The objective of this article is to present an approach for simulating and analyzing the battery pack in the Matlab/Simulink environment. The proposed approach investigates the expected performance of the vehicle with a given battery pack and powertrain configuration. For this purpose, an equivalent circuit model of a commercially available cell was used in the simulation. Additionally, track data from previous projects was employed, consisting of speed logs from Formula SAE competition test tracks, including the battery pack’s behavior in those same competitions. Based on these results, data processing was performed to estimate the expected behavior of a battery pack, considering weight, size, power, capacity, and other constraints. Since the goal is to observe the battery pack’s performance in the various Formula SAE events, past competition data was used to estimate the current car’s behavior. Therefore, the main contribution of this work is the presentation of a proper simulation procedure for sizing the battery pack in Formula SAE vehicles, aiming to predict range, estimate performance, and optimize the vehicle’s performance in different competition events.