Selecting a manufacturer for range-extended energy storage systems requires evaluation of engineering experience, production capacity, quality management, and after-sales support. The range-extended system involves both electrical and mechanical subsystems, requiring manufacturing capabilities that span battery assembly, power electronics fabrication, and generator integration. INJET HanCang operates as a manufacturer with in-house design and production of key components, allowing for consistent quality control and shorter supply chains.
This article outlines the technical capabilities, manufacturing processes, and quality assurance measures that define a competent manufacturer in this segment, with reference to industry standards and production data.
A range-extended system manufacturer typically produces the battery pack, the power conversion system, and the control cabinet, while sourcing the generator set from specialised engine manufacturers. The extent of in-house manufacturing affects product cost, quality consistency, and delivery lead time.
INJET HanCang manufactures battery modules using automated assembly lines with cell sorting and welding processes. The power conversion system is assembled and tested in-house, including the inverter, DC-DC converter, and generator interface. The control cabinet, containing the energy management system hardware and communication interfaces, is also fabricated internally. This vertical integration allows for modifications to the system design based on customer requirements without relying on multiple external suppliers.
Manufacturing capacity is measured in megawatt-hours of annual battery output and the corresponding number of inverter units. A manufacturer with higher production volume can achieve better component pricing and shorter lead times.
INJET HanCang operates a production facility with an annual capacity that supports multiple large-scale projects simultaneously. The production line uses semi-automated assembly stations with testing points at each stage. Output data from the past production cycles indicate an average throughput time per system that allows for on-time delivery for projects with typical lead time requirements. The facility maintains buffer stock of common components to reduce the impact of supply chain fluctuations.
Quality management in range-extended system manufacturing follows ISO 9001 principles, with additional requirements for electrical safety and environmental testing.
INJET HanCang’s quality system includes incoming material inspection, in-process quality checks at each assembly stage, and final system-level testing before shipping. The test procedure includes insulation resistance measurement, polarity verification, communication loop testing, and full-power run tests using a resistive load bank. The manufacturer holds certifications that demonstrate compliance with international standards for battery systems and power conversion equipment, providing assurance for project financing and insurance purposes.
Design for manufacturability considers the ease of assembly, testing, and service access. Modular construction allows subassemblies to be built and tested separately before final integration, reducing the risk of faults at system level.
INJET HanCang uses a modular approach where the battery rack, inverter cabinet, and generator compartment are separate physical units that are connected during site installation. Each module is fully tested at the factory, including thermal cycling and vibration tests that simulate transport conditions. The modular design also simplifies replacement of failed units, as a single module can be swapped without decommissioning the entire system.
Factory acceptance testing is performed on each system before dispatch. The test protocol covers electrical performance, protection functions, and communication interfaces.
The test includes a full charge-discharge cycle at rated power to verify energy capacity and round-trip efficiency. The protection tests simulate overvoltage, undervoltage, overcurrent, and overtemperature conditions to confirm correct response of the battery management system and the inverter. The generator interface is tested by simulating a start command and verifying the synchronisation sequence. INJET HanCang provides a factory test report with each system, listing measured values and comparing them with specification limits.
The reliability of the range-extended system depends on the quality of sourced components, particularly the generator set, which is typically obtained from established engine manufacturers.
INJET HanCang maintains long-term supply agreements with component suppliers, with defined quality specifications and incoming inspection procedures. The battery cells are sourced from suppliers with documented production processes and traceability systems. The manufacturer conducts regular audits of critical suppliers to ensure continued compliance with material specifications and delivery schedules. The supply chain strategy includes alternative sourcing options for key components to maintain production continuity.
Manufacturer support includes warranty execution, spare parts availability, and field service for commissioning and maintenance.
INJET HanCang provides remote monitoring access for all systems under warranty, allowing the service team to monitor system parameters and receive alarm notifications. The service network includes trained technicians positioned in key regions to reduce travel time for on-site interventions. Spare parts for the battery system and the generator set are stocked at regional warehouses to minimise replacement lead time. The manufacturer offers extended warranty options and service contracts that include scheduled maintenance visits.
A competent range-extended energy storage system manufacturer combines in-house production capability, robust quality management, and responsive after-sales support. INJET HanCang’s manufacturing approach emphasises modular design, comprehensive testing, and supply chain reliability to deliver systems that meet the operational requirements of commercial and industrial applications.