Garmin VHF 720 Owner's Manual & Reference page 14

Keys &
Function
Displays
Weather Alert Indicator - This display gives
indication that the weather alert function has
been activated. The display will flash whenever a
weather alert tone is received.
Weather Alert Indicator
Lock Indicator - This indicator is displayed
when the Lock feature is active.
Lock Indicator
Battery Level Indicator - This battery shaped
icon displays information about battery capacity
in 25% increments. This indicator is always
active.
Battery Level Indicator
Squelch Indicator - This display appears
SQ
whenever the , squelch key is presses for
either squelch override or setting of the squelch
threshold.
Squelch Indicator
Low Battery Indicator - This indicator flashes
on and off when the battery capacity drops to
10% or below.
Low Battery Indicator