Easily power up two batteries simultaneously! Ensure you're always prepared for action with the ProMaster Dually Charger for Nikon EN-EL14 batteries. This compact charger allows you to conveniently charge two batteries at once, maximizing efficiency. Featuring a built-in USB-A input cable that neatly stows away in the charger's base, it offers hassle-free storage and portability. Drawing power from USB-A sources, such as USB AC adapters, laptops, power banks, or car chargers (with a minimum current of 2.2A), this versatile charger provides flexible charging options wherever you go.