Both my wife and I have VZW galaxy s3, mine is rooted and I have an extended battery, hers is stock. My battery, however, drains insanely fast, with very little usage. I installed the app 'cool tool' (monitors cpu usage/frequency) on both of our phones, and noticed that while hers changes from 200-384-1512MHz constantly, mine is locked on 1512MHz. First of all, why is mine locked on 1512 MHz? Secondly, could this be what is draining my battery so rapidly?
Thanks.
Yes, that is why your batt is draining quickly. If your CPU tool can't tell you what app is using the most CPU then find another that will (I use System Panel). So, causes...It could be an app or it could be something you have done to your phone.
Have you used SETCPU or some other CPU setting app to change your CPU governor and/or min/max clock rate? If your governor is set at "Performance" that will lock your CPU rate to max.
Are you running a non-stock ROM? If the ROM has CPU/governor settings, did you mess with them?
If it is an app, a good CPU monitor app will tell you which one and then you can get rid of it.
---------- Post added at 09:02 AM ---------- Previous post was at 08:53 AM ----------
Oh, and you can also go to Settings...Battery and see what is using a lot of battery.
Related
I'm using the Faux Kernel on my Skyrocket. I'm using Set CPU for speed control, under-clocking for more battery life.
I head the terms UC, OC, UV and OC. When I use Set CPU, I assume that when I set maximum CPU speeds, I'm under-clocking. But what is under-volting? Is that different? Is there an advantage to doing both?
Harry
There is an advantage to undervolting you need either fauxs app or systemmtuner to do so.
Undervolting is giving the cpu less power and asking it to do the same amount of work it was doing before
Sent from my GT-P7500 using xda premium
That sounds a bit more dangerous in terms of doing damage to the phone or having reboots etc. when you are giving the circuity less power than it was designed.
For those who chose to undervolt for power savings, it is usually done in conjunction with under-clocking, or is it a one or the other type thing?
Not really, under volting is not as dangerous as over volting (used to also achieve higher overclocks). Over volting can actually damage hardware if you provide too much juice.
Under volting just reduces the voltage, if its not enough the app freezes or worse the phone reboots. If that happens, bump it up one more step (+12500) and you should be fine. Find where you can go low but still be stable (for me it happens to be -87500) you will save more battery.
Dixit
all good correct info. I highly recommend fauxclock, its very user friendly. I have my phone undervolted -100mV and underclocked to 1.2 and I'm getting 13 hours heavy usage with around 5 hours on screen time, with NO juice defender. For this phone, that's pretty good
icenight89 said:
all good correct info. I highly recommend fauxclock, its very user friendly. I have my phone undervolted -100mV and underclocked to 1.2 and I'm getting 13 hours heavy usage with around 5 hours on screen time, with NO juice defender. For this phone, that's pretty good
Click to expand...
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My exact setup. -100mV UV, and 1.188 gHz UC. Went from 100% to 0% in 1 day 7.5 hours with 3 hours of screen on time. No juice defender either. I think its pretty food. Using faux 009u, btw.
Sent from my SAMSUNG-SGH-I727 using XDA
Only issue I got with Fauxclock is that it saves the CPU clocks I set (say 1.298ghz max) but it doesnt actually save the voltage after a reboot. I look at the VDD table and its still stock.
So only way to get it to work is to manually edit the VDD table itself. Not sure if this is by default that fauxclock doesnt actually save the voltages after a reboot.
Dixit
Don't see fauxclock in the application store, sorry, Google Play Station.
Thats cause its not in the Google Play. Its a separate app at this location
http://rootzwiki.com/topic/4550-app09-beta-snapdragon-dual-core-oc-control/
Dixit
Got it, thanks. And the under-volting is so easy with Fauxclock, I've set it down 100.
So I've got SetCPU doing the CPU speed, and Faux for the voltage. Seems a bit redundant, since Faux also does CPU speeds, but SetCPU has some cool configuration settings where you can actually have multiple settings for CPU speed based on various conditions such as battery life remaining, processor temperature, time of day, phases of the moon . So I guess I have to keep them both. Hope they don't interfere with each other.
Fauxclock has very basic CPU clock settings, it was created just for that faux compatible kernels so the original developer didnt spend weeks on it. It was just a simple and fast and effective GUI to set min/max clocks and also voltages (global scale). You can however set one other clock which is the "screen off" clock, but thats about it.
harry_fine said:
Got it, thanks. And the under-volting is so easy with Fauxclock, I've set it down 100.
So I've got SetCPU doing the CPU speed, and Faux for the voltage. Seems a bit redundant, since Faux also does CPU speeds, but SetCPU has some cool configuration settings where you can actually have multiple settings for CPU speed based on various conditions such as battery life remaining, processor temperature, time of day, phases of the moon . So I guess I have to keep them both. Hope they don't interfere with each other.
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Click to collapse
they will, use one or the other. U can manually change global vdd table and use setcpu, or forego advanced profiles in setcpu, but u can't/shouldn't use both
FauxClock force closes on launch for me..
EDIT: Getting a Faux kernal fixed that. Wow I feel dumb.
Shadeslayers said:
FauxClock force closes on launch for me..
Click to expand...
Click to collapse
Are u using faux kernel?
Any tips or thread about how to manually change global vdd table so that I can use SetCPU for the profiles and adjust voltage manually?
Is there a risk to that? If I set it and the phone won't boot, it sticks!
use Gideon UV/OC script and change vdd as u see fit. If it doesn't work u can always flash Gideon stock back
icenight89 said:
use Gideon UV/OC script and change bed as u see fit. If it doesn't work u can always flash Gideon stock back
Click to expand...
Click to collapse
What exactly is the difference between flashing Gideon's script or just using FauxClock? Thanks!
fauxclock gives u dynamic min/Max and voltage control as per user settings. Gideon is pre-set and makes use of init.d script. u can change it, but every change requires a reboot
So recently I've become too lazy to constantly charge my Captivate and began to experiment with undervolting/underclocking it. Has anyone found optimal voltage for battery life? I've currently got every step of 200mhz down 100 volts and underclocked to a max of 800mhz. I'm on Semaphore kernel 2.9.5sc.
freshlimes said:
So recently I've become too lazy to constantly charge my Captivate and began to experiment with undervolting/underclocking it. Has anyone found optimal voltage for battery life? I've currently got every step of 200mhz down 100 volts and underclocked to a max of 800mhz. I'm on Semaphore kernel 2.9.5sc.
Click to expand...
Click to collapse
There isn't a optimal setting as all phones act different. Testing is the best you can do.
which cpu governor are you running? that may have more effect than underclocking/undervolting on battery life.
user Stempox has a nice post on cpu governors here
http://forum.xda-developers.com/showthread.php?p=28647926
the screen on time and data/gps traffic, and apps that keep the phone awake, do more to effect power drain than other factors. so, if you manage those, and choose the governor that suits you preferences, then undervolting and underclocking aren't needed, IMHO.
you can tweak the governor settings with Semaphore manager, if you really want to do that too.
the thing is, you may end up keeping the screen on longer than you would at higher cpu speeds, which would counter any battery savings. also, undervolting can increase the error rate, which means further delays while phone is awake.
hope this is helpful in your pursuit of fewer charging cycles.
Sent from my SGH-I897
Well as the title suggests, I need battery help. I have a regular T-Mobile HTC One S (of course...) S4. Now that is probably the least useful information. Lets get deeper into the specs. So I have PACman ROM. Jellybean 4.2.2. MAR 14 2013. I have a custom kernel. It is Bubba, OC. (overclock...) I have these as my SetCPU settings: 1026MHz max, 810MHz min, governor intellidemand, scheduler (what is this?) bfq. Now I am a WiFi user. I like to play a game or two. But I am afraid of playing them because of my battery. I use Pandora. I like to listen to it during school. I text pretty often after school. Before school 100-90%. That's 50 minutes. During school 90 to 60 or 50%. That's about 7 hours. Music only. Now I have no idea if this information is relevant or not, but if someone can suggest an idea, thank you in advance.
You could probably lower your minimum frequency quite a bit. The lower the less battery it will use. I haven't played with setcpu on this phone (have to install after I write this if I remember) but previous phones suffered from minor instability if it was set too low and might reboot. But easy enough to experiment and find what works for you... Just don't sent your high limit too low or that can negatively impact battery.
Sent from my HTC One S using xda app
lampel said:
You could probably lower your minimum frequency quite a bit. The lower the less battery it will use. I haven't played with setcpu on this phone (have to install after I write this if I remember) but previous phones suffered from minor instability if it was set too low and might reboot. But easy enough to experiment and find what works for you... Just don't sent your high limit too low or that can negatively impact battery.
Sent from my HTC One S using xda app
Click to expand...
Click to collapse
Would you recommend like how high I should set it? I want to be able use it without any lag or choppiness.
I would use whatever the 1500 setting is - 1512 I think. It really won't spend much time at max anyway so that won't consume much at all.
Sent from my HTC One S using xda app
---------- Post added at 08:32 AM ---------- Previous post was at 08:29 AM ----------
There are also a bunch of great battery monitoring software. Better battery stats and gsam to name a couple... They're great at showing what is consuming your battery and if there is anything you WANT to do to limit the consumption; i.e. if you find Pandora is using most of your battery that will probably be acceptable as you won't want to give up listening to music.
Sent from my HTC One S using xda app
I am trying to undervolt the i9505 to increase battery life.
It's easy to do once we root and flash a custom kernel allowing it.
Reason for doing so: I am rather disappointed with battery consumption currently. Even after removing all bloatwares and deactivating almost everything, it's hard to reach more than 4h30 screen on time.
So I reduced all CPU voltages about 25 - 50mV and now forgot what are default voltages as usual softwares (Set CPU and Voltage Control) don't keep track of default voltages anywhere. I couldn't find them by searching via Google neither...
Could somebody post the default voltages of the i9505?
Did anybody try under-volting about -50mV on each frequencies and noticed some improvements in battery life?
I've undervolted every frequenzy by -75. I can get 5 1/2 hours screen on time on a 24 hour usage.
Running ParanoidAndroid 4.3.
Sent from my GT-I9505 using xda app-developers app
Nice, it seems there is a noticeable improvement.
Could anyone post default voltages? And how much you reduced (still rock stable) in order to get a trend of this S600 undervolting capabilities.
To help newbies and others finely tune there device using certain kernel and tweak setups
Running deadline maxed at 2475 I believe haven't upgraded kernel yet heard a lot of people were getting green screens
Anyone chime in
N not bad
tmack4life said:
N not bad
Click to expand...
Click to collapse
So the only thing you've tweaked is scheduler = deadline and cpu freq at max?
Maxed out is I think 2700. I have mine set to 2476
Dam no setups anyone here
Still nothing lol
tmack4life said:
Still nothing lol
Click to expand...
Click to collapse
One sec and I'll give you my setup
2SHAYNEZ
So basically for people that don't know 1 on-demand governer = clock speed is maxed at user choice 2 ondemandx same as on-demand but screen off clock speed gets locked at I think 500 3 battery saver locks in at users min clock speed set 4 perormance locks in users max clock speed there are others but these are the most used combine that with governer speeds etc etc and don't be afraid to correct me if I'm wrong tia
Here is my setup with Poweruserv1 ROM with Rin kernel 1.8.5. Using Fauxclock ,G3 speed tweek, And velocity. Undervolting doesn't seem to stick but I try to keep it -24v
2SHAYNEZ
2SHAYNEZ
What's the best kernel settings for better battery?
Shanes using power user you can switch to conservative or I think they have a powersaver governer then clock it at a top speed where your phone still functions but saves power Shane also has his settings undervolted -24v
kalani91 said:
What's the best kernel settings for better battery?
Click to expand...
Click to collapse
You can undervolt a little but not a lot cause it will cause instability .. Try out different govs....use greenify... Keep screen on low brightness...under clock the CPU a bit... Maybe try 1958 max with adaptive gov. Hope you get what your looking for. I use a Mugen 6200mah battery which does amazing with battery life. And I mean amazing. I went 1day 15 hrs off charge with 10 1/2 hrs screen on time with alof of gaming and youtube as we as browsing and social networking. Its a bit expensive but it is worth it in my eyes. Cheerz
2SHAYNEZ
---------- Post added at 05:10 AM ---------- Previous post was at 05:04 AM ----------
I've noticed doing a global undervolt doesn't stick... But so far individually changing each one seems to be sticking. ..... We will see I guess
2SHAYNEZ
Wish someone would step up and start making custom kernels for the D850.
shayneflashindaily said:
You can undervolt a little but not a lot cause it will cause instability .. Try out different govs....use greenify... Keep screen on low brightness...under clock the CPU a bit... Maybe try 1958 max with adaptive gov. Hope you get what your looking for. I use a Mugen 6200mah battery which does amazing with battery life. And I mean amazing. I went 1day 15 hrs off charge with 10 1/2 hrs screen on time with alof of gaming and youtube as we as browsing and social networking. Its a bit expensive but it is worth it in my eyes. Cheerz
2SHAYNEZ
---------- Post added at 05:10 AM ---------- Previous post was at 05:04 AM ----------
I've noticed doing a global undervolt doesn't stick... But so far individually changing each one seems to be sticking. ..... We will see I guess
2SHAYNEZ
Click to expand...
Click to collapse
What's your top 3 govs?
kalani91 said:
What's your top 3 govs?
Click to expand...
Click to collapse
Adaptive ,Wheatley, and probably interactive..... Ondemand always caused bootloops for me
2SHAYNEZ