Specifications: Input: AC 100V-240V 50 / 60Hz 1500mA (max) DC 12-24V 3000mA (min) Output: DC 8.4V / 12.6V / 16.8V "L" 1000mA x1, 500mA x2 "H" 1500mA x1, 800mA x2 USB Output: DC 5V 2100mA Fits the following camera types: Nikon 1V1 D600, D610, D7000, D7100, D800, D8000, D800E, D810 Fits the following battery models: Nikon ENEL15, EN-EL15 With the PATONA Dual LCD USB Charger f. Nikon ENEL15 EN-EL15 can charge two batteries quickly, simultaneously and independently. It does not matter if the two batteries have the same capacity. In addition, the charger has a USB output with the parallel third-party devices (tablet, smartphone ,?) can be charged. The integrated, microcontroller-controlled charging technology automatically detects the required voltage of the inserted battery and prevents overcharging or overheating. The charger has 2 charging modes, "L" for normal battery-saving charge and "H" for fast charging. Important information such as the state of charge, active USB port, use of the car adapter and charging mode is displayed on the LCD.