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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
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, the ambient 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, an air
conditioner, and a microwave oven away from your computer. The strong magnetic fields generated by
electrical appliances can damage the motor and data on the storage device.
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.
Lenovo programs
Your computer comes with Lenovo programs to help you work easily and securely.
Note:
The available programs are subject to change without notice.
To learn more about the programs and other computing solutions offered by Lenovo, go to:
http://www.lenovo.com/support
Accessing Lenovo programs
To access Lenovo programs on your computer, do the following:
1. Click the Start button to open the Start menu. Locate a program by the program name.
2. If the program is not displayed on the Start menu, click
All programs
(Windows 7) or
All apps
(Windows
10) to display all programs.
3. If you still do not find the program in the program list, search for the program in the search box.
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ThinkPad P50 User Guide
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