The effect of chemical activation temperature on the performance of activated carbon electrodes based on orange peel biomass (citrus sinensis) for supercapacitor applications has been studied. Activated carbon was prepared by chemical activation using 0.5 M ZnCl2 with temperature variations of 750 °C (JR-750 sample), 800 °C (JR-800 sample), and 850 °C (JR-850 sample). Temperature treatment i…