Battery · Hazloc Labs

UN 38.3 Battery Shipping for OEMs: What Logistics Will Ask For

UN 38.3 is about transport safety, not CE marks. Couriers and airlines will block shipments that lack the right test summary, packing instruction, and state of charge controls.

Documents to keep ready

UN38.3 test summary for the cell/pack as shipped
Classification (UN3480 / UN3481, etc.) and packing instruction references
Safety Data Sheet where required by the forwarder
Prototype / low-production approvals when applicable
Labels and marks matching the packing instruction

Engineering habits that help logistics

Freeze pack construction before booking UN38.3 — adhesives and cell lots matter.
Design packaging that survives drop/stack expectations for the mode of transport.
Separate “installed in equipment” vs “packed with equipment” vs “batteries alone” early.
Track SoC limits for air transport in your shipping SOP.

Pitfalls

Reusing another company’s UN38.3 summary for a modified pack.
Shipping recalled or damaged lithium packs as normal cargo.
Assuming ground shipping rules match air.

FAQ

Does UN38.3 expire?

Tests relate to a design. Significant design changes typically require retesting. Keep revision control tight.

Need a scoped path? Hazloc Labs helps hardware teams with CE, EMC, RF, UL/CSA, materials, and related market-access programs — plus ATEX/IECEx and inspection studies when explosive atmospheres apply. Book a consultation.

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