Service Tag
The service tag is a unique alphanumeric identifier that allows Dell service technicians to identify the hardware components in
your computer and access warranty information.
Battery charge and status light
The following table lists the battery charge and status light behavior of your Latitude 5531.
Table 2. Battery charge and status light behavior
Power Source
LED Behavior
System Power State
Battery Charge Level
AC Adapter
Off
S0 - S5
Fully Charged
AC Adapter
Solid White
S0 - S5
< Fully Charged
Battery
Off
S0 - S5
11-100%
Battery
Solid Amber (590+/-3 nm)
S0 - S5
< 10%
●
S0 (ON) - System is turned on.
●
S4 (Hibernate) - The system consumes the least power compared to all other sleep states. The system is almost at an OFF
state, expect for a trickle power. The context data is written to hard drive.
●
S5 (OFF) - The system is in a shutdown state.
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