For laptop user,go to the Energy Saver control panel and change the settings that determine power levels for her notebook.This will help the user extend her battery life when the portable is on battery power.
Turn down the brightness of the LCD panel to the lowest comfortable level to achieve maximum battery life.
Turn off the wireless devices.This will definitely save the battery power.For instance,AirPort consumes power, even if you are not using its features to connect to a network.
Optical drives consume large amounts of laptop battery power to spin up CDs and DVDs. Eject CDs and DVDs if not currently accessing them
