Lenovo 23539KU manual Specifications, Operating environment

Security features

• Fingerprint reader (on some models)

Specifications

This section lists the physical specifications for your computer.

Size

•Width: 343.0 mm (13.5 inches)

•Depth: 230.0 mm (9.05 inches)

•Height: 21.2 to 26.0mm (0.83 inch to 1.02 inches)

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

Battery pack

• Lithium-ion (Li-Ion) battery pack

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 fields generated by these appliances can damage the monitor and data on the hard disk drive.

Chapter 1. Product overview 13