IEC 60086-4:2025 Button Battery Testing Service

IEC 60086-4:2025 is a safety performance standard for primary lithium batteries published by the International Electrotechnical Commission (IEC). The following is a detailed introduction to the standard:

1、 Basic Information

Standard number: IEC 60086-4:2025

Version: Sixth Edition (2025 Edition)

Publication organization: IEC

Release date: January 29, 2025 (official release), May 21, 2025, IECEE officially incorporated this standard into the system.

Scope of application: All non rechargeable primary lithium batteries, including primary lithium batteries used in remote controls, medical equipment, military equipment, and other fields.

2、 Main purpose

Ensure that the battery can still operate safely under "normal use" and "reasonably foreseeable misuse" conditions, without causing harm to humans and the environment.

3、 Standard requirements

Material requirements: Battery materials must meet certain safety standards, including requirements for material composition, chemical properties, structure, and other aspects. At the same time, battery packaging materials must also comply with corresponding safety standards.

Manufacturing process requirements: The manufacturing process of batteries must comply with certain process requirements, including production environment, equipment, process flow, etc., to ensure the quality and safety of the batteries.

Safety label requirements: Batteries must have clear and explicit safety labels, including warning language, usage precautions, safety labels, etc., to ensure that users can use the battery correctly and avoid safety accidents.

Safety testing requirements: The battery must undergo a series of safety tests, including short circuit, over discharge, drop, overheating, compression, impact, child protective packaging, etc., to ensure that the battery can meet safety requirements during use.

Fault handling requirements: When the battery malfunctions, it must be able to cut off the power supply in a timely manner to prevent the fault from expanding. At the same time, corresponding measures must be taken to ensure the safety of users.

4、 Standard changes

Compared to the 2019 version, the main updates of IEC 60086-4:2025 include:

This version is a technical revision. Compared to the previous version, this version includes the following significant technological changes:

a) Added definitions of leakage and ventilation based on testing standards;

b) Revised release test;

c) Revised marking requirements;

d) Revised packaging test standards for children with drug resistance;

e) Change the purpose of Attachment F from "informative" to "normative";

f) Added a new attachment G and additional measures to prevent unintentional misuse of batteries for consumer replacement;

g) Integrate the contents of Table 1 (IEC 60086-4:19 19/ISH1:2020);

h) In clause 3, the terms are reordered according to their functions: basic terms, electrochemical systems, battery shape, battery size, electrical characteristics, specifications, safety aspects, failure modes;

i) In 6.4.4, the exemption of impact acceleration for lithium primary batteries is reduced from 12kg to 4482kg to reflect the threshold in IEC 62281 test T-4, where the peak acceleration is reduced to below 150gn.

5、 Scope of influence

The following companies need to pay special attention to the IEC 60086-4:2025 standard:

A lithium battery manufacturing enterprise.

Suppliers of batteries for medical, security, remote control, and military equipment.

Manufacturer of electronic consumer goods with built-in lithium batteries.

Export battery brands to markets such as Europe, America, Japan, and South Korea.

Enterprises that require UN38.3 transportation compliance or IEC standard adaptation.

6、 Implementation suggestions

For relevant enterprises, in order to comply with the requirements of IEC 60086-4:2025 standard, it is recommended to take the following measures:

Self check whether the product model is within the scope of Test M, especially for enterprises with spiral structure over discharge batteries (such as CR17345, CR15H270, etc.).

Update product identification and labeling to ensure compliance with the requirements of the new standards.

Conduct necessary safety tests on the battery to ensure compliance with the safety performance requirements of the new standards.

Strengthen quality control in the production process to ensure that the manufacturing process of batteries meets the process requirements of the new standards.

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