Develop Bugs

battery drain and Snap with CM6?

CM6 is definitely great, I think without question it is a vast improvement.
The only issue I have is my battery life is ABSOLUTELY HORRIBLE. Could be the worst battery life I've had with any phone. But maybe that's just the EVO, with it's big screen and speedy processor. I underclock to 384 mhz sometimes but then the thing slows down and even freezes. I have 3 different batteries and they all perform about the same (not good.) Before I had a partial wake issue but that's gone, and battery life still stinks. I've also tried calibrating but nothing really seems to make it better.
I hear the snap thing is good for battery life but I everytime I open that thread I get a headache. I love this phone and am obsessed wtih it but that thread is a bit much even for me!
Can anyone give me a quick and dirty explaination of what snap is / how to use snap? Which kernel to flash? Some day I hope to digest that mammoth of a thread, but right now I'm too busy reading texts for college and Just want better battery life.
Thanks!

Download app System Panel. Will help show you what is eating up your battery/resources.
Then, download app Juice Defender. Worth it to get the paid version. Its like 3 bucks IIRC. This will help you get more battery life out of your phone.
-Sent from my Evo.

nyc_zx10 said:
Download app System Panel. Will help show you what is eating up your battery/resources.
Then, download app Juice Defender. Worth it to get the paid version. Its like 3 bucks IIRC. This will help you get more battery life out of your phone.
-Sent from my Evo.
Click to expand...
Click to collapse
Yeah, I tried System Panel but the things eating my battery were mostly system things, like Browser. I guess I could give it another go.
Why are Juice Defender reviews so bad? I've considered it before also, maybe will try playing with it again

snap 8.2 is the current release. you can try any of the kernels, but i would avoid the 7.0/7.1 SD Card implementations since that technology has been put on the back burner for a bit.
Snap allows you to you Overclock and Undervolt (aka: UV).
Overclocking of course is for speed and Undervolting may save battery.
all EVOs are not created equal. some like undervolting some do not. so snap is available in multiple flavors. each with a different UV floor. the lower the floor the more potential battery saving..but also the more chance for a random reboot or wifi/gps acting funny. remember UV retards the amount of power so things can act goofy. the different UV floors are 800mv - 925mv. for example...i use the 8.2_900 because it works well with my EVO. the 8.2_800 booted great but after a while started rebooting itself. 8.2_850 just hung at bootup. the 8.1 kernels didn't work for me at all. 7.3b1 was great.
HAVs is adaptive..so don't get stressed if your device fails to boot properly the first time. wipe the cache/dalvik and try again.
so download a few of the 8.2 kernels.
make your nandroid
begin trial and error (I'd suggest starting at 800, 850 then 900 to get a feel)
don't be afraid to wipe the Cache and Dalvik multiple times.
don't worry about the whole thread. just grab the last few pages and read the OP. then feel free to ask.
i also recommend setCPU. you can find some threads for SetCPU configurations to help. BUT....make sure SetCPU is disabled when flashing the new kernel. once you get a working kernel you can enable SetCPU...but during testing phase it will give you gray hair.
jmxp69 said:
Just a few quick thoughts on voltages/freqs after seeing a handful of discussion in the thread:
1) Every 8.2 kernel has voltages lower than stock. The default stock voltage @ 245 is something around 1050.
2) No real effort is made to UV at the top end. It's a little lower, but the objective at the highest CPU frequency is not to UV. Most of the benefit of UV comes at the low end of the scale when your phone is idle (most of the time). Less voltage = less draw.
3) nHAVS scales voltage at each step. There is a min.max voltage at every cpu frequency. This range is fairly small--50-75mv, but it enables HAVS to decide based on feedback from the CPU which one to apply. And the max at each step is lower than stock. So no matter how you slice it, even if you're running 925, you are undervolted. This becomes a question of how undervolted.
4) OC is not about undervolting, it's about overclocking. The differences is voltage vs. frequency. OC means we're increasing the CPU frequency beyond stock which is 998mhz in the case of Evo. If you move your SetCPU slider beyond 998mhz, you're overclocking.
The objective of overclocking is speed. The objective of undervolting is battery savings. Snap gives you both. We overclock when we increase the fequency with SetCPU. We undervolt automatically via nHAVS. As of this writing, UV is handled in the kernel, it happens most at the bottom end of the frequency scale.
I hope this helps clear up some of the questions. Great conversation by the way.
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Click to collapse

GREAT EXPLANATION Dragin!!!
and also, to the OP.... dont forget, if you do go with setcpu, do NOT 'set on boot' mmmmkay??? lol

Thank you Dragin!!!
That helps a lot! So once you have Snap setup at what you feel is "good" does your phone seem to perform as well as before you had it undervolted? Man, sounds like a pretty involved process - maybe I better wait until I can really sit down and play with it.

goodelyfe said:
GREAT EXPLANATION Dragin!!!
and also, to the OP.... dont forget, if you do go with setcpu, do NOT 'set on boot' mmmmkay??? lol
Click to expand...
Click to collapse
Do you mean for the first flash? Or every time you boot your phone?
If not set on boot, it means you have to start SetCPU manually after each boot. Doesn't seem right
Sent from my PC36100 using XDA App

foueddyf said:
Do you mean for the first flash? Or every time you boot your phone?
If not set on boot, it means you have to start SetCPU manually after each boot. Doesn't seem right
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I think he's talking about when ur figuring out the best setup

Regarding Juice:
I didn't really read too much into the reviews for this particular app. It works. I was having battery issues. Downloaded Juice, got the settings somewhat right to my liking and so far no complaints. Unplugged my phone from charger this morning at roughly 9am, been using it moderately all day, and as of right now at 12:50am, I am at 29%.
Bad reviews or not, I can attest to it working and making a difference in battery life.
Sent from my PC36100 using XDA App

I had the same issue, left to stock with kingx.
Sent from my PC36100 using XDA App

nyc_zx10 said:
Regarding Juice:
I didn't really read too much into the reviews for this particular app. It works. I was having battery issues. Downloaded Juice, got the settings somewhat right to my liking and so far no complaints. Unplugged my phone from charger this morning at roughly 9am, been using it moderately all day, and as of right now at 12:50am, I am at 29%.
Bad reviews or not, I can attest to it working and making a difference in battery life.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Do you know what in particular Juice is doing to give you better battery life? like what does Turn off certain things based on conditions or?
That is some good battery life.

Correct.
You can set conditions to do certain things. Such as disable data/3g/wifi while screen is off. Also if you need data synced you can set a condition to enable data wifi or 3g for X minutes every X minutes/hours.
I am not affiliated with the dev in anyway but it def made a difference and was worth the price for it.
Sent from my PC36100 using XDA App

nyc_zx10 said:
Correct.
You can set conditions to do certain things. Such as disable data/3g/wifi while screen is off. Also if you need data synced you can set a condition to enable data wifi or 3g for X minutes every X minutes/hours.
I am not affiliated with the dev in anyway but it def made a difference and was worth the price for it.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Meh... see I really don't want to do those things. I can turn off data sync myself and just have gmail forward me a text message when I have an email. I just was hoping there was a way to get decent battery life without going back to the days of Winmo
I absolutely adore CM6, but I'm really starting to think that it is not battery friendly. Last night my battery went from full to 25% in 8 hours. I had nothing running, my partial wake was fine, and Android system took up 60%+. I really don't feel like doing another wipe, but it looks like I may have to. Just want it to work right at this point.
Again, I truly love CM6, the open source concept, the transparency, the whole clean idea of it, but there is something seriously wrong with the battery life (at least in every install I have tried)

berardi said:
I absolutely adore CM6, but I'm really starting to think that it is not battery friendly. Last night my battery went from full to 25% in 8 hours. I had nothing running, my partial wake was fine, and Android system took up 60%+. I really don't feel like doing another wipe, but it looks like I may have to. Just want it to work right at this point.
Again, I truly love CM6, the open source concept, the transparency, the whole clean idea of it, but there is something seriously wrong with the battery life (at least in every install I have tried)
Click to expand...
Click to collapse
i agree with you. but i also feel that CM6 is on par with the Official HTC/Sprint ROM when it comes to battery life expectancy. however, after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
as for finding your EVOs kernel made in heaven...
it's not too bad so long as you have some time. but if you are time strapped, need your phone in 20min and don't read the OP... you will curse and swear. expect to get hung up at the HTC splashscreen a few times and it will bootloop on you before your done. <I'd suggest just leaving your battery cover off until you are done muckn about for that session>
klick may be easier for the some end users because of fewer selections. I've never used his kernels. if i try them, i'll prolly wait till he's put out a few AOSP versions...to work out any bugs.
oh yeah...one odd thing, it seems that sometimes folks flash a incompatible kernel it gets 'stuck'. after that 'bad flash' they are unable to flash any kernel until after they have nandroided back and rebooted...then they can flash again. i had this happen twice....i was unable to get a known good kernel to load until after i restored from backup. /shrug
oh....try this. download the snap7.5_925 kernel. if it runs smooth. call it a day and you should be pretty happy with that until the new versions come out. yeah, if you got one of the _800 kernels running you may pull an extra 30-45min of time...but that requires a level of geekdom that not everyone has.

DraginMagik said:
i agree with you. but i also feel that CM6 is on par with the Official HTC/Sprint ROM when it comes to battery life expectancy. however, after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
as for finding your EVOs kernel made in heaven...
it's not too bad so long as you have some time. but if you are time strapped, need your phone in 20min and don't read the OP... you will curse and swear. expect to get hung up at the HTC splashscreen a few times and it will bootloop on you before your done. <I'd suggest just leaving your battery cover off until you are done muckn about for that session>
klick may be easier for the some end users because of fewer selections. I've never used his kernels. if i try them, i'll prolly wait till he's put out a few AOSP versions...to work out any bugs.
oh yeah...one odd thing, it seems that sometimes folks flash a incompatible kernel it gets 'stuck'. after that 'bad flash' they are unable to flash any kernel until after they have nandroided back and rebooted...then they can flash again. i had this happen twice....i was unable to get a known good kernel to load until after i restored from backup. /shrug
oh....try this. download the snap7.5_925 kernel. if it runs smooth. call it a day and you should be pretty happy with that until the new versions come out. yeah, if you got one of the _800 kernels running you may pull an extra 30-45min of time...but that requires a level of geekdom that not everyone has.
Click to expand...
Click to collapse
Thanks man, appreciate the breakdown.
You have inspired me, I'm going to bite the bullet and try this snap7.5_925 kernel. I'll report back my luck
I do enjoy this stuff, really - just right now it would be irresponsible for me to spend too much time on it. School comes first right now.

DraginMagik said:
... after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
Click to expand...
Click to collapse
Wow, I'd love to have that kind of time with CM6, right now I drain at about 10% an hour with no usage at all; where can I find that setcpu config? I really like CM6 but battery life is killing me right now.

loupy said:
Wow, I'd love to have that kind of time with CM6, right now I drain at about 10% an hour with no usage at all; where can I find that setcpu config? I really like CM6 but battery life is killing me right now.
Click to expand...
Click to collapse
Yeah dragin, don't hog those sweet settings! I'm enjoying Snap 7.6 and it seems to be helping out my battery life a bit, but I'd love to see your SetCPU details.

I've found that the issue for me is bluetooth. If I have it on constantly my battery will drain 10-15% per hour. With bluetooth off it's only draining 1%-2% per hour.
Seems like the bluetooth needs work on CM6 in order to have the efficiency that the other ROMs i've tried (Fresh and EViO) have. Nonetheless, I'm sticking with CM6 and just use the bluetooth when necessary.

I have the same issue with bluetooth on CM 6.0.0. I am running the stock kernel that comes with cyanogenmod, so this is definitely not a snap issue. There was a bug submitted about a month ago:
code.google.com/p/cyanogenmod/issues/detail?id=2136
I *really* hope this can get fixed for the 6.1 release, but it is currently listed with a low priority. I really love CM6, but basically making bluetooth unusable for more than a few hours really makes me struggle with the using this rom.

Why not the 7.6 with turbo...just wonderin

[Q] JuiceDefender?!?!

I RARELY buy apps. Probably only bought 3 in total but how many people would recommend JuiceDefender Ultimate Juice? Does it really help with battery life? Is it great?

knowledge561 said:
I RARELY buy apps. Probably only bought 3 in total but how many people would recommend JuiceDefender Ultimate Juice? Does it really help with battery life? Is it great?
Click to expand...
Click to collapse
some ppl will probly argue tho it did help lil on my 2.2 rom but the gin roms jd has real issues the brightness goes up and down dosent allow u to install anything until u uninstall jd, i tried to stop it from running and still no go so id save your money

It work a little ..but like the guy said save ur cash...
funnie evo

I'm on cm7 and I bought UJ finally and it's pretty good. Makes my phone last the whole day. Granted I am a moderate user but from 4AM to 12AM is pretty good.
Sent from my PC36100 using XDA App

I use sense roms and i see a big enough difference with JD Ultimate for the few bucks it costs..i get close to double my regular battery usage with it..there is ways to get it without paying if u are into that kind of stuff

i'd try normal juicedefender first. if you like it, then review what features you will get from ultimate. if you think it's worth it, then buy on in. if not, then don't.
btw, in my experiance, letting it toggle my 4g actually lost me battery.

My experience it was ok. I got it for the sense 2.1 rom due to the brightness issues. I had to unistall it because it was making my connectivity act up. My data wouldn't start back up on wake sometimes. Overall it wasn't saving me a dramatic amount either.
In all fairness I didn't customize it. Just used normal or aggressive default.
Sent from my PC36100 using XDA Premium App

SetCPU
If you're really gonna spend some money on an app SetCPU is the way to go for battery life (Assuming you're rooted). This way you have a customizable governor on your processor and you can tell it how fast to run. Unless you've already done this in which case sorry. I get at least a good two days out of my battery on almost all the roms I run and I flash a lot, Letting it die completely when the screen is off does a tremendous job & really you don't need it to run over 700 mhz for most things. Give it a try, the trick is setting the profiles. Use on demand for your scaling then set accordingly, keep in mind you need to set the most important profiles such as temperature and screen off as your 100 or 99 level profiles. You'll get the hang of it, but as I said if you already use it then this was a giant waste of typing
P.S. if running the Stock HTC Kernel you have to disable perflock in order for the profiles to work. Main tab, menu, perflock disabler.

originalmg said:
If you're really gonna spend some money on an app SetCPU is the way to go for battery life (Assuming you're rooted). This way you have a customizable governor on your processor and you can tell it how fast to run. Unless you've already done this in which case sorry. I get at least a good two days out of my battery on almost all the roms I run and I flash a lot, Letting it die completely when the screen is off does a tremendous job & really you don't need it to run over 700 mhz for most things. Give it a try, the trick is setting the profiles. Use on demand for your scaling then set accordingly, keep in mind you need to set the most important profiles such as temperature and screen off as your 100 or 99 level profiles. You'll get the hang of it, but as I said if you already use it then this was a giant waste of typing
P.S. if running the Stock HTC Kernel you have to disable perflock in order for the profiles to work. Main tab, menu, perflock disabler.
Click to expand...
Click to collapse
First of all, the super awesome setcpu developer posted it on the forum for free, so you don't really need to buy from market. Second, the smart ass governer can do this all automatically. Finally, juice defender still works better for me.
Sent from my PC36100

I installed the free version and it killed 7% in 1 minute on my 3500mah battery. I uninstalled and reinstalled an hour later and same thing. My phone does not like it.
Sent from my......ummm...let me get back at'chya!

knowledge561 said:
I RARELY buy apps. Probably only bought 3 in total but how many people would recommend JuiceDefender Ultimate Juice? Does it really help with battery life? Is it great?
Click to expand...
Click to collapse
I use Tasker from the Market, creating profiles such as turning off data when screen is off and data on when screen is on (doesn't affect voice calls or SMS/MMS). Also, I use Autokiller Memory Manager (not a task killer). I can get from 17 hours on normal use to 31 hours with light to moderate use. As I write this, I'm at 88% battery left after 5 hours off the charger.

What exactly do the app do?
Sent from my PC36100 using XDA Premium App

I can vouche for it. It works awesome for my evo. I got x1.5 out of my standard battery under customize mode
Sent from my PC36100 using Tapatalk

[Q] what is the best battery saving kernel?

hey guys, i am looking for a kernel that will save me on battery. i am running zombie 4 rom. it says it runs the dark x kernel. i don't need to be running at super speeds but i don't want screen freezes either. i just want to be able to play my satellite radio without the phone draining 3 percent every 5 min or so. any help would be great.

edshawn911 said:
hey guys, i am looking for a kernel that will save me on battery. i am running zombie 4 rom. it says it runs the dark x kernel. i don't need to be running at super speeds but i don't want screen freezes either. i just want to be able to play my satellite radio without the phone draining 3 percent every 5 min or so. any help would be great.
Click to expand...
Click to collapse
I would be interested in this as well. Currently I am Rooted and have tried a few ROM's but haven't found one yet that doesn't have some bug or another. {Granted, I haven't tried them all} Tried one ROM that really distorted my custom made Wallpapers, which is a big deal to me. So... yes, any info on a better battery life Kernel would be welcome.
Currently I am not a "heavy user" on the phone. Talk - Text - You Tube occasionally... that's it. Constantly looking for better ways to improve this already amazing phone.

Eugenes kernel has given me great battery life. Either get down with Eugene's Macnut ROM which already has it or search for it under the general section under the bounty thread for Eugene. Its in page....58?
Keep in mind that the "beta" kernel does not have bln support but works just fine so long as you use the lionheart governor.
If you can't find the bounty thread then I'm sorry for you.

Synergy kernel has been awesome on battery for many.
Sent from my SGH-T989 using XDA App

I second just using macnut rom. I've tried em all, and his always gets the best battery life (for me).
I also undervolt via system tuner pro so that I'm at 1137 at 1.51
Sent from my SGH-T989 using xda premium

G1ForFun said:
Synergy kernel has been awesome on battery for many.
Click to expand...
Click to collapse
+1 for Synergy, i got well over a day when i was running rooted stock debloated, etc. Also i use setcpu ondemand gov. 1620 max 384 min

edshawn911 said:
hey guys, i am looking for a kernel that will save me on battery. i am running zombie 4 rom. it says it runs the dark x kernel. i don't need to be running at super speeds but i don't want screen freezes either. i just want to be able to play my satellite radio without the phone draining 3 percent every 5 min or so. any help would be great.
Click to expand...
Click to collapse
How you use your phone determines the best way to get the best battery life. Basically there are two ways to save battery: cutting power when not in use and delivering less power to the processors.
If you use your phone intermittently throughout the day for texts or calls, you'll get the best battery results from kernels/ROMs/apps that cut unnecessary functions when you're not using the phone. For example, juice defender cuts your wifi and mobile data when your screen is off and reactivates it every 15min (can be configured otherwise) to check for notifications. Darkside's Digital Warfare utilizes something called "deep sleep" which actually completely turns off your processors when the screen is off, but keeps the basic cell radio on so if you receive a text/phone call it will wake up the processor. These functions have the largest and safest impact on battery life.
If you're constantly using your phone and you want better battery life, you basically only have one option: undervolting. This is essentially supplying less power to your processors, which can be done through system tuner. It's not a free ticket, however; if you undervolt too low then at higher frequencies (playing games, etc.) your processor will become unstable and your phone will randomly reboot. If you encounter this, then don't undervolt that much and up the voltage to the last safe level. Just for reference, undervolting by 50mV is usually considered safe and undervolting past 100mV usually results in boot loops. But how far you can actually undervolt depends on your individual phone hardware, there's no universal answer. Make sure to not set your undervolt settings to set at boot until you find a stable voltage. Otherwise, you'll be forced to restore a nandroid if you encounter a bootloop.
TL;DR
If your phone already lasts a day and you want it to last 2-3 days, look into ROMs/kernels/apps that cut unnecessary functions when not in use. Most effective way to extend battery.
If your phone lasts 8 hours and you want it to last a day because you're a heavy user, look into undervolting with system tuner.

kernel darkside
my phone used in 24h, very good

I'm using juggs. 5.0 with a DSX kernel. I've been getting about 11-12 hours with decent use.
Sent from my SGH-T989 using XDA App

stock rom. Just download a battery manager from the Market.

My guide for 18 hours battery life on Jelly Bean

I am here to share my experience to get 18 (around 5-8 hours screen time depend on your usage) hours normal usage, browsing chatting, facebook and calls.
2 days if you are not touching your phone at all, standby.
follow my guide, I think it's all about the Kernel but I shared the rom I used too just in case.
this guide is for GSM, might work on others just download the proper rom and kernel.
Optional, you can underclock to 1ghz but I didn't and got 18 means more if you underclock it.
http://nexus-hacks.blogspot.com/2012/08/how-to-increase-galaxy-nexus-battery.html

How many screen hours?
Sent from my GT-P3113 using xda app-developers app

Which Trinity kernel and AndroidMe rom version have you been using?
TNP1536-307-JB-STABLE35
TNP1420-307-JB-STABLE35
TNP1344-307-JB-STABLE35. Do you think this one would be a good choice to save battery?
Thanks.

wissamidrissi said:
I am here to share my experience to get 18 hours normal usage, browsing chatting, facebook and calls.
2 days if you are not touching your phone at all, standby.
follow my guide, I think it's all about the Kernel but I shared the rom I used too just in case.
this guide is for GSM, might work on others just download the proper rom and kernel.
Optional, you can undervolt to 1ghz but I didn't and got 18 means more if you undervolt.
http://nexus-hacks.blogspot.com/2012/08/how-to-increase-galaxy-nexus-battery.html
Click to expand...
Click to collapse
point 1: when you go to 1GHz , it's called underclocking. undervolting is when you lower the voltage for the corresponding processor frequencies.
point 2: 18h , but what about screen ON ? how much is the "normal usage" equivalent to, in terms of screen ON and the stuff that you're running on your phone.
it's nice to see you trying to contribute and thumbs up for the effort, and i really don't want to sound like an a-hole, but this is not a guide. flashing a custom rom + kernel, and letting the battery go through a few cycles cannot be considered as a guide with battery saving tips. Cheers mate.

shinydesert said:
which trinity kernel and androidme rom version have you been using?
Tnp1536-307-jb-stable35
tnp1420-307-jb-stable35
tnp1344-307-jb-stable35. Do you think this one would be a good choice to save battery?
Thanks.
Click to expand...
Click to collapse
tnp1536-307-jb-stable35
rayiskon said:
point 1: when you go to 1GHz , it's called underclocking. undervolting is when you lower the voltage for the corresponding processor frequencies.
point 2: 18h , but what about screen ON ? how much is the "normal usage" equivalent to, in terms of screen ON and the stuff that you're running on your phone.
it's nice to see you trying to contribute and thumbs up for the effort, and i really don't want to sound like an a-hole, but this is not a guide. flashing a custom rom + kernel, and letting the battery go through a few cycles cannot be considered as a guide with battery saving tips. Cheers mate.
Click to expand...
Click to collapse
You are right, but I learned now ^^
well around 8 hours normal usage of screen time (screen awake), and when I am on a phone call and the screen is off it toke 1% every 10mins
pardon my English

delete this reply cuz I don't find how.

Yah I hate to be that guy but where's the guide? Everyone uses their phone different. You should at least show your battery usage screen shot so we can see screen time etc.

What? Are you telling me that you get 8hrs of screen on time? Is this trolling or just a language barrier?
wissamidrissi said:
tnp1536-307-jb-stable35
You are right, but I learned now ^^
well around 8 hours normal usage of screen time (screen awake), and when I am on a phone call and the screen is off it toke 1% every 10mins
pardon my English
Click to expand...
Click to collapse

lightsout said:
Yah I hate to be that guy but where's the guide? Everyone uses their phone different. You should at least show your battery usage screen shot so we can see screen time etc.
Click to expand...
Click to collapse
sorry, I wiped stats but you can study this.
just look at my charge time compared to the times I am using phone, and because it last longer I don't care when its red and low, I was in 5% from 9pm to 11pm chatting from time to time and facebook, and btw my wifi is always on.
and pardon me I am new Xd I am just sharing something not an expert or something but next time I will make sure : it's called underclocking <- I though both are same, and post screenshot and screen on time
EDIT: I think I should charge it to 100% and make it drain then share pics with you guys, that's the proper way for screenshot right Xd? cuz mine looks like a mess XD

My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium

El Daddy said:
My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Nice XD but I love messing around my phone stock is just... normal XD

Your phone was plugged in multiple times throughout your screenshots. So yes, you should redo screen shots from 100% and include display on time.
It doesn't really matter though, as no one will see your same results unless they use their phone the exact same way.
And under clocking is unnecessary on the nexus, it doesn't spend hardly any time at 1200mhz anyway. I use mine for a lot of game play and still don't spend much time over 691mhz (Trinity kernel). So if my phone decides it does need to ramp up to 1190mhz to remain buttery smooth I'm not going to interfere.
Sent from my SGH-T959V using xda premium

Nice. Will check this out.. I run my phone down pretty quick these days heh

I'm not understanding why you prefer 1.5 trinity kernel and 307 gpu. What benefit are you seeing versus the other trinity kernels with higher gpu and lower overclock limits? Are you running your phone at 1.5?
Sent from my Galaxy Nexus using Tapatalk 2

El Daddy said:
My guide for 18+ hours:
Stock.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Same here. I have no problem getting 18 hours out of my stock battery using the stock ROM and kernel, including just shy of 6 hours of screen on time.

I dont know that I would call this a guide. Its saying to use a certain rom and kernel and to charge the phone. . . . .

hey thanks for the write up... i used it alone to change the colors! now my screen isn't yellow.
question though... when I adjust my colors manually, when I go to 0 percent brightness, everything goes like super green... like crazy looking lol.. but at 3 percent it's fine again... any idea why this happens and how I can fix it to get true 0 percent? thanks!
Sent from my Galaxy Nexus using Tapatalk 2

I'm using a stock one and all I can say is: Just dont use Nexus as a videogame.
I got 3 days and some hours of battery talking some minutes and using wifi for some time (probably 4 hours overall).
Playing sucks up the battery life. At least for me.
A normal day of use, with wifi active, many calls, auto bright and SetCPU profiles gives me 'bout 18-24 hours of use.
A intense play day gives me 8 hours. And I think its generous.
:victory:

jayochs said:
hey thanks for the write up... i used it alone to change the colors! now my screen isn't yellow.
question though... when I adjust my colors manually, when I go to 0 percent brightness, everything goes like super green... like crazy looking lol.. but at 3 percent it's fine again... any idea why this happens and how I can fix it to get true 0 percent? thanks!
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Finally I helped one person, thanks man I love you XD
and this guide is just experience, because most people are wondering what is best rom and kernel combination, well this was best for me at least.

full stock

Better battery life(get >= 1day)and personal tweaks!!

I'm posting this because all the rom and kernel combinations out there are just lethal for my search ego.This is to tell u guys how i get my one x to move up a day and counting without telling me low battery and with somehow constant use.I'm using the viper x rom(other great roms but this is my personal best)and the faux kernel.(0verclocking latest faux kernel). Thats all.Also u'll like to disable battery percentage as it gets ur mentality off ur use and more on looking at it.
-My trick is i just plugged my phone to the charger at 7pm(low battery).Took it off at 10pm(even though it was full before then).Slept at 12.Woke up the next day till evening it lasted and then one day after in the morning 8am i got 50%.(not really heavy use,light gaming,browsing,opening apps.....).Very impressive.I could use it the whole day again and it will die at night around 7 for cycle to continue.
-This keeps u from overnight charge to 2 days charge and its pretty awesome.
Again u cant use ur one x as a ps3(vita) or gaming console or even an ipad browsing experience and expect it to last u.Sure u can browse but......u know the risk on battery or else get locked bootloader motorollas .
NB:When battery percentage is on u are off focus always thinking of the battery.Just leave a bare battery bar.
Thank if i helped and peace.Hope it works for u.
or flash CM10 which has good overall battery life.
HOX Grey,CID 02_001,Viper x rom,faux kernel and the food is ready.:good:

Can you post some screen shots with screen on time and battery usage please?
Sent from my HTC One X using xda app-developers app

pretty simple what you guys need to do to get a good battery life.
1. make sure you remove auto brightness and set the brightness of the display to manual. so set your own brightness of the display.
2. only sync stuff that are important like emails or whatsapp.
3. if you do not use maps uninstall them as those can be battery drainers.
4. use the latest NCX kernel and use system tuner...use ondemand governor and sio/noop schedulers and keep the clock speeds at 1.2ghz and undervolt by 50 steps...
follow those steps and you should see an increase on your battery...i am using ICJ rom so if you want to go down that route your battery will increase... i always average 3hrs screen on time and battery lasts me a whole day

I know a not of people hate this feature, but I get amazing battery life with the new Power Saver feautere in JB, only disabling it when I'm gaming. The phone runs buttery smooth only having trouble when facing heavy multitasking in which cases I also disable the Power Saver.
Sent from my Quad-core OneX Beast

or if u want a guranteed battery life.. try replacing it with the hox+ one.. ahahahaha...

BashYaBro said:
or if u want a guranteed battery life.. try replacing it with the hox+ one.. ahahahaha...
Click to expand...
Click to collapse
no laughs thats my plan:crying:lol:silly:

mines completely stock, i have about 50% left after a day (6:30am - 10pm) if i dont use it much, or about 10%-20% if i use the internet/play games etc.

disable battery percentage as it gets ur mentality off ur use and more on looking at it.
Click to expand...
Click to collapse
^^ Golden Words

hackarchive said:
I'm posting this because all the rom and kernel combinations out there are just lethal for my search ego.This is to tell u guys how i get my one x to move up a day and counting without telling me low battery and with somehow constant use.I'm using the viper x rom(other great roms but this is my personal best)and the faux kernel.(0verclocking latest faux kernel). Thats all.Also u'll like to disable battery percentage as it gets ur mentality off ur use and more on looking at it.
-My trick is i just plugged my phone to the charger at 7pm(low battery).Took it off at 10pm(even though it was full before then).Slept at 12.Woke up the next day till evening it lasted and then one day after in the morning 8am i got 50%.(not really heavy use,light gaming,browsing,opening apps.....).Very impressive.I could use it the whole day again and it will die at night around 7 for cycle to continue.
-This keeps u from overnight charge to 2 days charge and its pretty awesome.
Again u cant use ur one x as a ps3(vita) or gaming console or even an ipad browsing experience and expect it to last u.Sure u can browse but......u know the risk on battery or else get locked bootloader motorollas .
NB:When battery percentage is on u are off focus always thinking of the battery.Just leave a bare battery bar.
Thank if i helped and peace.Hope it works for u.
HOX Grey,CID 02_001,Viper x rom,faux kernel and the food is ready.:good:
Click to expand...
Click to collapse
Wow, some white-spaces and extra new lines wouldn't kill you, but would read much better.
But let's get to the point: What about your Wifi, 3G, GPS and Bluetooth usage??? And where's the screenshot of the usage when you click on the graph, the details screen?

when i want to use System Tuner or Android Tuner with the Faux or NCX Kernel the Phone is really unstable, setting the Max CPU Freq dont have an effect and the unervolting to -25 mv let´s freeze my Phone. Why ever :crying:

I use power saver mode on, lower auto brightness mod on latest ordroid and setcpu with a few profiles and I get around 24 hours with heavy use.
Not sure if setcpu has any effect??
I set the max freq to 1ghz unless I am playing a game.
Also set max freq to 640 when screen is off.
Does setcpu work under JB Roms??
Sent from my HTC One X using Tapatalk 2

roy8846 said:
Not sure if setcpu has any effect??
I set the max freq to 1ghz unless I am playing a game.
Also set max freq to 640 when screen is off.
Does setcpu work under JB Roms??/QUOTE]
Download CpuSpy and check the frequency's your phone is running at. If it shows over 1ghz then Setcpu hasn't worked
Download: http://forum.xda-developers.com/showthread.php?t=1740622
Click to expand...
Click to collapse

disable google now, disable gpu rendering, disbale location tracking in google maps

thankss

...disable synching, disable WiFi, disable data, disable screen, take out your SIM card, switch off the phone, leave it in a drawer.

BenPope said:
...disable synching, disable WiFi, disable data, disable screen, take out your SIM card, switch off the phone, leave it in a drawer.
Click to expand...
Click to collapse
I tried this but I only get 4 and a half days leaving it on. Kidding.
I use my one x as a music player and thus has no sim or data or wifi on. Battery life is great
Sent from my GT-N7100 using xda premium

hackarchive said:
no laughs thats my plan:crying:lol:silly:
Click to expand...
Click to collapse
Same
Sent from my HTC One X using Tapatalk 2

kylec said:
I use my one x as a music player and thus has no sim or data or wifi on. Battery life is great
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Expensive MP3 player

Foggy79 said:
Expensive MP3 player
Click to expand...
Click to collapse
I know lol. I replaced it with a Note 2 but couldn't bring myself to sell or give away the hox. The screen is just too beautiful haha
Sent from my GT-N7100 using xda premium

BenPope said:
...disable synching, disable WiFi, disable data, disable screen, take out your SIM card, switch off the phone, leave it in a drawer.
Click to expand...
Click to collapse
forgot to say: bury it in your back yard at midnight!
I use ViperX (JB) and get a decent battery life of 1-1,5 days, average Wi-Fi, bluetooth, gaming, surfing.