Therateatwhichyouusebatterypowerwilldeterminehowlongyoucanusethebatteryofyourcomputer
betweencharges.Becauseeachcomputeruserhasdifferenthabitsandneeds,itisdifculttopredicthow
longabatterychargewilllast.Therearetwomainfactors:
Howmuchenergyisstoredinthebatterywhenyoubegintowork.
Thewayyouuseyourcomputer:howoftenyouaccesstheharddiskdriveorsolid-statedrive;how
brightyoumakethecomputerdisplay.
Tocheckfordetailedbatterystatusinformation,dothefollowing:
ForWindows7:OpenthePowerManagerprogramandclicktheBatterytab.
ForWindows8:OpentheLenovoSupportprogramandclickBatteryHealth.OropentheLenovo
SettingsprogramandclickPower.
Usingtheacpoweradapter
Thepowertorunyourcomputercancomeeitherfromthelithium-ion(Li-ion)batterypackprovidedwithit,
orfromacpowerthroughtheacpoweradapter.
Theacpoweradapterthatcomeswithyourcomputerhastwobasiccomponents:
Thetransformerpackthatconvertsacpowerforusewiththecomputer.
Thepowercordthatplugsintotheacoutletandintothetransformerpack.
Attention:Usinganimproperpowercordcouldcauseseveredamagetoyourcomputer.
Connectingtheacpoweradapter
Tousetheacpoweradapter,dothefollowing.
Note:Ensurethatyoutakethesestepsinthegivenorder.
1.Plugthepowercor dintoanelectricaloutlet.
2.Connectthepowercordtothetransformerpack.
3.Connecttheacpoweradaptertotheacpowerconnectorofthecomputer.
Tipsonusingtheacpoweradapter
Whentheacpoweradapterisnotinuse,disconnectitfromtheelectricaloutlet.
Donotbindthepowercordtightlyaroundtheacpoweradaptertransformerpackwhenitisconnectedto
thetransformer.
Beforeyouchar gethebattery,makesurethatitstemperatureisatleast10°C(50°F).
Youcanchargethebatterywhentheacpoweradapterisconnectedtothecomputerandthebatteryis
installed.Youneedtochargeitinanyofthefollowingconditions:
Anewbatteryisinstalled.
Thepercentageofpowerremainingislow.
Thebatteryhasnotbeenusedforalongtime.
Chargingthebattery
Whenyoundthatthepercentageofpowerremainingisloworwhenthepoweralarmgoesoff,youneedto
chargeyourbatteryorreplaceitwithachargedbattery.
Chapter2.Usingyourcomputer31