Lenovo ThinkPad Edge E520 - Power Problems

Solution:Dischargeandrechargethebatterypack.Ifyourbattery'soperatingtimeisstillshort,usea
newbatterypack.
•Problem:Thecomputerdoesnotoperatewithafullychargedbatterypack.
Solution:Thesurgeprotectorinthebatterypackmightbeactive.Turnoffthecomputerforoneminuteto
resettheprotector;thenturnonthecomputeragain.
•Problem:Thebatterypackcannotbecharged.
Solution:Youcannotchargethebatterywhenitistoohot.Ifthebatteryfeelshot,removeitfromthe
computerandallowittocooltoroomtemperature.Afteritcools,reinstallitandrechargethebattery.Ifit
stillcannotbecharged,haveitserviced.
ACpoweradapterproblems
•Problem:Theacpoweradapterisconnectedtothecomputerandtheworkingelectricaloutlet,butthe
poweradapter(powerplug)iconisnotdisplayedinthetaskbar.Alsotheacpowerindicatordoes
notlightup.
Solution:Doasfollows:
1.Makesurethattheconnectionoftheacpoweradapteriscorrect.Forconnectingtheacpower
adapter,seetheSetupInstructionsmanualincludedintheshippingcontentsofyourcomputer.
2.Iftheabovestepiscorrect,turnoffthecomputer,thendisconnecttheacpoweradapteranduninstall
themainbattery.
3.Reinstallthebatteryandreconnecttheacpoweradapter,thenturnonthecomputer.
4.Ifthepoweradaptericonstilldoesnotappearonthetaskbarandtheacpowerindicatordoesnot
lightup,havetheacpoweradapterandyourcomputerserviced.
Note:IfyourcomputerisaWindows7model,todisplaythepoweradapter(powerplug)icon,click
Showhiddeniconsinthetaskbar.
Powerproblems
Printtheseinstructionsnowandkeepitwithyourcomputerforreferencelater.
Ifyourcomputerisgettingnopoweratall,checkthefollowingitems:
1.Verifythepowerswitch.Referto“System-statusindicators”onpage12.Thepowerswitchis
illuminatedwheneverthecomputerison.
2.Checkallpowerconnections.Removeanypowerstripsandsurgeprotectorstoconnecttheacpower
adapterdirectlytotheacpoweroutlet.
3.Inspecttheacpoweradapter.Checkforanyphysicaldamage,andmakesurethatthepowercableis
rmlyattachedtotheadapterbrickandthecomputer.
4.Verifytheacpowersourceisworkingbyattachinganotherdevicetotheoutlet.
5.Removealldevicesandthentestforsystempowerwithminimaldevicesattached.
a.Disconnecttheacpoweradapterandallcablesfromthecomputer.
b.Closethecomputerdisplay,andturnthecomputerover.
c.Removethebattery.Referto“Replacingthebattery”onpage77.
d.Removethememory(SO-DIMM).Referto“Replacingmemory”onpage93.
e.RemovethePCIExpressMiniCard.Referto“InstallingandreplacingaPCIExpressMiniCardfor
wirelessLAN/WiMAXconnection”onpage90.
f.Removetheharddiskdrive.Referto“Replacingtheharddiskdrive”onpage79.
152UserGuide