Lenovo ThinkPad L520 (English) User Guide - Page 33

Operating environment

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- Width: 380 mm (15 inch) - Depth: 247 mm (9.7 inch) - Height: 32.0 to 36.0 mm (1.26 inch to 1.41 inch) 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 Battery life • For percentage of remaining battery power, see the Power Manager Battery Gauge in the task bar. Power Manager also displays a green, yellow and 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 degrees to 35.0 degrees Celsius (41 degrees to 95 degrees Fahrenheit) Non-operating: 5.0 degrees to 43.0 degrees Celsius (41 degrees to 109 degrees Fahrenheit) - At altitudes above 2438 m (8000 ft) Maximum temperature when operating under the unpressurized condition: 31.3 degrees Celsius (88 degrees Fahrenheit) Note: When you charge the battery pack, its temperature must be at least 10 degrees Celsius (50 degrees Fahrenheit). • Relative humidity: - Operating: 8% to 80% - Non-operating: 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, high-powered speakers, 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 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. Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage. Chapter 1. Product Overview 15

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–
Width: 380 mm (15 inch)
–
Depth: 247 mm (9.7 inch)
–
Height: 32.0 to 36.0 mm (1.26 inch to 1.41 inch)
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
Battery life
•
For percentage of remaining battery power, see the Power Manager Battery Gauge in the task bar.
Power Manager also displays a green, yellow and 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 degrees to 35.0 degrees Celsius (41 degrees to 95
degrees Fahrenheit) Non-operating: 5.0 degrees to 43.0 degrees Celsius (41 degrees to 109 degrees
Fahrenheit)
–
At altitudes above 2438 m (8000 ft) Maximum temperature when operating under the unpressurized
condition: 31.3 degrees Celsius (88 degrees Fahrenheit)
Note:
When you charge the battery pack, its temperature must be at least 10 degrees Celsius (50 degrees
Fahrenheit).
•
Relative humidity:
–
Operating: 8% to 80%
–
Non-operating: 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, high-powered speakers, 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 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.
Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.
Chapter 1
.
Product Overview
15