Lenovo ThinkPad T420 4177 Hardware Maintenance Manual page 65

Lenovo thinkpad t420 4177: supplementary guide
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Table 7. Status indicators (continued)
Indicator
10
Sleep (standby for
Windows XP) status
11
Battery status
Meaning
Green:
The computer is in sleep (standby) mode.
Blinking
The computer is entering sleep (standby) mode or hibernation mode,
green:
or is resuming normal operation.
Green:
The battery charge level is 20% or higher.
The battery charge level is between 5% and 20%.
Orange:
Fast blinking
The battery charge level is lower than 5% .
orange:
Slow blinking
The battery is being charged. When it reaches 20%, the
orange:
blinking color changes to green.
Slow blinking
The battery charge level is between 20% and 80%, and
green:
charging is continuing. When the battery reaches 80% charge,
the battery status indicator stops blinking, but the charging
may continue until the battery is 100% charged.
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.
An error occurred in the battery.
Quick blinking
orange:
The battery status
The ac power adapter is attached to the computer.
indicator blinks
three times:
The battery status
The battery pack of the computer is fully charged or detached.
indicator is off:
.
Chapter 5
Status indicators
57

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