To provide a regeneration service system for batteries capable of inexpensively and stably supplying a regenerated battery and a new battery to a client.

An information exchange network is formed among a management corporation 12 managing the maintenance information of a battery used by the client 10, a regeneration corporation 14 manufacturing a regenerated battery by collecting a secondhand battery from the client 10, and a supply corporation 16 supplying a new battery to the client 10. Based on maintenance information reported from the management corporation 12, the regeneration corporation 14 collects the secondhand battery and delivers the regenerated battery, and the supply corporation 16 supplies a new battery, based on shortage information reported from the regeneration corporation 14.