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Note: If the computer is operating on battery power, the battery status indicator does not work while the
computer is turned off or is in sleep (standby) mode or hibernation mode.
• Quick blinking orange: An error occurred in the battery.
• The battery status indicator blinks three times: The ac power adapter is attached to the computer.
• The battery status indicator is off: The battery is fully charged or the battery is detached.
Locating important product information
This section provides information to help you locate your machine type and model label, FCC ID and IC
Certication label, and Windows Certicate of Authenticity.
Machine type and model label
The machine type and model label identies your computer. If you contact Lenovo for help, the machine
type and model number will help support technicians to identify your computer and provide the highest
level of service.
You can nd the machine type and model of your computer in the label as shown below:
ThinkPad X220 and X220i
Chapter 1. Product Overview 23