PowerSmart USB Battery Charger for NIKON EN-EL3, EN-EL3a,EN-EL3e, MH-18, MH-18a, Nikon D100, D100 SLR, D200, D300, D300s, D50, D70, D70s, D80, D90, DSLR D700 Digital Camera Voltage: 5V (Input), 8.4V (Output), 0.8A (Output Current) Condition: New, 1 year warranty! Weight: 49.20 g Please ensure the product(s) that you are going to buy fits the brand, model, part number and dimension (mentioned above) of your device. 3 Charging method: The charger come with a USB cable that let you charge the battery by plugging into a USB port. For example, you can connect the charger USB plug to the desktop, laptop computer USB socket, USB AC adapter, USB car charger to charge your battery.) The charger includes a charger base, an interchangeable charging plate, and a USB power cable.