The electrochemically synthesized polypyrrole and lead-lead sulfate is examined as a potential electrodes for battery-type hybrid supercapacitors in acidic solution. The device exhibits battery-type behavior at low discharge rate, e.g. <0.5 A g(-1), and supercapacitors-type behavior at a higher discharge rate. Discharge in the specific current range of similar to 0.6-2.27 A g(-1) based on the active masses, can deliver capacity of 90-72 Ah kg(-1), energy of 58-40 Wh kg(-1) and power of 40-1350 W kg(-1), with the specific capacitance of the cell in the range of 300-250 F g(-1). The experimentally obtained values are compared with theoretical. (c) 2016 Elsevier B.V. All rights reserved.