High current cable assemblies are sensitive to inputs that are easy to omit from a first inquiry. Conductor size drives current capacity, but it also affects bend radius, weight, and the space the harness needs inside the enclosure. Voltage drop is another input: a cable carrying 200A over a long run loses more voltage than a short jumper, and the acceptable loss depends on the system it feeds. Environmental exposure matters as well. A battery box on a commercial vehicle sees vibration and thermal cycling that a bench prototype does not. Thermal cycling test methods such as IEC 60068-2-44 exist because repeated hot-cold movement is a real stress on a connector-plus-cable joint, so planning for it early keeps the assembly more predictable. Batch quantity completes the picture. A single prototype can be built with hand tools and careful inspection; a production run of several thousand units needs a repeatable process, consistent stripping lengths, and a documented inspection step. That difference changes fixture time, wire cutting, and final test planning. Workmanship standards such as NASA-STD-87394 treat crimping, harness routing, and cable interconnection as defined processes rather than improvisation, the same logic a production battery pack harness follows. The more of these inputs included in the first inquiry—conductor size, run length, acceptable voltage drop, environment, and batch size—the fewer rounds a project needs before a quote.