Measuring Power Consumption of Laptop using Software

Is there any software which i can use to measure the power consumption of my laptop in watts? I've been trying to do that for a long time with no success. Thanks.

 

BatteryBar, it shows realtime drain.

 

using software, you are assuming that the 'sensors' are accurate, the software reads the sensors correctly, and that the data is presented properly.

Unless you know the how/what/where of the power measurements, 'software' is unreliable.

In many cases, the only place to truly measure power consumption is at the power supply. Unfortunately, there aren't many (or none?) laptops or batteries that have current/voltage sensors that can be read real-time so that data can be correctly correlated with other system activity.

 

Truth spoken ^.

 

Battery Bar doesn't show discharge or charge rate... any other softwares?

 

?? Mine does, and it's not the pro edition.

 

Try RMClock, no install needed.

I would advice against Battery Bar. I had experiences with it on two laptops.

 

I was interested in same thing as sean473. I was wondering if I took the battery out and plugged the laptop in to the wall through one of those products that measure power consumption would that give me accurate readying? If this is possible its not ideal situation but something is better then nothing.

 

If you have an intel laptop and take the battery out it might not give you the right measurement because speedstep will probably downclock the processor.

 

Basically yes. It depends on the accuracy of the power meter.

Another way would be to look at Notebookjournal.de who have published power measurements of many laptops.

Why do you think that would happen?

I don't think it will.

 

I've had that "feature" on 2 distinctly different notebooks... but since I said that and tried it.. my CW won't do it. So just disreguard my comment.

 

If its really important to you this is the only way to go:
http://www.newegg.com/Product/Produ...ctronic+Gadgets-_-P3+International-_-82715001

I have one and its vital for part of my reviews and also was very educational to find how much power OTHER devices in the house use not just my laptop.

I made a spreadsheet of every device, its power draw and average time on and was able to see where all our money goes for power costs.

 

I bought one of those too. A couple of weeks later I sold my plasma TV.

 

Wrong topic?

 

No, look at the post above me

 

Oh, I see. Damn plasmas and their power usage...

 

Yep told my boss that before he bought his new plasma, LCD is the way to go. Also I would use any display as a computer display and plasma is more prone to burn-in and stuff so I would definitely stick with LCD for more than one reason.

What annoys me most are devices that use gobs of power when in power save mode. My U2410 moniors use like 15w when sleeping, so turning them off saves me 45w of power but im affraid I am to lazy to turn all 3 of them on/off every time I want to do something and it confuses my video card and makes it go wacky since I run a 5760x1200 desktop.