sometimes battery percentage always stuck at one point for example at 65% or 85% and not moving when charging(phone on) if i restart it and suddenly it goes up to 99% is that from rom or need battery calibrated? or does my battery is damaged?
how long your battery last when playing 3D game or wifi browsing on airplane mode and every radio turned off + brightness on 5%?
already undervolt at minimum in dodova kernel with max speed at 1.2 ghz but the phone still get warm when playing 3D game near the camera,if i underclock it at 1ghz or maybe 800mhz will it save significant battery and reduce heat?
amdultra said:
sometimes battery percentage always stuck at one point for example at 65% or 85% and not moving when charging(phone on) if i restart it and suddenly it goes up to 99% is that from rom or need battery calibrated? or does my battery is damaged?
how long your battery last when playing 3D game or wifi browsing on airplane mode and every radio turned off + brightness on 5%?
already undervolt at minimum in dodova kernel with max speed at 1.2 ghz but the phone still get warm when playing 3D game near the camera,if i underclock it at 1ghz or maybe 800mhz will it save significant battery and reduce heat?
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Dude, first of all, I'd suggest to stay away from under volting anything as it severely affects performance and life span of the hardware. It needs a lot of testing to get it correct, else it simply damages the hardware. Yes you may get more battery life but it wouldn't be a huge difference as per stock.
As per your first problem, simply calibrate your battery using battery calibrator from the market. Do this with defaults volt values.
As for 3d games, yes mine too gets hot but that is due to the gpu as well, so underclocking only the cpu won't help. And if you underclock both of them, then it will affect gameplay.
My phone lasts for at least four hours with mobile network on, but that is because I am using a 3460mah battery, not the default one.
thank you for answering
i just want to play 3D game above 2 hour more i will calibrate my battery and trying to underclock than undervolt it to 1 ghz , on 1.2 ghz is still play gta 3 all max with smooth framerate
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any help????
my wife's battery life is so bad
I use set cpu and turn down the speed when the screen is off. My battery performance is almost equal to what I used to get from the Droid1. It'll last me all day with moderate usage,
I use SetCPU as well but I am a little more aggressive.
ScreenOff = 300Mhz
Less than 50% Batt = 800Mhz
Less than 25% Batt = 600 Mhz
I also have it set to throttle down to 800Mhz when temp goes above 50C but thats not really about Battery Life.
You really don't notice the lowered CPU at all. Especially during phone calls or TXTing.
I think the real savings is in the screen off. My guess is the stock automatic scaling is not doing a good enough job on it's own when the phone is sleeping. and most of our battery life was being blown away in standby.
With those settings I have been able to go almost a day and a half on a charge with moderate use where before even light use would only get me 6-8 hours.
And that is with a BP6 not a 7!
With those settings as your battery goes lower the longer it will take to drain. It really was remarkable.
Computer Dreams said:
any help????
my wife's battery life is so bad
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Disable WiFi or BlueTooth ..
I use SetCPU to help battery life but someone told me it's not needed on the SGS2 as it already scales CPU for demand. True?
leedavis said:
I use SetCPU to help battery life but someone told me it's not needed on the SGS2 as it already scales CPU for demand. True?
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Interesting point you raise actually.
I've just installed Setcpu and used the on demand governor. I left the values as default (200mhz for minimum and 1.2 ghz for maximum) - with no overclock.
I've immediately noticed swiping through the screens is a bit smoother and the biggest improvement is the gallery. All my photos appear much smoother. Before the gallery app was a bit lagy.
I haven't set any profiles yet such as screen off.
Every Android phone I've owned scaled the cpu, I think they all do. I've found that with setCPU my battery gets drained much faster en no real benefit in smoothness.
jzuijlek said:
Every Android phone I've owned scaled the cpu, I think they all do. I've found that with setCPU my battery gets drained much faster en no real benefit in smoothness.
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Have you tried this yet though on the Galaxy S2?
There is definitely less lag than before - as stated, specifically in the gallery app. Just generally swiping feels more responsive as well. Battery is still pretty awesome, especially when using Lightening Rom 1.1 and the Android battery calibration app.
Hmm. I'll try SetCPU on the SGS2 and post back the findings (Performance+Battery).
I don't know how can it get any more smoother, I mean its already SO smooth!
there are many points to use setcpu on gs2:
-for some reason I dunno, gs2 can't manage it's 1.2ghz without gettin too warm. downclock and get rid of the burn effect.
-gs2 sports a good management of gpu (it does most of the work and setcpu doesnt down\overclock that). downclockin doesnt affect UI or video o browsing experience at all. can even downclock at 500 max speed without any sides.
-the only side u ll see it's benchmark (quadrant downgrading to 2000) but I hope u won't pay attention to such an unseful thing. benchmark doenst mean nothing, daily usage it's the only point to look at.
my settings: conservative, 200min 800max.
battery draining doesnt belong to setcpu this time, look to other settings.
alexleon said:
there are many points to use setcpu on gs2:
-for some reason I dunno, gs2 can't manage it's 1.2ghz without gettin too warm. downclock and get rid of the burn effect.
-gs2 sports a good management of gpu (it does most of the work and setcpu doesnt down\overclock that). downclockin doesnt affect UI or video o browsing experience at all. can even downclock at 500 max speed without any sides.
-the only side u ll see it's benchmark (quadrant downgrading to 2000) but I hope u won't pay attention to such an unseful thing. benchmark doenst mean nothing, daily usage it's the only point to look at.
my settings: conservative, 200min 800max.
battery draining doesnt belong to setcpu this time, look to other settings.
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IT IS TRUE. I agree with every single line you wrote, it is just my expericence.
I have too setcpu conservative and undercloked 800 Mhz.
There no slow down or lag at all... But I am wondering if it gives a real boost to battery life. I am not sure of this.
I'll keep you guys posted... But I think that an undevolted Kernel it is really a need as for the solution of the damn dual core ginger bug that is sucking 20% of my battery every day
Well,from my experience with my Desire and Desire HD(won't even bother with the Hero,I had no real knowledge then),governors can make a huge difference.I for one like smartass or interactive governors(mostly the same).I wouldn't suggest conservative,interactive does the job much better.Tasks get done in less time and the CPU throttles down more quickly.Other than that,you can underclock or overclock all you like,it never made any big difference in battery life for me(Unless Sammy's CPUs are different in that aspect-Snapdragons are really "overclock-friendly").That's personal preference after all!
Anyway,the best solution IMO would be a vdd_levels interface.For those who don't know what it is,it is a mod made by -snq(Meet him at the Desire forums-That guy's a true LEGEND!He can patch/modify anything!),which practically allows you to change the voltage levels of the CPU on the fly rather than having to stick with the values hardcoded into the kernel.Using this and a simple script in GScript to change values that won't survive reboot or in init.d to be applied on boot,you can find the optimal voltages for your CPU(Don't forget,every CPU is unique and different),thus reducing heat and maximizing battery life.
If a dev brings that to the SGS2 it will be a big step in the right direction as far as I'm concerned.
I use SetCPU without issue, but only to run profiles (i limit the device to 500mhz when the screen is off). The rest of the time it scales itself up to 1.4GHz without fuss and using stock voltage. Battery life is fine, best ive had for an android device.
Wow, I've taken SetCPU off but left JuiceDefender on and my battery life is fantastic. At 70% after slightly heavier than normal use (used for listening to music for a couple of hours this morning) and been off charge for 8.5 hours.
SetCPU seems counterproductive on SGS2
leedavis said:
I use SetCPU to help battery life but someone told me it's not needed on the SGS2 as it already scales CPU for demand. True?
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Click to collapse
I did set ondemand which is a little more reactive and slightly smoother.
Though System Tuner is less cpu-consuming and much more useful on the SGS2. No need for all those complicated settings from setCPU. Only changing governor and changing frequencies on standby are useful.
leedavis said:
Wow, I've taken SetCPU off but left JuiceDefender on and my battery life is fantastic. At 70% after slightly heavier than normal use (used for listening to music for a couple of hours this morning) and been off charge for 8.5 hours.
SetCPU seems counterproductive on SGS2
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Juice Defender uses as much battery as it saves this is fact, i have SepCPU set to 200 Min - 800 Max - On demand and have Juice Defender Ultimate and i thought it was great but it was recommended to me that i could save more battery by not using this, initially i was skeptical but tried it and i was astonished at the results, my battery life improved by 9 hours (i carried out a test with JD and without)
Anyone who says SetCPU uses up loads of battery is talking nonsense,it actually saves battery if configured correctly.
I am using Check Rom with set CPU I have it 1.2ghz max and 200. Using conservative governer. I been off charge for 15hrs, however I am using light usage I am on 72% screen on has been 5h 25m at time of writing. Not yet calibrated the battery.
jonny68 said:
Juice Defender uses as much battery as it saves this is fact, i have SepCPU set to 200 Min - 800 Max - On demand and have Juice Defender Ultimate and i thought it was great but it was recommended to me that i could save more battery by not using this, initially i was skeptical but tried it and i was astonished at the results, my battery life improved by 9 hours (i carried out a test with JD and without)
Anyone who says SetCPU uses up loads of battery is talking nonsense,it actually saves battery if configured correctly.
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What are the settings are you using for the setcpu program in your S2?? Did you remove the Juice defender application?
I've install Rom Toolbox,
and i saw there is a "CPU slider" where i control the clock speed.
i've put it to 1000MHz instead of 1200MHz and tested it for several days
i really dont feel any difference in performance.
browsing seems same, games like asphalt is equally smooth.
heating is similar, equally warm.
the only difference is quadrant benchmark.
1200MHz scores 3200-3400
1000MHz scores 2600-2900
frankly speaking, i'm not sure if there's any difference in battery life.
is there any way to accurately test whether the clock speed affects the battery life?
i've seen other threads, where there are very different opinions.
some say it will improve battery life, and some say its worst.
http://forum.xda-developers.com/showthread.php?t=726019
Quote: (SetCPU doesn't make a difference in battery life, it can only shorten it. The kernal already has the best settings for CPU speed built in.)
http://forum.xda-developers.com/showthread.php?t=1305465
Quote: (if you are able to stand the side effects of underclocking, it will surely boost your batery life.)
On my SGS2 program called CpuSpy shows that 1200MHz is about 1% of total cpu time (remember that governor is ondemand and CPU is at 1200 only when need it). If power consumption is directly proportional to clock speed by limiting it to 1000MHz you will get about 20% less power usage by 1% of time... looks like 0.2% power saved ? Soo if Your phone works for about 48h on one charging this way You can get about 6 extra minutes. It's just my guess...
Also have to consider if slower cpu causes screen to eat power for longer time... (because You have to wait longer for operation to complete)
slig said:
On my SGS2 program called CpuSpy shows that 1200MHz is about 1% of total cpu time (remember that governor is ondemand and CPU is at 1200 only when need it).
If power consumption is directly proportional to clock speed by limiting it to 1000MHz you will get about 20% less power usage by 1% of time... looks like 0.2% power saved ? Soo if Your phone works for about 48h on one charging this way You can get about 6 extra minutes. It's just my guess...
Also have to consider if slower cpu causes screen to eat power for longer time... (because You have to wait longer for operation to complete)
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HI, thanks for replying. I understand what you mean. the phone dont operate at 1200MHz all the time. but when using browser, and playing games, such as asphalt, it runs at max CPU usage almost the entire gaming duration.
Anyway.....
the real question is whether the clock speed is directly proportional to the battery consumption.
while reading your post, i thought of a brilliant ideal how to verify this.
the CPU slider not only allows you to set the max CPU speed,
you can set the min CPU speed as well.
So, i thought of an experiment, lets set the min & max CPU to 1200MHz,
this way, the phone will be running constantly at max CPU even when its idle.
let the phone be turn on till it run out of battery, record the time, T1.
then repeat again with max and min CPU set to 1000MHz.
record the time it is turn on till it run out of battery, record time as T2,
then compare T1 & T2, this could certainly work.
it would be nice if any member here happens to have 2 sgs2, and tried them ;-)
There are two more things to consider
1. CPU is not the only element that consumes power.
2. SGS2's Exynos is always clocked at 200MHz when the screen is off - check if this minimum slider affects that too.
Please let know how your experiment goes.
Regards
when the screen is off, the phone will be in "deep sleep" state. i think thats less than 200MHz.
anyway, i wont be doin this experiment any time soon.
you see, this is my only phone, i need to use it.
i dont have much oportunity to leave it and wait for it to run out of juice.
still, i'll try it when i have the chance.
My current setup is as follows
-Weekly #3
-Faux's 1.0GHz 0.2.3 (no UV)
-N_-1.77.30P radio on AT&T
The battery often reaches temperatures in the 40s (Celsius) and the CPU in the 50s.
This happens when I do normal activities like web browsing or texting.
I don't experience battery drain when using my phone as a feature phone.
If I play games, even the simplest ones like Angry Birds or Dragon Fly, my battery hits 45+ C and my processor into the high 50s. The battery drains almost 1% every 2 minutes when doing this.
If I listen to music (through headphones with Google Music app from the market and offline music), I lose 1% every 6 minutes (almost exactly) even with the screen off and device unused for that period.
My idle battery life is perfectly fine, often only losing 1-2%/hr without use.
Is this normal?
its extremely normal... lots of threads like this(could have searched?) if you want to improve it underclock. Also your phone will shut off automatically if it gets too hot so don't worry
i'm running CM7 and underclocked to 608 mhz and runs everything with no problem even some games then i crank it up if its really necessary in those settings my phone barely gets hot and has good battery life
I got my OPX yesterday, and I love it. Battery life is good, I have SOT of 3 hours and still 43% left.
However, when playing light games, it reaches 60°C very quickly. For example Minecraft PE with low render distance.
My GPU is underclocked to max 330mhz, my CPU is not underclocked but undervolted (-75mv). Using blu.spark kernel on Oxygen 2.2.1.
The battery is draining a lot faster when playing as well.
Is this normal?
Edit: It's much better with CPU limited to 1.2GHz. But a bit laggy.
With 1.2GHz is only goes up to 49°C.
I would manually set voltages until they're the lowest you can go. I've never had mine heat up and I run emulators. You should be able to bring your max clock speed to around 980mv or so which for me has never produced heat. I have my phone over clocked to 2.57ghz and I've never had any problems with heat.
RJDTWO said:
I would manually set voltages until they're the lowest you can go. I've never had mine heat up and I run emulators. You should be able to bring your max clock speed to around 980mv or so which for me has never produced heat. I have my phone over clocked to 2.57ghz and I've never had any problems with heat.
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Could you post your whole settings list please?
I would really appreciate that!
mafioso16 said:
Could you post your whole settings list please?
I would really appreciate that!
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If you ever decide to switch to Boeffla I have a profile called Swell that I work on and have published. Haven't used Blu Spark since I started using Boeffla when it was released