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Lenovo Notebook Computer User Guide
indicatorlocatedinfrontofthecomputer.
Hint:Nomatterwhetherthebatteryisinstalledinthe
computerornot,italwaysperformsself‐discharge.(About
1%aday)
Ifthe batteryhasnot beenusedforalongtime, itmight haveno
power because of self‐discharge. This is the inherent feature of
lithium‐ion battery. You should use the external power source or
rechargethebattery.
Ifyoustillcannotturnonthecomputer(thebatteryindicatoralso
doesn’tflash),itmeansthebatteryisinself‐protectionstate.Charge
the battery for 2~4 hours to activate the battery. Turn on the
computeragainwhenthebatteryindicatorflashes.
Hint:Ifyoudonotplanonusingthecomputerforalong
time,removethebatterypackandstoreitseparately.
Note:Chargeanddischargethebatteryatleastonceevery
threemonthstoavoidthebatterymalfunctionsby
over‐discharge.
1.3.3Batteryinitialization
Afterusingthebatteryforalongtime,thebattery’soperatingtime
ismuchshorterthanthefirstuse.Thereasonisthatthelithium‐ion
battery memory is affected. Complete the battery initialization
processtoerasetheaffectedpartofthebatterymemory.
Thebatteryinitializationistheprocessoffully‐chargingthebattery,
fully‐dischargingthebatteryandfully‐chargingitagain.Complete
thefollowingstepstoperformthebatteryinitializationprocess:
¾ Make sure the computer has been turned off; connect the
computertoanexternalpowersourcetochargethebattery.
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¾ Turnonthecomputerwhenthebatteryisfully‐charged.Press