Safely power your Sony Alpha a9 II, a9, a7R IV, a7R III, a7 III, a6600 camera, or other devices that take an NP-FZ100 battery with a D-Tap power source with this power regulated SafeTap Connector Cable with NP-FZ100 Type Dummy Battery from IndiPRO Tools. At 28" long, the cable has plenty of length to place your battery on a rig, and the power regulation supports input voltage from 10 to 28 VDC, outputting a consistent 7.9 VDC. The SafeTap protects your camera from a variety of faults such as reverse polarity, providing peace of mind.