Battery accumulator charging with pizoelectric takes considerab le long time so that an energy harvester is needed b y using in this study LTC 3588 circuit. However, b y using the energy harvester, the pizoelectric cannot b e used to charge 12 volt b attery, thus a b oost converter is needed. The output vol tage is too small to increase b y using the b oost converter so that the output from the energy converter is used to charge four AA b atteries. After the voltage of the four AA b atteries as much as 4.7 volt is increased b y using the b oost converter, the b atteries can b e used to charge accumulator b attery 12 volt. To charge the b attery to accumulator, scheduling algorithm planted in microcontroller arduino is needed. By using the scheduling algorithm with fuzzy logic in the arduino microcontroller, the microcon troller is ab le to control schedule of accumulatro b attery charging.