Remanufacturing is a circular-economy process where a used product is returned, disassembled, inspected, repaired or rebuilt, and then tested so it can be put back into service with restored performance and reliability—often comparable to a new unit. In EV charging, remanufacturing can apply to full chargers, subassemblies (e.g., power supplies, control boards, connector assemblies), or serviceable modules, reducing waste and lowering lifecycle impacts.
What Is Remanufacturing?
Remanufacturing goes beyond simple repair. A typical remanufacturing workflow includes:
– Collecting returned units (end-of-life, warranty returns, refurb stock)
– Disassembly into components and modules
– Cleaning and inspection (visual, electrical, functional)
– Replacing worn or failed parts with new or certified parts
– Updating firmware and configuration to current approved versions
– Reassembly using defined work instructions and torque specs
– Full functional and safety testing (often like a Factory Acceptance Test (FAT))
– Documentation and traceability (serial numbers, test results, replaced parts)
The remanufactured product is then reintroduced into the market or reused internally as certified service stock.
Why Remanufacturing Matters in EV Charging
EV chargers include valuable materials (aluminum, copper, electronics) and components that can often be recovered if the product is designed for serviceability. Remanufacturing supports:
– Lower environmental impact compared to producing a new unit
– Reduced material and component costs (especially during supply constraints)
– Faster availability of replacement units for service operations
– Stronger sustainability credentials for tenders and ESG reporting
– Extended product life and improved asset value for operators
For public networks, remanufacturing can also reduce downtime by enabling “swap and repair” logistics.
How Remanufacturing Works for EV Chargers
Common remanufacturing scopes include:
– Whole-unit remanufacture: return the charger, rebuild it, and redeploy
– Module remanufacture: restore high-value modules (power supplies, communication modules, HMI assemblies)
– Component harvesting: recover housings, mounting hardware, cable glands, and non-wear parts for reuse
Typical steps in a charger context:
– Diagnose failure mode (field logs, fault codes, physical inspection)
– Separate safety-critical parts (contactors, protection devices) for replacement policy
– Replace wear components (connectors, seals, fans, relays)
– Rework electronics where feasible (board-level repair vs board replacement)
– Recalibrate metering where required (especially for MID metering)
– Validate performance (load tests, insulation tests, communication tests)
– Re-label and update documentation (remanufacture date, revision, traceability)
Design Features That Enable Remanufacturing
Remanufacturing is easiest when the product is designed for it:
– Modular architecture (replaceable subassemblies)
– Standard fasteners instead of permanent adhesives
– Clear material labeling and cable routing
– Accessible service points and diagnostic ports
– Robust connectors and strain relief to minimize damage
– Firmware update and secure provisioning processes that support redeployment
Typical Use Cases
– Warranty returns where repair plus full test is cheaper than scrapping
– Fleet and workplace sites with predictable hardware rotations
– Public networks using swap logistics for rapid uptime recovery
– Upgrades where older units can be rebuilt and redeployed to lower-demand sites
– Rental or leasing models that require asset life extension
Key Benefits
– Reduced waste and improved recyclability outcomes (reuse before recycle)
– Lower lifecycle cost and improved total cost of ownership
– Shorter lead times for replacement units
– Better resilience to component shortages
– Supports circular procurement and sustainability scoring in tenders
Limitations to Consider
– Requires reverse logistics, triage capability, and quality-controlled processes
– Some failures are not economical to remanufacture (severe corrosion, enclosure damage)
– Regulatory constraints can apply (metering, safety certifications, traceability)
– Performance consistency depends on rigorous testing and standardized work instructions
– Remanufacturing capacity must scale with installed base and return rates
Related Glossary Terms
Circular Economy
End-of-life (EoL)
Repairability
Refurbishment
Waste Electrical and Electronic Equipment (WEEE)
Factory Acceptance Test (FAT)
Predictive Maintenance
Recyclability Rate
Product Carbon Footprint (PCF)