Lenovo ThinkPad Edge E220s - Power Management; Checking Battery Status; Using the Ac Power Adapter

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:howoftenyouaccesstheharddiskdriveorthesolidstatedrive,how
brightyoumakethecomputerdisplay.
Usingtheacpoweradapter
Thepowertorunyourcomputercancomeeitherfromthelithium-ion(Li-ion)batterypackprovidedwithit,
orfromacpowerthroughtheacpoweradapter.Whileyouuseacpower,thebatterychargesautomatically.
Theacpoweradapterthatcomeswithyourcomputerhastwobasiccomponents:
1.Thetransformerpackthatconvertsacpoweradapterforusewiththecomputer.
2.ThepowercordthatplugsintotheACoutletandintothetransformerpack.
Attention:Usinganimproperpowercordcouldcauseseveredamagetoyourcomputer.
Connectingtheacpoweradapter
Tousetheacpoweradapter,dothefollowing.Besuretotakethesestepsintheorderinwhichtheyare
givenhere.
1.Connecttheacpoweradaptertothepowerjackofthecomputer.
2.Connectthepowercordtothetransformerpack.
3.Plugthepowercordintoanelectricaloutlet.
Tipsonusingtheacpoweradapter
Youcancheckthestatusofyourbatteryatanytimebylookingatthebatterymeteratthebottomofyour
display.
Notes:
•Whentheacpoweradapterisnotinuse,disconnectitfromtheelectricaloutlet.
•Donotbindthepowercordtightlyaroundtheacpowertransformerpackwhenitisconnectedtothe
transformer.
•Youcanchargethebatterywhentheacpoweradapterisconnectedtothecomputerandthebatteryis
installed.Youneedtochargeitinanyofthefollowingconditions:
–Ifthebatterystatusindicatorstartsblinking
32UserGuide