Batteries, which are used as energy storage tools, are widely used today and are of great importance. Batteries are used and developed in many different technologies. Today, batteries appear in many areas such as computers, electrical vehicles, electronic devices and aircraft. Since they are used in many different and various fields, battery preferences can be determined according to the purpose of use. In this study, the properties and usage purposes of nickel-cadmium (Nickel-Cadmium, Ni-Cad) type batteries used in aircraft are emphasized. The modeling of the Ni-Cad battery cell at the time of charge and discharge was carried out using MATLAB/Simulink. While modeling, Thevenin equivalent circuit model was used. Within the scope of this study, experimental test data were obtained from the workshop where charge and discharge tests of Ni-Cad battery cells were carried out. The graphs obtained from those experimental test data the modeling performed were compared. As a result of the comparison, it was seen that successful results were obtained close to each other. With the modeling made in this study, a faster and more reliable system was created and it was thought that manufacturers could easily access data for testing purposes.