The Datavideo MB-4-P is a battery mount and adapter for use with their DAC series of converters. The MB-4-P's plate slides onto the bottom of the DAC, making it completely portabable. It supports Sony, Panasonic, Canon and JVC 14.4V or 7.2V batteries.
Features: Compatible with these DAC's: DAC-60, DAC-70, DAC-8P, DAC-80, DAC-90, and DAC-9P
Sony: BP-U60/U30 (14.4V), NP-F770/970/960/950 DV, NP-QM series DV batteries (7.2V)