You can also left click on Properties instead (after you right click on your network adapter), click on the Power Management tab, and check the box that says “Allow the computer to turn off this device to save power.”

Some newer laptops with the Intel Mobile Pentium® chip have a button somewhere on the laptop itself, for instance on the front, to enable you to easily turn your wireless on or off. You may have to check your laptop’s manual to find out if you have a button and if so, where it is.

CPU Throttling

The Intel Mobile Pentium® laptops also sport a feature known as CPU Throttling (and named SpeedStep™ by Intel), that actually slows down your processor when you’re running on the battery. When you’re plugged into your AC, your processor runs full speed ahead. But when you unplug that cord, it shifts into a lower gear. A processor running at a lower speed and using less voltage saves your battery even that much more juice.

So now you have a number of tools to implement in order to save your computer’s precious battery power. But maybe instead on that next long distance flight, you might want to think ahead and book a seat with a power outlet.