124BATTERY CHARGING12345678910111213141516CAUTION: Always use the battery within the specified tempera-ture range, –20˚C to +60˚C (–4˚F to +140˚F). Using the batteryout of its specified temperature range will reduce the battery’sperformance and battery life.CAUTION: Shorter battery life could occur if the battery is leftfully charged, completely discharged, or in an excessive temper-ature environment (above +50˚C; +122˚F) for an extended periodof time. If the battery must be left unused for a long time, it mustbe detached from the transceiver after discharging. You may usethe battery until the remaining capacity is about half, then keepit 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) (within three months)BE SURE to replace the battery pack with a new one approxi-mately five years after purchasing, even if it still holds a charge.The inside battery material will become weak after a period oftime, even with little use. The estimated number of charging anddischarging cycles is between 300 and 500, depending on thetype of operation. Even when the battery appears to be fullycharged, the operating time of the transceiver may become shortwhen:• Approximately five years have passed since the battery wasmanufactured.• The battery has been repeatedly charged.D Charging cautionR DANGER! NEVER charge the battery pack in areas with ex-tremely high temperatures, such as near fires or stoves, inside asun heated car, or in direct sunlight. In such environments, thesafety/protection circuit in the battery will activate, causing thebattery to stop charging.R WARNING! NEVER charge or leave the battery in the bat-tery charger beyond the specified time for charging. If the batteryis not completely charged by the specified time, stop chargingand remove the battery from the battery charger. Continuing tocharge the battery beyond the specified time limit may cause afire, overheating, or the battery may rupture.R WARNING! NEVER insert the transceiver (battery attached tothe transceiver) into the charger if it is wet or soiled. This couldcorrode the battery charger terminals or damage the charger.The charger is not waterproof.CAUTION: NEVER charge the battery outside of the speci-fied temperature range: BC-160/BC-171 (0˚C to +45˚C; +32˚Fto +113˚F) . BC-119N/BC-121N/BC-197 (+10˚C to +40˚C; +50˚Fto +104˚F). Icom recommends charging the battery at +20˚C(+68˚F). The battery may heat up or rupture if charged out of thespecified temperature range. Additionally, battery performance orbattery life may be reduced.