One more. Let me play Devil's advocate.
My mistake was buying terminals from a fellow ham who bought in quantity. I also made a mistake when I soldered some and used a crimp tool on others. My crimp tool did not expand the barrel, and the terminal still pushed freely into the housing. My experience in industrial wiring with 0000 lugs, down to avionics connectors apparently doesn't matter. The advantages of the connectors are: You must buy the connectors and a specific crimp tool from only one manufacturer You only need to buy one type of terminal, but two different types of housing, red and black. There is no plug/socket, but a genderless configuration that allows you to plug any wire into any wire. You can even plug + into -, unless you rely on a visual inspection to align the connectors and match colors, or have a special panel mounted connector that physically blocks it. You can even connect two radios to each other, or two batteries to each other, unless the cables are correctly marked and attention is paid when connecting. Adequate lighting, excellent color vision, and patient, clear thinking are always present in an emergency situation. You must glue a pair of connector housings together, or use a roll pin that may vibrate out and, appropriately, roll around, to seek its Murphy fulfillment. To prevent a tug from parting mated connectors, you must use a cable tie or purchase clips or clamps. The "standard" has 15, 30, and 45 Amp rated contacts. It's still a whole lot better than those blasted cigarette lighter plugs! :)
