Apple Z0MF Laptop User Manual


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32 Chapter 2 Life with Your MacBook Air
Running Your MacBook Air on Battery Power
WhentheMagSafepoweradapterisn’tconnected,yourMacBookAirdrawspower
fromitsbuilt-inbattery.ThelengthoftimethatyoucanrunyourMacBookAirvaries,
dependingontheapplicationsyouuseandtheexternaldevicesconnectedtoyour
MacBookAir.
TurningofeaturessuchasWi-FiorBluetooth®wirelesstechnologyandreducing
screenbrightnesscanhelpconservebatterycharge.Manyofyoursystempreferences
areautomaticallysettooptimizebatterylife.
Charging the Battery
Youcandeterminewhetherthebatteryneedstobechargedbylookingatthe
indicatorlightontheMagSafeconnector.Ifthelightisglowingamber,thebattery
needstobecharged.Ifthelightisglowinggreen,thebatteryisfullycharged.
YoucanalsochecktheamountofbatterychargeleftbyviewingtheBatterystatus
icon( )inthemenubar.Thebatterychargeleveldisplayedisbasedontheamount
ofpowerleftinthebatterywiththeapplications,peripheraldevices,andsystem
settingsyouarecurrentlyusing.Toconservebatterypower,closeapplicationsand
disconnectperipheraldevicesnotinuse,andadjustyourEnergySaversettings.
Formoreinformationaboutbatteryconservationandperformancetips,goto
www.apple.com/batteries/notebooks.html.
WhenthepoweradapterthatcamewithyourMacBookAirisconnected,thebattery
rechargeswhetherthecomputerison,o,orinsleep.Thebatteryrechargesmore
quickly,however,whenthecomputerisoorinsleep.
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