From what I understand this is a necessary part of the kit. If you want to use the BMPCC6K or BMPCC4K for professional use, a V-mount battery is required and this cable will allow you to use it. It has worked flawlessly so far and I'm willing to bet that if not abused it will last for quite a while. Great affordable cable and I love the coil design. Even with a 1V bayonet battery, I can use it to charge my BMPCC6K all day long!
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