Electric vehicle (EV) charging infrastructure has led to the advancement of grid-tied photovoltaic (PV) battery energy systems (BES) that support bidirectional energy flow. This research presents a detailed analysis of a PV-battery-based EV charging system incorporating both Vehicle-to-Grid (V2G) and Grid-to-Vehicle (G2V) functionalities using bidirectional converters to enhance energy efficiency. In Scenario-1 (PV to SB & EV mode), under full irradiance (1000 W/m2), the PV system supplies 20.62 kW, efficiently charging both the EV battery (-13 kW) and storage battery (-6.59 kW), while the Perturb and Observe (P&O) MPPT ensures optimal power extraction. In Scenario-2 (V2G mode), when PV power is unavailable, the EV battery discharges 17.85 kW to the grid, with an additional 2.64 kW from the storage battery, supporting grid stability. In Scenario-3 (G2V mode), the grid supplies 19.83 kW to charge the EV battery (-20.6 kW) and storage battery (-0.88 kW), ensuring uninterrupted charging availability. The proposed scheme maintains a stable DC link voltage of 400V across all scenarios, demonstrating its robustness. Simulation outcomes validate the advantage of the proposed scheme in confirming efficient energy flow, optimizing renewable energy utilization, and enabling bidirectional power exchange.