The connectors are generally available on Amazon, as is the wire.? Personally I would have fused both red and black, but that's me.? I put a 2.1mm plug on it so that I can connect a wall wort or use an adapter cable that has? a 2.1mm plug on one end and powerpole
connectors on the other end to connect 12v pwr supply or LiFePo4 battery.??