User Manual

Checkingthebatterystatus
Moveyourpointertothebattery-statusiconintheWindowsnotificationareatocheckthebatterystatus.
Thebattery-statusicondisplaysthepercentageofbatterypowerremainingandhowlongyoucanuse
yourcomputerbeforeyoumustchargethebattery.
Therateatwhichyouusebatterypowerdetermineshowlongyoucanusethebatteryofyourcomputer
betweencharges.Becauseeverycomputeruserhasindividualhabitsandneeds,itisdifficulttopredicthow
longabatterychargelasts.Therearetwomainfactors:
•Howmuchenergyisstoredinthebatterywhenyoubegintowork
•Thewayyouuseyourcomputer,forexample:
–Howoftenyouaccessthestoragedrive
–Howbrightyoumakethecomputerdisplay
–Howoftenyouusethewirelessfeature
EnablingthebatteryalarmontheWindows7operatingsystem
FortheWindows7operatingsystem,youcanconfigureyourcomputersothatwhenthebatterypowerfalls
belowacertainlevel,threeeventsoccur:thealarmgoesoff,amessageisdisplayed,andthecomputer
displayisturnedoff.
Toenablethebatteryalarm,dothefollowing:
1.StartthePowerManagerprogram.See“AccessingLenovoprograms”onpage12.
2.ClicktheGlobalPowerSettingstab.
3.ForLowbatteryalarmorCriticallylowbatteryalarm,setthepercentageofthepowerlevelandset
theaction.
Note:Ifyourcomputerenterssleeporhibernationmodewhenthebatterypowerislowwithoutthealarm
message,themessageisdisplayedwhenthecomputerresumes.Toresumenormaloperation,clickOK
whenthemessageisdisplayed.
Chargingthebattery
Whenyoufindthattheremainingbatterypowerislow,chargeyourbatteryorreplacethebatterywitha
chargedbattery.
Ifanacoutletisconvenient,connectthecomputertoacpower.Thebatteryisfullychargedinabout
fourtoeighthours.Theactualchargingtimedependsonthebatterysize,thephysicalenvironment,and
whetheryouareusingthecomputer.Youcancheckthebatterychargingstatusatanytimethroughthe
battery-statusiconintheWindowsnotificationarea.
Note:Tomaximizethelifeofthebattery,thecomputerdoesnotstartrechargingthebatteryiftheremaining
powerisgreaterthan95%.
Tipsonchargingthebattery
•Beforeyouchargethebattery,ensurethatthebatterytemperatureislowerthan10°C(50°F).
•Chargethebatteryinanyofthefollowingconditions:
–Anewbatteryisinstalled.
–Thepercentageofpowerremainingislow.
–Thebatteryhasnotbeenusedforalongtime.
26T470UserGuide