This research work presents a new energy management framework for Fuel Cell Vehicles (FCVs), combining a Hybrid Energy Storage System (HESS) with a High-Gain Non-Isolated DC-DC Converter and a bio-inspired Walrus Optimization Algorithm for Maximum Power Point Tracking (MPPT). The proposed system addresses challenges in dynamic energy coordination, fuel cell efficiency, and transient load response by integrating the fast dynamics of supercapacitors and the sustained power of lithium-ion batteries