143VQT2M75temperature as possible. (Recommendedtemperature: 15 °C to 25 °C (59 °F to77 °F), Recommended humidity: 40% to60%)≥ 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.≥ Attaching a battery with damagedterminals can damage the unit or ACadaptor.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 the charging lamp keeps flashing, makesure that the terminals of the battery or theAC adaptor are not exposed to dirt, foreignobjects or dust, then reconnect themproperly.Disconnect the AC cable from the ACoutlet when you remove dirt, foreignobjects or dust on the terminals of thebattery or the AC adaptor.If the charging lamp is still flashing, thetemperature of the battery may beextremely high or extremely low orsomething may be wrong with the batteryor AC adaptor. Contact consumer support.(l 161, 162)≥ 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