1. What is KC Certification

KC Certification (Korea Certification) is the general term for South Korea's mandatory safety certification system, supervised and managed by the Korea Agency for Technology and Standards (KATS). The system integrated multiple original certification marks such as EK and EMI in 2009, unified into the KC mark, covering multiple categories including electrical, electronic, communication and children's toys.

All products sold in the South Korean market that fall under the management scope specified in the Electrical Appliances and Household Products Safety Management Act must complete KC certification or safety confirmation declaration before circulation, otherwise they cannot be sold within South Korea.

2. Which Battery Products Require KC Certification

According to current South Korean regulations, the following batteries and related products fall under the control scope of KC certification:

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Note: Whether a specific product falls under the control scope is subject to the latest safety management item list issued by KATS, and shall be confirmed in combination with the actual model and purpose of the product.

3. Two Main Modes of KC Certification

There are two main paths for KC certification at the operational level, applicable to different applicant subjects under different circumstances.

3.1 Direct Sample Shipping to Korea Testing Mode

This is the most common certification path, applicable to products that do not yet hold other international certification reports.

The basic process is as follows:

1. Prepare application materials: Including product technical specifications, circuit diagrams, bill of materials (BOM), safety data sheets (SDS/MSDS), manufacturer business license, etc.
2. Ship samples: Send the samples to be tested to a South Korean institution with designated testing qualification, i.e. RLOS (Registration Laboratory of Official Standard).
3. Conduct testing: Perform safety performance tests according to applicable Korean safety standards (K Standards). Battery products usually involve items such as overcharge, over-discharge, short circuit, drop, crush, thermal exposure and vibration.
4. Institutional evaluation and audit: The testing institution issues a test report and submits a certification application to KATS.
5. Obtain KC certificate: After passing the audit, a KC certificate is issued, and the applicant obtains authorization to mark the KC mark on the product.
6. Post-market supervision: The certificate holder must establish a product safety management system as required and cooperate with South Korean market supervision.

Time reference: Under normal circumstances, the cycle from sample shipping to certificate acquisition is about 6 to 12 weeks. The actual time varies depending on product complexity and testing institution scheduling.

3.2 CB Report to KC Certification Conversion Mode

There is a mutual recognition mechanism between the IECEE CB Scheme (International Electrotechnical Commission System for Conformity Assessment of Electrotechnical Products) and KC certification. Products holding valid CB test reports can apply for certification through the CB-to-KC path, reducing repeated testing to a certain extent.

The basic process is as follows: 7. Confirm applicability of CB report: Verify the version difference between the IEC standard on which the CB test report is based and the corresponding Korean K Standard, and whether all test items are covered. 8. Supplementary testing for differential items: Korean standards have special requirements for some test items (i.e. "national deviations"), and supplementary testing for differential items must be conducted at an institution with RLOS qualification. 9. Submit to Korean NB institution: Submit the CB report, CB certificate and supplementary test data to a South Korean recognized NB (National Body) institution for review. 10. NB institution review: After passing the review, the NB institution submits relevant materials to KATS. 11. Obtain KC certificate: After KATS review and approval, the KC certificate is issued.

Applicable Conditions: • The CB test report must be issued by an IECEE recognized CB Testing Laboratory (CBTL) and be within the validity period. • The standard tested in the report must be the latest or currently valid version of the corresponding IEC standard. • Some South Korea-specific additional safety requirements (national deviations) still require supplementary testing within South Korea and cannot be exempted.

Comparison Summary:

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4. Main Battery Standards Applicable to KC Certification

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Standard numbers are subject to the current version officially released by KATS, and the latest revisions shall be verified during actual application.

5. KC Mark Usage Requirements

After obtaining KC certification, the product must be marked with the KC mark in a conspicuous position. The marking requirements include: • The KC mark must be clear and durable, and must not be blurred or easily fall off. • The mark size must meet the minimum legibility requirements for products and packaging. • For batteries that are too small to be marked on the product body, marking can be done on the smallest packaging unit. • The KC certificate number usually must be marked together with the mark (requirements vary for some categories).

6. Frequently Asked Questions

Q: How long is the validity period of KC certification? A: KC certification certificates are usually valid for a long term. However, if substantial design changes occur to the product, it is necessary to re-evaluate whether a change application or re-certification is required. Some categories require annual factory supervision audits.

Q: If the same cell is used in different devices, do they need to be certified separately? A: In principle, the cell KC certificate is for the cell product itself. If the cell is integrated into other regulated products, the relevant complete product must apply for KC certification separately and cannot be replaced by the cell certificate.

Q: Can products with existing UL or CE certification be directly used in the South Korean market? A: They cannot be used directly. Neither UL nor CE has a direct mutual recognition relationship with KC. Only reports from the CB system can be used for the KC conversion path, and differential item supplementary testing is still required.

Q: Is KC certification also required for cross-border e-commerce channels? A: Yes. According to relevant South Korean regulations, all regulated products entering the South Korean market for circulation through various channels must meet KC certification requirements, including products sold through online channels.

7. Summary

KC certification is the basic compliance requirement for battery products to enter the South Korean market. Whether through direct sample testing or conversion based on existing CB reports, the core logic is to ensure that products meet the requirements of current South Korean safety standards and complete evaluation through qualified institutions. For battery manufacturers or exporters planning to enter the South Korean market, understanding the applicable conditions and operational differences of the two certification paths helps make reasonable arrangements at the compliance planning stage.

This article is compiled based on public information. If relevant standards and regulatory requirements are updated, the latest official version released by KATS shall prevail.