Remanufacturing is the process by which a product is disassembled and rebuild so as to bring the product to the quality of a new product. Remanufacturing involves the dissassembly, repair and replacement of worn out or obsolute components. It involves quality and inspection checks that mimick the initial produce manufacture.

Remanufacturing is commonly more costly than refurbishemnt, because it delivers an end-product of a higher standard. For example, electric vehicle lithium-ion batteries could be remanufactured, if their state-of-health and original design allowed for easy disassembly to enable access to specific components (e.g. individual cells) and their use in the production of new battery packs with reduced environmental footprint.