Due to the large variations in production and demand, stand-alone green energy management systems are becoming more important for power sharing and voltage regulation tasks. Traditionally used power management methods use maximum energy factor monitoring (MPPT) algorithms and depend on batteries in the event of a power surge or shortage. However, in order to maintain a constant current-constant voltage (IU) charging regime and extend the life of batteries, energy management methods must be more adaptable with regard to power curtailment. The article offers a technique for battery management of a hybrid solar photovoltaic and wind energy device for stand-alone applications. Due to the non-linear nature of battery charging, which is time-varying with a large time delay, it is challenging to obtain the optimum energy management performance using conventional control methods. The article analyses a fuzzy manipulates method for battery charging and discharging in a renewable energy production system. To extend the battery's life, fuzzy control maintains the appropriate level of charge (SOC). A fuzzy logic-based controller is suggested for use in manipulating the battery state of charge of the intended hybrid system, and its performance is validated in contrast to a conventional PI controller.