Icom IC-M73 Instruction Manual page 40

9
Battery charging
• WARNING! NEVER put the battery in a microwave oven,
high-pressure container, or in an induction heating cooker.
This could cause overheating, a fire, or cause the battery
to rupture.
• CAUTION! Always use the battery within the specified
temperature range for the transceiver (–20˚C to +60˚C;
–4˚F to +140˚F) and the battery itself (–20˚C to +60˚C;
–4˚F to +140˚F). 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 exceed 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; +113˚F)
for an extended period of time. If the battery must be left
unused for a long time, it must be detached from the radio
after discharging. You may use the battery until the remain- You may use the battery until the remain-
ing capacity is about half, then keep it safely in a cool dry
place with the temperature range as below;
–20˚C to +50˚C (–4˚F to +122˚F) (within a month)
–20˚C to +35˚C (–4˚F to +95˚F)
–20˚C to +20˚C (–4˚F to +68˚F)
32
(within three months)
(within a year)
D Charging caution
• R DANGER! NEVER charge the battery pack in areas with
extremely high temperatures, such as near fires or stoves,
inside a sun-heated car, or in direct sunlight. In such
environments, the safety/protection circuit in the battery will
activate, causing the battery to stop charging.
• WARNING! DO NOT charge or leave the battery in the
battery 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 rupture.
• WARNING! NEVER insert the battery and transceiver
(battery attached 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! DO NOT charge the battery outside of the
specified temperature range: ±0˚C to +45˚C (+32˚F to
+113˚F). Icom recommends charging the battery at +20˚C
(+68˚F). The battery may heat up or rupture if charged out
of the specified temperature range. Additionally, battery
performance or battery life may be reduced.