ThinkPad Edge E440 - Page 49

Tipsonusingtheacpoweradapter
•Whentheacpoweradapterisnotinuse,disconnectitfromtheelectricaloutlet.
•Donotbindthepowercordtightlyaroundtheacpoweradaptertransformerpackwhenitisconnectedto
thetransformer.
•Beforeyouchargethebattery,makesurethatitstemperatureisatleast10°C(50°F).
•Youcanchargethebatterywhentheacpoweradapterisconnectedtothecomputerandthebatteryis
installed.Youneedtochargethebatteryinanyofthefollowingconditions:
–Anewbatteryisinstalled.
–Thepercentageofpowerremainingislow.
–Thebatteryhasnotbeenusedforalongtime.
Chargingthebattery
Whenyoufindthatthepercentageofpowerremainingisloworwhenthepoweralarmalertsyouthatthe
remainingpowerislow,youneedtochargeyourbatteryorreplaceitwithachargedbattery.
Ifanacoutletisconvenient,plugtheacpoweradapterintoit,andtheninserttheconnectorintothe
computer.Thebatterywillbefullychargedinaboutthreetosixhours.Thisisaffectedbythebatterysize
andthephysicalenvironment.Youcancheckthebatterychargingstatusatanytimethroughthebattery
statusiconintheWindowsnotificationarea.
Note:Tomaximizethelifeofthebattery,thecomputerdoesnotstartrechargingthebatteryiftheremaining
powerisgreaterthan95%.
Maximizingthebatterylife
Tomaximizethelifeofthebattery,dothefollowing:
•Usethebatteryuntilthechargeiscompletelydepleted.
•Rechargethebatterycompletelybeforeusingit.Youcanseewhetherthebatteryisfullychargedfromthe
batterystatusiconintheWindowsnotificationarea.
•Alwaysusepowermanagementfeaturessuchaspower-savingmodes.
Managingthepowerplans
Toachievethebestbalancebetweenperformanceandpowersaving,adjustyourpowerplansettings.
Toaccesspowerplansettings,dothefollowing:
1.ForWindows7:StartthePowerManagerprogramandthenclickPowerPlanorAdvanced➙Power
Plan.
2.ForWindows8andWindows8.1:Gotothedesktop.Right-clickthebattery-statusiconintheWindows
notificationareaandclickPowerOptions.ThenclickChangeplansettingsthatisnexttoyour
powerplan.
FormoreinformationaboutthePowerManagerprogram,refertothehelpinformationsystem.
Power-savingmodes
Thereareseveralmodesthatyoucanuseatanytimetoconservepower.Thissectionintroduceseach
modeandgivestipsontheeffectiveuseofbatterypower.
•Screenblankmode(forWindows7only)
Thecomputerdisplayrequiresconsiderablebatterypower.Toturnoffthepowertothedisplayandmake
Chapter2.Usingyourcomputer33