Overview
ADR is the European agreement governing the international carriage of dangerous goods by road. In the UK, ADR principles are implemented through domestic dangerous goods transport rules and enforced across the transport chain.
Lithium batteries are usually classified as Class 9 miscellaneous dangerous goods. That classification matters because the battery chemistry, condition, state of charge, packaging and whether the battery is packed with equipment all affect how it can be moved.
Search focus: DataForSEO showed specific UK demand for terms such as ADR lithium batteries and ADR lithium ion batteries. Those searches are small by volume but high-intent: people are usually trying to work out whether a shipment is legal.
Common Lithium Battery UN Numbers
The first practical step is choosing the correct UN entry. The most common lithium battery entries are:
| UN number | Description | Typical examples |
|---|---|---|
| UN 3480 | Lithium-ion batteries | Loose rechargeable lithium battery packs, e-bike batteries, power tool packs |
| UN 3481 | Lithium-ion batteries contained in or packed with equipment | Laptops, vapes, e-scooters, medical devices, rechargeable equipment |
| UN 3090 | Lithium metal batteries | Non-rechargeable lithium cells and battery packs |
| UN 3091 | Lithium metal batteries contained in or packed with equipment | Devices containing primary lithium cells |
Choosing the wrong entry can lead to incorrect packaging, labels and paperwork. It can also mean a carrier rejects the consignment or, worse, unknowingly moves dangerous goods without the right controls.
Who Has Duties?
GOV.UK guidance on moving dangerous goods states that the consignor is responsible for classifying, marking and packaging dangerous goods. For lithium battery movements, that often means the business arranging the collection or shipment.
Depending on the movement, duties can also sit with:
- Packers, who prepare batteries into packages or overpacks
- Loaders, who place packages onto a vehicle
- Carriers, who transport the dangerous goods
- Consignees, who receive the load and may need to check documentation
- Waste brokers or collection contractors, who arrange movements on behalf of a waste producer
Common gap: businesses often assume their courier, waste carrier or maintenance contractor has handled ADR. In practice, the consignor still needs evidence that batteries were classified, packed and documented correctly.
Packaging, Marking and Labels
Lithium battery packaging must prevent short circuits, protect terminals, stop movement inside the package and contain the batteries in a way appropriate to their chemistry and condition.
Requirements can include:
- UN-approved packaging for many fully regulated movements
- Class 9 lithium battery hazard labels
- Lithium battery marks for eligible smaller consignments
- UN number and proper shipping name on packages or transport documents
- Overpack marks where packages are consolidated
The exact requirements depend on battery type, watt-hour rating, lithium content, quantity, condition and whether an exemption or special provision applies.
Damaged, Defective and Waste Batteries
Damaged or defective lithium batteries are a higher-risk category because they may be more likely to short circuit, leak, heat up or enter thermal runaway.
Examples include batteries that are:
- Swollen, leaking, hot or visibly damaged
- Involved in a fire, crash, water ingress or product recall
- Rejected during quality control or returns processing
- Removed from devices because they are unsafe or unreliable
These batteries should be isolated and assessed before movement. Specialist packaging, additional controls and an ADR-aware carrier may be required. They should not be placed into ordinary parcel networks or mixed waste containers.
Transport Documentation
For fully regulated dangerous goods movements, documentation normally needs to identify the goods clearly enough for the carrier, emergency services and regulators to understand the risk.
Records may include:
- UN number and proper shipping name
- Dangerous goods class
- Packing group if applicable
- Number and type of packages
- Total quantity
- Consignor and consignee details
- Waste consignment documentation where the batteries are waste
Where batteries are waste, dangerous goods paperwork does not replace waste duty of care documents. Both frameworks can apply at the same time.
Training Requirements
Staff involved in lithium battery movements need training proportionate to their role. For many businesses this includes ADR Chapter 1.3 awareness training covering general dangerous goods duties, function-specific tasks and safety procedures.
Training is especially important for teams who:
- Package batteries for courier or waste collection
- Handle customer returns or damaged battery isolation
- Prepare transport documents
- Load batteries onto vehicles
- Arrange collections with waste carriers or dangerous goods couriers
Business Examples
| Scenario | ADR risk | Likely control |
|---|---|---|
| E-bike shop returning a swollen battery pack | Damaged lithium-ion battery | Isolate, assess, use specialist packaging and approved collection route |
| Data centre replacing UPS lithium modules | Industrial lithium battery movement | Project-specific transport documentation and contractor evidence checks |
| Retailer collecting mixed portable batteries | Potential short circuits and mixed chemistry | Suitable collection containers, terminal protection and waste carrier documentation |
| Warehouse processing returned electronics | Unknown or damaged batteries in returned goods | Triage process, isolation route and staff training |
How Cell Comply Helps
Cell Comply helps businesses understand whether lithium battery movements trigger ADR duties and what practical controls they need.
- Compliance audits to identify gaps in transport, storage and documentation
- Battery collection routes with appropriate documentation
- Safety training for battery handling and ADR awareness
- Written procedures for damaged lithium battery returns and isolation
Official Sources Checked
This guide was checked against current GOV.UK dangerous goods and waste battery guidance in April 2026:
FAQs
Are lithium batteries Class 9 dangerous goods?
Yes. Lithium metal and lithium-ion batteries are generally transported as Class 9 miscellaneous dangerous goods. The most common UN numbers are UN 3480 for lithium-ion batteries, UN 3481 for lithium-ion batteries contained in or packed with equipment, UN 3090 for lithium metal batteries, and UN 3091 for lithium metal batteries contained in or packed with equipment.
Who is responsible for ADR compliance?
The consignor is responsible for correctly classifying, packaging, marking and documenting dangerous goods before transport. Other parties in the chain, including packers, loaders, carriers and consignees, also have duties, but the business arranging the shipment cannot simply assume the courier has handled classification.
Do staff need ADR training for lithium batteries?
Staff involved in classifying, packing, documenting, loading or transporting lithium batteries should receive role-appropriate dangerous goods training. For many businesses this means ADR Chapter 1.3 awareness training, with more detailed training for those preparing shipments or operating under full ADR requirements.
Can damaged lithium batteries be sent by normal courier?
Damaged, defective or recalled lithium batteries require specialist assessment and packaging. They should not be sent through a normal parcel network unless that carrier has explicitly accepted the load and the shipment is prepared under the correct dangerous goods provisions.
What keywords informed this guide?
DataForSEO showed UK search demand around “ADR lithium batteries”, “ADR lithium ion batteries” and related dangerous goods terms. This guide targets those searches while focusing on practical compliance for UK businesses handling lithium battery waste and products.