Lenovo ThinkPad R40 English - Service and Troubleshooting Guide for R40, R40e - Page 17
Specifications
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Specifications Specifications Size With a 13.3 or 14.1-inch display: v Width: 313 mm (12.3 in.) v Depth: 254 mm (10.0 in.) v Height: 38.8 mm (1.53 in.) With a 15.0-inch display: v Width: 329 mm (13.0 in.) v Depth: 267.5 mm (10.5 in.) v Height: 40.5 mm (1.59 in.) Environment v Maximum altitude without pressurization: 3048 m (10,000 ft) v Temperature - At altitudes up to 2438 m (8000 ft) - Operating with no diskette: 5° to 35°C (41° to 95°F) - Operating with a diskette: 10° to 35°C (50° to 95°F) - Not operating: 5° to 43°C (41° to 110°F) - At altitudes above 2438 m (8000 ft) - Maximum operating temperature, 31.3°C (88° F) Note: When you charge the battery pack, its temperature must be at least 10°C (50°F). v Relative humidity: - Operating with no diskette in the drive: 8% to 95% - Operating with a diskette in the drive: 8% to 80% Heat output v 72 W (246 Btu/hr) maximum Power source (ac adapter) v Sine-wave input at 50 to 60 Hz v Input rating of the ac adapter: 100-240 V ac, 50 to 60 Hz Battery pack (depending on the model) v 8 cell Lithium-ion (Li-Ion) battery pack - Nominal voltage: 14.4 V dc - Capacity: 4.0 AH Chapter 1. Overview of your new ThinkPad computer 5