As electric vehicle systems grow, so does the need for more advanced energy control tools. This paper suggests a new DC/DC power link that works both ways for electric cars with more than one battery. This makes it easier for energy to move from the batteries to the goods inside the vehicle. The suggested system makes it easier to recover, charge, and release renewable energy in both directions. By keeping an eye on voltage, temperature, and charge levels, the complex control system improves battery performance and power flow. This makes sure that each battery works well with the others, uses less power, and is more reliable and efficient. This method gives us a flexible and scalable way to make fast and efficient electric cars (EVs).