BIS Implements IS 16270:2023 for Solar PV Batteries

The Bureau of Indian Standards (BIS) has released updated implementation guidelines for IS 16270:2023, a crucial standard covering secondary cells and batteries for solar photovoltaic (PV) applications. This revised version, issued under the Ministry of New and Renewable Energy’s Solar Systems, Devices and Components Goods Order, 2025, replaces IS 16270:2014 and comes into effect immediately.

What’s New in IS 16270:2023?

The updated standard introduces significant changes to align with modern battery technologies and evolving industry demands:

• Maximum Charge Current Set to 10 A (Section 4.3.3 a): Defines critical performance parameters for battery safety and efficiency.

• Inclusion of Lithium Battery Technologies: Tables 1 and 2 now include lithium-based and other electrochemical batteries.

• Specific Requirements for Lithium Cells & Batteries (Section 7.2): Addresses performance, safety, and compliance for lithium technologies.

• New Long Duration Capacity (C120): Added in Section 8.1 to support extended energy storage applications.

• Rated Capacity Mandate (Section 8.1.1): Ensures consistency in battery performance claims and testing.

Implementation Guidelines for Stakeholders

1. For Existing Licensees:

• Mandatory Compliance: Must switch to IS 16270:2023 by the Solar Goods Order implementation date.

• Updated Test Reports: Submit complete test reports from BIS-recognized labs for all lead-acid models previously tested under IS 16270:2014.

• Declaration of Compliance: Provide a signed undertaking affirming application of new requirements to all models under the current license.

• Non-Compliance Risk: Failure to comply may result in license cancellation or model deletions.

2. For New Applicants:

• Immediate Implementation: All new applications will be processed under IS 16270:2023.

• Transitional Period: Applications based on IS 16270:2014 will still be accepted until 27 July 2025, with a mandatory declaration of intent to shift to the new standard.

• After 27 July 2025: No applications under the old version will be accepted.

3. For Scope Change Requests:

Same Rules Apply: Requests to change scope using the older IS 16270:2014 standard will be entertained only until 27 July 2025.

Post-Deadline Compliance: After that date, all scope modifications must comply with IS 16270:2023.

Why the IS 16270:2023 Update is Important

The revision of IS 16270 strengthens India’s commitment to sustainable and advanced solar energy solutions by supporting:

• Safer and more reliable solar battery storage systems

• Adoption of lithium and advanced battery technologies

• Improved performance standards in line with global best practices

• Growth of the Make in India initiative and renewable energy sector

What You Need to Do Now

• Existing Licensees: Review your current models and submit updated test reports and declarations to ensure continued compliance.

• New Applicants & Scope Modifiers: Align with IS 16270:2023 before the 27 July 2025 deadline to avoid application rejections.

• Consult Experts: Reach out to BIS or professional certification consultants for guidance on documentation, testing, and approval procedures.

Stay Compliant, Stay Ahead

Adopting the revised IS 16270:2023 ensures your solar battery products meet modern safety and performance benchmarks, giving your business a competitive edge in the fast-growing renewable energy market.

For detailed information and expert assistance, contact the Bureau of Indian Standards (BIS) or consult a BIS compliance advisor today.

For more details please reach us at cs@absoluteveritas.com