Dell P55F Manual page 2

Specifications
Front
Front
Left
Right
1 Power and battery-status light
Indicates the power and battery status of the computer.
Solid white—Power adapter is connected to the
Base
computer and the battery is being charged.
Solid yellow—Battery charge is low or critical.
Off—Power adapter is connected to the computer
and battery is fully charged or power adapter is not
connected to the computer and the battery has
sufficient charge.
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