Low battery warningWhen the battery is almost empty, your radiowarns you in the following ways:! The battery indicator on the radiodisplay looks empty.! The status LED slowly flashes red.! A high-pitched beep sounds.You should recharge or replace the battery assoon as possible.When the battery is completely empty, themessage Battery is flat appears on thedisplay. The radio emits a long, low-pitchedbeep and then stops operating.Turn off the radio immediately. You willreduce the battery’s service life if you allow thebattery to fully discharge each time you use it.Charging temperatureTo achieve the best results when chargingyour battery:! Before charging begins, the batterytemperature must be close to the roomtemperature in which the battery is tobe charged.! Charging is bestperformed between 50°F(10°C) and 77°F (25°C)and starts only when thebattery pack is between 41°F (5°C) and95°F (35°C).95°F 35°C41°F 5°C