User Guide

Performoperationalcharging.Ifthebatterystatusindicatororicondoesnotturnon,removethebattery

packandletitreturntoroomtemperature.Reinstallthebatterypack.Ifthechargeindicatororiconstilldoes

notturnon,replacethebatterypack.

Ifthechargeindicatorstilldoesnotturnon,replacethesystemboard.Thenreinstallthebatterypack.Ifitis

stillnotcharged,gotothenextsection.

Checkingthebatterypack

BatterychargingdoesnotstartuntilthePowerManagerBatteryGaugeshowsthatlessthan96%ofthe

totalpowerremains;underthisconditionthebatterypackcanchargeto100%ofitscapacity.Thisprotects

thebatterypackfrombeingoverchargedorfromhavingashortenedlife.

Tocheckyourbattery,moveyourcursortothePowerManagerBatteryGaugeiconintheicontrayofthe

Windowstaskbarandwaitforamoment(butdonotclick),andthepercentageofbatterypowerremaining

isdisplayed.Togetdetailedinformationaboutthebattery,double-clickthePowerManagerBattery

Gaugeicon.

Note:Ifthebatterypackbecomeshot,itmaynotbeabletocharge.Removeitfromthecomputerandleave

itatroomtemperatureforawhile.Afteritcoolsdown,reinstallandrechargeit.

Tocheckthebatterypack,dothefollowing:

1.Poweroffthecomputer.

2.Removethebatterypackandmeasurethevoltagebetweenbatteryterminals1(+)and7(-).Seethe

followinggure:

Note:ThinkVantageToolboxthroughthe"SystemHealth"orthroughDiagnostics"featureswill

proactivelydetermineifthereplacementofbatterypackisrequired.A"POOR"conditionindicates

batteryreplacementisrequiredforproperoperation.

Terminal

Voltage(Vdc)

1+0to+12.6

Ground(-)

1(+)

2(+)

6(-)

7(-)

3.Ifthevoltageislessthan+11.0Vdc,thebatterypackhasbeendischarged.

Note:Rechargingwilltakeatleast3hours,eveniftheindicatordoesnotturnon.

Ifthevoltageisstilllessthan+11.0Vdcafterrecharging,replacethebattery.

4.Ifthevoltageismorethan+11.0Vdc,measuretheresistancebetweenbatteryterminals5and7.

Theresistancemustbe4to30KΩ.Iftheresistanceisnotcorrect,replacethebatterypack.Ifthe

resistanceiscorrect,replacethesystemboard.

Checkingthebackupbattery

Dothefollowing:

1.Poweroffthecomputer,andunplugtheACadapterfromit.

2.Turnthecomputerupsidedown.

40ThinkPadEdge13²,E30,andE31HardwareMaintenanceManual