3
BATTERY CHARGING
3-2
Battery information
D
Battery life
The approximate battery life (operating time) as
shown below is calculated under the following
assumptions:
• Power save setting: Auto (Short)
• Duty cycle: TX : RX : Standby = 1 : 1 : 8
(based on operating style)
The approximate battery life:
Battery pack
FM mode
BP-271
4�25 hours
BP-272
7�25 hours
BP-307
12 hours
L
See page 3-8 for the optional BP-273 battery
case battery life�
NOTE: BE SURE
to replace the battery pack with
a new one approximately five years after purchase,
even if it still holds a charge� The material inside the
battery cells will become weak after a period of time,
even with little use�
The estimated number of times you can charge the
pack is between 300 and 500� Even when the pack
appears to be fully charged, the operating time of the
transceiver may become short when:
• Approximately five years have passed since the
pack was manufactured�
• The pack has been repeatedly charged�
TIP:
Keep the battery terminals clean� It’s a good
idea to clean them occasionally�
D
Battery icon
The “
” battery icon is displayed when the battery
pack is attached to the transceiver�
Icon
Battery status
The battery is being charged�
The battery has sufficient capacity�
The battery is exhausted a little�
(green)
The battery is nearing exhaustion�
(red)
The battery is almost fully exhausted�
L
Immediately charge the battery pack�
Otherwise, the icon will soon start
blinking, “LOW BATTERY” will be
displayed, and the transceiver will
automatically turn OFF�
No icon
When an external DC power supply (12
V DC) is connected, the battery is not
being charged because:
• The battery is completely charged�
• “Charging (Power ON)” is set to “OFF�”
L
The battery icon for the BP-273 cannot display the
capacity of the alkaline batteries� The battery icon always
displays “
,” and it does not reflect with the true battery
capacity�
To display the correct battery status
Select the attached battery pack in the following
item� (Default: BP-271/BP-272)
([MENU] > SET > Function >
Battery Pack Select
)
To display the Battery Pack Select dialog every time you
attach the battery pack, set the following item to “ON�”
([MENU] > SET > Function >
Battery Pack Confirmation
)
