Battery cells, modules, and packs go into nearly every electronic and mobility product, from smartphones and power tools to e-bikes and ESS, and shipping volumes are growing fast. Lithium batteries are also classified as dangerous goods (Class 9) under both the IMDG Code (ocean) and IATA DGR (air), so under-preparing them is a common cause of booking rejections, clearance delays, and fines. Here's what gets missed most often.
1. Get your UN38.3 test report first
Every lithium battery must pass testing under Part III, Section 38.3 of the UN Manual of Tests and Criteria, and a Test Summary proving this is the baseline requirement for shipment. If the manufacturer or brand hasn't already secured this report, the booking itself will stall.
2. Watt-hours (Wh) determine the classification
- Cells/packs at 100Wh or below: can often ship under relatively relaxed conditions.
- Above 100Wh: requires specialized DG packaging, labeling, and shipping documentation.
- Whether the battery is packed with or installed in equipment also changes the UN number (UN3480, UN3481, etc.) and the procedure.
3. Packaging and labeling must follow the specialized standard
UN-spec battery packaging, Class 9 labels, handling labels, and a battery declaration all need to match the actual shipment. A mismatch between paperwork and physical packaging can get cargo rejected at the airline or carrier stage.
4. Prepare the MSDS alongside your shipping documents
The MSDS, Dangerous Goods Declaration (DGD), commercial invoice, and packing list need to line up as one consistent set for customs and shipping to move in parallel without friction.
How Capra helps
Capra Logistics provides dangerous goods transport that complies with both IMDG Code and IATA DGR, with document review handled directly by our licensed customs broker CEO. From verifying your UN38.3 report to reviewing packaging and labeling through to customs clearance, it's handled under one roof.