Amid the dual waves of global energy transition and smart manufacturing, energy storage battery systems have become core components of smart grids, commercial and industrial backup power supplies, home energy storage, and various industrial equipment. Unlike batteries in consumer electronics, these energy storage systems for industrial applications feature larger scales, more complex operating environments, and higher potential risks. Thus, an international standard tailored to their safety characteristics has emerged—IEC 62619 《Safety Requirements for Secondary Lithium Cells and Batteries for Industrial Use》.

This standard is not only a safety guideline for product design but also a mandatory access key to major global markets. For energy storage battery manufacturers, system integrators, and exporters, a profound understanding and compliance with IEC 62619 requirements have become an indispensable core competitiveness.

IEC 62619 Standard Analysis: Why It Is the "Safety Cornerstone" of Industrial Energy Storage

Developed by the International Electrotechnical Commission (IEC), IEC 62619 is an international safety standard specifically for secondary lithium batteries (including lithium-ion and lithium-polymer batteries) used in industrial equipment. Its core objective is to minimize risks such as fire, explosion, and electric shock when batteries are in intended use and reasonably foreseeable misuse through a series of rigorous tests and evaluations.

Core Scope of Application: Clearly Defining the "Industrial" Boundary

The standard clearly defines its scope, mainly covering the following application scenarios:

• Stationary Energy Storage Systems: Grid-side or user-side energy storage stations (ESS) supporting photovoltaic and wind power generation.

• Uninterruptible Power Supplies (UPS): Backup power for data centers and industrial equipment.

• Industrial Onboard Power Sources: Power batteries for automated guided vehicles (AGVs), industrial robots, railway, and marine transportation equipment.

• Other Industrial Applications: Energy storage batteries in medical equipment, telecommunications base stations, power tools, and other fields.

Key Distinction: It explicitly excludes batteries for consumer portable devices (e.g., mobile phones, laptops), which are covered by another widely recognized standard—IEC 62133.

Core Test Requirements of IEC 62619: Beyond Routine Rigorous Evaluation

The test items of IEC 62619 fully simulate electrical, mechanical, environmental, and functional safety challenges that may occur in industrial environments. The main test categories include:

Electrical Safety Tests

• Overcharge Test: Verify the protection capability of the Battery Management System (BMS) in case of charging out of control.

• External Short Circuit Test: Evaluate the battery's tolerance and safety response in the event of a short circuit.

• Thermal Runaway Propagation Test (for systems): A critical test for industrial energy storage systems, aiming to assess whether the system design can effectively prevent fire from spreading to the entire battery compartment when a single cell undergoes thermal runaway.

Mechanical Safety Tests

• Crush Test: Simulate the structural integrity and safety of the battery when subjected to mechanical compression.

• Drop Test: Evaluate the battery's safety when accidentally dropped during installation or maintenance.

Environmental Safety Tests

• Thermal Abuse Test: Place the battery in an extreme high-temperature environment to verify its thermal stability.

Functional Safety Assessment

Conduct detailed review and testing on the protection functions of the Battery Management System (BMS) to ensure its monitoring, early warning, and protection logic meet safety integrity requirements.

Why Must Energy Storage Batteries Obtain IEC 62619 Certification?

Obtaining IEC 62619 certification offers multiple strategic values for enterprises and products:

IEC 62619 Certification Process: From Preparation to Certification

Successfully passing certification requires a systematic and professional process:

1. Gap Analysis and Pre-Testing: Before formal sample submission, professional institutions review product design, BMS logic, and technical documents to identify potential non-conformities and implement rectifications.

2. Formal Testing: Submit samples to laboratories qualified for IEC 62619 for a full set of tests, usually based on the latest version IEC 62619:2022.

3. Document Review and Factory Inspection: Certification bodies audit detailed technical construction documents. For certain certification schemes, an initial factory inspection may be required to confirm production consistency control capabilities.

4. Certificate and Report Issuance: After passing all evaluations, the National Certification Body (NCB) issues the IEC 62619 CB Test Certificate and Report. This CB report is globally recognized and can be efficiently converted into local certifications in various countries.

5. Subsequent Supervision: After obtaining certification, regular surveillance audits or market sampling are required to ensure continuous compliance with standard requirements.

Our Professional Services: Your Full-Process Partner for Energy Storage Battery Safety Compliance

As a professional institution with years of experience in energy storage battery testing and certification, Guangdong Energy Storage Testing Technology Co., Ltd. deeply understands the technical connotation and market value of the IEC 62619 standard. We are committed to providing one-stop, efficient certification solutions for your products:

• Technical Expert Team Support: Our engineering team is not only proficient in standard provisions but also has rich experience in energy storage system projects. We can intervene in the early stage of product R&D, provide forward-looking safety design guidance, and effectively avoid common design defects.

• Efficient Project Management: We maintain close cooperation with multiple internationally renowned certification bodies (NCBs) and laboratories, enabling us to plan the optimal certification path, coordinate testing resources, significantly shorten the certification cycle, and help products launch quickly.

• One-Stop Service from CB to Global Certifications: We not only assist you in efficiently obtaining the IEC 62619 CB report but also provide certification conversion services based on this report, completing access to major global markets such as EU CE certification, Japan PSE certification, and Australia RCM certification in one stop. This "one-test-multiple-certifications" model greatly saves your time and costs.

Safety of energy storage batteries is the lifeline of the healthy development of the industry. Choosing a professional partner means transforming complex compliance challenges into trustworthy market advantages.

If you are planning IEC 62619 certification for your energy storage battery products or have any questions about global market access, please feel free to contact Guangdong Energy Storage Testing Technology Co., Ltd. Let us use our professionalism and experience to lay a solid safety foundation for your energy storage products and pave the way for compliance in global markets.