Andoer Battery Adapter Plate Base for Sony NP-F 970 F750 F550 Battery with DC cable The battery plate's output voltage is 7.2V, consistent with the battery's voltage. Compatible with Sony NP-F970 F750 F550 batteries. A 1/4in screw hole is available on the back for mounting the plate. With a L-shaped metal mount bracket, it can be mounted to your support kits conveniently. With a fastener tape at the back, it can be bound to a tripod or head controller and so on.