How to get great battery life - Nexus 4 General

When i got my nexus i was struggling to get over 2 hours on screen time, and flashing faux123s kernel and under clocking and under volting didn't help much either. I thought about getting the core Disabler app but I'm 15 and my dad wont let me buy anything.
Then i stumbled on the kernel tuner app.
I noticed the kernel tuner app wouldn't work with faux123s kernel though. The settings wouldn't stick. But using francos kernel i put the last 2 cores on the lowest settings possible and pretty much just made it a dual core. The phone hasn't slowed down whatsoever and in the ~45 min I've used it its only gone down like 10 percent!
Tell me what your setup is for great battery life!
Sent from my Nexus 4 using xda premium

I use juice defender app and its good..
sent from my phone using hands and brain...

I won't recommend it.... Nu Google the app and add "free download".
Sent with my Google Nexus 7 through the XDA Developers APP.

Latest faux kernel (004m_r2) + paranoid android rom + underclock to 1.2ghz + eco mode + intellidemand governor + gpu underclock to 325mhz
gives me 5h screen on time with more than 15h of idle time.

The great battery impression thread
Please continue discussion there.
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Related

what is the best setting for Droid Overclock

There are different settings, Ondemand, Performance, etc. What should it be set to to get best performance and does the Set to Boot box be check marked off?
You mean XOOM overclock, right?
interactive is more responsive and use a Tad more resources than ondemand. For the XOOM being dual core interactive is fine. On demand requires a signal to increase speed whereas interactive just does it. I wouldn't set at boot until you know your settings are perfect. Set at boot sets the speed at boot rather than having to go in and raise or adjust speeds.
1.5 ghz and interactive work wonders for me.
Lol I'm probably the only one but I love performance/start on boot. My batt still lasts days and I never have to worry about touching a thing.
Sent from my Xoom using XDA Premium App
U leave it in performance at all times and u still have battery life for days? That's amazing.
Sent from my SPH-P100 using XDA Premium App
futuregerald said:
U leave it in performance at all times and u still have battery life for days? That's amazing.
Sent from my SPH-P100 using XDA Premium App
Click to expand...
Click to collapse
Lol I thought so too. I work 50+ hrs a week though so I play with it once, maybe twice a day, for a Max of a couple of hours.
Sent from my Xoom using XDA Premium App

High benchmarks

Screenies of some good benchmarks? Please post you ROM and kernel too please
Sent from my Nexus 7 using xda app-developers app
Here's my Quadrant result.
CM 10.1 | Motley Kernel | CPU set @ 1.6 GHz | Total Points: 4619
Bl4ckX said:
Here's my Quadrant result.
CM 10.1 | Motley Kernel | CPU set @ 1.6 GHz | Total Points: 4619
Click to expand...
Click to collapse
Hmm, that's weird. I have a higher benchmark score than you, yet my cpu is just 1.3ghz. It only comes to show benchmark scores are quite useless when it comes to performance testing. I'm on stock rom btw.
Leonhan said:
Hmm, that's weird. I have a higher benchmark score than you, yet my cpu is just 1.3ghz. It only comes to show benchmark scores are quite useless when it comes to performance testing. I'm on stock rom btw.
Click to expand...
Click to collapse
Same here, 1.3ghz here, ROM stock and Franco i got 5070 points
Enviado do meu Nexus 7
I had my governor on conservative and my min at 100mhz and my max at 700 MHz and I got 4700. I use Franco kernel
Sent from my Nexus 7 using xda app-developers app
im on stock 4.2.1 rooted.
used nexus tool kit to temp boot into TWRP only to flash motley A33 kernel.
left all settings alone.
adjusted CPU speed from 1500 to 1700 and left everything else alone.
with my daily use i can get about 2 days of battery power mainly streaming netflix at night for about 3 hours for super natural.
this bench mark is fairly consistent at 1700, if i drop to 1500 CPU then the score drops back to around 5500.
nextelbuddy said:
im on stock 4.2.1 rooted.
used nexus tool kit to temp boot into TWRP only to flash motley A33 kernel.
left all settings alone.
adjusted CPU speed from 1500 to 1700 and left everything else alone.
with my daily use i can get about 2 days of battery power mainly streaming netflix at night for about 3 hours for super natural.
this bench mark is fairly consistent at 1700, if i drop to 1500 CPU then the score drops back to around 5500.
Click to expand...
Click to collapse
Do you use your tablet for anything else besides movie streaming? Cause two days of battery life sounds amazing. I'm on stock unrooted and I'm getting only about 1 day.
Sent from my Full Android on PrimoC using xda premium
Yes, its on my desk all day at work and i periodically check PULSE, CURRENTS and FLIPBOARD through out the day.
nextelbuddy said:
im on stock 4.2.1 rooted.
used nexus tool kit to temp boot into TWRP only to flash motley A33 kernel.
left all settings alone.
adjusted CPU speed from 1500 to 1700 and left everything else alone.
with my daily use i can get about 2 days of battery power mainly streaming netflix at night for about 3 hours for super natural.
this bench mark is fairly consistent at 1700, if i drop to 1500 CPU then the score drops back to around 5500.
Click to expand...
Click to collapse
Wow that's pretty good
Sent from my Nexus 7 using xda app-developers app
AW: High benchmarks
I just flashed the Trinity kernel and this time i scored about 5500 points. But for some reason im only getting 230 points 2D score.
Sent from my Nexus 7 using xda app-developers app
served24 said:
Do you use your tablet for anything else besides movie streaming? Cause two days of battery life sounds amazing. I'm on stock unrooted and I'm getting only about 1 day.
Sent from my Full Android on PrimoC using xda premium
Click to expand...
Click to collapse
You serious?
I get 3 and 1/2 days with my Nexus?
About 8 hours screen on time (Used for browsing, playing games and download etc)
The Nexus battery is the best I've ever had on a smart device.
Try:
Paranoid Android
Faux Kernel
Tis a winner !
Bl4ckX said:
I just flashed the Trinity kernel and this time i scored about 5500 points. But for some reason im only getting 230 points 2D score.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Try this
Configuration, Developer Section, Tick 'force gpu renderer'
Enviado do meu Nexus 7
Jaydizzle414 said:
Screenies of some good benchmarks? Please post you ROM and kernel too please
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
stock, rooted, motley kernel OC'd to 1.6 ghz. interactive | deadline.
AW: High benchmarks
eric-filth said:
Try this
Configuration, Developer Section, Tick 'force gpu renderer'
Enviado do meu Nexus 7
Click to expand...
Click to collapse
Thanks this fixed it. I scored over a thousand points in 2D and got an overall score of 6400.
Sent from my Nexus 7 using xda app-developers app
5925 score
Clocked on 1500
3.0.10-faux123-grouper
Omega Kernel on dirtyAOKP
1600 and 486-526gpu, can't remember exactly
Sent from my Nexus 7 using Tapatalk HD
dems86 said:
Omega Kernel on dirtyAOKP
1600 and 486-526gpu, can't remember exactly
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
This benchmark is too sux, gpu doesn't matter.
Anyway, good results.
Enviado do meu Nexus 7
One of the guys using Prime ROM scored this running 1.7ghz/484
Sent from my Nexus 7 using xda app-developers app

[Q]How to enable only two cores? (CM ROM)

Hi all.
Dont know if this is a stupid request
I am on CyanogenMod based ROM and i want to save battery (maybe) disabling some cores of my O4X...
I read this
http://forum.xda-developers.com/showthread.php?t=1804461
but not working on CM ROM so...
I ask you!
I read also this 2 threads but I dont know if they are only for htc one x
http://forum.xda-developers.com/showthread.php?t=1630200
http://forum.xda-developers.com/showthread.php?t=1652136
There are tricks to enable only 2-3 cores or something like this?
For CyanogenMod of course!
Sent from my LG-P880 using xda app-developers app
Hi, you could try with this nice app called Tegra Overclock. I've been using it for quite a long time now and I really like it. It's very simple and you can REALLY set how many CPUs you want online + there are also some other options for OCing etc.
Oh and btw, I just tried that app from the HTC One X thread that you pasted and unfortunately, it doesn't do the job. :/
https://play.google.com/store/apps/details?id=com.tegraoverclock&hl
scarfaceq said:
Hi, you could try with this nice app called Tegra Overclock. I've been using it for quite a long time now and I really like it. It's very simple and you can REALLY set how many CPUs you want online + there are also some other options for OCing etc.
Oh and btw, I just tried that app from the HTC One X thread that you pasted and unfortunately, it doesn't do the job. :/
https://play.google.com/store/apps/details?id=com.tegraoverclock&hl
Click to expand...
Click to collapse
thank you:thumbup::thumbup:
Sent from my LG-P880 using xda app-developers app
No problem. I hope that It will help you with your battery life.
also cpu tuner and trickstermod do the job pretty well. If your aim is to save battery check cpu tuner out
But seems that trickster mod dont save those settings for me...
Multicore Power Saving
always set to 0
Max Active CPU core
always set to 1
No way to fix them (various rom and kernel tested).
AND
Seems that tegra overclock fired up my CPU (CPU never goes under 1000 Mhz but always on max)
my phone after few minutes reboots in bootlop cause the temperature reached !
I reinstalled the ROM!!
LOL experience!!:banghead:
Sent from my LG-P880 using xda app-developers app
You need to set up min/max cpu that way u wont be stuck on max cpu speed and overheat your phone.Tegraoverclock is fine but i am kinda used to SetCpu app.Download cpu spy from market and watch deep sleep that way you will know whats going on with cpu all the time.BetterBatteryStats are fine too.

Nexus 7 Battery Saving Kernel *Need Testers*

i have compiled a nexus 7 kernel similar to this http://forum.xda-developers.com/showthread.php?t=1903304 but for 4.3 roms the main theory for this kernel is less heat and more battery (i was able to get 7 1/2 Hours SOT With 2 Days Standbye)
These Are The Features
1.vdd_core/vdd_rail ,emc, pll_c, host1x, GPU, CPU Pre Undervolted
2. CPU LP Overclocked To 666MHz
3. Speed of GPU 2d/3d/vde etc set at 400 mhz (close to stock of 416) (Also 228MHz GPU Step Decreased To 215MHz)
4. 1300MHz Quad Core Patch
5. Min Backlight Level 5
6. host1x Underclocked From 260MHz To 255MHz
7. Some MISC. Tweaks
8. FSYNC TOGGLE
Tell Me What Your feedback Before i make a thread in development section
it has Mkernel Ramdisk So it should boot on all roms ive only tested cm10.2 though (i will not be adding voltage control as i think this kernel has a good undervolt 75-100mv undervolt on all frequencies)
Enjoy
extremetempz said:
i have compiled a nexus 7 kernel similar to this http://forum.xda-developers.com/showthread.php?t=1903304 but for 4.3 roms the main theory for this kernel is less heat and more battery (i was able to get 7 1/2 Hours SOT With 2 Days Standbye)
These Are The Features
1.vdd_core/vdd_rail ,emc, pll_c, host1x, GPU, CPU Pre Undervolted
2. CPU LP Overclocked To 666MHz
3. Speed of GPU 2d/3d/vde etc set at 400 mhz (close to stock of 416) (Also 228MHz GPU Step Decreased To 215MHz)
4. 1300MHz Quad Core Patch
5. Min Backlight Level 5
6. host1x Underclocked From 260MHz To 255MHz
7. Some MISC. Tweaks
8. FSYNC TOGGLE
Tell Me What Your feedback Before i make a thread in development section
it has Mkernel Ramdisk So it should boot on all roms ive only tested cm10.2 though (i will not be adding voltage control as i think this kernel has a good undervolt 75-100mv undervolt on all frequencies)
Enjoy
Click to expand...
Click to collapse
Any sauce? I would like to look at the changes on git before flashing
Thanks I will probably flash it anyway
poondog said:
Any sauce? I would like to look at the changes on git before flashing
Thanks I will probably flash it anyway
Click to expand...
Click to collapse
well I can't upload to my git cause I'm going to my aunties for 2 days but when I get home I'll commit the changes
Sent from my Nexus 4 using Tapatalk 4
extremetempz said:
well I can't upload to my git cause I'm going to my aunties for 2 days but when I get home I'll commit the changes
Sent from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
Okay no worries, just wanted to see in detail what you did exactly Cheers mate
Nice kernel for start! Always favor battery save kernels.
Keep coding and create thread in right forum. I'm sure many will be interested.
Good luck!
extremetempz said:
i have compiled a nexus 7 kernel similar to this http://forum.xda-developers.com/showthread.php?t=1903304 but for 4.3 roms the main theory for this kernel is less heat and more battery (i was able to get 7 1/2 Hours SOT With 2 Days Standbye)
These Are The Features
1.vdd_core/vdd_rail ,emc, pll_c, host1x, GPU, CPU Pre Undervolted
2. CPU LP Overclocked To 666MHz
3. Speed of GPU 2d/3d/vde etc set at 400 mhz (close to stock of 416) (Also 228MHz GPU Step Decreased To 215MHz)
4. 1300MHz Quad Core Patch
5. Min Backlight Level 5
6. host1x Underclocked From 260MHz To 255MHz
7. Some MISC. Tweaks
8. FSYNC TOGGLE
Tell Me What Your feedback Before i make a thread in development section
it has Mkernel Ramdisk So it should boot on all roms ive only tested cm10.2 though (i will not be adding voltage control as i think this kernel has a good undervolt 75-100mv undervolt on all frequencies)
Enjoy
Click to expand...
Click to collapse
Been testing for quite a while now. Everything seems to be working. Extra juice from UV really helps. Do you plan on further development ?
I'm very interested.
Wejgomi
Why .img why no .zip?
Sent from my Nexus 7 using xda app-developers app
What sort of improvements in battery life are people getting with this?
Sent from my HTC Desire C using xda app-developers app
wejgomi said:
Been testing for quite a while now. Everything seems to be working. Extra juice from UV really helps. Do you plan on further development ?
I'm very interested.
Wejgomi
Click to expand...
Click to collapse
How much screen on time you are getting?
Sent from my Nexus 7 using Tapatalk 4
Xumit said:
How much screen on time you are getting?
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
~7-7.5 on tilapia.
wejgomi said:
~7-7.5 on tilapia.
Click to expand...
Click to collapse
And how much were you getting beforehand and with what?
Sent from my HTC Desire C using xda app-developers app
butler0607 said:
And how much were you getting beforehand and with what?
Sent from my HTC Desire C using xda app-developers app
Click to expand...
Click to collapse
Regular 6 hrs from nexus 7.
Has anybody actually tried kernel or am I being questioned close-minded here ?
What is the steps for the instalation?
I would like some screen shots for do it because I have a poor battery stats in my Nexus 7 3G
wejgomi said:
Regular 6 hrs from nexus 7.
Has anybody actually tried kernel or am I being questioned close-minded here ?
Click to expand...
Click to collapse
Not sure why you think we're being closed minded? Some people post on here claiming battery life of 11+ hours, so 7 might not be that good, alternatively you might've just increased from 7 initially to 7.5 now. Wouldn't be worth my time, given the problems I've had flashing kernels before, if the increase was hardly noticeable.
Doesn't hurt to look into stuff a bit more before we flash something completely new with little info.
Sent from my Nexus 7 using xda app-developers app
butler0607 said:
Not sure why you think we're being closed minded? Some people post on here claiming battery life of 11+ hours, so 7 might not be that good, alternatively you might've just increased from 7 initially to 7.5 now. Wouldn't be worth my time, given the problems I've had flashing kernels before, if the increase was hardly noticeable.
Doesn't hurt to look into stuff a bit more before we flash something completely new with little info.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Yeah but there's nothing as remote testing for a kernel. You have to try and see for yourself. All info lies in OP's post, anyway.

What Kernel|Rom combination are u using

I Tried several Roms so far, but im not getting the amount of benchscores some people get. Suggestions?
Sent from my Nexus 6 using XDA Free mobile app
Running SlimLP and LeanKernel 1.1 decrypted. Getting about 49400 on AnTuTu. Was getting about the same on stock as well.
Elix-r, decrypted, latest supersu, and elementalx ver 0.7 for kernel. Super smooth and fast
LS or Validus ( I switch back and forth until this bug gets fixed. )
Lean Kernel v1.1 UCOC (my favorite so far)
I'm using Stock 5.0.1 with Sensei Kernel R23. It's a great balance between battery and performance and his kernel is very customizable with plenty of governors and TCP congestion control.
Sent from my Nexus 6 using XDA Free mobile app
ElixR and Sensei.
I honestly don't know what all the tweaks are. I only use that combination since it is said to be stable. I may just switch back to stock.
jamcswain said:
I'm using Stock 5.0.1 with Sensei Kernel R23. It's a great balance between battery and performance and his kernel is very customizable with plenty of governors and TCP congestion control.
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
what is your battery saving settings for Sensei?
also im on Pure with Sensei R23
Stock rom, no encryption, Elemental rom (just OC'ed to 2.8gHz)
antutu = 51901
liquidsmooth + lean kernel
euphoria is a great rom as well
oneandroidnut said:
what is your battery saving settings for Sensei?
also im on Pure with Sensei R23
Click to expand...
Click to collapse
Underclocked minimum 300mhz max 1.4ghz. On BioShock Governor. Using intelliplug with screen off frequency 652mhz. With 2 cores max. 2 disabled. Undervolted -24mV. And of fiops scheduler. And with Westwood TCP congestion control
Sent from my Nexus 6 using XDA Free mobile app
jamcswain said:
Underclocked minimum 300mhz max 1.4ghz. On BioShock Governor. Using intelliplug with screen off frequency 652mhz. With 2 cores max. 2 disabled. Undervolted -24mV. And of fiops scheduler. And with Westwood TCP congestion control
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
awesome man thanks i will give it a try when i throw my sim back in nexus tonight!!!
oneandroidnut said:
awesome man thanks i will give it a try when i throw my sim back in nexus tonight!!!
Click to expand...
Click to collapse
Be careful not to set on boot with undervolting. Its very volatile. Try it for a while and if if doesn't crash, then set it to boot. I used mine for a day before setting it on boot
Sent from my Nexus 6 using XDA Free mobile app
jamcswain said:
Be careful not to set on boot with undervolting. Its very volatile. Try it for a while and if if doesn't crash, then set it to boot. I used mine for a day before setting it on boot
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
yeah i dont. i had set to -25 mv and like you said not to set on boot. so if it crashes i will revert!! thanks man!
ROM: Minimus - has everything I need, nothing more and nothing less
Kernel: Stock - smoothest kernel for me at the moment
Rom : Elix-R
Kernel : Sensei r21.
WOW!
Kernel gives all kinds of mods. Seriously better battery life or Faster performance.
13 hours since charge still at 58 % with 3 hours screen time. Mostly reading emails, forums. Several YouTube videos.

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