ThinkPad S440 - Power management

Wirelessfeatures
•IntegratedwirelessLAN
•IntegratedBluetooth
•NFC(onsomemodels)
Securityfeatures
Fingerprintreader
Specifications
Thissectionliststhephysicalspecificationsforyourcomputer.
Size
•Width:333mm(13.11inches)
•Depth:225mm(8.86inches)
•Height:21mmto23mm(0.83to0.91inch)
Heatoutput
45W(154Btu/hr)maximumor65W(222Btu/hr)maximum,dependingonthemodel
Powersource(acpoweradapter)
•Sine-waveinputat50to60Hz
•Inputratingoftheacpoweradapter:100to240Vac,50to60Hz
Batterypack
Integratedlithium-ion(Li-Ion)batterypack
Batterystatus
Tocheckthebatterystatus,dothefollowing:
•ForWindows7:OpenthePowerManagerprogram.ClicktheBatterytab.Forinstructionsonhowto
starttheAccessConnections™program,see“AccessingLenovoprogramsontheWindows7operating
system”onpage13
.
•ForWindows8andWindows8.1:PresstheWindowskeytogototheStartscreen.ClickLenovo
Settings➙Power.
Operatingenvironment
Thissectionprovidesinformationaboutyourcomputeroperatingenvironment.
Environment:
•Maximumaltitudewithoutpressurization:3048m(10000ft)
•Temperature
–Ataltitudesupto2438m(8000ft)
–Operating:5.0°Cto35.0°C(41°Fto95°F)
12UserGuide