Voltage control settings

Feartheghost, I was just thinking maybe its evwryones different battery that control how low u can uv. Like we were just talking about not all batterys equal. Im starting to think that is the case. You think battery or hardware. Others chime in as well. If I get a new battery I will see if I still get sod where I was before. Ill post back later on it.

It's possible, I think it depends how 'weakened' the battery has become over time that will affect how well you can undervolt. I would image a fresh new battery would be capable of undervolting more than one that has been used for a prolonged amount of time. Hardware could have an affect on it as well tho, but I'm definitely leaning more toward the battery as the main source.
 
How did you guys go about to get these settings?

You go to your applications drawer and locate the Voltage Controls (should be near the bottom.) Access that and you can set things up in there. In order to try different setups out be sure to set the schedule to one of your choosing, set the limit to 1000 as this is reccommended by most. Then set the undervolting settings for the ones labeled 1000 and below (there will be 7.) After you set that up press the menu soft key at the bottom of your phone and select apply for now, try that out for a portion of a day to see how your phone reacts. Also read up to learn more about it through this thread and you can find some information and links through the Community Rom thread.
 
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So I flashed the ComROM on the girlfriends phone couple days ago and started playing with the Voltage control settings today and the phone has bombed horribly now. I read through this thread and I did moderate settings -50 pretty much on everything but the last 3 -100. I unplugged her phone at 1pm and she is at work texting me and she said she is at 27% so in 5 hours she has dropped 70% that doesn't seem right. So I have a two part question
1) I haven't read this but do I need to re-calibrate the battery when I change settings?
and if i do
2) is using the BatteryCalibration app from the market the same as wiping the battery stats in the CWM?
 
So I flashed the ComROM on the girlfriends phone couple days ago and started playing with the Voltage control settings today and the phone has bombed horribly now. I read through this thread and I did moderate settings -50 pretty much on everything but the last 3 -100. I unplugged her phone at 1pm and she is at work texting me and she said she is at 27% so in 5 hours she has dropped 70% that doesn't seem right. So I have a two part question
1) I haven't read this but do I need to re-calibrate the battery when I change settings?
and if i do
2) is using the BatteryCalibration app from the market the same as wiping the battery stats in the CWM?

1) Yes
2) Yes

And just like doing the wiping of batt stats, it will take several full discharge and charge cycles before you see any real results from the undervolting of the kernel through voltage control.
 
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So I flashed the ComROM on the girlfriends phone couple days ago and started playing with the Voltage control settings today and the phone has bombed horribly now. I read through this thread and I did moderate settings -50 pretty much on everything but the last 3 -100. I unplugged her phone at 1pm and she is at work texting me and she said she is at 27% so in 5 hours she has dropped 70% that doesn't seem right. So I have a two part question
1) I haven't read this but do I need to re-calibrate the battery when I change settings?
and if i do
2) is using the BatteryCalibration app from the market the same as wiping the battery stats in the CWM?

Yes when you are satisfied with the settings you need to re-calibrate the battery from either CWM or using that app you mentioned. Be sure to wipe the battery stats at 100% then you want her to use the phone regularly all the way till it hits 5% then charge it back up to full if possible with no interference from usage. After this you will need her to use and to charge the phone regularly for 2-3 days to notice a change in battery life. Also if you want some other tips and pointers on how to improve battery life check out FearTheGhost13's thread Simple Steps to Help Improve Battery Life [Updated: 5-1-11]. Hope this helps and report back if you are still having issues.
 
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Been messing around. I am fairly new, my eyes are killing me from reading all the posts but am gettin the hang of things. Here is what I am running for past two days. Phone has been on since 0900 hrs, did some surfing, bluetooth, phone calls, checked emails etc. It is now 2252 hrs and I am at 71% on bat.

Scheduler: sio
Limit: 1000

1000 thru 600 is -75
400 thru 100 is -100

No issues, played angry birds and was as smooth as a babies buttocks.

This ran pretty well for me, except my phone would lock up when backing out of the camera app. I adjusted everything +25, so we'll see how that goes
 
1000,900,800,600,400,200,100 all set to -75. Combined this with using wireless when in range of a wireless AP and turning it off when none available has made my battery life great.
 
I am currently using -50 from 1000 under and my battery life has been perfect... Have only lost 30% battery in the past ~18 hours. Going to give it another couple days then may try -75 throughout. I really think it just depends how "fresh" the battery you are using still is that will determine how well you can undervolt and how good of battery life you will have. It's common sense to me that the older the battery gets the less battery life you can maintain. But I'm really liking the direction this thread is taking. Keep up the good work everyone I think this thread will be very helpful to everyone!
 
I am currently using -50 from 1000 under and my battery life has been perfect... Have only lost 30% battery in the past ~18 hours. Going to give it another couple days then may try -75 throughout. I really think it just depends how "fresh" the battery you are using still is that will determine how well you can undervolt and how good of battery life you will have. It's common sense to me that the older the battery gets the less battery life you can maintain. But I'm really liking the direction this thread is taking. Keep up the good work everyone I think this thread will be very helpful to everyone!

75 is about as low as I can go. Tried 100 in a couple spots and my device was laggy and I had the SOD couple times so that's the reason I went with 75 across the board and no problems.

Also, using two batteries, one came with phone and purchased second when got phone back in December. They are in good shape.
 
I currently have the following setup, and battery life has been outstanding :
1200, 1000, & 800 set @ -50.
600, 400, 200, & 100 set @ -25.
Scheduler is at deadline.

Also downloaded Root System Tools from the Market, and set the governor @ conservative, which seems to help.
 
This may be a total newb question. but in the voltage settings from 1600-100 where you have the slider bar. There is no positive integer correct? I select -75, save as boot and when I reboot it just says 75 without the minus sign but the slider bar is in the same place. Am I safe in assuming that's just a small bug in the program and that "75" is actually "-75"?




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Last edited:
This may be a total newb question. but in the voltage settings from 1600-100 where you have the slider bar. There is no positive integer correct? I select -75, save as boot and when I reboot it just says 75 without the minus sign but the slider bar is in the same place. Am I safe in assuming that's just a small bug in the program and that "75" is actually "-75"?

Correct no positive values its all negative.
 
I currently have the following setup, and battery life has been outstanding :
1200, 1000, & 800 set @ -50.
600, 400, 200, & 100 set @ -25.
Scheduler is at deadline.

Also downloaded Root System Tools from the Market, and set the governor @ conservative, which seems to help.

So you have your higher clocks set at a lower voltage?
 
So you have your higher clocks set at a lower voltage?

Yes. It has been extremely good on battery life. I was able to go 24+ hours on moderate use. I really think that Root System Tool is beneficial also. It has settings similar to SETCPU where you can select the governor I.e. conservative, performance, interactive, etc.When I had it on conservative, it goes into "Deep Sleep " and my battery percentage stayed the same from 11 pm to 5 am the next morning.
 
Update:

Originally Posted by T3CH9ICIAN View Post
Ive been playing and running voltage controls on this kernel for around 2 weeks while it was on my EB01 so i set it back up identical to what it was before which gave me great performance and batt life and that is as fallows

1200mhz: 1300-25=1275mV
1120mhv: 1300-25=1275mV
1000mhv: 1275-25=1250mV
900mhv: 1275-25=1225mV
800mhv: 1200-50=1150mV
600mhv: 1175-50=1125mV
400mhv: 1050-75=975mV
200mhv: 950-75=875mV
100mhv: 950-75=875mV

these setting were working great for me before so thats were ill start with this rom but all is good so far was asked to copy paste here notthat im posting in 2 threads


I've been using this setting and would like to share my experience. Scheduler:sio, combined w/ Green Power Saver free. Light to moderate use: looking up stuff in google, light gps usage to test connectivity, played games during lunch break, good amt of texting, watch some video clips, and checking email (k9, gmail, yahoo) --> 34% battery life left and my phone has been running for 43 hours and 5 minutes.
 
Just switched to these settings
1120 -50
1000-75
900 -75
800 -75
600 -75
400 -125
100 -125
Camera worked fine angry birds ran smooth noticed a little lag on screen rotation. I did switch from noop to sio When I used noop I could not drop below -100 anywhere. I also did not use the 200 setting. I will post tomorrow how these are working.
 
Heres a stupid question. How do I know the settings are working as they should be? Is there a way to test the settings?
 
Heres a stupid question. How do I know the settings are working as they should be? Is there a way to test the settings?

If you don't get any lag or glitches , or screen freezing up or SOD, if you phone doesn't shutdown and reboot on it's own, the settings are working. Once you start getting any of these symptoms, that means your phone doesn't like the settings you are trying at that moment.
 
Heres a stupid question. How do I know the settings are working as they should be? Is there a way to test the settings?

When you bring up the menu in VC you have an option to apply these settings for now to test but be sure to have a stable setup saved as boot settings so you dont have any SODs.
 

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