In today's world, where the sustainable use of energy use is becoming one of the most important issues, more and more attention is being drawn to the use of renewable energy sources. In order to make the most of their potential, it’s crucial to perfect the concept of energy storage in devices such as batteries, fuel cells and supercapacitors. In this paper, the possibility of using different types of activated carbons as materials for supercapacitor electrodes was investigated. Activated carbon obtained from coconut shell CS and Norit DLC SUPER 30 were the two materials tested. For both materials, the particle size distribution was obtained using the DLS dynamic light scattering method, the thermal stability curve was obtained using thermogravimetric analysis, as well as the FTIR spectra. Electrodes were made from different materials, then two supercapacitors were assembled and tested using electrochemical analytical methods. Electrochemical impedance spectroscopy, EIS was performed in the frequency range from 10 mHz to 100 kHz and as a result Nyquist plots were obtained. Cyclic voltammetry was performed in the potential range from 0 to 2 V with a potential change rate of 20 mV/s. A 30-cycle galvanostatic charge/discharge, GCD, was also performed in a two- and three-electrode system at a constant current of 20 mA, after which EIS and cyclic voltammetry measurements were repeated to record changes in system capacitances and resistances. From Nyquist plots it was concluded that the behavior of the capacitor is not ideal, the internal resistance of CS electrodes seemed higher compared to Norit, and in both cases the internal resistance increased after 30 charging and discharging cycles. From the shape of the cyclic voltammogram, it was concluded that CS shows better capacitive characteristics based on almost constant current values before and after 30 cycles. Specific capacities were calculated from the charge/discharge curves, with a bigger drop in capacity and lower values found for Norit compared to CS. Internal resistances were also calculated based on the voltage drop and showed much higher values for CS, which can be explained by poorer contact between the active material and the current collector.