Specifications; Operating Environment - Lenovo ThinkPad T420si User Manual
(english) user guide
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Also See for ThinkPad T420si:
- Manual do utilizador (256 pages) ,
- Manual d'utilisation (256 pages) ,
- User manual (252 pages)
Table of Contents
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• Integrated WiMAX (on some models)
Security features
• Fingerprint reader (on some models)
Specifications
Size
• Width: 343.0 mm (13.5 inch)
• Depth: 230.0 mm (9.05 inch)
• Height: 21.2 to 26.0mm (0.83 inch to 1.02 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)
–
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%
Heat output
• 65 W (222 Btu/hr) maximum, 90 W (307 Btu/hr) maximum, or 170 W (580 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.
• The 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.
.
Chapter 1
Product overview
17
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- User Guide
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Table of Contents
Troubleshooting
