Database Users

[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.
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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!
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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....
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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!
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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
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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

Best Kernel for battery

Which ROM performs the best in terms of battery performance. If you are using any Governor and I/O setting please do mention them.

PA rom...Franco kernel...ondemand settings...

I'm also curious on what you guys experienced.
I'm currently testing Franco R15 with Stock JB on my Nexus 4. It's the first day and I'm running for 9 hours with 1h 46M of screen time.
So I'm expecting about 3h 30m of screen time.
Will give it a fews days and report back. Then I'll try out Matr1x.

Please use search next time because there are threads with the same exact title. No such thing as a best kernel. It is subjective such as if you were to ask the question, what is the best car for conserving gas usage.
Sent from my Nexus 4 using xda premium

My first cycle (settings on signature) gave me almost 4hs of screen time.
Trying second cycle today.

calanizzle said:
My first cycle (settings on signature) gave me almost 4hs of screen time.
Trying second cycle today.
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your sig is wrong, unless you are running 4.1.2?

calanizzle said:
My first cycle (settings on signature) gave me almost 4hs of screen time.
Trying second cycle today.
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4.1.2????
Sent from my Nexus 4 using Tapatalk 2

This is what I'm getting constantly and I'm running Stock everything/rooted... not sure if I would leave stock with these numbers I'm getting... Anyone getting better numbers with custom ROM/kernel
Sent from my Nexus 4 using xda premium

fresh_TD said:
This is what I'm getting constantly and I'm running Stock everything/rooted... not sure if I would leave stock with these numbers I'm getting... Anyone getting better numbers with custom ROM/kernel
Sent from my Nexus 4 using xda premium
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That's really good. I'm getting 4 hours 45 min running Xylon 012 with Matr1x 3.0
Sent from my Nexus 4 using Tapatalk 2

Jefferyrbrown1983 said:
That's really good. I'm getting 4 hours 45 min running Xylon 012 with Matr1x 3.0
Sent from my Nexus 4 using Tapatalk 2
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I'm going to give francos kernel a run to see if I can squeeze a little more out the battery
Sent from my Nexus 4 using xda premium

I'm on Stock rooted using Franco's R15 kernel since a couple of days. Every charge cycle brings a slight improvement. Will test the kernel for a week and then flash Matrix's kernel and compare.

Thanks for letting us know.
Sent from a galaxy far far away.

Wish I had better battery life
Sent from my Nexus 4 using xda premium

for best battery : CM10.1 + faux kernel (the last beta) + intellidemand + UV -150mv .
+5h00 screen on

fresh_TD said:
This is what I'm getting constantly and I'm running Stock everything/rooted... not sure if I would leave stock with these numbers I'm getting... Anyone getting better numbers with custom ROM/kernel
Sent from my Nexus 4 using xda premium
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So ~5 hours screen time. And you got 1.4 days on WiFi with hardly any awake time. That's not really a good measure of battery life.
I don't know about everyone else, but I find the Nexus 4 gets really good battery life. Maybe not as good as the GSIII or the H1X+, but those have tremendously aggressive power-saving features.
Using faux kernel with Snake Charmer (caps max freq on all 4 cores) and Eco Mode (only allows 2 cores to be simultaneously active) provides adequate performance with very good battery life; even better if you undervolt. You will definitely beat the GS3 or H1X+ with those faux kernel settings. I don't use Eco Mode, because my phone lasts nearly a day, and I can charge it mid-day. I should probably be more conservative so I won't have to replace the battery as soon, buttphuckit, I do what I want.

I've used faux, Franco, motley, and Matr1x a lot. As of now, the best battery with performance goes to Matr1x by Mathkid. Version 2.5 undervolts by 150, which my phone runs fine. However, a few people had instability because it was too low for their devices. Enter v3.0, which undervolts by 100 (and you can uv even more using System Tuner or perhaps Faux app). Either way, great battery life (I routinely get 5 hours screen time with 16 hours battery time, or 4 hours screen with 24 hours total, etc).
Absolute best battery life is probably faux with his battery optimized settings (1.35 max speed, snake charmer, eco mode, and some undervolt by 100 or so). It runs fairly well, but it's not as quick and smooth as stock because it sacrifices some of that for battery (fair trade off if you need it because it's still a damn fast phone). People have gotten 6 and even 7 hours screen time. Obviously this won't happen playing games but it's possible with light browsing and texting and whatnot.
Motley's kernel also gets good battery and excellent performance. Franco's kernel does too, but not quite as good of battery because it doesn't support undervolting YET. When it does, it might be the best battery for performance of all (likely).
I use Matr1x daily and am happy with it. Some people, even smart devs, will sometimes tell you undervolt battery gain is negligible. However, at least with this device, it can make a huge difference because it handles such a big undervolt while remaining stable. It also stays much cooler and will run at high clocks longer before reaching the thermal throttling limit.
Anyway, some people might disagree, but these are my experiences. Franco has a huge following and for good reasons. His kernels are awesome. I just don't think the battery life will compete until he adds undervolting. He has said this will come when he feels it is stable and good overall. I'll probably switch then unless Mathkid adds more features to his like gamma control, etc.
Hope this is helpful. Btw, another thing I really like about Matr1x kernel is that he uses the older touchscreen driver which increases screen sensitivity. Many people complain about the nexus 4 screen sensitivity, and if that applies to you, this will fix that.
Sent from my Nexus 4 using Tapatalk 2

^^ A good write up, deserved its thanks. Am on latest rasbean & matr1x, never experienced smoothness & battery life like this. Screenshots at the Matr1x thread later today.
However, all users are different. Battery life WILL differ, that's the only certain thing.

[Q] best rom and kernel for a long battery life

i don't care about gpu or overclocking my device.. all i want is to unplugged the n4 form charger and go working in the morning and at night before bad to put it back in the charger - without it dieing on my before..
i had htc sensation and it last all day for me, i'm now 2 days with the nexus 4 , and after 12 hours the battery is dead.
i'm currently using Cyanogenmod 10.1 18/2/13 nightly . turn off locations, and Facebook sync. using only automatic brightness (witch my the way is very low), WiFi and gps and Bluetooth always off . 3g on.
thank you!

Usage varies across any ROM/kernel combo. No one can really say what's best, because everyone's usage varies. But, I can and will say, I'm having best battery life so far using asylum nightlies with matr1x 7.0 kernel. I have a very strict setup which I'm not getting into, but I am in no way limiting the function of this powerhouse. If that makes any sense. Currently sitting at 63% with almost 3 hours screen time. 50/50 3g/wifi and heavy use. think streaming, gaming, downloads. It would take me a very long time to describe what I do to get this battery life, but I would be willing to explain if needed.
Sent from my Nexus 4

I recommend AOKP build mr3, and Harsh's kernel. No need to tweak anything, everything is done for you and you get great battery life. Just my experience from it.
Sent from my Nexus 4 using xda app-developers app

I'm using paranoidandriod with Franco kernel. I get great battery life all the time every time. Download the kernel and leave the settings as is and let it do it's thing.
Note: This has been asked too many times. You can search up the old ones and you'll pretty much get the same answers that it all depends on what you do. Battery life is subjective. It depends on the user. If someone only uses their phone for calls and text they will get awesome battery life. If another person has the same setup as the first they did play lots of game and play videos and such, battery life would not be so great. Thus, both users will tell you different answers.
Just try them out and see for yourself.
Sent from my Nexus 4 using Tapatalk 2

scream4cheese said:
I'm using paranoidandriod with Franco kernel. I get great battery life all the time every time. Download the kernel and leave the settings as is and let it do it's thing.
Note: This has been asked too many times. You can search up the old ones and you'll pretty much get the same answers that it all depends on what you do. Battery life is subjective. It depends on the user. If someone only uses their phone for calls and text they will get awesome battery life. If another person has the same setup as the first they did play lots of game and play videos and such, battery life would not be so great. Thus, both users will tell you different answers.
Just try them out and see for yourself.
Sent from my Nexus 4 using Tapatalk 2
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Thats why xda did the sugestions on opening topics, and yes, it did apper, but not on our device..
Sent from my Nexus 4 using XDA Premium HD app

Battery life tips?

My nexus 4 has dissapointing battery life, can someone please tell me any tips to increase the battery life? Obviously, lower the brightness, dont have too many apps running, try not to browse on chrome for too long, etc etc. Does anyone use any of the battery saving apps out there? Any tips would be appreciated. Thanks. Also, I dont understand why there are no mods/cases with an extended battery. Obviously the battery is not easily removed but I'd be fine with a thicker nexus4 if I could double my battery life.

root it and run custom ROMs and kernels, undervolt it and whatnot.
You can just buy a portable battery pack you know.. They aren't exactly expensive and serve the sane purpose as an extended battery case.

When people say that such device has got a disappointing battery life.. I wonder what it means. If a battery offers a sot of 8hrs..would this thing satisfy all?
I've used S3 which people say has got great battery life.. I got more or less the same battery life in s3 as i get from nexus 4...
Anyways..trying custom kernel and undervolting.it could give you better results..
Sent from my Nexus 4 using xda premium

Sak3ater said:
When people say that such device has got a disappointing battery life.. I wonder what it means. If a battery offers a sot of 8hrs..would this thing satisfy all?
I've used S3 which people say has got great battery life.. I got more or less the same battery life in s3 as i get from nexus 4...
Sent from my Nexus 4 using xda premium
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Agreed. I have friends with s3s, one x and iphone5, and I honestly do not think the battery is bad at all. I'm pretty sure the battery lasts longer for me than for them. And I'm not one for "disabling features" either.
I'm running wifi/data both on and I never manually disable anything. My GPS is on 24/7, and I have all tracking options enabled (for google now). Using auto-brightness though. Still get 4h SOT and I stay 30+h normally without a charge. I do not game alot on my phone though!
I recently re-flashed google stock images (4.2.2) and franco's kernel. Also undervolted but if I dont get any "better" (in terms of heat) results I will definatly remove the undervolting.

Danny.ns said:
Agreed. I have friends with s3s, one x and iphone5, and I honestly do not think the battery is bad at all. I'm pretty sure the battery lasts longer for me than for them. And I'm not one for "disabling features" either.
I'm running wifi/data both on and I never manually disable anything. My GPS is on 24/7, and I have all tracking options enabled (for google now). Using auto-brightness though. Still get 4h SOT and I stay 30+h normally without a charge. I do not game alot on my phone though!
I recently re-flashed google stock images (4.2.2) and franco's kernel. Also undervolted but if I dont get any "better" (in terms of heat) results I will definatly remove the undervolting.
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This what you doing is putting up one heavy burden on the battery.Never disabling wifi/data & GPS on 24/7..Still getting 4Hrs sot out of 30hrs total battery life .If this is not great than i wonder what great would be..There is only Razor max which is gonna satisfy in terms of battery
PS->If you game a lot on Nexus 4,then the battery wont last longer

Guys u can try deep sleep battery saver app aka ds battery saver.....it puts your phone into deep sleep as soon as screen goes off.........getting 10+ hrs on single charge.......mhav a try
Sent from my A21 using xda app-developers app

Have you tried Battery Guru? Developed by Qualcomm specifically for the Snapdragon S4 to improve battery life

You can try greenify, I believe the concept of this app is great and overnight on WiFi and the rest left on I loose only 2-3 percent. And wakelocks are pretty much gone.
Sent from my Nexus 4 using xda app-developers app

Kernel for battery life.

Hello.
I'm looking for a kernel for the Nexus 4 of course with the best battery life.
I almost don't play games, I just need a kernel with gamma control, sound control, and one that would not cause stutter to the device with battery life.
I used Franco r203 and I had only 1:30hr screen time, now I'm trying Franco r203 Plus but it cause stutter and pretty much the same battery.
Any suggestions?
Thanks!

I'm currently using hells-Core and have 2 hours of screen-on with 40% battery left.
(Maybe there are better battery-friendly kernels out there, but HC performs pretty well.)

I enjoy Faux Kernel and undervolt 50 and under clock to 1.2 I can make it through a day no worries but this will depend in your usage as well. I do probably medium of everything such as social networking, internet browsing, emails and some games. I usually end the day with above 20%
Sent from my Nexus 4 using Tapatalk

Wassupdog said:
Hello.
I'm looking for a kernel for the Nexus 4 of course with the best battery life.
I almost don't play games, I just need a kernel with gamma control, sound control, and one that would not cause stutter to the device with battery life.
I used Franco r203 and I had only 1:30hr screen time, now I'm trying Franco r203 Plus but it cause stutter and pretty much the same battery.
Any suggestions?
Thanks!
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You can try to use r201 is more battery friendly if you like franco.

AndyTimE said:
You can try to use r201 is more battery friendly if you like franco.
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Thanks, already got Hellscore and its good .

As you would have already known by know battery usage depends upon ROM build and apps and your usage patterns. To extend the battery a bit more you can Hellscore,Matr1x,Piasek kernels...they gave the best battery life for me. Try and let know
Sent from my Nexus 4 using xda app-developers app

Hell score or matrix?which should i use i want to have Hood quality od sound

Both are best but Matr1x retains smoothness for me as compared to hellscore.Flash both and test for yourself
Sent from my Nexus 4 using xda app-developers app