Operation Manual
Therateatwhichyouusebatterypowerdetermineshowlongyoucanusethebatteryofyourcomputer
betweencharges.Becauseeachcomputeruserhasdifferenthabitsandneeds,itisdifficulttopredicthow
longabatterychargewilllast.Therearetwomainfactors:
•Howmuchenergyisstoredinthebatterywhenyoubegintowork.
•Thewayyouuseyourcomputer.Forexample:
–Howoftenyouaccesstheharddiskdriveorsolid-statedrive.
–Howbrightyoumakethecomputerdisplay.
–Howoftenyouusethewirelessfeatures.
EnablingthebatteryalarmontheWindows7operatingsystem
FortheWindows7operatingsystem,youcanprogramyourcomputersothatwhenthebatterypowerfalls
belowacertainlevel,threeeventsoccur:analarmisinitiated,amessageisdisplayed,andtheLCDturnsoff.
Toenablethebatteryalarm,dothefollowing:
1.StartthePowerManagerprogramandthenclicktheGlobalPowerSettingstab.Forinstructionson
howtostartthePowerManagerprogram,see“AccessingLenovoprograms”onpage13
.
2.IntheAlarmsarea,setthepowerlevelpercentageandtheactionintheLowbatteryalarmsectionand
Criticallylowbatteryalarmsection.
Note:Ifyourcomputerenterssleeporhibernationmodewhenthebatterypowerislow,butthealarm
messagehasnotyetbeendisplayed,themessagewillbedisplayedwhenthecomputerresumes.Toreturn
tonormaloperation,whenthemessageisdisplayed,clickOK.
Chargingthebattery
Itisrecommendedthatyouchargethebatterywhenthebatterypowerremainingislow.Forexample:
•Whenyoufindthatthepercentageoftheremainingpowerislow.
•Whenthepoweralarmalertsyou.
Ifanacoutletisconvenient,connecttheacpoweradaptertothecomputerandtheacoutlet.Dependingon
thebatterysizeandthephysicalenvironment,thebatterywillbefullychargedinaboutthreetosixhours.
Thebattery-statusiconhelpsyouidentifythatthebatteryischarging,andthatthebatteryisfullycharged.
Note:Tomaximizethelifeofthebattery,thecomputerdoesnotstartrechargingthebatteryiftheremaining
powerisgreaterthan95%.
Managingthebatterypower
Toachievethebestbalancebetweenperformanceandpowersaving,adjustyourpowerplansettings
bydoingthefollowing:
1.GotoControlPanel,thenchangetheviewofControlPanelfromCategorytoLargeiconsorSmallicons.
2.ClickPowerOptions.
3.Followtheinstructionsonthescreen.
Power-savingmodes
Thereareseveralpower-savingmodesthatyoucanuseatanytimetoconservepower.Thissection
introduceseachmodeandgivestipsontheeffectiveuseofthebatterypower.
•Screen-blankmode(forWindows7only)
32UserGuide