In this research we proposed the circuit for storing electric energy by converting mechanical energy at capacitor using
EAP Pad. We used the Smartspice program which is a circuit analysis program for checking level of electric energy. We
mainly analyzed into 4 effecting factors to electric energy, and 4 factors are firstly applied voltage, secondly the capacitor
of source part and the capacitor of capacitor part, thirdly capacitor of EAP and its change of capacitor value, and for last
an applied frequency. For addition, research for EAP generators are needed electric power to circuit at all time till now.
But different from that, this research focused on not all time.