Verifying UN 38.3 Test Summaries for Imported Cells
Verify UN 38.3 test summaries by matching technical report fields against accredited lab databases, factory trace codes, and physical SOC transport limits.
Combination Packaging
Meaning
Transport containment systems composed of one or more protective inner packagings secured within a certified outer packaging prevent hazardous leakage during the distribution of electrochemical cells. This combination packaging uses cushioning, absorbent material, and plastic bags to protect the battery cells from shock and keep them electrically isolated. This method of packaging complies with strict international transport rules and is required for shipping high-energy lithium batteries.
It stops being the primary safety boundary only when the individual cells are extracted for pack integration. Sourcing teams specify this configuration to guarantee safe transport and avoid regulatory penalties.
Structural Design
The inner packaging holds the cells in a fixed position to prevent terminal contact and short circuits. Non-conductive dividers and flame-resistant wraps prevent a single cell failure from spreading.
Safety Testing
Before a packaging design can be certified for battery transport, it must pass a rigorous battery of physical challenges. These include drop tests from heights up to two meters, stack pressure tests, and vibration simulations that mimic the harsh conditions of air and sea transport. The outer box, often constructed of heavy-duty fiberboard or metal, must resist water absorption and puncture.
Passing these evaluations earns the packaging a specific UN code that allows legal transport of dangerous goods.
Compliance Cost
Purchasing certified packaging adds to the unit cost of cell procurement. Buying cheaper, non-certified boxes risks massive fines from transport authorities and can cause shipping companies to reject the cargo entirely.