The Master Dually Charger is a compact and efficient charger for two Sony NP-FZ100 batteries. It features a built-in USB cable and can be used to charge your camera's battery or battery pack. This compact battery charger is great for when you're on the go, and need to keep your camera charged. It's small enough to fit in your pocket or bag, so you can take it wherever you gowhether for your next vacation or business trip. Your camera will always be ready to go when you are! Product Features in Detail Master Dually Charger - USB - Sony NP-FZ100Conveniently charges two batteries at once! Two batteries are better than one, but only if they are charged and ready for action. The Master Dually Charger for the Sony NP-FZ100 can charge two batteries simultaneously. It is very compact, and it offers the convenience of a built-in USB-A input cable that neatly stores in the base of the charger. Since it draws power from USB-A sources, you can use the Dually Charger with a USB AC Adapter (not included), laptop, power bank, car charger, and more (2.2A minimum current required).