Nikon D3400 Users Manual - English for customers in Asia Oceania the Middle Ea - Page 113
The battery and charger, battery performance.
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The battery and charger: Batteries may leak or explode if improperly handled. Read and follow the warnings and cautions on pages xi-xiv of this manual. Observe the following precautions when handling batteries and chargers: • Use only batteries approved for use in this equipment. • Do not expose the battery to flame or excessive heat. • Keep the battery terminals clean. • Turn the product off before replacing the battery. • Remove the battery from the camera or charger when not in use and replace the terminal cover. These devices draw minute amounts of charge even when off and could draw the battery down to the point that it will no longer function. If the battery will not be used for some time, insert it in the camera and run it flat before removing it and storing it in a location with an ambient temperature of 15 °C to 25 °C (59 °F to 77 °F; avoid hot or extremely cold locations). Repeat this process at least once every six months. • Turning the camera on and off repeatedly when the battery is fully discharged will shorten battery life. Batteries that have been fully discharged must be charged before use. • The internal temperature of the battery may rise while the battery is in use. Attempting to charge the battery while the internal temperature is elevated will impair battery performance, and the battery may not charge or charge only partially. Wait for the battery to cool before charging. • Continuing to charge the battery after it is fully charged can impair battery performance. • A marked drop in the time a fully charged battery retains its charge when used at room temperature indicates that it requires replacement. Purchase a new EN-EL14a battery. • Charge the battery before use. When taking photographs on important occasions, ready a spare battery and keep it fully charged. Depending on your location, it may be difficult to purchase replacement batteries on short notice. Note that on cold days, the capacity of batteries tends to decrease. Be sure the battery is fully charged before taking photographs outside in cold weather. Keep a spare battery in a warm place and exchange the two as necessary. Once warmed, a cold battery may recover some of its charge. • Used batteries are a valuable resource; recycle in accord with local regulations. 89