Held at Origin: Undeclared Lithium Batteries Inside Electronics
A consignment stopped at origin because batteries inside the product were never declared, and what it takes to classify, repack and re-tender it compliantly.
Representative scenario, not a specific client engagement. This page describes how a shipment of this kind is genuinely handled — the constraints, the approach, and where it commonly goes wrong. It does not name or describe a real Transeasy customer. Our two documented project moves are the Mexico container move and the India overweight cargo delivery.
The situation
The products that cause this rarely look like battery shipments. A handheld instrument with an internal rechargeable pack, a controller with a coin cell backing up its clock, a retail box holding a spare battery alongside the device: the commercial invoice says electronic device, the booking is made as general cargo, and nobody involved believes they are tendering dangerous goods. The batteries are real all the same.
The stop usually comes at the airline's acceptance check or at screening, and it is the system working rather than a penalty. The consequence is still expensive. The consignment misses its booked flight, sits at origin, and cannot simply be rebooked, because the packaging, marking and documentation all have to be corrected first. Where a declaration has already been signed stating no dangerous goods, the exposure moves beyond delay into regulatory territory.
What made it difficult
- Lithium cells and batteries are dangerous goods for air transport under the IATA Dangerous Goods Regulations, and the duty to declare them rests with the shipper regardless of who packed the goods.
- Which packing instruction applies depends on chemistry, watt-hour rating or lithium content, and whether cells are standalone, packed with equipment or contained in equipment, so there is no single generic answer.
- A UN 38.3 test summary must be available from the cell and battery manufacturer, and without it no compliant air movement is possible at all.
- Many carriers operate embargoes stricter than the regulatory minimum, particularly on standalone cells, so an arrangement that satisfies the regulations may still be refused by a given airline.
How it is approached
The first step is to establish what is physically in the carton, taken from the manufacturer's technical file rather than the sales description. That means chemistry, whether lithium ion or lithium metal, watt-hour rating per cell and per battery, net lithium content where applicable, the number of cells per package, and the relationship between cells and equipment. Those facts, and only those facts, determine the UN number and the packing instruction that applies.
With classification settled, the documentation set is assembled. That includes the UN 38.3 test summary, which manufacturers and distributors have been required to make available since the start of 2020, a safety data sheet where the carrier or consignee requires one, and written confirmation that cells are protected against short circuit and that equipment is protected against accidental activation in transit.
The cargo is then repacked, marked and labelled to the applicable instruction, by personnel holding current dangerous goods training for the function they perform. Depending on the instruction that can mean a state of charge not exceeding thirty per cent, the lithium battery mark showing the UN number, a Class 9 hazard label, and a shipper's declaration. Getting this partly right produces the same outcome as getting it wrong.
Only then is the shipment rebooked, with a carrier and routing confirmed as accepting that UN number and quantity, and with a rebuilt timeline given honestly to the consignee. The lasting fix sits upstream: a battery question set inside the booking intake, so the forwarder asks before the booking is made, and a product-level register holding the classification for each item, so the work is done once rather than per shipment.
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Takeaways
- The obligation to declare lithium batteries sits with the shipper, and a supplier's silence on the subject is not a defence.
- Classification depends on chemistry, watt-hour rating and the relationship between cells and equipment, so it is answered per product from the technical file, not per shipment from the invoice.
- A held consignment cannot be rebooked as it stands, because the packaging, marking and documentation have to be corrected and the cargo re-tendered before any carrier will accept it.
- Screening battery questions at booking intake and keeping a classification register by product removes the entire failure mode at a cost far below one offloaded shipment.
Frequently asked
Yes, when they are classified, packed, marked and documented correctly. Batteries contained in equipment are generally the most straightforward case, batteries packed with equipment next, and standalone cells the most restricted. The applicable packing instruction depends on chemistry and watt-hour rating, and the carrier must be confirmed as accepting that UN number, because many airlines apply embargoes stricter than the regulations require.
At minimum the UN 38.3 test summary from the cell and battery manufacturer, a commercial invoice describing the goods accurately, and, where the packing instruction requires it, a shipper's declaration for dangerous goods. A safety data sheet is commonly requested. The packaging must also carry the correct lithium battery mark and, where applicable, a Class 9 hazard label.
Because the goods were tendered as general cargo when they contained or were packed with cells that count as dangerous goods for air transport. Acceptance staff and screening both look for this. The shipment cannot be released onto the next flight as it stands: the classification has to be established, the cargo repacked and marked, the documentation raised, and the consignment re-tendered to a carrier that accepts it.