User guide

7.Reinstalltheexternalbatterypack.
8.Connecttheacpoweradapterandallcables.
ReplacingtheRTCbattery
Beforeyoustart,printtheseinstructions.
DANGER
IftheRTCbatteryisincorrectlyreplaced,thereisdangerofanexplosion.TheRTCbatterycontains
asmallamountofharmfulsubstances.Toavoidpossibleinjury:
•ReplaceonlywithabatteryofthetyperecommendedbyLenovo.
•Keepthebatterypackawayfromre.
•Donotexposeittoexcessiveheat.
•Donotexposeittowaterorrain.
•Donotshort-circuitit.
•Donotdrop,crush,puncture,orsubjecttostrongforces.Batteryabuseormishandlingcan
causethebatterytooverheat,whichcancausegassesorameto“vent”fromthebattery
packorRTCbattery.
ToreplacetheRTCbattery,dothefollowing:
1.Disablethebuilt-inbattery.See“Disablingthebuilt-inbattery”onpage67.
2.Closethecomputerdisplay,andturnthecomputerover.
3.Removetheexternalbatterypack.See“Replacingtheexternalbatterypack”onpage68.
4.Removethebasecoverassembly.See“Replacingthebasecoverassembly”onpage71.
5.Detachtheconnector1,andthenremovetheRTCbattery2.
Chapter6.Replacingdevices87