Decision on Unit Division and Measurement Tolerances for the CCC Certification of Lithium-Ion Batteries

23. November 2023

On September 27, 2023, after internal discussion, the technical expert group CNCA TC03 announced its decision on the division of lithium-ion batteries into different CCC certification units. The corresponding implementation rule for CCC certification is CNCA-C09-01. Lithium-ion batteries generally require CCC certification. Many regulations are also defined for batteries in China regarding product testing and battery system registration. According to the CNCA-C09-01 implementation rule, lithium-ion batteries are divided into different units if they have different sizes.

To ensure the standardization of the unit division, the following points have been defined:

1. lithium-ion batteries are divided into different units according to the size, and test laboratories must perform appropriate measurements and tests according to them.

2. measurement tolerances were defined.

I.The dimensions and measurement tolerances of soft pack batteries are listed in the following table:

II. The dimensions and measurement tolerances of other battery types are listed in the following table:

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