How to Save Power on a Laptop (1)
So you want to save some juice on your laptop... find out how!
Steps
1.Be sure to make the brightness of your computer to the lowest setting that is comfortable. To do this, look for a purple "fn" button on the keyboard(usually next to the left ctrl key, sometimes the key has blue lettering instead of purple). After you've found the "fn" button, quickly search for another key with a purple or blue sun with an up or down arrow(usually on the arrow keys or on one of the F1-F12 keys). Now while holding "fn" press the button with the purple/blue sun and a down arrow.
1.Be sure to make the brightness of your computer to the lowest setting that is comfortable. To do this, look for a purple "fn" button on the keyboard(usually next to the left ctrl key, sometimes the key has blue lettering instead of purple). After you've found the "fn" button, quickly search for another key with a purple or blue sun with an up or down arrow(usually on the arrow keys or on one of the F1-F12 keys). Now while holding "fn" press the button with the purple/blue sun and a down arrow.
2.Turn off all background programs that are not needed because they take up processor space which will use more battery.
3.Check that bluetooth and/or wireless adapter is off (if it's built in).
4.Be sure to eject any discs out of your CD or DVD drive if you do not need them. The disc will still be spinning inside and consumes a ton of energy.
5.If you are running very low on power, or are watching a DVD, your laptop may have a way to turn off the LED lights (Power light, hard drive activity light, etc.). Check your owners manual to see how.
the article source:http://www.wikihow.com/Save-Power-on-a-Laptop
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