As demand for outdoor activities and emergency backup power grows rapidly, portable energy storage power supplies—reliable independent energy solutions—have demonstrated enormous potential in global markets. However, countries are imposing increasingly strict safety regulations and market access requirements for such products. A sound certification strategy has become a key factor for successful product export. This article comprehensively summarizes the certification requirements for portable energy storage power supplies in major global markets, providing a systematic reference guide for manufacturers.

I. Certification Requirements for the North American Market

The North American market, particularly the United States, has the most comprehensive and strict certification requirements for portable energy storage power supplies.

1. Safety Certification (UL Standards)

Safety requirements for portable energy storage power supplies in the U.S. market are mainly based on UL standards. E-commerce platforms like Amazon mandate suppliers to provide UL test reports.

• UL 2743: Applicable to portable backup power products, and is a mandatory standard for large energy storage power devices to enter Amazon. This standard covers portable power supplies with lead-acid or lithium-ion batteries (for indoor or outdoor use) and includes safety evaluation of components such as inverters and car charger adapters.
• UL 1973: More suitable for fixed energy storage scenarios, such as photovoltaic power plants, wind power plants, and household energy storage.
• UL 2056: Note that according to UL 2743, products within the scope of UL 2056 are excluded from UL 2743.

2. Electromagnetic Compatibility (EMC) Certification (FCC)

FCC certification is mandatory by the U.S. Federal Communications Commission. The applicable scope is determined based on product specifications and functions:

• FCC PART 15 C/E/F: Testing for intentionally radiating devices.
• FCC PART 18: Testing for industrial, scientific, and medical (ISM) equipment.

3. Energy Efficiency Certification

• DOE Certification: Portable energy storage power supplies must meet the U.S. Department of Energy (DOE) requirements for battery chargers and complete registration on the DOE Certification Management System (CCMS).
• CEC Certification: To enter the California market, products must obtain certification from the California Energy Commission (CEC) and register on the CEC MAEDBS system.

4. Chemical and Environmental Requirements

• TSCA: According to U.S. Environmental Protection Agency (EPA) requirements, products must pass testing for five Persistent, Bioaccumulative, and Toxic (PBT) substances under TSCA.
• CA65: Products sold in California must also comply with the requirements of California Proposition 65.

II. Certification Requirements for the European Market

Certification requirements for portable energy storage power supplies in the European market mainly revolve around the CE mark, covering multiple directives.

1. CE Certification

The CE mark is a mandatory pass for products to enter the European Economic Area (EEA), covering the following directives:

• Electromagnetic Compatibility (EMC) Directive: Ensures products do not generate excessive electromagnetic interference and can resist external interference.
• Low Voltage Directive (LVD): Ensures electrical safety of products within specified voltage ranges.
• RoHS Directive: Restricts the use of certain hazardous substances in electrical and electronic equipment.

2. CB Scheme

The CB Scheme is a global mutual recognition system established by the IEC System of Conformity Assessment Schemes for Electrotechnical Equipment and Components (IECEE). It follows the concept of "one test, globally recognized," helping manufacturers quickly convert certifications for multiple countries. Core applicable IEC standards for portable energy storage power supplies include:

• IEC 62619: Safety requirements for secondary lithium-ion cells and batteries for industrial use (especially suitable for energy storage systems).
• IEC 62133-2: Safety requirements for portable sealed secondary lithium-ion cells and batteries.
• IEC 62368-1: Safety requirements for audio/video, information, and communication technology equipment.
• IEC 62040-1: Safety requirements for uninterruptible power supply (UPS) systems.

According to the 2025 CB certification new rules, for complex products covering multiple product categories and standards (e.g., an energy storage system applicable to both IEC 62368-1 and IEC 62040-1), the new rules allow integrating tests into a single CB certificate (provided all tests are completed), simplifying management.

III. Battery Transportation Certification Requirements

UN38.3 Certification

Regardless of the target market, UN38.3 certification is mandatory for lithium battery transportation (especially air transport). This certification ensures the safety of lithium battery air transport and is formulated in accordance with relevant provisions of the International Air Transport Association (IATA) Dangerous Goods Regulations (DGR).

UN38.3 Test Items:

• T.1 Altitude simulation test
• T.2 Thermal test
• T.3 Vibration test
• T.4 Shock test
• T.5 External short circuit test
• T.6 Impact test
• T.7 Overcharge test
• T.8 Forced discharge test

Qualification Criteria:

No disintegration or fire during the test, and no toxic, flammable, or corrosive substances leakage.

IV. Certification Requirements for Other Key Markets

1. China

• CQC Certification: Voluntary certification for portable energy storage power supplies.
• Technical Specification for Portable AC/DC Energy Storage Power Supplies (T/GDC 185-2022): A group standard that sets evaluation requirements for products in terms of structure, performance, safety protection functions, safety, noise, environmental adaptability, and EMC.
• Note: For energy storage power supplies weighing ≤18kg, manufacturers need to assess whether CCC certification is required.

2. Japan (PSE)

Has strict certification requirements for lithium batteries; the round PSE mark is mandatory.

3. South Korea (KC)

Mandatory certification for batteries and electrical products.

4. India (BIS)

Mandatory registration requirements for battery products.

V. Certification Process and Strategic Recommendations

1. General Certification Process

Although specific requirements vary by certification, the basic process is similar:

• Phase 1: Preparation: Confirm product standards and prepare technical documents.

• Phase 2: Sample Testing: Send samples to an accredited laboratory for comprehensive testing.

• Phase 3: Review and Certification: Review test reports and issue certificates.

• Typical cycle for CB certification: 4–8 weeks.

• Typical cycle for UN38.3 certification testing: Approximately 15 working days.

2. Efficient Certification Strategies

• Make Full Use of the CB Scheme: CB certification enables quick conversion to multi-country certifications, significantly saving costs and time.
• Understand Market-Specific Differences in Advance: If the target market is clear (e.g., China, the U.S.), understand the "national differences" requirements in advance to complete relevant tests simultaneously.
• Ensure Consistency Between Samples and Documents: Samples submitted for testing must be consistent with mass-produced products. All technical documents must be accurate and complete.
• Monitor Certificate and Standard Updates: Although CB certificates have no fixed validity period, their validity depends on no changes to product design, standards, or key components. When the applicable IEC standards are updated, enterprises must complete product compliance evaluation within the transition period (usually 1–2 years).

VI. Our Service Advantages

As a third-party testing institution with multiple authoritative qualifications (CNAS, CMA, CBTL, UL), we have significant advantages in portable energy storage power supply certification:

1. One-Stop Global Certification Solution

We provide end-to-end services from testing to certification, covering access requirements for portable energy storage power supplies in major global markets, helping enterprises efficiently obtain international market access qualifications.

2. Professional Technical Team and Qualifications

Our engineers are well-versed in the technical characteristics of portable energy storage power supplies and certification requirements across countries. They provide accurate pre-test evaluations and problem-solving solutions. We hold CB Testing Laboratory (CBTL) qualification, and our CB test reports and certificates are recognized in over 50 countries and regions worldwide.

3. Efficient Project Management and Timeliness Guarantee

We offer efficient and organized test process management to ensure projects are completed on schedule. With rich experience, we can anticipate and avoid potential risks during certification, improving pass rates.

Global certification for portable energy storage power supplies is a complex but crucial process. Faced with diverse regulations and requirements across markets, choosing an experienced certification partner is essential. A sound certification strategy not only ensures compliant product launch but also serves as an effective way to enhance product competitiveness and gain market trust.

If you have any questions about portable energy storage power supply certification or need related services, please feel free to contact Guangdong Energy Storage Testing Technology Co., Ltd.! Our professional team will provide you with detailed technical consulting and personalized certification solutions to safeguard your products’ smooth entry into the global market.