Methodology / worked examples
RigCurrent Check guide
RigCurrent Check is a declared-spec worksheet. It intentionally has no model catalog: camera accessories change quickly, and a nominal voltage or connector name alone cannot establish compatibility.
Capture the source label
Enter the source output voltage, maximum current at that voltage, and a connector label copied from its documentation. If the source has several output rails, calculate each rail separately.
source power = source voltage x source maximum current
A 12 V, 10 A source has a nominal 120 W power budget before any reserve.
Declare every device
List each device rail separately with its required voltage, current, connector, and quantity. A camera, monitor, transmitter, and lens motor may not share a rail even when their labels look similar.
device power = required voltage x current x quantity
A 12 V monitor drawing 1.5 A contributes 18 W.
Treat matches as review signals
The tool checks voltage within your chosen comparison window and compares connector text. A possible match still needs a pinout, polarity, cable, negotiation, and manual review before a live shoot.
recommended budget = total device power x (1 + headroom / 100)
A 42 W declared rig with 20% headroom suggests 50.4 W of source capacity.
Limits and assumptions
- No camera, battery, cable, connector, or protocol catalog is used. You must supply current documentation.
- A text connector match does not prove pinout, polarity, physical fit, cable gauge, USB Power Delivery negotiation, or safe operation.
- Devices at another voltage need a documented converter and a separate converter efficiency and rating check.