Nikon 25414 D2Xs User's Manual - Page 282

Technical Notes-Specifications Precautions for Use: Quick Charger • The Nikon MH-21 is for use with Nikon EN-EL4/EN-EL4a rechargeable Li-ion batteries only. Do not attempt to recharge other batteries with the MH-21. • Do not use this product with non-compatible batteries. • Remove the power cable from the power outlet when not in use. • Should you notice smoke or an unusual smell coming from the charger, unplug it, tak- ing care to avoid burns. Take the charger to a Nikon representative for inspection. Precautions for Use: Rechargeable Li-ion Batteries • After removing the battery from the camera for storage or transportation, be sure to attach the terminal cover included with the EN-EL4a. Shorting the battery could result in leakage, fire explosion, or other damage to the battery. • Do not connect the product to any device not specifically referred to in this manual. • Before using the product for the first time or after an extended period of disuse, recharge the battery with the MH-21 Quick Charger. • If the battery will not be used for some time, run the battery flat before putting it away. • When storing the battery for long periods, charge it and then run it flat again at least once a year. • Always remove the battery from the camera or battery charger when not in use. If the battery is left in place, minute amounts of current will continue to flow even when the battery is not use, and the battery may be drained to the point that it will no longer function. • When the battery is not in use, attach the terminal cover and store the battery in a dry location with an ambient temperature of 15-25 °C (59-77 °F). Do not leave the battery in hot or extremely cold places. • During recharging, the ambient temperature should be between 0-40 °C (32-104 °F) or the battery may not fully charge or may not function properly. • Do not attempt to recharge a fully-charged battery. Failure to observe this precaution will result in reduced battery performance. • You may notice that the battery is hot directly after use or recharging; this does not indicate a malfunction. • Even when fully charged, the battery will discharge more rapidly in cold conditions. It is recommended that you keep a fully-charged, spare battery on hand. • Check the camera battery level indicator regularly. If the battery requires calibration, calibrate the battery using the MH-21 Quick Charger. • A marked drop in the time a fully-charged battery retains its charge at room temperature indicates a drop in battery performance. Check battery performance indicator using the Battery Info option in the camera setup menu. When the camera shows that battery performance is at its lowest level, the battery has reached the end of its working life and needs to be replaced. Purchase a new EN-EL4a battery. • The charge state shown in the camera battery level indicator is affected by ambient temperature and other external conditions. 268