Accumulator devices and battery system

Current sensor for detecting the battery module circuit in which a plurality serially connected battery modules (30) comprising a battery monitoring unit (32) for monitoring the voltage and temperature of the serially connected battery, the current flowing through the battery module circuit When a battery management unit (44) for inputting monitoring data and detection data of said current sensor from the battery monitoring unit, and a plurality of assembled batteries units each containing (20), in the plurality of assembled batteries unit a barrier control unit (60) for communicating with each of the battery management unit, connected to said gateway controller and the plurality of battery management unit, based on the detection data obtained in the first time interval from the battery management unit each calculating a characteristic value of the battery or battery module, the control device (80) when there is a request from, or longer second than the first time interval Storage battery device provided with a measuring computer to send time the obtained detection data or the previous year calculated characteristic value for each distance to the control unit (90), the.