So this 30 FPS cap is not gonna fly, can anyone give any input on which Kernel for lifting the cap does it the best while draining the least amount of battery life?
jasonleb1 said:
So this 30 FPS cap is not gonna fly, can anyone give any input on which Kernel for lifting the cap does it the best while draining the least amount of battery life?
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depends on the screen you have. as far as i know there arent multiple builds of the kernel to deal with battery concerns.
if you have a epson screen, youre in luck there is a kernel that works, or so the thread says.
if you have a novatec screen, there is a kernel that is a work in progess, that for me wont work with fresh 0.5.3
as far as im concerned (for i shant speak for everyone) everything is a work in progress, but more progress has been obtained for epson screens.
Ok, thanks!
Related
Just a quick question, and I'm sorry if this is elementary, but do the custom kernels that up the FPS cap on the EVO effect battery life? I'm guessing that one of two things are happening:
a) The cap is based somehow on the CPU/GPU before output and upping the cap will put more load on the CPU/GPU, lowering battery life.
b) The cap is based on something dealing with the output and upping the cap will have minimal or no effect on the battery life.
Which ever way, I'd just like to know before diving in.
Hi all,
I know there must be a number of threads on this, but I am amazed on how people can report that on there devices (t989/i727) that they can get over 24 hours of life.. Whilst having data on and auto syncing.. on there oem battery..
At this point in time i am running jugs 5.0 with darkside kernal and used nofrills cpu to u/c to 1.2 but i am only getting about 16-17 hours charge with basic usage ie: twitter checks and links ebay a few times a day couple of calls and moderate texting.. i havent been using power saving mode from settings as no one i have come across stating that they use it.. So i have seen gideons script for battery saving could i get an elaboration on how this works? and also are the files a simple flash via cwm?
Cheers in advanced.
I haven't tried Gideon Script so I can't speak for that. However, I do have some great battery saving suggestions for you. Try using the Streamline or Synergy Kernel. Although it is not as fast as darkside kernel and it will save you a significant amount of battery. Try it and see if its worth the sacrifice. Personally I found it well worth it as I value battery life more than performance.
Also, download the juicedefender app and set it up aggressive mode. This app is also another great tool for saving battery life.
Good luck!
anomy13 said:
I haven't tried Gideon Script so I can't speak for that. However, I do have some great battery saving suggestions for you. Try using the Streamline or Synergy Kernel. Although it is not as fast as darkside kernel and it will save you a significant amount of battery. Try it and see if its worth the sacrifice. Personally I found it well worth it as I value battery life more than performance.
Also, download the juicedefender app and set it up aggressive mode. This app is also another great tool for saving battery life.
Good luck!
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Thanks for that I flashed over faux's 10u kernal im gonna see how that goes for a couple of days so far it doesn't seem to be draining the battery but i will have a better indication in couple of days.
Faux is also hard on batteries as it is a high performance kernel but i suggest you try each one as i have. Right now im on streamline and its battery life is just awesome.
Sent from my SGH-T989 using XDA App
Juice Defender works miracles
Sent from my SGH-T989 using XDA
gideon's script basically UC and UV's to like around 900mhz and UV 50-75
I usually alter it and bump it to 1.2-1.3and UV to around 50 not 75.
It is better than using an app to control the cpu because it's part of the boot script. darkside kernel has something similar, you can alter it in the script also.
^those inputs on kernels are correct. But each phone reacts different on each kernel. synergy doesn't play nice with mine.
A lot of users who post 24 hour+ usage.. if you look at the graph and stuff.. you can see that it wasn't in use much. I would say the average for moderate usage 16-17 hours
and uhhh why do you need it to be 24 hours? Do you not have access to a charger for most of your day? You should be home by then and getting read for bed.. lol
And also, VOICE uses more battery than DISPLAY.
There are many other phone users who are jealous of our battery life, so be happy .
Teo032 said:
gideon's script basically UC and UV's to like around 900mhz and UV 50-75
I usually alter it and bump it to 1.2-1.3and UV to around 50 not 75.
It is better than using an app to control the cpu because it's part of the boot script. darkside kernel has something similar, you can alter it in the script also.
^those inputs on kernels are correct. But each phone reacts different on each kernel. synergy doesn't play nice with mine.
A lot of users who post 24 hour+ usage.. if you look at the graph and stuff.. you can see that it wasn't in use much. I would say the average for moderate usage 16-17 hours
and uhhh why do you need it to be 24 hours? Do you not have access to a charger for most of your day? You should be home by then and getting read for bed.. lol
And also, VOICE uses more battery than DISPLAY.
There are many other phone users who are jealous of our battery life, so be happy .
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This comes to my next question, understanding how to alter scripts what to do when you want to change something is something i would like to learn.. Is there any guides/tutorials as to how? I keen to learn this sort of stuff..
With regards to why I would like my battery to last is simple really, my shift times at work alter so depending on my day of course i have access to a charger but not at work, also if i were to be out for the evening I would be up at 4:30am leave my home by 5:20am (phone is unplugged) and go about my day if its the weekend and i am out and about without enough time to get a decent charge at home I would like to have peace of mind if my phone will have juice to see me through to about 3am.. So wanting a battery to last 24hrs would suit my needs. Without nit picking turn your phone off during the night for my job there could be emergencies that would require me to return to work and deal with whatever it maybe and of course personal emergencies.
Coming from a xperia x10 yes i am thank full i get the power out of the s2 compared to the x10 but if people are reporting better life why cant i have some of that
Cheers.
If you have access to wifi, enable wifi-calling, it'll save so much battery life.
ragnarok12 said:
If you have access to wifi, enable wifi-calling, it'll save so much battery life.
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Unfortunately I'm in Australia every time I am on wifi i get Error: ER05 "Invalid SIM card" so I'm guessing my carrier if not all of them here don't support this feature, which is a let down I personally hadn't heard of it until I got my t989 and flicked over wifi for the first time then read about it.. Oh well.
Ideally, it is always better to have your battery drain completely and then charge fully again. If you charge often without draining completely it will impact your battery in the long run to have shorter life span.
As far as wifi calling goes, try downloading an app called GrooVe IP lite. I live in Canada and I believe it works for outside U.S. users.
So i have Daemon Controller 3.2 something and I've seen a lot of places mention undervolting. I looked around but couldn't find much information on it.. nothing extensive anyway. So my question is: what are the good things about undervolting (besides battery life) and what are the bad things?
If i undervolt and improve battery life does it decrease performance? Any info here would be awesome. Thanks!
Info here
http://forum.xda-developers.com/showthread.php?t=1611620
PatimusXPrime said:
So i have Daemon Controller 3.2 something and I've seen a lot of places mention undervolting. I looked around but couldn't find much information on it.. nothing extensive anyway. So my question is: what are the good things about undervolting (besides battery life) and what are the bad things?
If i undervolt and improve battery life does it decrease performance? Any info here would be awesome. Thanks!
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The only thing I can think of that you might find as a benefit from U/V is improved battery life.
If you UnderVolt too far you risk freezing and/or damaging your device.
If you successfully undervolt without going too far and causing problems, you should see no negative effect on performance. Just better battery life.
I typically U/V around 50 for all clock ranges. I have never had any negative results doing this. But I haven't been able to prove I get better battery life either. I just take faith in the fact that I theoretically am. I do get wicked good battery life, but that is probably due to many things including kernel, rom, radio, clock speed settings, U/V settings, and other mods. All these together produce noticeable results, where any one by itself would not give any substantial or noticeable improvement.
TheAtheistReverend said:
The only thing I can think of that you might find as a benefit from U/V is improved battery life.
If you UnderVolt too far you risk freezing and/or damaging your device.
If you successfully undervolt without going too far and causing problems, you should see no negative effect on performance. Just better battery life.
I typically U/V around 50 for all clock ranges. I have never had any negative results doing this. But I haven't been able to prove I get better battery life either. I just take faith in the fact that I theoretically am. I do get wicked good battery life, but that is probably due to many things including kernel, rom, radio, clock speed settings, U/V settings, and other mods. All these together produce noticeable results, where any one by itself would not give any substantial or noticeable improvement.
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Okay cool, I get pretty good battery life too so maybe I'll just skip UV.. no awesome reward just a lot of risk
There is a balance for reward vs risk there. Undervolting by 50 isn't going to put your phone in danger. But if it gets me a couple percent/an hour of battery life, why not?
I'm a believer in doing all the little things that add up to something substantial. Undervolt, Battery MOD, wifi policies, screen on time, charging habits, Kernel, ridding of problem apps, using things like Juice Defender, etc. These all add up to give me better battery life than you can find on almost any non-Max phone. But it takes all of them together, and a constant eye oout for something else I could be doing.
Undervolting may help you.
I havent been a big fan...on my og Incredible it caused nothing but problems with signal...so I dont anymore although the Sense kernel by Dres is undervolted a tad.
Give it a shot and start with -25 increments. Will it affect battery life? Maybe, but engineering tends to dictate that lower voltages dont always affect discharge rates. Higher voltages certainly affect consumption though (and can also lead to major problems).
TheAtheistReverend said:
The only thing I can think of that you might find as a benefit from U/V is improved battery life.
If you UnderVolt too far you risk freezing and/or damaging your device.
If you successfully undervolt without going too far and causing problems, you should see no negative effect on performance. Just better battery life.
I typically U/V around 50 for all clock ranges. I have never had any negative results doing this. But I haven't been able to prove I get better battery life either. I just take faith in the fact that I theoretically am. I do get wicked good battery life, but that is probably due to many things including kernel, rom, radio, clock speed settings, U/V settings, and other mods. All these together produce noticeable results, where any one by itself would not give any substantial or noticeable improvement.
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I use the app SetCPU for CPU profiles. If I use something like Incredicontrol to undervolt, will it mess up my phone?
zaza224 said:
I use the app SetCPU for CPU profiles. If I use something like Incredicontrol to undervolt, will it mess up my phone?
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The only way to mess up your phone is to U/V too far and have the "Save for Boot" box checked and no NAND backup.
Make your NAND and run the U/V settings you choose for a day or two before you check the save for boot box. If it freezes up back off your settings a notch and run it for a couple more days.
I run about 50 under without any problems.
Let me start off with the good in this rant. This device is BEAUTIFUL and has A LOT of potential. Considering i just rooted it, it is even more fantastic BUT (there is always a "but" in life) here are my issues that i PRAY would go away. For some odd reason, though i have done everything i can to prevent it from happening, the battery life is just terrible! And here is the mind blowing part: My brightness is always at about 15-30 percent, my automatic sleep is at 15 seconds, i am never on 4G, NFC is off and my GPS is almost, always off. I recently learned that having a lot of black (Wallpaper, themes or simply a black display) going on prevents the display from eating up battery, therefore i've blackened what i use most (MMS, Gmail, Instagram and of course a black wallpaper) but after all of that, the battery still tends to suck major ball sack (sorry for the vivid image). If you must know i am using an AOKP rom, Jelly bean. I absolutely love the rom.
On behalf of that rant ^ .. Is there anything anyone could/would suggest i do in order to have a better experience with battery? Maybe a different rom that revolves around better battery life? Anything that i am missing to prevent battery from draining so fast? AM I THE ONLY ONE GOING THROUGH THIS?!
Last but not least, what gets me going and makes me want to punch something is the fact that my phone constantly, CONSTANTLY heats up for NO REASON (i'm assuming theres an actual reason but i have no idea what it is). After a full charge, i'd unplug the device and couple mins in after browsing web for like 60 seconds and texting, it'd start burning on the top of the screen and the back where the camera is. What is that all about?
And on behalf of that second rant ^ .. is there a solution for that? AM I THE ONLY ONE GOING THROUGH THIS?! lol
:crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying:
Check out what my battery looked like after a few mins from unplugging it. Screen, 67% ??????
Believe it or not... I had a battery go bad already on me. Now i was short charging it and stuff like that.. but still. The early builds weren't as efficient as this one is. You might try a new battery. Or the oem extended one. I have had good luck with both routes. Oh, and i'm stock.
Lots of battery drain and a hot phone means that it's trying to do something. Looking at your screenshot, you're not having any signal problems, which would lead me to believe it's a rogue app. What was your total screen on time during that 48 minutes?
Cilraaz said:
Lots of battery drain and a hot phone means that it's trying to do something. Looking at your screenshot, you're not having any signal problems, which would lead me to believe it's a rogue app. What was your total screen on time during that 48 minutes?
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i honestly don't remember, i THINK it was probably 32 mins because thats what i see every time i see the battery that way. If that makes any sense.
Which kernel are you running with that rom? I had a JellyBean rom with a kernel that increased overall, but my phone would often heat up and battery life was not the best. Changed roms and kernel and everything is cool now.
jeremyt727 said:
i honestly don't remember, i THINK it was probably 32 mins because thats what i see every time i see the battery that way. If that makes any sense.
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32 minutes of screen on being 29% of your battery. That makes roughly 110 minutes of screen on for the entire battery. Running a stock battery? I never did, but I think people have said 2 hours screen on is the low end for a normal battery. I could be wrong, though.
LGeX said:
Which kernel are you running with that rom? I had a JellyBean rom with a kernel that increased overall, but my phone would often heat up and battery life was not the best. Changed roms and kernel and everything is cool now.
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Heres a screenshot of the info :
2 hrs is the low end for OEM battery? I'm lucky to get over an hour and a half on OEM extended. GNex battery is unbelievably horrid.
mursepaolo said:
2 hrs is the low end for OEM battery? I'm lucky to get over an hour and a half on OEM extended. GNex battery is unbelievably horrid.
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Or the high end. I got mine as a replacement device for the Droid Charge, so I had to order a battery and back cover when they offered it to me. Since VZW had a 50% off sale on the 2100mAh battery and back, I went with that. So I've literally never used the standard OEM battery with the phone.
Try going to this link: http://minooch.com/franciscofranco/Galaxy Nexus/JB/Jelly Bean/
and downloading "franco.Kernel-r225-384GPU.zip" flash it in recovery like you would a normal rom. Franco's kernel is extremely stable and works magic for good battery life. Should also resolve your overheating issue. If not, I'd suggest a full wipe and installing a different rom.
LGeX said:
Try going to this link: http://minooch.com/franciscofranco/Galaxy Nexus/JB/Jelly Bean/
and downloading "franco.Kernel-r225-384GPU.zip" flash it in recovery like you would a normal rom. Franco's kernel is extremely stable and works magic for good battery life. Should also resolve your overheating issue. If not, I'd suggest a full wipe and installing a different rom.
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Terrific! So no need for a data/cache wipe? I can flash this over the current ROM I'm using? Backup I'll do of course but yeah.
jeremyt727 said:
Terrific! So no need for a data/cache wipe? I can flash this over the current ROM I'm using? Backup I'll do of course but yeah.
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I normally wipe cache, not sure if it's required. But yeah, it's not a new rom or anything, just different kernel to test out and see if the kernel is what was causing your battery issues.
I'm using the jbsorcery beta with the lean kernel and under clocked with the modded voltage and this is heavy usage on Facebook and texting and about 30 min on the phone I have about 2hrs 45min and im at 80%
Sent from my Galaxy Nexus using xda premium
Android 4.2.1
CyanogenMod 10.1 Snapshot M1 (21/1/13)
Franco Kernel R364
I'm trying to maximize my battery time.
(Power mode BeastlyBattery 192MHz~1036MHz, Governor: Lazy, IO Scheduler: deadline, Screen of Max Frew: 384MHz)
I want to UV my CPU (and maybe IVA and GPU also, does it helps too?) to save some battery.
Should I just decrease the voltage a bit, use stability test app and keep going till there will be errors,
or I can just decrease like someone else on the web and then keep going..?
Can it do something to the device? (because Its just undervoltage..)
For how long I need to run the stability test?
I saw this topic:
http://forum.xda-developers.com/showthread.php?t=1599025
and he says:
"1. It has been tested that the 700Mhz frequency is prefereable over the 300Mhz one, due to the drops on frequency signal of the phone."
Anyone tested this?
Does UV degrades preformance?
What is SmartFlex?
Anything else I need to know about that?
Im gonna make this one quick, so my apologies if I don't address your questions directly.
Prior to my Galaxy Nexus, I had a T-Mobile SGSII. I too had the belief that undervolting/clocking would improve my battery life substantially. It seemed to work but then I was only getting the results that I wanted to get, and thats because I went to extremes to lowering my screen brightness to minimum and using my phone a fraction of what I used to.
With the help of others and trial and error, my major conclusion is that undervolting/clocking, though normal headset use will not improve your battery life by a landslide. Android is so well optimized to save you as much battery as it can. Sure there are things here in there that interrupt that optimization such as bugs or kernel issues but that something even undervolting/clocking will not be able to solve.
If you do go into undervolting/clocking your device, please keep in mind that the most you will probably get out of it is maybe 45 minutes to 1hr extension, but thats not display time.
What you can do to improve your battery life is turn off whatever sync services you don't use, lower your screen brightness ( the display is the major battery hog in the GN and SAMOLED devices), use dark wallpapers and dark themes if apps support it, use wifi, disable 3G when not in use. The radio you use can also potentially affect your battery life and signal quality.
Those are just a few suggestions, the rest is up to you.
Good luck!
P.S. Kernels also add variation to the longevity of your battery life. It's been a very long time since I touched CM10 so I'm not gonna go and defame that ROM but do try something else that possibly offers better battery life. If MODs are a MUST for you, then you will be faced with a lower battery life compared to stock based ROM's. It won't be an extreme difference but the difference will be there. If I may suggest a ROM, try this one. I can honestly say I can get up to 3-4 hours of display time on it with about a 12 hour standby.
I read a lot on the web that it does help to battery time.. :S
anyone?
You're not going to see much difference. Running the cpu at a lower clock speed just means it will take longer to complete the same operation so you'll use just as much battery.
063_XOBX said:
You're not going to see much difference. Running the cpu at a lower clock speed just means it will take longer to complete the same operation so you'll use just as much battery.
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And undervoltage?
Different overnor?
Undervolting will have minimal effect during actual use and a governor is based on specific user needs. One might save me battery while another works better for your usage. You need to actually mess with setting instead of just asking others what they use.