This paper offers a unique and novel approach for electric vehicle battery charging by incorporating a solar PV-integrated dc to dc boost converter. Traditional power electronic converters used in such applications often face limitations including low voltage gain, low conversion efficiency, high ripple content, and inadequate controller performance. To overcome these challenges, the study introduces the Improved A-Source Boost Converter (IASBC) along with an interval type-2 fuzzy logic controller (IT2FLC) and MPPT technique for continuous switching with optimal design. The IASBC, equipped with a coupled inductor, enhances load side performance by achieving high conversion efficiency and voltage gain while minimizing the impact of network parasitic. Additionally, the proposed controller technique effectively reduces output side dc ripple content through gain parameter optimization. The system is optimized for charging a 48 V rechargeable battery within a solar photovoltaic voltage range of 25–75 V DC. Extensive simulations using MATLAB validate the efficacy of the proposed approach. The software analysis reveals an efficiency of 90.82% in the open-loop system and 98.57% in the closed-loop system, while the hardware system achieves an efficiency of approximately 98.55%. Furthermore, a 100 W experimental design is developed and compared with the simulation results, providing validation for the technical significance of the suggested converter. This novel approach not only addresses the limitations of conventional converters but also offers improved performance in terms of efficiency, voltage gain, and ripple content. The proposed system holds promise for efficient electric vehicle battery charging and can contribute to the advancement of sustainable energy solutions.