2-Pin JST XH Relimate Connector (RMC), Male-Female Pair with Wire

A polarized connector like this JST XH-style relimate pair solves a problem bare wires can't: it lets two sections of a circuit be plugged together and unplugged repeatedly without needing to resolder a connection each time, while the polarized housing shape makes it physically impossible to plug in backwards. Already attached to a length of wire on both the male and female halves, it drops straight into a battery connection, a sensor cable, or any point in a build where a project needs to be disassembled or serviced without cutting wires. Its 2-pin count covers simple power or single-signal-plus-ground connections.