NOVELTY - The device has a high output density type battery i.e. electro-conductive polymer type battery (1) and a high capacitance density type lithium-ion secondary battery (2) equipped with a connection circuit. An electric power supply to an electric drive and an electric heat apparatus is provided by the high output density type battery such that charge of the high output density type battery is made by using the high capacitance density type lithium-ion secondary battery when a charge amount (SOC) of the high output density type battery is lower than a predetermined value.    USE - Electric drive and power supply device for electric heat machines for electrically driving various powered equipments e.g. drive motor, such as grinder and drill, and electric heat apparatus in a vehicle e.g. motor vehicle and electric vehicle. Uses include but are not limited to powered equipments such as ventilating fan, air blower, electric fan, submersible pump, pumping pump, refrigerator, freezer, vacuum cleaner, winch and winding machine onboard, and electric heat apparatus such as electric heater, rice cooker, water-heating pot, dryer and iron.    ADVANTAGE - The device provides the electric power supply to the electric drive and the electric heat apparatus by the high output density type battery such that the charge of the high output density type battery can be made by using the high capacitance density type lithium-ion secondary battery when the charge amount of the high output density type battery is lower than the predetermined value, so that high output and high cycling characteristics of the device can be attained with high capacitance of the electro-conductive polymer type battery, thus prolonging battery life and improving performance of the electro-conductive polymer type battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of an electric drive and power supply device for electric heat machines.'(Drawing includes non-English language text)'    Electro-conductive polymer type battery (1)    High capacitance density type lithium-ion secondary battery (2)    Controller (5)    Power controller (6)    Inverter (7)