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• 65 W (222 Btu/hr) maximum or 90 W (307 Btu/hr) maximum (depending on the model)
Power source (ac power adapter)
• Sine-wave input at 50 to 60 Hz
• Input rating of the ac power adapter: 100 to 240 V ac, 50 to 60 Hz
Battery pack
• Lithium-ion (Li-Ion) battery pack
Battery life
• For percentage of the remaining battery power, see the Power Manager battery gauge on the taskbar.
• The Power Manager program also displays a green, yellow, or red indication. A battery under warranty
with a red indication is eligible for a warranty replacement.
Operating environment
This section provides information about your computer operating environment.
Environment:
• Maximum altitude without pressurization: 3048 m (10 000 ft)
• Temperature
– At altitudes up to 2438 m (8000 ft)
– Operating: 5.0°C to 35.0°C (41°F to 95°F)
– Storage: 5.0°C to 43.0°C (41°F to 109°F)
– At altitudes above 2438 m (8000 ft)
– Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)
Note: When you charge the battery pack, its temperature must be at least 10°C (50°F).
• Relative humidity:
– Operating: 8% to 80%
– Storage: 5% to 95%
If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.
Keep electrical appliances such as an electric fan, radio, air conditioner, and microwave oven away from
your computer because the strong magnetic elds generated by these appliances can damage the monitor
and data on the hard disk drive.
Do not place any beverages on top of or beside the computer or other attached devices. If liquid is spilled on
or in the computer or an attached device, a short circuit or other damage might occur.
Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.
ThinkVantage Technologies and other software
ThinkVantage Technologies and some other software programs are preinstalled on your computer to help
you work more easily and securely.
14 User Guide