NOVELTY - The system has battery module (1) with storage device adapted to be stored with electrical characteristic information and usage history information on cells. The battery controller has battery module communication interface circuit configured to communicate with battery module. The battery information (32) is read from storage device of battery module in response to instruction to read battery information, and transmitted from storage device control circuit of battery module, and host system communication interface for communicating with controller of host system.    USE - Battery system for use in vehicle and industrial application. Uses included but are not limited to electric vehicle, hybrid electric vehicle, trolley less electric train, electric locomotive, hybrid train, power source for construction machinery, golf cart, electric bicycle, electric motorbike, electric wheel chair, power absorption-regeneration device, power system for power leveling, stationary backup power source, power source for cellular telephone base station, redundant power source for car braking system, backup power source for fuel cell system, power storage system, emergency power supply and emergency lamp.    ADVANTAGE - The secondary battery module avoids a loss of electrical characteristic information or usage history information on the secondary battery module included in a secondary battery system even when the secondary battery system is disassembled. The battery information management device and a battery information management system are provided for smoothly and efficiently reusing the secondary battery module. Thus the lower-cost and environmental cycling battery reuse system is realized, in which a large-sized secondary battery module is utilized.    DETAILED DESCRIPTION - A battery controller communication interface circuit communicates with battery controller, and storage device control circuit reads battery information stored in storage device and transmits read battery information to the battery controller through interface circuit in response to instruction from battery controller and receives battery information transmitted from battery controller through interface circuit and write received battery information into storage device. Transmitting unit transmits storage device control circuit of battery module instruction to read battery information stored in storage device of battery module and battery information to be stored in storage device of battery module through battery module communication interface circuit. Receiving unit receives battery information through battery module communication interface circuit. The battery module and battery controller are configured to be separable. INDEPENDENT CLAIMS are included for the following:    (1) a battery information management device;    (2) a secondary battery reuse system for reusing a secondary battery module of a secondary battery system;    (3) a secondary battery recovery and sales system for recovering and selling a secondary battery module of a secondary battery system;    (4) a secondary battery reuse method of reusing a secondary battery module of a secondary battery system;    (5) a secondary battery reuse method of reusing a chargeable and dischargeable cell of a secondary battery module; and    (6) a secondary battery recovery and sales method of recovering and selling a secondary battery module of a secondary battery system.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the battery information management system.    Secondary battery module (1)    Battery information management device (3)    Terminal device (4)    Battery information management system (8)    Battery information (32)