28English you can put the computer in Sleep mode by pressing + . Thenclose and latch the display.When you are ready to use the computer again, unlatch and open thedisplay; then press and release the power button.Note: If the Sleep indicator is off, the computer has enteredHibernation mode and is turned off. If the power indicator is offbut the Sleep indicator is on, the computer has entered Sleepmode. In both cases, press and release the power button to turnthe computer back on. Note that the computer may enterHibernation mode after being in Sleep mode for a period of time.What to take to short meetingsA fully charged battery runs the computer for about 1.6 hours. If yourmeeting is shorter than that, you probably do not need to takeanything with you other than the computer.What to bring to long meetingsIf your meeting lasts longer than 1.6 hours, or if your battery is notfully charged, you may want to take the AC adaptor with you to plugin your computer while in the meeting room.If the meeting room does not have an electrical outlet, reduce thedrain on the battery by putting the computer in Sleep mode. Press + or close the display cover whenever you are not activelyusing the computer. To resume, open the display (if closed); then pressand release the power button.