About The Optional Battery Case; Dbattery Life; Dabout The Battery Replacement - Icom ID-52A Advanced Manual

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BATTERY CHARGING

About the optional battery case

The BP-273 uses three AA (LR6) size alkaline
batteries�
1� Remove the battery case top, as shown below�
2� Install three AA (LR6) size alkaline batteries�
L Install only alkaline batteries�
L BE SURE to observe the correct polarity�
3� Attach the battery case� (p� 1-2)
BP-273
Alkaline battery
Batteries cautions
• When installing batteries, confirm that they are all
the same brand, type, and capacity� Do not mix
new and old batteries together�
• DO NOT incinerate used battery cells since the
internal battery gas may cause them to rupture�
• DO NOT expose a detached battery case to
water� If the battery case gets wet, BE SURE to
wipe it dry before using it�
• DO NOT use batteries whose insulated covering
is damaged�
• Keep the battery terminals clean� It's a good idea
to clean them occasionally�
• Remove the alkaline batteries when the battery
case is not used� Otherwise, the installed alkaline
batteries will be exhausted due to the built-in step-
up converter�
TIP:
• A built-in step-up converter in the BP-273
increases the voltage to 5�5 V DC� Approximately
100 mW of output power is possible using the
case� Also, the transmit output power selection is
disabled�
• The transceiver meets IPX4 requirements
for waterproof protection when the BP-273 is
attached�
• The batteries may seem to have low capacity
when used in low temperatures, such as –10°C
(+14°F) or below� Keep the batteries warm in this
case�

DBattery 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 : Stand-by = 1 : 1 : 8
(based on operating style)
The approximate battery life:
FM mode
4�5 hours
L The battery life may differ, depending on your
operating style, or the installed alkaline batteries�

DAbout the battery replacement

When the alkaline batteries are almost exhausted,
"LOW BATTERY" is displayed, and the battery icon
starts to blink� After 10 seconds, the transceiver power
is automatically turned OFF� In that case, replace all 3
batteries with new alkaline batteries�
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�
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