ProMaster Dual USB Charger Nikon EN-EL15

Two batteries are better than one, but only if they are charged and ready for action. The ProMaster Dually Charger can charge two batteries simultaneously, or just one if required. It is compact and convenient with a USB-A input cable that neatly stores itself in the bottom of the charger. Since it draws power from USB sources, you can use the Dually Charger with a USB AC Adapter (not included), laptop, power bank, car charger, and more.