APX 4000
Removing the Battery
• To remove the battery, turn the radio off. 
Lift up the latch then slide the battery down 
to remove the battery from the radio.
• Note: If your radio is preprogrammed with 
volatile-key retention, the encryption keys 
are retained for approximately 30 seconds 
after battery removal.
• Check with your dealer or system 
administrator for more information. You 
can view the status of your IMPRES 
battery.
APX 4000: Battery Care