Interesting info in the updated manual:
Some customers have been creating custom made power devices as a means to power their Blackmagic Pocket Cinema Camera 4K. If you are creating your own power solution with a dummy battery, caution needs to be taken to ensure that you are not supplying too much voltage to your camera, as this can cause permanent damage. The voltage requirements of the Pocket Cinema Camera 4K are as follows:
The battery input connection is rated from 6.2V to 10V max.
The DC input is rated from 10.8V to 20V max.
The camera requires 16W when in standby and is not charging the battery.
The camera requires 30W when charging the LP-E6 type battery.
When powering your camera with a custom made power source, we recommend removing the LP-E6 type battery.
The camera requires 22W when recording to external media with an active lens, full screen brightness, full tally brightness, high frame rates and is not charging the battery.
Yes, I am one of the few men on earth who do RTFMs