SOONWELL DSLR NP-F970 or F550 Battery Power Supply E6 Dummy Battery Coupler for Camera 5D2 5D3 Fit for Canon EOS 5D2 5D3 60D... With the NP-F970 battery pinth, you can use two Sony NP-F970 or F550 batteries to provide power supply for your DSLR, HDMI splitter and field moniter Using the latest switching regulator modules, regulator efficiency, low power Use camera BP battery to supply power for camera, monitor and so on It has 3 voltage outputs: 5V, 7.2V (for DSLR), 12V