Lithium Battery Transport: UN 38.3 for Air Freight from China
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Transporting lithium batteries by air from China is governed by UN 38.3, which requires eight mandatory tests — altitude, thermal, vibration, shock, external short, impact/crush, overcharge, and forced discharge — before a cell or pack can fly. Airlines and freight forwarders will refuse the shipment without the UN 38.3 test summary and a matching dangerous-goods declaration. Testing at an accredited lab typically runs a few hundred to a couple thousand dollars per model and several weeks.
When you ship batteries the blocker is paperwork, not the product — a factory may have a UN 38.3 report for a different cell than the one in your pack. We confirm the test summary matches the exact cell model, that the report is current, and that the packaging and labeling meet the carrier's dangerous-goods rules.
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FAQ
What documents do airlines require to ship lithium batteries?
A UN 38.3 test summary for the exact cell or pack, a Section 38.3 compliance statement, often a safety data sheet, and a correctly completed dangerous-goods declaration with UN3480/UN3481 markings. Missing or mismatched documents get the shipment rejected at the airport.
How much does UN 38.3 testing cost and how long does it take?
Expect a few hundred to around two thousand dollars per battery model at an accredited lab, and roughly three to six weeks for the full eight-test sequence. Reusing a valid report for the identical cell avoids repeat testing.
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