A Precharge Relay is an essential component in the electrical architecture of an electric vehicle. Its primary function is to limit the inrush current when the high-voltage battery is first connected to the powertrain or charging system. EVs rely on high-voltage systems, often ranging from 300V to over 800V, and connecting these systems without a precharging process can cause significant electrical surges, potentially damaging expensive components. The Precharge Relay addresses this issue by regulating the flow of current during the initial stages of the system's power-up process.