Simultaneously charge two batteries and a USB-powered device from a wall outlet or car lighter. This B&H Kit includes two NP-F975 L Series Batteries and a Duo LCD Charger from Watson. The Duo LCD Charger comes with L Series battery plates, which are interchangeable with any of a large variety of other Watson plates, sold separately. The charger features a large display, USB port, overcharge/overheat/short-circuit protection, and a battery charge test button. It supports 100-240VAC worldwide power input and includes a 12 VDC car lighter adapter for when you're on the road.