121Caring for the CameraTechnical Notesj The Self-timer Lamp/AF-assist Illuminator LEDThe light-emitting diode (LED; c 4, 30, 111) used in the self-timer lamp/AF-assist illuminator conforms to the followingIEC standard:k The Battery• Check the battery level when taking the camera out, and charge the battery if necessary(c 12). Do not continue charging once the battery is fully charged, as this will result inreduced battery performance. If possible, carry a fully-charged spare battery when takingpictures on important occasions.• Do not use the battery at ambient temperatures below 0 °C (32 °F) or above 40 °C(104 °F). During charging, the temperature should be in the vicinity of 5 to 35 °C (41 to95 °F). Note that the battery may become hot during use; wait for the battery to coolbefore charging. Failure to observe these precautions could damage the battery, impair itsperformance or prevent it from charging normally.• On cold days, the capacity of batteries tends to decrease. Be sure that the battery is fullycharged before heading outside to take pictures in cold weather. Keep spare batteries in awarm place and exchange as necessary. Once warmed, a cold battery may recover some ofits charge.• Dirt on the battery terminals can prevent the camera from functioning.• When the battery is not in use, remove it from the camera or battery charger and replacethe terminal cover. The camera and battery charger draw minute amounts of current evenwhen off; if left in place, the battery could be drained to the point that it no longer func-tions. Turning the camera on or off while the battery is exhausted can result in reduced bat-tery life. If the battery will not be used for an extended period, store it in a cool (15 to25 °C / 59 to 77 °F), dry place. Recharge it at least once a year and run it flat before return-ing it to storage.• Replace the battery when it no longer holds a charge. Used batteries are a valuableresource. Please recycle used batteries in accordance with local regulations.
