Latitude 5540 Owner's Manual

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Battery-charge status light

The following table lists the battery-charge status light of your Latitude 5540.

Table 1. Battery charge and status light behaviorBattery-charge status light
Power source LED behavior System power state Battery charge level
AC adapter Off S0 or S5 Fully charged
AC adapter Solid white S0 or S5 < Fully charged
Battery Off S0 or S5 11-100%
Battery Solid amber (590+/-3 nm) S0 or S5 < 10%
  • S0 (ON): Computer is turned on.
  • S4 (Hibernate): The computer consumes the least power in the Hibernate state than in the ON or OFF state. The computer is almost in the OFF state. The context data is written to a storage device, allowing you to resume from where you left when the computer is turned on.
  • S5 (OFF): The computer is in a shutdown state.

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