Accumulator power supply unit and method for controlling a charge of the accumulator block

An accumulator power supply unit equalizing the voltage between terminals of the respective accumulator block (1) to be a predetermined value without being affected by different characteristics of the accumulator block (1) such as electric double layer capacitor and secondary battery in series or serial-parallel connection. The accumulator power supply unit comprises plural accumulator blocks (1) in a series connection or a serial-parallel connection and plural transform charging circuits (2) connected in parallel to the respective accumulator block (1), wherein the respective accumulator block (1) is independently charged by the transform charging circuit (2) and a control method for the same.