Dell Latitude 5420 Owner's Manual page 241

Wake on LAN Allows you to enable or
disable the feature that
powers on the
computer from the Off
state when triggered
by a LAN signal.
Default Setting:
Disabled
ExpressCharge Allows you to enable or
disable the
ExpressCharge feature.
The options are:
Default Setting:
Standard
Charger Allows you to enable or
Behavior disable the battery
charger. The options
are;
Default Setting:
Enabled
POST Behavior
Standard
ExpressCharge
Disabled
Enabled