Battery Testing Standards IS 16047 Part 3 : 2018

IS 16047 (Part 3): 2018 is the definitive Indian Standard for verifying the performance claims, designation, and dimensions of secondary lithium cells and batteries. While safety standards prevent accidents, this standard ensures product quality. It provides the technical authority to validate that a battery actually delivers its rated capacity and survives the promised number of charge cycles. Compliance with this standard is critical for establishing brand trust, meeting government tender specifications (GEM), and ensuring accurate product labeling under BIS norms.

• Validates Quality: Confirms rated capacity (mAh) and cycle life endurance.
• Labeling Compliance: Defines the mandatory designation syntax (e.g., ICR/ICP) required for BIS CRS.
• Global Alignment: Technically equivalent to the international standard IEC 61960-3: 2017.

• Standard Code: IS 16047 (Part 3): 2018
• Equivalent International Standard: IEC 61960-3: 2017
• Title: Secondary Cells and Batteries Containing Alkaline or Other Non-Acid Electrolytes — Secondary Lithium Cells and Batteries for Portable Applications (Prismatic and Cylindrical).

This testing protocol applies to secondary lithium-ion and lithium-polymer cells and batteries designed for portable applications. If your product powers a handheld or movable device, it likely falls under this scope.

• Form Factors: Cylindrical Cells (e.g., 18650, 21700) and Prismatic Cells (Pouch cells).
• Typical Applications: Laptops, Tablets, Mobile Phones, Power Banks, Bluetooth Speakers, and Portable Medical Devices.

To prove the robustness of the battery, the standard mandates a series of electrical and environmental performance tests. Unlike safety testing which focuses on abuse, these tests focus on efficiency and longevity.

• Discharge Performance: Verification of rated capacity at 20°C and -20°C.
• High-Rate Discharge: Assessing performance under heavy load conditions.
• Charge (Capacity) Recovery: Ability to hold charge after prolonged storage.
• Endurance (Cycle Life): Testing the battery's lifespan over hundreds of charge/discharge cycles.
• Internal Resistance: Measurement of AC and DC impedance.
• Electrostatic Discharge (ESD): Testing the resilience of the protection circuit.

For performance reports to be accepted in Government Tenders (GEM Portal) or for OEM validation, the testing must be conducted by a laboratory holding valid accreditation.

• Requirement: The lab must be NABL Accredited specifically for IS 16047 (Part 3): 2018.
• Note: While BIS CRS recognition is mandatory for Safety (IS 16046), NABL accreditation is the primary requirement for Performance reporting.

Performance testing is time-intensive due to the nature of "Cycle Life" and "Storage" tests.

• Standard Performance Check (Capacity & Resistance): 7 – 10 Working Days.
• Full Endurance/Cycle Life Testing: 4 – 12 Weeks (Dependent on the number of cycles required to reach 60-80% capacity retention).

Accurate testing requires fresh samples that have not been subjected to prior stress.

• Cells: 15 – 20 samples (Required for cell-level performance metrics).
• Batteries (Packs): 10 – 15 samples (Required for pack-level discharge and ESD testing).
• Note: Samples should be marked clearly with the nominal voltage and rated capacity.

Pricing for IS 16047 (Part 3) is modular and depends on the depth of testing required.

• Basic Reporting: Costs are lower for simple Capacity Verification and Resistance checks (often used for quick QC).
• Comprehensive Reporting: Costs increase for Full Endurance (Cycle Life) testing due to the occupation of testing channels for weeks or months.

To initiate the testing process and ensure the final report accurately reflects your product specifications, the following documents are required:

1. Technical Datasheet: detailing nominal voltage, rated capacity, charging voltage, and cut-off voltage.
2. UN 38.3 Report: (If available) for transport safety verification.
3. ISO 9001 Certificate: Of the manufacturing unit.
4. Marking Plate Design: A drawing of the battery label showing the IS 16047 designation (e.g., 1ICR19/66).