Database Users

my battery drains so fast

hello everyone.
i just got the note a week ago. a friend of mine upgrade it to 2.3.6
i dont know much about room and root and kernel and all this. (noop)
the phone drains battery so fast . and i dont even use WiFi or internet or anything or Bluetooth or gaming. i just get few short calles thats it. and it last for 16 hrs ????
dont know why. here is some screen shots from everything. it might tells u what the problem are>
i hope u can recommend the best room or root or kernel for me to make the most out of my battery > or go on stock or what. idk. help me

Why don't you try hardcore's speedmod kernel, (see in in development forum) ?
Sent from my GT-N7000 using xda premium

try a different kernel like franco or abyssal

so all i need is kernal?
so all i need is to change the kernel ?
witch is the best for battery
franco or abyssal
or
hardcore's speedmod kernel
and where i can download them?
and how to replace the kernel with the new one?
im sorry i know im a pain in the a$$
it just im new to this. thnx for replying and helping

مرحب أخى
Replied to your post on mobile guide forum
I use Franco Kernel for a month now and battery last to the end of the day with not too much use

I see your using GO Launcher.
I've had my note a little over a week, when I first got it I went a bit nuts and grabbed every app left right and centre. Including GO Launcher, I ended up in a similar position as you though - my battery would drain completely in around 6-8hours (of heavy usage mind you).
Last night I uninstalled all the GO features and I'm now back on the stock TWLauncher, after nearly 12hours, I still have around 60% battery with similar usage.
Many things affect how quickly the battery drains - most notably, how much you use it. But also if your in an area with weak/no signal it can potentially drain your battery as the phone constantly seeks a signal. (Had this issue with the Galaxy Ace).

Get rid of go launcher and the animated wallpaper
Sent from my GT-N7000 using XDA

thermax04 said:
مرحب أخى
Replied to your post on mobile guide forum
I use Franco Kernel for a month now and battery last to the end of the day with not too much use
Click to expand...
Click to collapse
many thnx to u brother . i just read your reply at mobile guide. thnx for the quick reply.

just instaled the franco kernel
just flashed the kernel . and im amazed by it . the battery is 29%.
in the battery usage it says 18hrs
cant wait to see how it'll be after full charge . will update u with the results
thnx for the help guys . XDA ROCKSSSSSSS

poope said:
Get rid of go launcher and the animated wallpaper
Sent from my GT-N7000 using XDA
Click to expand...
Click to collapse
i did get rid of it > hope it helps too

Try all the different kernels , they can make a huge difference and each phone is different
From the big ole Note

something strange happens today. and it has been almost a half day since i've flashed franco kernel .
and the temp went up to 102? is that normal i felt the heat up to my ear while i were on a call, it didnt happen b4. i used the WiFi for like 10 min?
. hope someone tells me whats wrong

You should'nt have to flash kernels and whatnot, my note performs best when left stock...Just be carfull.with some badly programmed apps.
Sent from my GT-N7000 using XDA

Mr_ManSHSter said:
something strange happens today. and it has been almost a half day since i've flashed franco kernel .
and the temp went up to 102? is that normal i felt the heat up to my ear while i were on a call, it didnt happen b4. i used the WiFi for like 10 min?
. hope someone tells me whats wrong
Click to expand...
Click to collapse
There are two things I found that helped temperature...
1) Turn off the Note and charge it for an hour or so to get to full charge
Use it for a while and if it is still hot....
2) Reboot into Recovery mode (I use CWM) and then clear the Davlik cache
I did have temp problems and screen sleeps with Franco 10, so have gone back to Franco 6 - it was very good on my phone. As you will read, every phone seems to be unique - some kernels are great on one phone and not so good on others.... Just make sure to take a good backup and test it before trying anything new.
Another tip for improved performance...
Disable wi-fi when you don't need it and wi-fi sharing (I use Titanium Backup but there are others out there) - I found this made a big difference - maybe 5-10%.
Good luck.

TempusFudgeIt said:
There are two things I found that helped temperature...
1) Turn off the Note and charge it for an hour or so to get to full charge
Use it for a while and if it is still hot....
2) Reboot into Recovery mode (I use CWM) and then clear the Davlik cache
I did have temp problems and screen sleeps with Franco 10, so have gone back to Franco 6 - it was very good on my phone. As you will read, every phone seems to be unique - some kernels are great on one phone and not so good on others.... Just make sure to take a good backup and test it before trying anything new.
Another tip for improved performance...
Disable wi-fi when you don't need it and wi-fi sharing (I use Titanium Backup but there are others out there) - I found this made a big difference - maybe 5-10%.
Good luck.
Click to expand...
Click to collapse
thnx for your help. and the quick reply. im on franco 9 right now.
the problem is idk how to backup my data and programs . the point is im new to android . i did flash it with a friend's help. it was easy tho. but still.
would u recommend me good app to backup my programs b4 i flash it.
cuz i've read i need to do the wipe and clear Davlik cache. i didnt do that. cuz the friend who helped me didnt tell me too. so i just flashed >
what u recommend me 2 do?

Mr_ManSHSter said:
thnx for your help. and the quick reply. im on franco 9 right now.
the problem is idk how to backup my data and programs . the point is im new to android . i did flash it with a friend's help. it was easy tho. but still.
would u recommend me good app to backup my programs b4 i flash it.
cuz i've read i need to do the wipe and clear Davlik cache. i didnt do that. cuz the friend who helped me didnt tell me too. so i just flashed >
what u recommend me 2 do?
Click to expand...
Click to collapse
There are a number of ways of doing it... personally i use two...
1) ClockWorkMod backup
2) Titanium backup
The first one is a great way to get a total backup of everything if you need to get back to previous setup, the second is the same but also great for backing up individual apps and better... freeezing them so they dont run!

try using the kernel abyssnote 4.2, I was using the Franco thought it was going like the battery in stock, with an abyss felt great savings
http://forum.xda-developers.com/showthread.php?t=1362424&highlight=abyssnote+kernel+4+2
AbyssNote kernel 4.2 Final CW Touch Original Logo:
http://www.mediafire.com/?c65mndvpk6ocbaa
Changelog v4.2 Final:
Changed Camera frequency to 800 Mhz for battery save
Changed Touch frequency to 800 Mhz for battery save
Changed OTG frequency to 800 MHz for battery save
Lower automatic brightness
Sd Card mount fix (workers finally…)

Mr_ManSHSter said:
thnx for your help. and the quick reply. im on franco 9 right now.
the problem is idk how to backup my data and programs . the point is im new to android . i did flash it with a friend's help. it was easy tho. but still.
would u recommend me good app to backup my programs b4 i flash it.
cuz i've read i need to do the wipe and clear Davlik cache. i didnt do that. cuz the friend who helped me didnt tell me too. so i just flashed >
what u recommend me 2 do?
Click to expand...
Click to collapse
hi,(i tried PM reply 2 u,but not sure its goin.so this post)
i saw ur screenshots.
as u r on a custom rom,i cant compare my Note 2 urs.
I am on foll stock rom (screenshot attached)
u can try going back to stock rom(download from dr ketans thread)
run the note as stock for 48 hrs n see how battery lasts.
if there is huge battery drain then also,show it to samsung.
if not,install apps one by one,keeping few hours in between.u can easily detect battery drain of some app like that.
personally i use go-launcher n find it to be very less battery consuming.
yesterday i've installed an antivirus and is watching out for battery drain now.
hope this helps...

Siyah vs. CM9 Remix | for Resurrection

Hey this is a thread for all the Resurrection lovers out there to discuss what Kernel goes best with Resurrection ROM
I've tried several Kernels by myself but couldn't come to a conclusion which is better in which aspects.
So lets discuss openly the pros and cons of each Kernel
If you have tried any other kernel other than CM9 and Siyah please put your opinions as well.​

Nice post! I'd be interested to see the results from ppl as I just updated to latest 1.7 remix and this time have left the CM9 kernal. I did think about flashing siyah straight after 1.7 package but decided to give CM9 a trial first
Will report in a few days!

deckio007 said:
Nice post! I'd be interested to see the results from ppl as I just updated to latest 1.7 remix and this time have left the CM9 kernal. I did think about flashing siyah straight after 1.7 package but decided to give CM9 a trial first
Will report in a few days!
Click to expand...
Click to collapse
I'm a Siyah fan too but after reading few reviews considered to give a try with CM9 will see how it goes

I'm currently using the stock CM9 with 1.7 and found it to feel pretty good so far, messed up a little yesterday when the phone froze while playing a video.
Before freezing the phone had 50% battery after removing the battery and restarting, the battery had dropped to 15%
I'm still a bit of a noob to all this so go easy
When flashing a new kernel, do I just put the zip on the card and flash?
Or do I need to wipe anything first?

This is my personal opinion, not trying to put anyone down.
Okay tried CM9 Remix kernel for few hours and already fedup :\
I see no better battery life compared to Siyah kernel, in fact CM9 Remix Kernel had lesser support than Siyah.
Lets see;
Siyah -
CWM touch recovery (and full support)
additional cpu governors (lulzactive,smartassV2,etc..)
Overclocking upto 1.6
support for BLN(Back light notifications)
CM9 Remix -
NO CWM touch recover and some of the CWM features are not available
NO additional CPU governors
NO overclocking
NO support for BLN
So for me CM9 Remix kernel isn't the one.
as i have tried Siyah kernel already im going to give Abyss or some other Kernel a try and will update on how it goes

This is a really difficult conversation because there are so many variables.
1) Kernels - each one has configurations so you need to mention what governor you are using and any other mods that you have done to the basic kernal config. Or if you are using it stock without changes you could state that.
2) Apps - all of us have different apps installed and some apps make demands on the system when it is supposed to be "sleeping". Dedicated battery enthusiasts use CPU Spy and Better Battery Stats to try to figure out what is eating the battery all the time. Then they freeze those apps until they are needed.
3) Usage - I'm retired, so I play with my phone a lot....spend an hour a day just reading XDA. I must turn it on at least 30 times between charges. Others have to work, so they put it in their pockets and leave it alone for a while. Some folks play 3D games which consume power like crazy. Using phone data eats more power than wifi. A black background on your screen eats less than a white background... and so on.
So this is not a simple conversation. The more you tell about your situation, the more others can see if it applies to them.
(PS - I´m not talking much about my setup because I'm still on RR 1.1 with Siyah 3.0.1+. I´m trying various governors to see which works best - currently on lutzactive. I'm usually down to around 45% at bedtime which is fine with me.....If I leave the phone alone and just use it as a phone, I can probably go 24 hours.

Siyah: Feature packed, lots of fluff, but very nice options as mentionned earlier.
CM9: Basic, VERY BASIC kernel. Gets the job done and most people sync their base with it.
I personally use CM9 with Siyah, works great.

karendar said:
Siyah: Feature packed, lots of fluff, but very nice options as mentionned earlier.
CM9: Basic, VERY BASIC kernel. Gets the job done and most people sync their base with it.
I personally use CM9 with Siyah, works great.
Click to expand...
Click to collapse
Yeaaa, I agree with You
Siyah Kernel works great with My S2

quijote1 said:
This is a really difficult conversation because there are so many variables.
1) Kernels - each one has configurations so you need to mention what governor you are using and any other mods that you have done to the basic kernal config. Or if you are using it stock without changes you could state that.
2) Apps - all of us have different apps installed and some apps make demands on the system when it is supposed to be "sleeping". Dedicated battery enthusiasts use CPU Spy and Better Battery Stats to try to figure out what is eating the battery all the time. Then they freeze those apps until they are needed.
3) Usage - I'm retired, so I play with my phone a lot....spend an hour a day just reading XDA. I must turn it on at least 30 times between charges. Others have to work, so they put it in their pockets and leave it alone for a while. Some folks play 3D games which consume power like crazy. Using phone data eats more power than wifi. A black background on your screen eats less than a white background... and so on.
So this is not a simple conversation. The more you tell about your situation, the more others can see if it applies to them.
(PS - I´m not talking much about my setup because I'm still on RR 1.1 with Siyah 3.0.1+. I´m trying various governors to see which works best - currently on lutzactive. I'm usually down to around 45% at bedtime which is fine with me.....If I leave the phone alone and just use it as a phone, I can probably go 24 hours.
Click to expand...
Click to collapse
I totally agree with you.
I use my phone very often too. not to play games but to text, listen to music, and i leave the phone data connected always to use IM services.
I'm sure it must be same with any regular user.
I love to play around with my phone as in trying out new stuff on it
This time its the Kernels and OSs that im testing on currently checking Abyss Kernel and already noticed that the soft key lights should be turned on time to time by going to settings :\
will see how well it does in other aspects

melakamc said:
I totally agree with you.
Im use my very often too. not to play games but to text, listen to music, and i leave the phone data connected always to use IM services.
I'm sure it must be same with any regular user.
I love to play around with my phone as in trying out new stuff on it
This time its the Kernels and OSs that im testing on currently checking Abyss Kernel and already noticed that the soft key lights should be turned on time to time by going to settings :\
will see how well it does in other aspects
Click to expand...
Click to collapse
Did you try Siyah with RR 1.7 before going to Abyss? What were your impressions of the usual kernels that you tried? Apparently 1.7 is working well for you?

quijote1 said:
Did you try Siyah with RR 1.7 before going to Abyss? What were your impressions of the usual kernels that you tried? Apparently 1.7 is working well for you?
Click to expand...
Click to collapse
I've been using Siyah with RR 1.2 and 1.5 and battery life came upto 8-10hrs
wanted to try a different kernel and chose CM9 Remix which was in the download section of the RR thread and it was an utter disappointment for ME (others might like it)
refer to my earlier post for results.
currently im testing Abyss and will update on how it goes tonight

which one is the best?

meatlover said:
which one is the best?
Click to expand...
Click to collapse
It depends on user. Im a heavy user and a need freak so CM9 Remix didnt do much good to me trying Abyss at the moment. Await for results

This is very useful and im waiting for updates

AbyssICS (2.6b)
Okay lets see how Abyss worked out for me.
After the utter dissatisfaction over CM9 Remix kernel Abyss was quite impressive with battery consumption.
there's always a BUT
1. the softykey lights were never on even though i change settings, it stays on till the phone display sleeps and even of you turn the screen on again the lights never come back :\
2. Settings -> Storage always keeps force closing and you cant see the stuff in the external SD card even by using a file explorer (root explorer)
3. I didnt like the screen which comes saying some official italian bla bla when you restart the phone that got a very bad design
soooooooo im switching to Siyah-v3.2b4 after seeing its all new cool features and i found a great article on how to get the best out of the kernel
ill share it here : http://forum.xda-developers.com/showthread.php?t=1369817

using cm kernel
got 54 hours earlier with moderate use
haven't had any issue so far been using for 4 or 5 days.

hassanal said:
using cm kernel
got 54 hours earlier with moderate use
haven't had any issue so far been using for 4 or 5 days.
Click to expand...
Click to collapse
WHAT? 54hrs? NOWAY IN HELL
used any tweaks?

melakamc said:
WHAT? 54hrs? NOWAY IN HELL
used any tweaks?
Click to expand...
Click to collapse
No tweaks, but the screen on time suggests that the phone has been on standby most of the time, with no Data.
I always tend to have a fantastic battery performance too when I leave the phone on standby, with no Wifi or Data use.
Regards.

buzzboy said:
No tweaks, but the screen on time suggests that the phone has been on standby most of the time, with no Data.
I always tend to have a fantastic battery performance too when I leave the phone on standby, with no Wifi or Data use.
Regards.
Click to expand...
Click to collapse
That must be it, i use Data connection all the time and my screen is on most of the time

I used the stock cm9 for a while on v1.7 RR and found the battery to last quite well, decided to try siyah 3.1.2 a couple of days ago and day by day it is getting better but not sure its as good as the cm9 yet....gonna stick with it for now and see as it has more options.
Sent from my GT-I9100 using XDA

[Q] Anyone can explain ? :)

So I have had my Nexus 4 for 7 exact days, was suffering from a terrible battery life of 1:30 hrs MAX screen-on. Until I flashed CM10.1+Franco's latest kernel and my phone has a 3:30 hrs of screen time on ! - I tried AOKP with Faux and some other rom combinations...Any one can explain why?
And clearly the battery life on WIFI surpasses the one on 3g.

It probably has a lot to do with the "msm_hsic_host" kernel wakelock that is present on the stock kernel. Flashing to either franco or faux kernel is supposed to be a great way to fix it and increase battery life

Because Franco Kernel is like magic?
Edit: oh hey! you're the same guy from yesterday I suggested Franco Kernel to and pm'd me for additional tips

Ensifolk said:
So I have had my Nexus 4 for 7 exact days, was suffering from a terrible battery life of 1:30 hrs MAX screen-on. Until I flashed CM10.1+Franco's latest kernel and my phone has a 3:30 hrs of screen time on ! - I tried AOKP with Faux and some other rom combinations...Any one can explain why?
And clearly the battery life on WIFI surpasses the one on 3g.
Click to expand...
Click to collapse
1:30 screen time Max? Damn.... Do you use your phone as a satellite? And WiFi IS ALWAYS better on the battery than 3g, that goes for any phones.
Sent from my Mako Nexus quattro using Tapatalk 2!

barondebxl said:
1:30 screen time Max? Damn.... Do you use your phone as a satellite? And WiFi IS ALWAYS better on the battery than 3g, that goes for any phones.
Sent from my Mako Nexus quattro using Tapatalk 2!
Click to expand...
Click to collapse
Wasn't even using my phone for anything but Browsing/Facebook/Whatsapp! LOL - And thanks guys for the reply, and yes Im the guy who pmd you man! Thanks a lot! Will give Faux a go right now And check how things will work....

Ensifolk said:
Wasn't even using my phone for anything but Browsing/Facebook/Whatsapp! LOL - And thanks guys for the reply, and yes Im the guy who pmd you man! Thanks a lot! Will give Faux a go right now And check how things will work....
Click to expand...
Click to collapse
I suggest using https://play.google.com/store/apps/...yLDEsImNvbS5iaWdleWVzMHgwLnRyaWNrc3Rlcm1vZCJd with those kernels. I use Franco's paid app but Trickster is a good free alternative!

zephiK said:
I suggest using https://play.google.com/store/apps/...yLDEsImNvbS5iaWdleWVzMHgwLnRyaWNrc3Rlcm1vZCJd with those kernels. I use Franco's paid app but Trickster is a good free alternative!
Click to expand...
Click to collapse
Thanks for the suggestion. Tinkering with phone settings is not in my priority list, but knowing what the kernel is doing with my phone is definitely useful if I decide to tinker later.
And free phone state knowledge is priceless (as in it has no list price :cyclops

KyraOfFire said:
Thanks for the suggestion. Tinkering with phone settings is not in my priority list, but knowing what the kernel is doing with my phone is definitely useful if I decide to tinker later.
And free phone state knowledge is priceless (as in it has no list price :cyclops
Click to expand...
Click to collapse
Not sure if it has the ability to disable logging and events (i think it does). You can disable those two features for better battery life (very insignificant but every bit helps, right?) and you can disable fsync if you choose to (more IO speed, less stability mainly if your phone was to randomly reboot).
Plus the free color changing is always nice to have.

3 to 4 hours with screen on is normal battery life for a stock Nexus 4.
It sounds like you were running something that was draining the battery.
When you updated the phone, the new ROM turned off the culprit.
The battery drain is not necessarily caused by an app, it could be one
of the Google services or bad reception. Even changing the phone's default
settings can result in much better battery life.

This might be a stupid question, but could switching from stock kernel/ROM fix my antenna radio reception bull**** issues?
Sent from my Nexus 4 using xda app-developers app

Kernel &battery saving Q's...

בס"ד
Hey. So I wanted to buy the nexus 4 , and then I've heard that the battery life is suck.
I found out that it could be fixed by installing a custom kernel.
I'd like to apply a cusom kernel
that saves -Alot- of battery , doesnt change anyting specific but the battery usage.
and to still stay with the Original Rom.
Any suggestions? Thanks.

TunneIVision said:
בס"ד
Hey. So I wanted to buy the nexus 4 , and then I've heard that the battery life is suck.
I found out that it could be fixed by installing a custom kernel.
I'd like to apply a cusom kernel
that saves -Alot- of battery , doesnt change anyting specific but the battery usage.
and to still stay with the Original Rom.
Any suggestions? Thanks.
Click to expand...
Click to collapse
try them all out, they are all good. the thing is, all our devices react differently, and all our usages vary with as many users as there are. so the only way that you would find YOUR perfect kernel that YOUR device likes the best is to try them all out. it takes seconds to flash, so time isnt an issue. try one every few days, youll find the one thats for you.

simms22 said:
try them all out, they are all good. the thing is, all our devices react differently, and all our usages vary with as many users as there are. so the only way that you would find YOUR perfect kernel that YOUR device likes the best is to try them all out. it takes seconds to flash, so time isnt an issue. try one every few days, youll find the one thats for you.
Click to expand...
Click to collapse
OK... but all the kernel changes something in the rom. I would like to keep my rom exactly the way it is , exept from the battery usage.

TunneIVision said:
OK... but all the kernel changes something in the rom. I would like to keep my rom exactly the way it is , exept from the battery usage.
Click to expand...
Click to collapse
You can flash any kernel you want, and the ROM will stay the same. The kernel operates "under the hood" (the engine), while the ROM is what you see (rest of the car, to use that analogy). You can use an app called Trickster Mod to tweak kernel settings. Be sure to know what you're doing though, and keep a backup just in case.
Also, be sure if you flash faux or trinity kernel (that I know of), that you flash on top of a stock kernel/reset kernel. If you flash any of those on top of another custom kernel, you could get in trouble (because of the way the kernels are installed).

And the stock kernel is really not as bad as people make it out to be.
Sure custom will usually be better. But stock is not that bad. All those reports of horrid battery life I really don't know what the heck they are doing to be honest.
I used it for a while. And the other nexus 4 in the house is bone stock. It gets off the charger at 530am and needs to be charged around 4pm with around 4 hrs of screen time and 45 mins or so of candy crush.

ameinild said:
You can flash any kernel you want, and the ROM will stay the same. The kernel operates "under the hood" (the engine), while the ROM is what you see (rest of the car, to use that analogy). You can use an app called Trickster Mod to tweak kernel settings. Be sure to know what you're doing though, and keep a backup just in case.
Also, be sure if you flash faux or trinity kernel (that I know of), that you flash on top of a stock kernel/reset kernel. If you flash any of those on top of another custom kernel, you could get in trouble (because of the way the kernels are installed).
Click to expand...
Click to collapse
albundy2010 said:
And the stock kernel is really not as bad as people make it out to be.
Sure custom will usually be better. But stock is not that bad. All those reports of horrid battery life I really don't know what the heck they are doing to be honest.
I used it for a while. And the other nexus 4 in the house is bone stock. It gets off the charger at 530am and needs to be charged around 4pm with around 4 hrs of screen time and 45 mins or so of candy crush.
Click to expand...
Click to collapse
Now that the battery life is improved on 4.3 JB version , I wont be needed to a custom kernel. Thanks alot.

How to get the N4 battery life to a usable level?

Currently running PA 3.99 RC1. Used Franco kernel Linaro first, used the regular Franco Kernel today for a bit.
When I flashed PA first, I used the normal .84 radio of course. As I've seen that many had a problem with this radio with an MVNO (I use Mobile Vikings in the Netherlands, which is an MVNO from KPN), it would drain battery life immensely.
So I flashed the .48 radio (the android 4.2.2 one) back since yesterday. Didn't help so it seems.
I've had one train trip of an hour draining the battery from 80% to 20%. I had to recharge the phone in college with my external battery (which was only 2h long), up to 50% again, only to use it back in the train where I had to hook it up again to the external battery.
Wakelocks are PowerManagerService.Wakelocks (30%) and msim_hsic_host (for 11.8%)(<- although I have seen this on top at 20% too).
It's obviously only when connecting to new 3G poles, but come on. I can't use a new nexus 4 like this if it drains from 80 to 20% in one hour on the train. My old Galaxy S I9000 only spent a small 20% on that trip, and that phone was 2,5y old! (and a 1500 mhz battery).
What do I need to do to get my new phone to an acceptable level? What radio, kernel,...? Do I need to do a full factory reset for it to work? (I did wiped cache and dalvik cache in between the flashing above though)....
(Also, the phone gets really hot at times, I'm almost burning my finger! System monitor reports a max of 54C, but Franko Updater app status gives 70C. Don't know what to believe. I guess this is in line with the problems above though).

Svardskampe said:
Currently running PA 3.99 RC1. Used Franco kernel Linaro first, used the regular Franco Kernel today for a bit.
When I flashed PA first, I used the normal .84 radio of course. As I've seen that many had a problem with this radio with an MVNO (I use Mobile Vikings in the Netherlands, which is an MVNO from KPN), it would drain battery life immensely.
So I flashed the .48 radio (the android 4.2.2 one) back since yesterday. Didn't help so it seems.
I've had one train trip of an hour draining the battery from 80% to 20%. I had to recharge the phone in college with my external battery (which was only 2h long), up to 50% again, only to use it back in the train where I had to hook it up again to the external battery.
Wakelocks are PowerManagerService.Wakelocks (30%) and msim_hsic_host (for 11.8%)(<- although I have seen this on top at 20% too).
It's obviously only when connecting to new 3G poles, but come on. I can't use a new nexus 4 like this if it drains from 80 to 20% in one hour on the train. My old Galaxy S I9000 only spent a small 20% on that trip, and that phone was 2,5y old! (and a 1500 mhz battery).
What do I need to do to get my new phone to an acceptable level? What radio, kernel,...? Do I need to do a full factory reset for it to work? (I did wiped cache and dalvik cache in between the flashing above though)....
(Also, the phone gets really hot at times, I'm almost burning my finger! System monitor reports a max of 54C, but Franko Updater app status gives 70C. Don't know what to believe. I guess this is in line with the problems above though).
Click to expand...
Click to collapse
try a different kernel. ive heard/read many reports of franco kernel not being very battery friendly as of recently http://forum.xda-developers.com/showthread.php?t=2449982

Depending on how long you have the phone you probably want to replace the battery with a new one (although its probably hard to find a reliable battery that isn't used or fake capacity.)
My settings:
-Neo kernel: CPU 192MHz-1350MHz ondemand. GPU 320MHz ondemand.
-Manually disable data/wifi/gps/syncing and use lower brightness whenever I can.
-Use Greenify app to disable apps from autostarting.
Otherwise no other fancy stuff. I can get up to 4hours of screen on time.

simms22 said:
try a different kernel. ive heard/read many reports of franco kernel not being very battery friendly as of recently http://forum.xda-developers.com/showthread.php?t=2449982
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Thanks for the link, will try Trinity TF4H then as that seem to be the best from the test, and features color correction like franco's (I like a little bit of saturation)
eksasol said:
Depending on how long you have the phone you probably want to replace the battery with a new one (although its probably hard to find a reliable battery that isn't used or fake capacity.)
My settings:
-Neo kernel: CPU 192MHz-1350MHz ondemand. GPU 320MHz ondemand.
-Manually disable data/wifi/gps/syncing and use lower brightness whenever I can.
-Use Greenify app to disable apps from autostarting.
Otherwise no other fancy stuff. I can get up to 4hours of screen on time.
Click to expand...
Click to collapse
As I see in the benchmark topic they are going to test Neo, I'll wait that out first. As from the OP; it's a new phone. Have it just since this month, got it in the sales lately. Screen backlight was off during the entire day, and I do use greenify.

Svardskampe said:
Thanks for the link, will try Trinity TF4H then ase seem to be the best from the test, and features color correction like franco's (I like a little bit of saturation)
As I see in the benchmark topic they are going to test Neo, I'll wait that out first. As from the OP; it's a new phone. Have it just since this month, got it in the sales lately. Screen backlight was off during the entire day, and I do use greenify.
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Click to collapse
trinity doesnt feature color correction like francos, it doesn't include gamma editing. you can edit the red/green/blue however. there is a newer release of trinity though, if you want that one instead, tf5zeta http://goo.gl/wxnAfy
when flashing trinity, dont wipe anything, not dalvik, not cache. just flash it

I would say flash hells-core b38. You can also change color presets with trickstermod from playstore.
I use purity rom with hells kernel and got amazing sot times. Mostly between 4 a 5 hours.
Sent from my Nexus 4 using XDA Premium 4 mobile app

Unjustable said:
I would say flash hells-core b38. You can also change color presets with trickstermod from playstore.
I use purity rom with hells kernel and got amazing sot times. Mostly between 4 a 5 hours.
Sent from my Nexus 4 using XDA Premium 4 mobile app
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Click to collapse
+:good:

Unjustable said:
I would say flash hells-core b38. You can also change color presets with trickstermod from playstore.
I use purity rom with hells kernel and got amazing sot times. Mostly between 4 a 5 hours.
Sent from my Nexus 4 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
How do u custom your kernel setting, or it's come with the kernel already? I used it once back in b37 but only got 2-3 hours SOT from full charge drain out to around 30% batt

As for updates on this topic:
Currently running PA with Trinity. As for real test goes in the wild, we'll have to wait till monday at least , but so far looking incredibly promising. 3H screen on time when playing ingress, so continuous GPS location on, GPU working, changing network poles, internet, and I don't have LTE so everything over 3G/HDSPA and screen is only responsible for 33% used. Patch is necessary for running JSS kernels on JWR roms.
Trinity kernel topic: http://forum.xda-developers.com/showthread.php?t=2083904
The patch: https://drive.google.com/?usp=folder&authuser=0#folders/0B_2NNDoNW6ejTWhKR0ZUZUZrNHM
1. Flash PA first, and PA gapps. Let it boot.
2. Back in recovery, flash the kernel
3. flash the patch for JSS kernels on JWR roms.
Don't wipe anything in between in terms of cache or dalvik cache. (it's an anykernel kernel).
Only real downside is still the saturation. EDIT: added in TF11
I also have the problem my GPS couldn't find a fix. Installing GPS status and toolbox along seems to bring the fix time down to a minute.
https://play.google.com/store/apps/details?id=com.eclipsim.gpsstatus2