Lenovo E40-70 Notebook User Manual download pdf (Page 29)

Note:Outputvoltageofpin2oftheacpoweradaptermightdifferfromtheoneyouareservicing.

3.Ifthevoltageisnotcorrect,replacetheacpoweradapter.

4.Ifthevoltageisacceptable,replacethesystemboard.

Note:Noisefromtheacpoweradapterdoesnotalwaysindicateadefect.

Checkingtheexternalbatterypackandtheoperationalcharging

Checkingtheexternalbatterypack

Thiscomputersupportsonlybatteriesspeciallydesignedforthisspeciﬁcsystemandmanufacturedby

Lenovooranauthorizedbuilder.Thesystemdoesnotsupportunauthorizedbatteriesorbatteriesdesigned

forothersystems.Ifanunauthorizedbatteryorabatterydesignedforanothersystemsisinstalled,the

systemwillnotcharge.

Attention:Lenovohasnoresponsibilityfortheperformanceorsafetyofunauthorizedbatteries,and

providesnowarrantiesforfailuresordamagearisingoutoftheiruse.

ThebatterystatusiconintheWindowsnotiﬁcationareadisplaysthepercentageofthebatterypower

remained.

Tocheckfordetailedbatterystatusinformation,dothefollowing:

•ForWindows7:OpenthePowerManagerprogramandclicktheBatterytab.

•ForWindows8andWindows8.1:OpentheLenovoSettingsprogramandclickPower.

Note:Iftheexternalbatterypackbecomeshot,itmaynotbeabletocharge.Removeitfromthecomputer

andleaveitatroomtemperatureforawhile.Afteritcoolsdown,reinstallandrechargeit.

Checkingtheoperationalcharging

Tocheckwhetherthebatterypackchargesproperlyduringoperation,dothefollowing:

1.Dischargethebatterypackuntiltheremainedbatterypowerislessthan50%.

2.Connectthecomputertoacpowertochargethebatterypack.IfthebatterystatusiconintheWindows

notiﬁcationareaindicatesthatthebatterypackisnotcharging,removethebatterypackandletit

returntoroomtemperature.

3.Reinstallthebatterypack.Ifthebatterypackisstillnotcharging,replacethebatterypack.

4.Checkthebatterystatusiconagain.Ifthesameerrorstillexists,replacethesystemboard.

Chapter3.Generalcheckout23

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Lenovo E40-70 Notebook User Manual Page 29