Battery knowledge · Vehicle and transport standards
GB/T 38661
China’s technical specification for battery management systems in electric vehicles: requirements, test methods and inspection rules for the BMS of lithium-ion and nickel–metal hydride traction batteries, in force since October 2020. It gives Chinese vehicle makers and BMS suppliers a shared basis for specifying and testing the control electronics.
Example
Vehicle and transport standards: an example situation
Shipping tests and vehicle battery approval tests address different uses; passing one does not automatically satisfy another.
Read GB/T 38661 alongside Battery management system in this context. The electronics and software that keep a battery inside its safe window: measuring every cell voltage and many temperatures, estimating SOC and SOH, balancing cells, computing current limits, controlling the contactors and reporting over the vehicle network.
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References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- UN Manual of Tests and Criteria, Revision 8
United Nations Economic Commission for Europe · 2023
Topic background · Dangerous-goods classification tests; subsection 38.3 concerns battery transport testing.
- Manual of Tests and Criteria, Revision 8, Amendment 1
United Nations Economic Commission for Europe · 2025
Topic background · Amendments to Revision 8, including changes to battery testing in subsection 38.3.