Replacingthebattery
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Yourcomputerhasaspecialtypeofmemorythatmaintainsthedate,time,andsettingsforbuilt-infeatures,
suchasparallel-connectorassignments(configuration).Abatterykeepsthisinformationactivewhenyou
turnoffthecomputer.
Thebatterynormallyrequiresnochargingormaintenancethroughoutitslife;however,nobatterylasts
forever.Ifthebatteryfails,thedate,time,andconfigurationinformation(includingpasswords)arelost.An
errormessageisdisplayedwhenyouturnonthecomputer.
Refertothe“Lithiumcoincellbatterynotice”intheSafety,Warranty,andSetupGuideforinformation
aboutdisposingofthebattery.
Toreplacethebattery,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage111.
3.Removethedirectcoolingairbaffle.See“Removingandreinstallingthedirectcoolingairbaffle”on
page128.
4.Toaccessthebattery,youmustremovethepowersupplyassembly,theupperfrontfanassembly,
andtheuppermulti-functionbracket.See“Replacingthepowersupplyassembly”onpage143,
“Replacingthefrontfanassemblies”onpage141,and“Removingandreinstallingthemulti-function
brackets”onpage139
.
5.Locatethebattery.See“Locatingpartsonthesystemboard”onpage34.
6.Removetheoldbatteryasshown.
Figure58.Removingthebattery
7.Installthenewbatteryasshown.
Figure59.Installingthebattery
Chapter11.Installingorreplacinghardware145
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