Verifying UN 38.3 Test Summary Requirements for Lithium Battery Air Transport
Verifying UN 38.3 test summaries requires matching physical cell markings, mass, and laboratory ISO 17025 scope against mandatory section 38.3.5 fields.
Model Designation
Meaning
Specific alphanumeric identifier assigned by a manufacturer distinguishes a unique cell design and chemistry from other products within a broader technology family. The model designation acts as a key to the technical datasheet, indicating the nominal capacity, chemistry type and physical dimensions of the battery. It allows buyers to verify that they are receiving the correct product for their application and ensures that replacement parts are compatible.
This term refers only to the name used in official documentation and does not describe the physical characteristics themselves.
Product Specification
Technical details associated with a model designation provide the baseline for system engineering. When an engineer selects a specific cell, the code reveals the exact voltage range and maximum discharge current allowed. Any change to the internal chemistry or the thickness of the separator usually requires a new identifier to be issued.
This prevents the mixing of different cell types in the same battery pack which would lead to imbalances. The code often follows a standardized format that includes the diameter and height of cylindrical cells. Accurate identification is the first step in ensuring that the electrical performance matches the design requirements.
Traceability Function
Supply chain management relies on the model designation to track the movement of inventory from the factory to the end user. If a defect is found in a particular production run, the identifier helps in locating all the affected units for recall or inspection. It links the physical product to the manufacturing records and quality test results.
This level of detail is necessary for maintaining the high safety standards required in the automotive and aerospace industries.
Certification Scope
Safety approvals and regulatory filings are tied to the specific model designation of the battery. If a manufacturer wants to ship a new product by air, they must prove that the exact version identified by the code has passed the mandatory tests. Changing the name without retesting can lead to legal issues and the loss of insurance coverage.
Certification bodies use these codes to maintain a public database of approved energy storage devices.