Lenovo ThinkPad Edge E420s (English) User Guide - Page 33
Specifications, Operating environment, Integrated Lithium-ion Li-Ion battery pack
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• Multi-Burner drive Wireless features • Integrated wireless LAN • Integrated Bluetooth (on some models) • Integrated wireless WAN (on some models) • Integrated WiMAX (on some models) Security features • Fingerprint reader (on some models) Specifications This section lists the physical specifications for your computer. Size • Width: 349 mm (13.74 inch) • Depth: 236 mm (9.29 inch) • Height: 21.7 to 27.8 mm (0.85 inch to 1.09 inch) Heat output • 65 W (222 Btu/hr) maximum 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 • Integrated 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. 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) Non-operating: 5.0°C to 43.0°C (41°F to 109°F) Chapter 1. Product Overview 15