Lenovo ThinkPad Edge E420 - Power Management; Checking Battery Status; Using the Ac Power Adapter

3.ClicktheUltraNavtab.
4.SelectthecheckboxforShowUltraNavicononthesystemtray.
5.ClickOKorApply.
ForWindowsXP:
1.ClickStart,andthenclickControlPanel.
2.ClickPrintersandOtherHardware,andthenclickMouse.
3.ClicktheUltraNavtab.
4.SelectthecheckboxforShowUltraNavicononthesystemtray.
5.ClickOKorApply.
YoucannowchangethepropertiesofUltraNavbyclickingtheUltraNavicononthesystemtray.
Powermanagement
Whenyouneedtouseyourcomputerawayfromelectricaloutlets,youdependonbatterypowertokeep
yourcomputerrunning.Differentcomputercomponentsconsumepoweratdifferentrates.Themoreyou
usethepower-intensivecomponents,thefasteryouconsumebatterypower.
Domore,savemoreandspendmoretimeunpluggedwithThinkPadbatteries.Mobilityhasrevolutionized
businessbyallowingyoutotakeyourworkwhereeveryougo.WithThinkPadbatteries,youwillbeableto
worklongerwithoutbeingtiedtoanelectricaloutlet.
Checkingbatterystatus
ThePowerManagerBatteryGaugeinthetasktraydisplaysthepercentageofbatterypowerremaining.
Therateatwhichyouusebatterypowerwilldeterminehowlongyoucanusethebatteryofyourcomputer
betweencharges.Becauseeachcomputeruserhasdifferenthabitsandneeds,itisdifculttopredicthow
longabatterychargewilllast.Therearetwomainfactors:
•Howmuchenergyisstoredinthebatterywhenyoubegintowork.
•Thewayyouuseyourcomputer:howoftenyouaccesstheharddiskdrive,howbrightyoumakethe
computerdisplay.
Usingtheacpoweradapter
Thepowertorunyourcomputercancomeeitherfromthelithium-ion(Li-ion)batterypackprovidedwithit,
orfromacpowerthroughtheacpoweradapter.Whileyouuseacpower,thebatterychargesautomatically.
Theacpoweradapterthatcomeswithyourcomputerhastwobasiccomponents:
•Thetransformerpackthatconvertsacpoweradapterforusewiththecomputer.
•ThepowercordthatplugsintotheACoutletandintothetransformerpack.
Attention:Usinganimproperpowercordcouldcauseseveredamagetoyourcomputer.
Connectingtheacpoweradapter
Tousetheacpoweradapter,dothefollowing.Besuretotakethesestepsintheorderinwhichtheyare
givenhere.
1.Connecttheacpoweradaptertothepowerjackofthecomputer.
2.Connectthepowercordtothetransformerpack.
Chapter2.Usingyourcomputer35