worth noting that the phone gets quite hot - which I think is really odd seeing as all its doing is streaming audio.
I've attached some pics to demonstrate what I mean.
I really hope someone can help, I love this phone but if I cant get my normal day out of it on going to have to go back to the s3.
Thanks.
Sent from my Nexus 4 using xda premium

This may not be the phone for you, but here's what I do.
I have toggles (SwitchPro) for Wifi, BT, Data, GPS etc. that I push when I need them. I also have DS Battery Saver which helps shut down said items when screen is not in use.
I'm a Moderate user but I don't think you ever need to have all activities (GPS etc) activated when you are not using that particular activity.
With that being said, you control the battery and screen time. You just need to know how to manage it.
Hope that helps.......

Do you keep large media files on your phone? I've had mediaserver kick my battery's ass on that before if it can't for some reason properly index/understand a media file.

Use betterbatterystats or something equivalent to track your CPU usage and what frequency it's sat at most.

Nexus 7 : battery dying?

Just recently my battery dies in under 8 hours while idle. Can be at 100 percent when I leave for work and 8 hours later when I get home it's dead. I can't figure out why it's dying so fast and I looked at the battery stats and dying see anything really out of the ordinary so I'm thinking by battery is about to die out. Any ideas or suggestions?
Also stock and not rooted on 4.2.2
Update: using better battery stats app it says 100% awake when screen is off but doesn't tell what's keeping it on.
Sent from my Nexus 7 using xda premium

rexant1 said:
JUpdate: using better battery stats app it says 100% awake when screen is off but doesn't tell what's keeping it on.
Click to expand...
Click to collapse
Post all the summary screens here and let us be the judge of that
No time spent in either kernel or application wakelocks?
BTW, I get about 7.5 hours of screen-on time with stock 4.2.2. So, only 8 hours of time AWAKE but without the screen on does seem a little excessive. It would either have to be a rogue app that causes the rate governor to pump up the clock, or perhaps as you suggest a failing battery.
How old is the device?

Sent from my Nexus 7 using xda premium
It's about 6 months old

Sent from my Nexus 7 using xda premium

rexant1 said:
Sent from my Nexus 7 using xda premium
It's about 6 months old
Click to expand...
Click to collapse
Your first and third image are nearly identical - but there sure doesn't seem to be anything significant showing up in the kernel wakelock screen.
Anything that uses more time in the Parital Wakelock screen? (not shown.)
Something to check if you suspect the battery is dying is the full charge and nearly discharged voltage range. I think Battery Widget will report that, or you can get it from
/sys/devices/platform/tegra-i2c.4/i2c-4/4-0055/power_supply/battery/voltage_now
Mine ranges from 3.58v to about 4.17v.

And I opened the voltage now file and got this 3791000
Sent from my Nexus 7 using xda premium

rexant1 said:
And I opened the voltage now file and got this 3791000
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
3.79v is about a 68% charge level on my battery - for whatever comparison that's worth. Yours was at 62% at "6:32", so maybe that's comparable. But 0% and 100% battery voltages would probably be more interesting for a "worn out" battery.
Thanks for the 2nd set of screen grabs... we're getting somewhere - I think.
WTF? The "6:35" image shows awake time of 9 minutes, 40 seconds... and the "6:34" image shows a partial wakelock of 51 min 4 sec for
NLP PendingIntentclient in com.google.android.googlequicksearchbox....
those can't possibly be from the same boot cycle. ???? Can they?
Anyway, assuming that the 6:34 image comes from the same boot cycle as the prior images at "5:43", then those 50-minute accumulated wakelocks for
NLP Pending.... and
LocationManagerService
seem extreme ... maybe ... if they happened when the screen was blanked ... dunno at this point.
I would run a test where you charge the battery and let it sit for 4-5 hours with the screen off the whole time, and then collect all those Better Battery Stats images in one go. If you see long wakelocks (tens and tens of minutes) while the device is supposed to be sleeping, those are the things I would investigate first.
I'm not sure where that NLP Pending... thing comes from, but since you are on pure stock... after you have collected the BatteryStats statistics and have a good hunch, you could try clearing cache and or data for the specific app you think might be involved.
(e.g. perhaps something like Settings -> Apps -> (All Tab) -> Google Search)
Because you have a pure stock tablet (and have just one recourse if things go South) don't go willy-nilly deleting app data and cache for system apps if you are not sure what the subsystem is. You don't want to get into a wedged boot having not backed up your SD card, because the only way to rectify that on a stock tablet will be to take a (stock) "factory reset" - which wipes EVERYTHING INCLUDING /sdcard.
good luck

Yeah they are from the same boot cycle and I've been on the battery for about 5 hours and haven't touched it except to reply here and I'm down to 35% since being off the charger from a full charge.
Sent from my Nexus 7 using xda premium

Horrendous Battery Life.

So I see some people on here getting 9+ hours of screen on time on here. That is AMAZING. I know basically everything has to do the user. But I have attached some screenshots with about 30% battery left. I was wondering if anybody could help me out. Or any out of the ordinary tips.

it looks like you're using your phone a lot, and should get over 4 hours of screen on time. Perhaps you can reduce your screen brightness or something, turn off GPS, location reporting etc.
BTW, theres no way anyone would get 9 hours screen on time on a note 3, with reasonable screen brightness. I average 5 hours, less if I'm using more system taxing apps.

I assume if your on xda your rooted. My saving grace is under clocking. I use my tablet for gaming but I have about an two hours of screen on time, four hours of talk time and about an hour of maps and I'm currently sitting at 73%. Also if you don't want to run a custom rom freeze everything you'll never use and greenify everything keeping your phone awake. With light usage I can get 4 days on a charge. As soon as I get money in going to get the 10 mha battery. There is a review on xda where the guy could get 2 days of screen on time and like a day and a half of gps/map usage.
Sent from my SM-N900V using XDA Premium HD app

I would start with quick things to check....disable GPS/location settings, disable Sync altogether(via status bar toggle) if you don't mind not getting your Twitter updates(see it's using 3% of battery in your screenshot), disable NFC if it's on, turn off WiFi and Bluetooth when not connected
Also check out your RED mobile data signal in your screenshot and see if you can fix that, "signal hunting" when your phone doesn't have a good data signal really hurts battery life greatly
Next I would install an app like Wakelock Detector, open it, and change the view to "Wakeup Triggers" and after your phone has lots of time with the screen off, come back to it and see what's causing your phone to "wake up" when it's trying to "sleep" when screen=off

czach5932 said:
I assume if your on xda your rooted. My saving grace is under clocking. I use my tablet for gaming but I have about an two hours of screen on time, four hours of talk time and about an hour of maps and I'm currently sitting at 73%. Also if you don't want to run a custom rom freeze everything you'll never use and greenify everything keeping your phone awake. With light usage I can get 4 days on a charge. As soon as I get money in going to get the 10 mha battery. There is a review on xda where the guy could get 2 days of screen on time and like a day and a half of gps/map usage.
Sent from my SM-N900V using XDA Premium HD app
Click to expand...
Click to collapse
I'll definitely try this. And yup rooted running eclipse. Thanks again
Sent from my SM-N900V using xda app-developers app

What do you suggest I under clock to? And what app to do so? Also what about I/o schedulers and governor. And by under clocking you mean lowering the max could rate right? Or the min too.

Here are a few screenshots on my wakelocks after about 10 min.

XzxBATTxzX said:
Here are a few screenshots on my wakelocks after about 10 min.
Click to expand...
Click to collapse
Wow Kik caused 4523 triggers in just 4 hours lmao, and switch that view to "wakeup triggers" is how i gauge it better, but with the view that you're on there...you can tap the name of the app for more info on what it's doing exactly like "Alarmmanager" or w/e the app is doing
Edit: also ditch Google Music if you play music from SDcard/locally like me....i use Beat instead, free app

I use rom toolbox pro and I under clock to 1036 mhz with cfq scheduler and interactive governor. Rom toolbox pro is great at about everything you need to do and greenify pro with xposed features help a lot
Sent from my SM-N900V using XDA Premium HD app

lmike6453 said:
Wow Kik caused 4523 triggers in just 4 hours lmao, and switch that view to "wakeup triggers" is how i gauge it better, but with the view that you're on there...you can tap the name of the app for more info on what it's doing exactly like "Alarmmanager" or w/e the app is doing
Edit: also ditch Google Music if you play music from SDcard/locally like me....i use Beat instead, free app
Click to expand...
Click to collapse
I would but I use Google play all access unless you have a good free music downloader to suggest.

XzxBATTxzX said:
I would but I use Google play all access unless you have a good free music downloader to suggest.
Click to expand...
Click to collapse
+1 for beats. I used MOG for a long while before beats bought them out. Combine that with folder mount and I can store all my music to my sd card. To bad I couldn't transfer my music from mog to beats and have not had time to re download but I had about 50 gig of music before the switch over.

what happed to me
XzxBATTxzX said:
So I see some people on here getting 9+ hours of screen on time on here. That is AMAZING. I know basically everything has to do the user. But I have attached some screenshots with about 30% battery left. I was wondering if anybody could help me out. Or any out of the ordinary tips.
Click to expand...
Click to collapse
when I used xposed one of the items must have caused it as after I took them off the battery works fine (two days if I am carefully) charging once at night gives full day (plus) on battery.

Gladyscoleman said:
used you cell phone always battery saving mood.
Always keep lock your cell when you busy
Click to expand...
Click to collapse
Uhm... What?!?
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