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Taking Care of the Battery
Checking the Battery Charge Status
Your radio can indicate the battery’s charge status through:
•
the LED and sounds.
•
the fuel gauge icon on the display.
You can also check the battery charge status via the menu
entry. See
IMPRES™ Battery Annunciator
on page 129 for
more information.
LED and Sounds
When your battery is low:
•
the LED blinks red when the
PTT
button is pressed.
•
you hear a low-battery “chirp” (short, high-pitched tone).
Fuel Gauge Icon
A blinking fuel gauge icon (
) is displayed only when the
battery voltage drops to low level. In this case, replace the
battery with a fully charged one.
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APX_4000_M3.book Page 137 Friday, May 31, 2013 12:41 PM