overkruto.blogg.se - Use laptop without battery

To adjust the brightness, navigate to Settings > System > Display and adjust the slider to change the brightness setting (depending on your laptop's manufacturer, you may have keyboard shortcuts for this.

In Windows you can adjust the sound by clicking on the speaker icon located in the taskbar and either slide the volume down or click on the mute icon to turn off sound.

These settings vary depending on your operating system. A brighter picture or loud sound will cause more power to be drawn from your laptop. Extremely crappy.Turn down the sound and brightness. You can moderate use of WiFi or your hard drive, but you can't exactly moderate the use of your screen. I was surprised that the screen alone accounted for 25% of the total power draw of my laptop at idle.

For maximum battery life, dim your screen.

Putting your hard drive to sleep isn't worth it.

If you want to drain your battery lickety-split, run a bunch of apps that peg your CPU at 100 percent.

The CPU is, by far, the biggest consumer of power in a laptop.

But I think the rules here can be generalized to most laptops.

And these are all rough figures based on a sample size of one laptop. We can subtract the Prime95 number of 26 watts - which is entirely CPU-only- to estimate about three watts are used exclusively by the integrated Intel "extreme"* video hardware.īear in mind the kill-a-watt is only accurate to plus or minus a watt. Running 3dMark2001 produced a peak power usage of 29 watts. How much power does the integrated video use? How much power does the onboard WiFi use?

Intel Pentium M 1.2GHz low voltage processorĪll subsequent tests were run with the laptop connected to AC power and the battery physically removed from the machine.

It's an ultaportable 2 pound laptop of late 2003 vintage with the following specs: So I ran a few tests with my trusty kill-a-watt on my Dell Inspiron 300m. As battery life is always a concern with a laptop, I was particularly curious to see which parts of the laptop draw the most power. I've determined power usage on my desktop and on my server, but I hadn't gotten around to testing the power usage of my laptop. How Much Power Does My Laptop Really Use?