This high-power isolated DC/DC converter is engineered for demanding electric vehicle and battery system applications. It efficiently steps down high-voltage DC inputs from 200 to 850V to stable, low-voltage outputs of 27.5V or 13.8V, making it ideal for charging auxiliary batteries or powering onboard systems. Available in robust power ratings from 1.5kW to 5kW, the module features reliable air cooling for consistent thermal management. Built with isolation for safety and protection, this converter offers a dependable power conversion solution. Its wide input voltage range accommodates various high-voltage battery packs commonly found in electric buses, trucks, and industrial equipment. The unit provides a compact and efficient method to integrate low-voltage circuits within a high-voltage vehicle architecture. Designed for performance, this charger module suits integration into custom EV power systems or as an upgrade for existing setups. It represents a professional-grade component for developers and technicians building or maintaining electric vehicle power networks.