19Basic OperationPreparation4 When charging is complete, remove the plug of the battery charger from the jack ofthe transceiver.Cautions Neither transmission nor reception can be performed while charging the battery pack using thesupplied battery charger. Charging may cause noise in the nearby TV or radio. Charge the battery pack with the batterycharger as far away as possible from a TV or radio. If “BATTERY NOT INSTALLED” appears on the LCD and the battery pack cannot be chargedafter lapse of 11 or more hours, stop charging the battery pack immediately. If the same messageappears again, the battery pack is presumably at the end of its service life or defective. If so, replacethe battery pack with a new one. While charging the battery pack, protect the transceiver from water. Charge the battery pack in a place where the ambient temperature is +5 °C to +35 °C (+41 °F to+95 °F). If the terminal or electrode of the battery case is dirty, this transceiver can malfunction due to poorcontact, resulting in overheating or rupture. If the terminal or electrode gets dirty, clean it using a drycloth or cotton swab.Tips• The battery charger may become hot during charging. This is not a malfunction.• If _ starts blinking, the battery pack charge is depleted. Charge it immediately.Approximate Operating Time and Remaining Charge Level IndicationApproximate time to operate the transceiver with the fully charged battery pack or threenew AA alkaline batteries is as follows:Band in UseDigital: OFFBattery packFNB-101LIBattery packFNB-102LIBatteryFBA-39Amateur Band144 MHz band Approx. 5.0 hours Approx. 8.0 hours Approx. 15.5 hours430 MHz band Approx. 4.5 hours Approx. 7.5 hours Approx. 15 hoursAM Broadcast Band Approx. 10.0 hours Approx. 16.0 hours Approx. 18.0 hoursFM Broadcast Band Approx. 8.0 hours Approx. 13.0 hours Approx. 14.5 hoursBand in UseDigital: ONBattery packFNB-101LIBattery packFNB-102LIBatteryFBA-39Amateur Band144 MHz band Approx. 4.0 hours Approx. 6.5 hours Approx. 11.0 hours430 MHz band Approx. 3.6 hours Approx. 6.0 hours Approx. 10.5 hoursTransmission 6 seconds: Reception 6 seconds (VOL Level 16): Stand By 48 seconds (SAVE1:5)Remark Approximate hours are estimated assuming that the transceiver is operated under thefollowing conditions. The operation time that this transceiver can be actually used variesdepending on use conditions, ambient temperature, etc.• When the GPS function is deactivated.• When the transceiver is repeatedly operated by high-power transmission for 6 secondsand reception for 6 seconds, and standby for 48 seconds with an amateur ham radioband selected.
