So my N7 arrived two days ago, and I immediately unlocked, rooted, and flashed some things. Currently running Codename Android with Trinity Kernel.
My battery is absolute crap now though. Its been two days so I thought the battery more but have settled by now. All auto sync off, brightness at lowest setting, apps sync every 4 hours, still bad! Does calibrating still work? I read somewhere that it was debunked and it didn't work. I would appreciate any help. I mean, my Maxx is getting better battery life.
I uploaded some screenshots of the battery after only 1 and a half hours.
Sent from my Nexus 7 using Tapatalk 2
dafuq?
My Battery life is without doing nothing ~1-2weeks (in my with 58% xD)
Use Stock Kernel
renes2 said:
dafuq?
My Battery life is without doing nothing ~1-2weeks (in my with 58% xD)
Use Stock Kernel
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Where can I find that to flash it?
Sent from my Nexus 7 using Tapatalk 2
Aliceics said:
Where can I find that to flash it?
Sent from my Nexus 7 using Tapatalk 2
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Go to the motley kernel thread in Original Development. He provides a mirror link for the stock kernel
I loved Trinity and the TKT app but for some reason im getting much better battery life with motley kernel. I originally did some troubleshooting and fixed some apps that were causing wakelocks. My battery life got a little better but not by enough (could only get 3 or 4 hrs screen on) so i switched kernels.
If you feel like experimenting do this:
Nandroid
Wipe Cache + Dalvik
Wipe System
Factory Reset
Flash CM10 nightly (any rom of your choice)
Flash GApps
Flash motley kernel (i used the 484 GPU version)
Fix permissions
Reboot
I get awesome battery life now and performance is great.
Your title should be something like this: "After rooting and installing battery draining rom and kernel I get bad battery life on my N7"
Stock JB and kernel should yield decent batter life.
With the proper rom and kernel the Nexus 7 easily match or better the googles battery life claim.
FYI the latest Trinity kernel is a battery hog.
noobandriod said:
FYI the latest Trinity kernel is a battery hog.
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if you use it at 1.7ghz it will be, but thats obvious. at 1150mhz, its as quick and wonderful on batteries.
simms22 said:
if you use it at 1.7ghz it will be, but thats obvious. at 1150mhz, its as quick and wonderful on batteries.
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I wouldnt go as far as saying its a battery hog, but i ran the kernel at stock clocks and while performance was much better than stock i still had tons of drain that i now dont have with a different kernel.
Ran Trinity kernel at 1150mhz and had awful battery. Back on stock ROM and kernel and seems to have improved a lot.
Sent from my Nexus 7 using xda app-developers app
I feel like the battery is pretty decent...
Get off those custom Roms and kernels until you understand how the device is meant to perform.
You appear to have 87% after 1.5 hours, that equals about 10 hours, how is that bad? I get about 8 hours if I am intensely playing with screens, apps and games, 2 days if I'm not doing much. Loses 2% at night with wifi off. No root.
trinity kernel and the pure aosp rom, at 1150mhz. id say not bad at all..
Trinity Kernel is a good kernel. I went overboard by saying it was a battery hog. I did have it overclocked up to 1500hz on-demand and it ate up battery faster then I would like. But this is with the newest one, a few of the older ones worked out better for me though.
noobandriod said:
Trinity Kernel is a good kernel. I went overboard by saying it was a battery hog. I did have it overclocked up to 1500hz on-demand and it ate up battery faster then I would like. But this is with the newest one, a few of the older ones worked out better for me though.
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yea, overclocking is mostly for fun, definitely not for battery life
640k said:
Get off those custom Roms and kernels until you understand how the device is meant to perform.
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I have some problems with *wakelock*
Related
I'm wondering what others have experienced as being the best setup for battery life on the N1? I'm running Cyanogen 7.1 RC1 and haven't been that happy with the battery performance.
desertflyer said:
I'm wondering what others have experienced as being the best setup for battery life on the N1? I'm running Cyanogen 7.1 RC1 and haven't been that happy with the battery performance.
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Latest CM nightly with juice defender ultimate nets me about 36 hrs normal use.
I've been using CM7.1 RC1 for a few weeks now... battery life did seem pretty weak but I then tried out JuiceDefender Ultimate. It actually made the battery life worse, which didn't make any sense... I gave the beta a try and it practically doubled the battery life right off the bat. I'm currently using the stock Aggressive settings for the beta so I'm assuming I could do better if I did custom settings.
ss4n1 with any kernel that works with it
Yeah, SSN1 is nice, but I have tried almost every kernel out there with a multitude of voltage settings and I have yet to see one that gets better battery life than the current CM7 one. I am not sure if the one they use for nightlies is different than the RC, but it is very very impressive for battery life. It doesn't have any fancy add ons or governers it is just low voltage and no frills.
Interesting when i use ss4n1 on top cm7 with slight uv and smartass or interx I yield way better batt
ctfrommn said:
Yeah, SSN1 is nice, but I have tried almost every kernel out there with a multitude of voltage settings and I have yet to see one that gets better battery life than the current CM7 one. I am not sure if the one they use for nightlies is different than the RC, but it is very very impressive for battery life. It doesn't have any fancy add ons or governers it is just low voltage and no frills.
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Sent from my Nexus One using XDA App
Interesting, last time I tried to run it over that kernel I didn't think it was working. No matter how far I undervolted it it kept running, usually if you push it that far it will freeze. I will try again when I get a chance. Were you using the scrip itself or ckz tools?
ctfrommn said:
Latest CM nightly with juice defender ultimate nets me about 36 hrs normal use.
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Click to collapse
Am running CM 7.0.3 with Tiamat 4.06. Tiamat increased my battery life a little. I installed JuiceDefender and battery life by the end of today will be more than double what I saw on 7.0.3 w/o Tiamat. ++1 for JuiceDefender
I haven't tried SS4N1 yet. I'll be trying it with MIUI.
Try using the stock CM7 kernel with Juicedefender, I think you will see a significant gain again. Tiamat makes a nice kernel, but it is not known for good battery life.
kendoori said:
Am running CM 7.0.3 with Tiamat 4.06. Tiamat increased my battery life a little. I installed JuiceDefender and battery life by the end of today will be more than double what I saw on 7.0.3 w/o Tiamat. ++1 for JuiceDefender
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Click to collapse
Try using the stock CM7 kernel instead, I think you will be pleasantly surprised at the additional increase in battery life. Tiamat makes some really nice kernels, however they are not known for good battery life.
U have to use the script czk tools is just a gui
ctfrommn said:
Interesting, last time I tried to run it over that kernel I didn't think it was working. No matter how far I undervolted it it kept running, usually if you push it that far it will freeze. I will try again when I get a chance. Were you using the scrip itself or ckz tools?
Click to expand...
Click to collapse
Sent from my Nexus One using XDA App
Not anymore, ckztool now includes an updated script as part of the program, check out the thread. He updated it about a month ago. It is nice cause you don't have to reinstall the script everytime you flash a new rom or an update. It installs the script each time you open and activate the program.
Get an extra battery from ebay for $5 (and charger $8) and keep that with you.
Beats any software tweak
If you don't mind carrying a battery around;-)
Sent from my Nexus One using XDA App
Just installed latest version of SuperOSR, new kernel combined with Incredicontrol to undervolt is producing pretty amazing results. It is a very cool Rom on top of it too.
...Who seems to be getting worse battery life since I've rooted and installed CM10 and Franco Kernel than stock.
Before with stock I was only losing about 1% every two hours on standby (sometimes even better I've no idea how)
Now I'm losing about 3% an hour on standby and also about 30% an hour screen time with just basic browsing (Screen brightness set to auto).
Also Media server is hammering my battery. Like I lost 3% battery in 15 mins without the screen on just playing music (not streaming) is that normal, I've come from an iphone 4s which didn't lose that in an hour :S
have i flashed it badly is there something else maybe i should try or are these stats about right ????
thanks guys
That's just the way it is just custom roms. When flashing, put your head between your legs and pray for the best. You can spend hours trying to figure out what's gone wrong, but you might never get an answer.
You can try underclocking your N4. Currently my dual-core Snapdragon S3 T-Mo Galaxy S2 is underclocked to 810MHz from 1.5GHz and performance is still great. I'm guessing you can UC your N4 to at least 1.2-1GHz and performance will still be great because of the quad-core Snapdragon S4 Pro CPU. Also, what governor and i/o are you using?
Sent from my SGH-T989 using xda premium
Hi Gents
Thanks for the reply, yeah it does seem a bit of a hit and miss kinda situation, I'm not masively bothered, im hoping eventually someone will stumple across a fix for the way the screen murders the battery life but im not holding my breath. Still love the phone, really getting used to it now, have tried (and failed) many times to switch to android, must be honest, this is the closest I've come so far to waving bye bye to ios, android is really really fantastic as an os, it's also super pretty to look at these days, stock apps like contacts, calender and the phone app itself are beautiful.
Let the phone and battery have several cycles, it will improve, eventually
thanks mate !!
android88 said:
You can try underclocking your N4. Currently my dual-core Snapdragon S3 T-Mo Galaxy S2 is underclocked to 810MHz from 1.5GHz and performance is still great. I'm guessing you can UC your N4 to at least 1.2-1GHz and performance will still be great because of the quad-core Snapdragon S4 Pro CPU. Also, what governor and i/o are you using?
Sent from my SGH-T989 using xda premium
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Click to collapse
Under clocking your phone isn't a viable situation. It's a phone, what's the point in it if you're not going to use it to your fullest when my phone lasts through the whole day going from 384-1500?
Some battery tips for op:
- download better battery stats (Google it for a xda version) use this to debug wakelock and ensure your phone is deep sleeping under cpu states. You can also use cpu spy to check cpu stats. Better battery stats is a must need.
- disable Google latitude in maps. Disable the automatic reporting and any other checked marks
- disable Google now cards that you have no use for
- disable gps (some apps use gps and drains battery when it keeps using gps when it isn't necessary)
- ensure your governor is interactive and on latest version of Franco (r20 is very good)
Sent from my Nexus 4 using xda premium
Just stick with the stock kernel that comes with cm10.
peachpuff said:
Just stick with the stock kernel that comes with cm10.
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Highly advise doing that. Other kernels are way more optimized whereas CM is focused on the ROM itself and not optimizing the stock kernel.
I believe CM10 uses stock Google kernel anyways (could be wrong).
Use Franco Kernel or anybody elses kernel that you choose to.
Mine definitely improved after rooting and flashing custom ROM. Battery life when I was still stock was horrible.
m3lover1 said:
Mine definitely improved after rooting and flashing custom ROM. Battery life when I was still stock was horrible.
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Click to collapse
Kernel is what makes battery life better, not a ROM.
zephiK said:
Kernel is what makes battery life better, not a ROM.
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Click to collapse
A rom can make the battery life better as well...
AshtonTS said:
A rom can make the battery life better as well...
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A ROM has very minimal battery life improvements, it isn't as significant as a kernel. Hence the definition of "better"
Hello, I just wanted to ask which ROM has the longest battery life (in screen hours)...
The most battery frienly rom i have ever tried was liquidsmooth...
What do you think?
Guys please help out a new N4'er like myself. I'm stock right now and the number of Roms are kinda overwhelming. I'm only interested in battery life. I'm not in the mood to go flashaholic searching for that one ROM.
Sent from my Nexus 4 using XDA Premium HD app
The most important thing is the kernel and the apps you have installed.
Find the ROM with the features you like and flash a battery friendly kernel. I currently use Matrix kernel because the lower CPU idle makes the phone sip battery while the screen is off, leaving you more for actual use.
Good luck. Also, INB4L.
There is no "best Rom" for battery. It's all in how you use your phone, what apps you use, the signal strength in your area and of course the kernel you flash and how you set that kernel up.
100 different people could reply with the Rom they feel is best for battery and which kernel and you still may have different results than they do
Sent from my Nexus 4 using Tapatalk 2
From what I've learnt the kernel directly dictates battery life.
but I've personally opted for lean roms. If you're using a heavy rom and frequently putting load on the processor surely the battery will burn down fast. I've been using rasbeanjelly bouncing between franco/trinity and the battery life has been awesome for me.
Btw franco's r121 is godlike for me right now, in terms of both performance and battery life.
Im using liquidsmooth which comes with matrix kernel in the official release.
Im getting very good battery life probably because the cpu min is lowered to 288mhz instead of the normal 384.
Performance on the rom is great also with antutu scores over 20000
Ive tried francos, for some reason it didnt quite work for me but it is very popular because of the great balance between battery and performance. Youll get even more battery life out of faux and if you want blazing fast speeds try out trinity
Battery depends on the kernel, not on the rom.
Battery life depends on a number of factors, kernel being one of them. If you set your screen brightness at maximum high, you will see battery drain like water down the toilet. Screen brightness is the single major factor. Kernels don't really matter. It's the apps you install and run on your phone that can kill battery life. Apps like Facebook will suck down your battery like there's no tomorrow. Auto sync'ing and pushing and pulling data to and from your phone will make your battery life go down really fast. GPS and using google maps can contribute mightily to your battery woes as well.
To keep your phone from dying, just get an external battery pack and charge your phone as necessary. I have a 5400 mAh pack that can charge my n4 at least a couple of times. I never worry about running out of battery and I use my phone the way it's supposed to be used.
Underground_XI said:
Battery depends on the kernel, not on the rom.
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Click to collapse
Battery does depend on the rom...
For example a linaro compiled rom will require less work of the cpu to move the os due the optimization.
Also some rom have init.d scripts that can help battery life a lot and there is the possibility that some programs like systemUI can have a little bug that the user dont know about it but its draining battery
The battery life depends on a lot of factors of the rom
Underground_XI said:
Battery depends on the kernel, not on the rom.
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Click to collapse
You are completely wrong. As said before, battery life depends on a lot of things. The kernel is a big factor, but not everything. The way u use ur cpu, the scripts u apply or ur build.prop configurarion can be very decissive.
IMHO paranoidandroid 3.1 is the most battery saving ROM
Enviado desde mi Nexus 4 usando Tapatalk 2
Anyone got any good r65 kernel settings for battery optimized? I love the Franco Kernel but my battery life is lacking. Especially when its in standby mode with the cover closed.
BTW, Im running PA 3.65 and downloading 3.67 as I type this..
The default settings are actually about as good as it gets, short of underclocking. You might consider trying another ROM to see if your battery problem improves at all. I liked PA a lot, but even without HALO my battery life was terrible.
ProblemChyld said:
Anyone got any good r65 kernel settings for battery optimized? I love the Franco Kernel but my battery life is lacking. Especially when its in standby mode with the cover closed.
BTW, Im running PA 3.65 and downloading 3.67 as I type this..
Click to expand...
Click to collapse
Use better battery stats to see what is keeping your device awake, it should use very little power in sleep.
May try using one of many apps that can turn off wifi in sleep and check out greenify.
This may not be exactly what you want to hear, but I switched over to Aospal, a linaro version of PA. I have had significantly better performance and battery, both of which vanilla pa failed to deliver. I also am using m kernel, and I lowered the CPU frequency cap to 1200 MHz. I am using otherwise its default settings. My battery life is more than doubled from when I was using vanilla pa. So if you are interested in switching, (it still has everything from pa!) this is working for me.
Sent from my Nexus 7 using Tapatalk HD
twizmwazin said:
This may not be exactly what you want to hear, but I switched over to Aospal, a linaro version of PA. I have had significantly better performance and battery, both of which vanilla pa failed to deliver. I also am using m kernel, and I lowered the CPU frequency cap to 1200 MHz. I am using otherwise its default settings. My battery life is more than doubled from when I was using vanilla pa. So if you are interested in switching, (it still has everything from pa!) this is working for me.
Sent from my Nexus 7 using Tapatalk HD
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Thanks for the insight on that. I guess I will give it a try and see how the battery life is.
Sent from my Nexus 7 using Tapatalk HD
Currently using r65 and coudnt complain about the battery.
While checking out roms, you could also look at apps you install. Some very poorly coded apps (especially facebook) would just eat up your battery, and use a lot of memory.
Coming from an LG G2 (long story), battery life is what I miss the most. The nexus 4 has about half the screen on time than my g2 did.
I'm already unlocked and rooted but still stock ROM. Are there any Roms that significantly improve battery life?
I found smart 3G on Cataclysm to be pretty good at saving battery.
ROMs and kernels have little to do with battery. Your usage, signal for mobile data and WiFi, screen brightness, your configuration for location services, gps and the like and your apps determine your battery life.
brian85 said:
Coming from an LG G2 (long story), battery life is what I miss the most. The nexus 4 has about half the screen on time than my g2 did.
I'm already unlocked and rooted but still stock ROM. Are there any Roms that significantly improve battery life?
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Click to collapse
I'd try Paranoid. I used it for a while after using stock and I found that the battery improved.
roms have absolutely zilch when it comes to battery life. only thing rims can do with battery is reduce it. generally, the more added mods/features a rom has, the worse the battery life. but not always. battery life is determined by hiw you personally use your phone, how you set it uo, what apps you use, and the quality of your phone/data connection. everything else, including kernels, have a very minimum effect on battery.
Well
When I was with Carbon, the play store thing killed my battery to 3hrs on screen time
Switched over to Purity Rom with Hells kernel and I have 5-6 on screen time
WiFi on all the time, no data or GPS or Bluetooth.
Mostly Reddit and a game or two, and a movie
Not the Rom but the Kernel is decisive
Nuhro said:
Not the Rom but the Kernel is decisive
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Click to collapse
Kernel doesn't make much of a difference either. See simms22 post above
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
Kernel doesn't make much of a difference either. See simms22 post above
Sent from my Nexus 5 using XDA Free mobile app
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Okay, but why is the battery life better with an another kernel?
I use the HeelsCreed kernel and Mahdi rom. My battery life is better with the HeelsCreed kernel as with the Kernel of the Mahdi rom.
P.S.: I know my english is bad, sorry for that
Nuhro said:
Okay, but why is the battery life better with an another kernel?
I use the HeelsCreed kernel and Mahdi rom. My battery life is better with the HeelsCreed kernel as with the Kernel of the Mahdi rom.
P.S.: I know my english is bad, sorry for that
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Click to collapse
set up your CPU and everything else just how the kernel sets it up for you, and you'll get the same battery life. be more active, set things up manually.
brian85 said:
Coming from an LG G2 (long story), battery life is what I miss the most. The nexus 4 has about half the screen on time than my g2 did.
I'm already unlocked and rooted but still stock ROM. Are there any Roms that significantly improve battery life?
Click to expand...
Click to collapse
can you tell the story please , anyway ROM has weee little to do with battery life , its mostly on how you use it and the kernel you are using as well as sync loops and dodgy leaky apps , my personal setup is rom = paranoid android and kernel = hellsdoctor , using synapse app i switched the maximum clock speed to 1.2 Ghz , and changed the maximum core online to two, gpu is overclocked by default , rest is, location settings are turned off only turned on when required , brightness is set to 50 % , no dodgy apps on the phone , i can squeeze about 5 and half hours sometimes 6 its good enough for this battery size though and hope it works out for you :good: