Kastar LCD Dual Smart Fast Charger for Nikon EN-EL18, EN-EL18a, ENEL18, ENEL18a, MH-26, MH-26a, MH26 and Nikon D4, D4S, D5 Digital SLR Camera, Nikon MB-D12, D800, D800E Battery Grip Kastar Dual Fast Charger, 110-240V Worldwide Input Voltage, wide range compatibility, it can charge for batteries with 6.8V - 16.8V of any capacity. Intelligent contral: Control MCU can automatically identify the voltage of the battery, going intelligent charge when being charging, and prevent overcharge. Intelligent Dual Fast charger LCD displays charging status, battery capacity, it can charge two batteries at the same time, change different plate, suitable for most of digital batteries. Charging type is CC/CV with well reliability and high efficiency, with the function of pre-charging and li-ion battery 0V activation which can effectively extend battery life. All Items 100% Compatible with Original Cameras and Chargers. All Items Include 30-day Money Back and 3-YEAR Manufacturer Warranty.