Lenovo ThinkPad Edge E520 (English) User Guide - Page 36
Specifications, ThinkPad Edge E420 specifications, For percentage of remaining battery power - replacement battery
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• Integrated WiMAX (on some models) Security features • Fingerprint reader (on some models) Specifications ThinkPad Edge E420 specifications Size • Width: 343.4 mm (13.52 inch) • Depth: 234 mm (9.21 inch) • Height: 29.3 to 33.1 mm (1.15 to 1.30 inch) 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 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. ThinkPad Edge E520 specifications Size • Width: 380 mm (14.96 inch) • Depth: 249 mm (9.8 inch) • Height: 30.4 to 33.6 mm (1.20 to 1.32 inch) 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 18 User Guide