Battery is a storage device that is used to store the surplus energy after consumption. This stored energy is further used whenever the generation by the generating units become less than the load demand. As renewable energy sources like solar, wind all are uncertain so for these types of uncertain resources we use Battery as s storage device. The battery life is dependent upon the amount of time it is charged and discharged per day [17]. In our work we have used Hoppecke 6 OPzS 300 storage batteries. The nominal voltage of these batteries is 2 V. It has a Capacity of 0.712 kWh per unit and a maximum capacity of 356 Ah. The maximum charge and discharge currents both of these modules are 60 A. We have considered 3 such batteries in a string making a total voltage of 6 V. The throughput considered was 1,007.90 kWh. We have considered 1, 5, 10 and 15 no. of batteries for the system. Some relevant data regarding Battery used is provided in Table 6such as different types of costs, lifetime etc. Fig.6 shows the cost curve that shows the relationship between the Quantity of battery and its Cost.