The Bureau of Indian Standards (BIS), under the Ministry of Electronics and Information Technology (MeitY), has introduced updated guidelines for the verification of the rated capacity of portable sealed secondary lithium cells and batteries. These guidelines are aligned with IS 16046 (Part 2): 2018 and reference Clause 7.3.1 of IS 16047 (Part 3): 2018, which is harmonized with international standard IEC 61960-3:2017.

Background and Objective

Lithium-ion batteries are widely used in modern electronic devices such as smartphones, laptops, power banks, and electric equipment. However, several instances of misdeclaration of battery capacity have been reported, leading to consumer dissatisfaction and safety concerns. To address this issue, MeitY has mandated strict verification procedures to ensure that the declared rated capacity of lithium cells and batteries is accurate and reliable.

The primary objective of these guidelines is to protect consumer interests by ensuring transparency, accuracy, and compliance in battery performance claims.

Key Requirement: Rated Capacity Verification

As per the new directive, manufacturers must measure and verify the rated capacity of lithium cells and batteries using the prescribed test method under Clause 7.3.1 of IS 16047 (Part 3): 2018. This test evaluates discharge performance at a standard temperature of 20°C to determine whether the battery meets its declared capacity.

The measured capacity must be clearly reported in the test reports submitted for BIS certification under IS 16046 (Part 2).

Implementation for Existing Licensees

Existing BIS license holders must comply with the new requirements within specified timelines:

• Licensees with validity up to 30 April 2027 must ensure compliance by this date.

• Licensees with validity beyond this date must comply before the expiry of their license.

Manufacturers are required to submit updated test reports issued by BIS-recognized third-party laboratories. These reports must include rated capacity verification results for all lead models under the license.

Additionally, manufacturers must:

• Generate test requests through the LIMS (Laboratory Information Management System).

• Apply through the BIS online portal under the amendment or essential requirement module.

• Submit an undertaking confirming that all remaining models comply with the new standard.

Failure to comply within the stipulated time may result in suspension, cancellation of license, or removal of specific models from the approved scope.

Requirements for New Applicants

For new BIS certification applicants:

• Applications already under process may proceed without additional testing if samples have already been tested.

• However, applicants must provide an undertaking to submit rated capacity test reports before license validity ends.

• After 30 April 2027, no new license will be granted without mandatory rated capacity testing.

This ensures that all newly registered lithium batteries meet the updated compliance standards from the outset.

Changes in Scope of License

In case of modification or expansion of the license scope, the same rules applicable to new applicants will apply. This ensures uniform compliance across all product categories and updates.

Role of Testing Laboratories

Testing laboratories play a crucial role in implementing these guidelines. They are required to:

• Conduct tests as per Clause 7.3.1 standards.

• Report measured capacity accurately in the revised test report format.

• Reference previous safety test reports where applicable.

This standardized reporting enhances traceability and consistency across the certification process.

Compliance Deadline and Enforcement

The guidelines have come into immediate effect. However, full enforcement for new registrations will begin from 1 May 2027. After this date, rated capacity verification will become a mandatory requirement for all lithium battery certifications.

For existing registrations, compliance will be monitored during surveillance and renewal processes.

Importance for Manufacturers and Importers

These guidelines are particularly important for manufacturers, importers, and compliance consultants dealing with lithium-ion batteries. Adhering to these standards not only ensures regulatory compliance but also enhances product credibility in the market.

Non-compliance can lead to serious consequences, including penalties, product recalls, and loss of certification.

Conclusion

The introduction of rated capacity verification guidelines marks a significant step toward improving quality assurance in the battery industry. By enforcing accurate capacity declaration and standardized testing, the Bureau of Indian Standards aims to strengthen consumer trust and ensure fair practices in the electronics market.

Manufacturers and stakeholders must proactively align their processes with these requirements to maintain compliance and stay competitive in the evolving regulatory landscape.