BIS Announces Changes to the Guidelines for Solar Battery
The Bureau of Indian Standards (BIS) has issued Amendment No. 1 to IS 16270:2023 for Secondary Cells and Batteries used in Solar Photovoltaic (PV) Applications. These changes will come into effect from December 8, 2025. Below is a summary of the key changes and the actions required: S. No. Page
The Bureau of Indian Standards (BIS) has issued Amendment No. 1 to IS 16270:2023 for Secondary Cells and Batteries used in Solar Photovoltaic (PV) Applications. These changes will come into effect from December 8, 2025.
Below is a summary of the key changes and the actions required:
| S. No. | Page & Clause No. | Change | Action Required |
| 1 | Page 1, Clause 1 | The scope of the standard has been revised. It now applies to all types of secondary cells and batteries used in solar PV off-grid applications. | No action required |
| 2 | Page 7, Clause 8.4.3.2, Para 2 | Typographical correction only. | No action required |
| 3 | Page 8, Clause 8.4.4, Point b | New provision for lithium batteries: Discharge current must be 0.2 It. End voltages for all battery types must be as defined by the manufacturer. | Action required for licensees having lithium batteries in their licence scope. |
| 4 | Page 9, Table 6 | Clarified that tests in Table 6 apply to batteries. | Action required for licensees having secondary cells in their licence scope. |
The guidelines for the implementation of the amendment are as follows:
For Existing Licensees:
- The existing licensees shall ensure conformance to Amendment No. 1 IS 16270: 2023 by 8 December 2025.
- Licencees must issue a new test report(s) for all lead models by third-party labs.
- Licences must provide an undertaking stating that the requirements of IS 16270: 2023 have been implemented in other existing series model(s) which are in the scope of the licence.
For New Applicants:
- Existing Applications where a sample has been submitted in the Laboratory/Test Report and has been issued by the Laboratory, may be processed without Amendment.
- Applications that are recorded henceforth till December 8, 2025, may be processed with or without amendment. Processing of Applications without amendment shall be permitted only up to December 8, 2025. For such cases, the applicant shall give a declaration that they will implement the amendment by December 8, 2025.
- After December 8, 2025, all new licenses require full compliance with the amendment.
For License Scope Changes
- Same rules as new applicants.
- Only applications submitted before the compliance date or December 8, 2025 (whichever is earlier) can proceed without the amendment.
For more information, you can access the official notification issued by the ministry: Guidelines for Amendment No. 1 to IS 16270:2023
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