Lenovo B480 Notebook - Manual (Page 23)

• Depth: 252 mm
• Height: 33.1 mm
Heat output
• 65 W (222 Btu/hr) or 90 W (307 Btu/hr) maximum heat output (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
• Li-Ion battery pack
Chapter 1 . Getting to know your computer 9