Keyboard Status Lights - Dell Latitude 5420 Owner's Manual

capacity remains. Each light represents incremental degradation. If five lights appear, less than 60 percent of the charge
capacity remains, and you should consider replacing the battery.

Keyboard Status Lights

The lights located above the keyboard indicate the following:
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Turns on when the numeric keypad is enabled.
Turns on when the Caps Lock function is enabled.
Turns on when the Scroll Lock function is enabled.