Lenovo ThinkPad X220i (English) User Guide - Page 46
Specifications, ThinkPad X220 and X220i specifications, Operating: 5.0°C to 35.0°C 41°F to 95°F
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Wireless features • Integrated wireless LAN (on some models) • Integrated Bluetooth (on some models) • Integrated wireless WAN (on some models) • Integrated WiMAX (on some models) Security features • Fingerprint reader (on some models) Tablet features • Tablet Digitizer Pen • Touch panel (on select models) Specifications This section provides specifications for your computer. ThinkPad X220 and X220i specifications Size • Width: 305.0 mm (12 inch) • Depth: 206.5 mm (8.13 inch) • Height: 19 to 26.6 mm (0.75 inch to 1.05 inch) 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) - Non-operating: 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% - Non-operating: 5% to 95% Heat output • 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 30 User Guide