Due to the increasing cost of fossil fuels and other non-renewable resources, Environmental conditions and higher capacity accumulator's transformation method has been changing day by day. Though modern controllers are adopted in Electric vehicles, the primary source of battery which causes error and need to enhance the parameters. In this paper, an Improvement of the dynamic performance of the Battery Electric drive is presented. Here DC-DC Converter with different topologies has been compared for the performance of Electric Vehicles. Battery current ripples and converter losses which creates problem in Electric vehicles. Hence Improved SEPIC Converter is designed for the improvement of Electric vehicles. The Conventional linear controllers such Proportional Integral and Derivative (PID) which require analytical modeling system. Besides a Digital Controller FPGA is complete opposite PID which is based trial and error method, and doesn't include any mathematical analyze modeling of the system. However the FPGA is more sturdy (tough), has more strong study state response, and it is able to attain transient and steady state response as compared to PID controllers. The above approach is applied and experimented with simulation software for the performance the SEPIC (DC to DC converter) is discussed here in this research. Finally, the investigations of selected drive performance such as Battery Voltage, Current, Ultra Capacitor current and PID Controllers parameters and digital controllers Evaluation Parameters are presented here. © 2022 IEEE.