Lenovo ThinkPad T550, User Manual

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Wireless features
• Global navigation satellite system (GNSS) receiver (available on some models)
• Bluetooth
• Wireless LAN
• Wireless WAN (available on some models)
Security features
• Security-lock slot
• Fingerprint reader (available on some models)
Specifications
This section lists the physical specifications for your computer.
Size
• Width: 380.60 mm (14.98 inches)
• Depth: 258.20 mm (10.17 inches)
• Height: 22.45 (0.88 inch) or 23.30 mm (0.92 inch)
Heat output (depending on the model)
• 45 W (154 Btu/hr) maximum
• 65 W (222 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
Operating environment
This section provides information about the operating environment of your 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 pack, 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 ℉ )
Chapter 1
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Product overview
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