Lenovo ThinkPad Edge E531 - Manual (Page 31)

• ac power connector
Optical drive
• Multi-Burner drive
Wireless features
• Integrated wireless LAN
• Integrated wireless WAN (on some models)
• Integrated Bluetooth (on some models)
Security features
• Fingerprint reader (on some models)
Specifications
This section lists the physical specifications for your computer.
Size
• For E431 models:
– Width: 344 mm (13.54 inches)
– Depth: 239 mm (9.41 inches)
– Height: 26.3 mm (1.04 inches)
• For E531 models:
– Width: 377 mm (14.84 inches)
– Depth: 250 mm (9.84 inches)
– Height: 26.6 mm (1.05 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 the percentage of the remaining battery power, check the battery status icon in the Windows
notification area.
Operating environment
This section provides information about your computer operating environment.
Environment:
Chapter 1 . Product overview 15