Charge your Sony BPU batteries and power select Sony cameras with this Dual-Bay Battery Charger/AC Adapter for BPU Batteries from Sony . The dual-bay lithium-ion battery charger works with charging BP-U30, BP-U60, and BP-U90 batteries. It can also function as an AC adapter providing 12 VDC power via the integrated cable that connects to any Sony camera model compatible with BP-U series batteries. The unit can also provide power to your camera while charging one battery at the same time.