REMANUFACTURING SUPPORT SERVER, BATTERY COLLECTING SUPPORT SERVER, BATTERY DATABASE MANAGEMENT SERVER, VENDOR COMPUTER, AND USER COMPUTER

According to one embodiment, a remanufacturing support server includes processor. The processor is configured to: acquire specification data representing required performance of a battery product; set an allowable range of a degradation state of a secondary battery to be used in the battery product; acquire diagnostic data indicating a diagnostic result of a degradation state of a secondary battery mounted on a vehicle, the diagnostic result of the degradation state of the secondary battery falling within the allowable range as the battery product; and provide an outside with a remanufacturing plan relating to the battery product based on the diagnostic data.