Lenovo ThinkPad Edge E525 - Manual (Page 36)

Specifications
This section lists the physical specifications for your computer.
Size
• For ThinkPad Edge E425 models:
– Width: 343.4 mm (13.52 inches)
– Depth: 235 mm (9.25 inches)
– Height: 28.7 to 36.4 mm (1.13 to 1.43 inches)
• For ThinkPad Edge E525 models:
– Width: 380.3 mm (14.97 inches)
– Depth: 248.75 mm (9.79 inches)
– Height: 30.6 to 38.3 mm (1.20 to 1.50 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
Battery life
• For percentage of the remaining battery power, see the Power Manager battery gauge on the task bar.
• The Power Manager program also displays a green, yellow, or 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°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:
18 User Guide