This paper introduces a smart battery management system for electric vehicle (EV) charging stations that are equipped with a solar energy system. This work primary goal is to use solar energy as efficiently as possible while storing any extra energy for later use. The power to the EV charger can be fed from either solar system or battery packs. Battery packs have different state of charge (SOC) capacities and their life span depends on the both charging and discharging. Excess charging and discharging will affect the efficiency and life span of the battery. To avoid this, a continues battery performance monitoring system is needed. An IoT-based energy monitoring system is proposed in this work to regulate the charging and discharging of the battery de-pending upon SOC. This controller uses IoT cloud to gather data and evaluate solar energy parameters, battery parameters like (V, I, and SOC) for charging the EV. The IoT cloud provides the flexibility of remotely operating connected relays for charging the EV. The controller improves battery efficiency and optimum operation by avoiding overcharging or over discharging of batteries. This study delves into the design and application of a solar photovoltaic (PV).