Lenovo ThinkPad T400s Hardware Maintenance Manual page 81

Table 7. Status indicators (continued)
Indicator
11
Battery status
Meaning
Green: The battery has more than 20% charge.
Orange:
The battery has between 5% and 20% charge.
Fast blinking orange:
The battery has less than 5% charge.
Note: The battery may be charging.
Slow blinking orange:
The battery is being charged. When it reaches 20%, the
blinking color changes to green.
Slow blinking green:
The battery has between 20% and 80% charge, and
charging is continuing. When the battery reaches 80%
charge, blinking stops, 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.
Quick blinking orange:
An error has been occurred in the battery.
The battery status indicator is off:
The battery pack of the computer is detached.
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Status indicators