The Swit S-8D58 43Wh Battery from SWIT is a Panasonic VW-VBD58-type battery. It is compatible with Panasonic cameras like the AG-CX8, AU-EVA1, AG-DVX200, and AJ-PX270. The S-8D58 battery features a 5.5/2.1mm DC barrel output at 7.2 VDC (nominal). Use the barrel port to power an on-camera LED light, monitor, or wireless transmitter.