S-7500C is the Canon BP type dummy battery adaptor.
Mount the dummy battery head onto Canon DV camera, and connect with pole-tap DC power source, you can prolong the camera running time or get uninterrupted power source from AC-DC adaptor.

Comparable battery

SWIT S-8945

Canon BP-945

Applicable camera

Canon XF100/105/300/305, XH-A1, XL-H1

Output voltage

Nominate DC 7.2V

Cable length

1 meter

weight

0.1kg