Importing Lithium Batteries and Battery-Powered Products from China to the UK: An SME Checklist

Quick answer: To import lithium batteries, or products with batteries inside, from China to the UK you need four things in place: a UN38.3 test summary for every battery type, correct dangerous goods packing and paperwork for the freight route, product safety and marking checks for the finished product, and battery producer registration once you sell the goods in the UK. Most problems come from missing documents, so ask your factory for them before you pay the deposit.

Battery powered goods are some of the most popular products UK SMEs source from China: power banks, speakers, lights, toys, e-bike parts, tools and small appliances. They are also among the most likely to be delayed or refused by carriers. This checklist walks through what to ask for at each stage, from sample to delivery in the UK.

Step 1: Identify the battery and how it ships

Start by recording the chemistry, capacity (watt hours) and weight of every battery, and how it will be packed. For lithium ion batteries the UN number depends on how they travel:

• UN3480: lithium ion batteries shipped on their own.
• UN3481: lithium ion batteries packed with equipment, or fitted inside equipment.

Lithium metal batteries, such as coin cells, have their own UN numbers. Getting this right matters because packing rules, labels and carrier acceptance all follow from it. Our electronics importing service page covers the wider product categories we help with.

Step 2: Get the UN38.3 test summary

Every lithium cell and battery type must pass the tests in the UN Manual of Tests and Criteria, Part III, section 38.3 before it can be transported. Ask the factory for the UN38.3 test summary for the exact battery model in your product. A compliant carrier or forwarder should refuse a load without it.

Check the summary carefully:

• The battery model, capacity and manufacturer match your specification.
• It covers the battery supplier used in bulk, not only the one in your sample.
• It is issued by a recognised testing laboratory.

Ask for a safety data sheet as well. Your forwarder will usually request one.

Step 3: Choose the right freight route

Lithium batteries are dangerous goods, Class 9, on every route. They must be packed, marked, labelled and documented to the rules for that mode of transport.

• Air freight: rules follow the ICAO Technical Instructions. Lithium batteries shipped on their own are forbidden in the hold of passenger aircraft, so they travel as cargo aircraft only, with tighter limits. The UK Civil Aviation Authority summarises the rules on its transport of lithium batteries page.
• Sea freight: the usual route for larger orders. The shipment needs a dangerous goods declaration, approved packaging where required and a shipping line that accepts the cargo. Lead times can be longer because not every sailing takes dangerous goods.
• Express and courier: many couriers restrict or refuse loose lithium batteries, even for samples. Check before your supplier books.

Our guide to sea freight vs air freight from China to the UK compares cost and timing. Our freight forwarding team books dangerous goods with forwarders who handle batteries regularly.

Step 4: Check product safety and marking

The battery is only one part of the job. The finished product must also meet UK rules. Depending on the product, that can include electrical safety, electromagnetic compatibility and UKCA or CE marking, plus the product security rules for connectable devices. Our guides to UKCA marking requirements and sourcing compliant electronics accessories explain what evidence to request.

Make sure labels show the right markings, your UK business name and address, and the crossed out wheelie bin symbol for batteries and electrical products.

Step 5: Register as a battery producer

If your business has a UK presence and is the first to make batteries available on the UK market, you count as a battery producer. That includes batteries fitted inside products. According to GOV.UK waste batteries producer responsibility guidance:

• Producers placing more than 1 tonne of portable batteries a year on the market must join a battery compliance scheme, by 15 October before the compliance year starts.
• Producers placing 1 tonne or less register with their environmental regulator on the National Packaging Waste Database and report tonnage and chemistry by 31 January each year.
• Industrial and automotive battery producers register with the Office for Product Safety and Standards within 28 days of first placing batteries on the market.

You may also have duties for the electrical product itself under the waste electrical and electronic equipment rules.

Step 6: Clear customs

Dangerous goods rules sit on top of the normal import process. You still need a GB EORI number, the right commodity code, a customs declaration and payment of duty and import VAT. See our EORI number guide if you are new to importing.

Supplier checklist before you pay a deposit

1. Battery model, chemistry, watt hours and battery manufacturer named in your specification.
2. UN38.3 test summary and safety data sheet for that exact battery.
3. Product test reports for electrical safety and marking.
4. Confirmation the battery supplier will not change between sample and bulk.
5. Packing, labels and markings agreed in writing.
6. A pre-shipment inspection that checks battery models and documents.

If a supplier cannot provide these, consider verifying the Chinese company before you go further, and have our quality control and factory audits team inspect the goods.

Common mistakes

• Booking courier samples without checking battery rules.
• Accepting a UN38.3 summary for a different battery model.
• Assuming the forwarder will sort out the dangerous goods paperwork alone.
• Forgetting producer registration because the battery is inside the product.
• Letting the factory switch battery suppliers to save cost.

Frequently asked questions

Can I ship lithium batteries from China to the UK by air?

Yes, if they are packed, labelled and documented to the ICAO rules. Batteries shipped on their own must go on cargo aircraft only, so many SMEs use sea freight for bulk orders.

What is a UN38.3 test summary?

It is a document showing a lithium battery type has passed the UN transport tests. Carriers and forwarders ask for it before accepting the shipment.

Is a product with a built in battery classed as dangerous goods?

Yes. Lithium batteries contained in equipment ship under UN3481. The rules are a little lighter than for loose batteries, but paperwork and labels are still needed.

Do I need to register as a battery producer if I sell only a few products?

Usually yes, if you are the first business to place them on the UK market. Small producers register on the National Packaging Waste Database and report each year.

Who is responsible for compliance, me or the factory?

As the UK importer, you are. Build the documents into your purchase order so the factory knows what it must supply.

Can Epic help with battery powered products?

Yes. We collect test reports, check battery models at inspection and book freight with dangerous goods specialists. You can book a free chat to talk through your product.