144VQT3J56≥ Extremely high temperatures or lowtemperatures will shorten the life of thebattery.≥ If the battery is kept in high-temperature,high-humidity, or oily-smoky places, theterminals may rust and causemalfunctions.≥ To store the battery for a long period oftime, we recommend you charge it onceevery year and store it again after youhave completely used up the chargedcapacity.≥ Dust and other matter attached to thebattery terminals should be removed.Prepare spare batteries when going outfor recording.≥ Prepare batteries enough to last for 3 to 4times the period you are planning torecord for. Cold places such as a ski resortcan shorten recording time.If you drop the battery accidentally,check to see if the terminals aredamaged.≥ Inserting a battery with damaged terminalscan damage the unit.Do not throw an old battery into fire.≥ Heating a battery or throwing it into a firemay result in an explosion.If the operating time is very short evenafter the battery has been recharged, thebattery has worn out. Please purchase anew battery.≥ If the temperature of the battery isextremely high or extremely low, chargingmay take time or the battery may not becharged.≥ If you use the AC adaptor near a radio,radio reception may be disturbed. Keepthe AC adaptor 1 m (3.3 feet) or moreaway from the radio.≥ When using the AC adaptor, it maygenerate whirring sounds. However, this isnormal.≥ After use, be sure to disconnect the ACadaptor. (If it is left connected, a minuteamount of current is consumed.)≥ Always keep the electrodes of the ACadaptor and battery clean.About the AC adaptor