Helpful Tips
English
128
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 121 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.
APX_4000_M3.book Page 128 Thursday, March 13, 2014 10:59 AM
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