Specifications; Operating Environment - Lenovo ThinkPad T440p User Manual

Specifications

Size
• Width: 335 mm (13.2 inches)
• Depth: 229 mm (9 inches)
• Height: 29.95 mm (1.18 inches)
Heat output
• 65 W (222 Btu/hr) maximum
• 95 W (324 Btu/hr) maximum
• 135 W (460 Btu/hr) maximum
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 status
• For the percentage of the battery power remaining, check the battery status icon in the Windows
notification area.

Operating environment

This section provides information about the operating environment of the computer.
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, its temperature must be at least 10°C (50°F).
• Relative humidity:
– Operating: 8% to 95% at wet bulb: 23℃ (73℉)
– Storage: 5% to 95% at wet bulb: 27℃ (81℉)
If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.
Attention: Keep electrical appliances such as an electric fan, radio, high-powered speakers, air conditioner,
and microwave oven away from your computer. The strong magnetic fields generated by electrical
appliances can damage the monitor and data on the hard disk drive or solid-state 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.
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Chapter 1 Product overview
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