67• Although the battery pack’s operatingtemperature range is from 0 °C to40 °C (32 °F to 104 °F), the optimalrange is from 10 °C to 30 °C (50 °F to86 °F). At cold temperatures,performance will temporarily decline.Warm it in your pocket before use.• Replace the battery pack if the usabletime after full charge diminishessubstantially at normal temperatures.About the battery terminal coverThe battery terminal cover has a [ ]-shaped hole. This is useful when youwish to differentiate between chargedand uncharged battery packs.Back side of the battery packTerminal cover attachedCassette• Rewind tapes after use. A slack ordamaged tape may cause videoproblems and/or audio distortionsduring playback.• Return cassettes to the case andstore them upright. Rewind tapesfrom time to time if they are stored fora long time.• Do not leave the cassette in thecamcorder after use.• Do not use spliced tapes ornonstandard cassettes as they maydamage the camcorder.• Do not use tapes that have beenjammed as video heads may becomedirty.• Do not insert anything into the smallholes of the cassette, or cover themwith cellophane tape.• Handle cassettes with care. Do notdrop or subject them to severeimpact as this may damage thecassettes.• With cassettes equipped with amemory function, metal platedterminals may become dirty with use.Clean the terminals with a cottonswab after about 10 times ofremoving and reinserting thecassette. The memory function is notsupported by the camcorder.Protecting Tapes from Accidental ErasureTo protect your recordings from accidentalerasure, slide the tab on the cassette toSAVE or ERASE OFF.Charged UnchargedSAVERECSAVEREC