Compliance & Certification
UN38.3 Battery Testing: What It Covers and Why It’s Required
Any product shipping with a lithium battery needs UN38.3 documentation for air and sea freight — here’s what the test actually validates.
Published 2026-02-27 · Compliance & Certification
What UN38.3 Tests For
The UN38.3 test protocol validates that a lithium battery can withstand altitude simulation, thermal cycling, vibration, shock, and short-circuit conditions without posing a transport safety hazard.
Why It Blocks Shipments Without It
Freight carriers and customs authorities require UN38.3 test summary documentation before accepting lithium battery-containing cargo — a missing certificate is one of the most common causes of shipment delays for wearables, trackers and other battery-powered electronics.
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