Laptops For Dummies, 6th Edition
Book image
Explore Book Buy On Amazon

Your laptop was built to consume less power than its desktop computer cousin. The laptop uses a special processor that draws less power and produces less heat. Everything inside the laptop case is geared toward battery savings. Even so, they do draw power.

Here’s the short list of items that consume the most power in a laptop:

  • The screen

  • The hard drive

  • The optical drive

  • The audio system (speakers)

  • The dial-up modem

  • The wireless network interface

  • The (wired) network interface

  • The Bluetooth radio

What else? Peripherals! If you plug a USB anything into a laptop, it draws power. Major culprits are external hard drives and mice.

All the items listed above consume power when in use, especially the screen and even more so for a touchscreen display. By not using these devices, or by rationing their use, you can save power.

Many of these power-hogs are governed by using power management tools in Windows: The display can be dimmed, hard drives un-spun, and other features disabled or run in a low-power mode.

About This Article

This article is from the book:

About the book author:

Dan Gookin wrote the very first For Dummies book in 1991. With more than 11 million copies in print, his books have been translated into 32 languages. PCs For Dummies, now in its 12th edition, is the bestselling beginning PC book in the world. Dan offers tips, games, and fun at

This article can be found in the category: