![background image](http://html.mh-extra.com/html/icom/ic-a15/ic-a15_instruction-manual_612388030.webp)
CAUTION:
Always use the battery within the specified tem-
perature range for the transceiver (–20°C to +55°C) and the
battery itself (–20°C to +60°C). Using the battery out of its
specified temperature range will reduce the battery’s perfor-
mance and battery life. Please note that the specified temper-
ature range of the battery may exceed that of the transceiver.
In such cases, the transceiver may not work properly be-
cause it is out of its operating temperature range.
CAUTION:
Shorter battery life could occur if the battery is left
fully charged, completely discharged, or in an excessive tem-
perature environment (above +50°C) for an extended period
of time. If the battery must be left unused for a long time, it
must be detached from the transceiver after discharging. You
may use the battery until the remaining capacity is about half,
then keep it safely in a cool dry place with the temperature
range as below:
–20°C to +50°C (up to a month)
–20°C to +35°C (up to 3 months)
–20°C to +20°C (up to a year)
BE SURE
to replace the battery pack with a new one ap-
proximately 5 years after manufacturing, even if it still holds a
charge. The inside battery material will become weak after a
period of time, even with little use. The estimated number of
times you can charge the battery is between 300 and 500.
Even when the battery appears to be fully charged, the oper-
ating time of the transceiver may become short when:
• Approximately five years have passed since the battery was
manufactured.
• The battery has been repeatedly charged.
D
Charging caution
R
DANGER! NEVER
charge the battery pack in areas with
extremely high temperatures, such as near fires or stoves, in-
side a sun-heated vehicle, or in direct sunlight. In such en-
vironments, the safety/protection circuit in the battery will
activate, causing the battery to stop charging.
R
WARNING! NEVER
charge the transceiver during a light-
ning storm. It may result in an electric shock, cause a fire
or damage the transceiver. Always disconnect the power
adapter before a storm.
R
WARNING! NEVER
charge or leave the battery in the bat-
tery charger beyond the specified time for charging. If the
battery is not completely charged by the specified time, stop
charging and remove the battery from the battery charger.
Continuing to charge the battery beyond the specified time
limit may cause a fire, overheating, or the battery may rup-
ture.
R
WARNING! NEVER
insert the transceiver (battery at-
tached to the transceiver) into the charger if it is wet or soiled.
This could corrode the battery charger terminals or damage
the charger. The charger is not waterproof.
CAUTION: NEVER
charge the battery outside of the spec-
ified temperature range: BC-179 (0°C to +40°C). Icom rec-
ommends charging the battery at +20°C. The battery may
heat up or rupture if charged out of the specified tempera-
ture range. Additionally, battery performance or battery life
may be reduced.
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7
BATTERY PACKS AND CASE