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37
5
BATTERY CHARGING
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Caution
D
Battery caution (Continued)
CAUTION:
Always use the battery within the specified temperature
range for the transceiver (–20˚C to +55˚C) and the battery itself
(–10˚C to +60˚C). Using the battery out of its specified temperature
range will reduce the battery’s performance and battery life. Please
note that the specified temperature range of the battery may ex-
ceed that of the transceiver. In such cases, the transceiver may not
work properly because 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 temperature
environment (above +45˚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 +45˚C (within a month)
–20˚C to +40˚C (within six months)
–20˚C to +35˚C (within a year)
BE SURE
to replace the battery pack with a new one approxi-
mately five 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 operating
time of the transceiver may become short when:
• Approximately five years have passed since the battery was man-
ufactured.
• The battery has been repeatedly charged.
Summary of Contents for IC-F51
Page 1: ...INSTRUCTION MANUAL UHF TRANSCEIVER iF61 L P0 P1 P2 P3 ...
Page 62: ...MEMO ...
Page 63: ...MEMO ...