The short answer
Lithium cells and batteries are regulated for transport because they can overheat and ignite if damaged or short-circuited. UN38.3 is the section of the United Nations Manual of Tests and Criteria that sets the tests a lithium cell or battery must pass before it can be transported: altitude simulation, thermal cycling, vibration, shock, external short circuit, impact or crush, overcharge and forced discharge, depending on the type. For shipping, the carrier or forwarder will usually ask for the UN38.3 test summary and a safety data sheet (SDS, formerly MSDS) for the battery. A dash cam that has no lithium battery, because it uses a supercapacitor, normally sidesteps the lithium rules.
This is a general overview. Transport rules differ by mode and carrier and are updated regularly; confirm the details with your forwarder.
Battery model or supercapacitor model
Many dash cams use a supercapacitor as a short power buffer: it only needs to hold enough energy to close the last file when the car is switched off. A battery model carries a small lithium cell that can power the unit for longer, which suits portable or battery-powered use but changes the shipping profile. The table summarizes the differences that matter to a shipper; the product-side comparison is in supercapacitor vs battery.
| Item | Supercapacitor model | Lithium battery model |
|---|---|---|
| Transport class | Generally not lithium dangerous goods; confirm with forwarder | Lithium battery rules apply |
| Paperwork | Normal commercial documents | UN38.3 summary and SDS, plus carrier forms |
| Air freight | Normal cargo routes | Restricted; fewer carriers, extra handling |
| Sea freight | Normal cargo | Dangerous goods booking, marking and packing |
| Heat in a parked car | Tolerates it well | Higher thermal stress on the cell |
One caution: a supercapacitor dash cam can still hold a small coin cell for the clock. Ask the factory to list every battery or cell in the product, not only the main one.
Who is responsible for the documents
The battery supplier tests the cell and issues the UN38.3 test report; a lab usually performs the test. The factory should be able to provide the test summary and the SDS for the cell type used in your model. The shipper, meaning the party that offers the cargo to the carrier, is responsible for correct classification, packing, marking and declaration. When the goods leave China on an FOB or EXW term, the party who books the freight needs a forwarder who is willing and qualified to move lithium goods. Roadtrace does not hold certificates; documents come from the factory or lab, and we check them against report numbers for each program.
What to ask the factory
- Is a lithium cell fitted? List all cells and batteries in the unit, including any small clock cell.
- UN38.3 test summary for the cell, with the cell model and watt-hour or capacity data matching your unit.
- SDS for the battery, with the issue date and the supplier name.
- Packing photos showing how battery units are packed and marked.
- Transport assessment: has the factory shipped this model by air and sea before, and with which forwarder.
The test summary should match the actual cell. A frequent problem is documents for a larger or different cell than the one fitted. Match the cell model on the summary against the cell inside a sample.
Effect on air, sea and express
Express couriers and airlines apply their own lithium acceptance rules in addition to the general standards, so a battery model that moves easily by one route may be refused by another. Sea freight handles dangerous goods but requires proper booking, class labels and sometimes extra lead time. For typical transit ranges for normal cargo, see logistics and shipping; the express sample range of about 3-7 days door-to-door can lengthen for battery goods because fewer services accept them. Sample shipments are where this problem first surfaces: ask your forwarder before the first sample leaves.
The effect on a marketplace business is practical: lithium battery products may need additional listing documents, may be restricted from some fulfillment routes and may require hazmat approval. Planning for a supercapacitor version simplifies these steps.
Packing and state of charge
Transport rules also touch how battery units are packed. Cells and batteries must be protected from short circuit and movement, inner packaging must prevent damage, and packages may need handling labels depending on the mode and quantity. Small cells built into equipment are generally treated more leniently than spare batteries shipped separately, which is one reason a dash cam with a built-in cell ships more easily than a boxed spare battery in the same carton. Ask the factory for photos of how battery units are packed for export, and keep that packing consistent with what the documents describe. If you ever ship loose spare batteries as accessories or spares, treat that as a separate dangerous goods question for your forwarder, not as an extension of the finished-goods booking.
Planning a program around it
The shipping question should enter the program at the specification stage, not at the booking stage. Decide the markets, the main transport modes and whether samples will move by express; then choose the power design. A mixed catalog - supercapacitor models for installed and cross-border volume, battery models for portable use where the market asks - is common among distributors. What matters is that the choice is deliberate: the same housing is often available in both versions, and switching later means new documents, new labels and a repeat of the sample checks.
Choosing a power design for your program
If your customers use the dash cam as a permanently installed, hardwired device, a supercapacitor model is usually the more natural fit for heat and for shipping. If your customers want a portable unit that records without vehicle power, a battery is the honest answer, and the logistics burden should be priced into the plan. See battery-powered dash cams for the user-side trade-offs and heat resistance for the climate side.
State the power design and your shipping routes on the quote form so the shortlist uses compatible models, and review the broader document set on the certifications page.