Lenovo B550 Notebook - Manual (Page 32)

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Lenovo B550 Hardware Maintenance Manual
Table 1. Specifications (continued)
Feature Description
Keyboard • 6-row Lenovo Keyboard
Touch pad • Yes with two buttons
Integrated
camera
• 0.3M
Battery • 53Wh/57Wh/48Wh, 6 cell Li-ion Battery or 35Wh, 4 cell Li-ion
Battery
AC adapter • 19V/90W
Pre-installed
operating
system
• Windows Vista Basic/Premium SP1