Lithium Battery Rules for Shipping From China to Pakistan

Why do lithium batteries have special shipping rules?

A damaged or badly made lithium battery can overheat and catch fire, a process called thermal runaway, and a fire in a cargo hold is hard to put out. For that reason, lithium batteries are classed as dangerous goods for air transport. The rules come from the ICAO Technical Instructions and are published for airlines and shippers in the IATA Dangerous Goods Regulations. IATA also publishes a free Lithium Battery Guidance Document, revised for the 2026 regulations, which is the main source for this article.

The rules apply to the shipper, not to you as the buyer, but they decide what a Chinese seller or courier will accept. IATA spells this out as a chain of responsibility: manufacturers classify their products and make the information available, shippers pack, mark, label and document dangerous goods correctly, and freight forwarders watch for consignments with undeclared dangerous goods. If a seller in Shenzhen cannot book your parcel on a flight, it does not leave China. That is why it pays to understand the categories before you order. Rules change every year, so treat this as a guide and check the current position for your item.

What are the three battery categories?

For lithium-ion batteries, the rechargeable kind found in phones, laptops and power tools, IATA uses two UN numbers. UN 3480 covers lithium-ion batteries shipped by themselves. UN 3481 covers lithium-ion batteries either contained in equipment or packed with equipment. Lithium metal batteries, the mostly non-rechargeable kind found in watches, car key fobs and some cameras, follow the same pattern under UN 3090 and UN 3091.

The difference between "contained in" and "packed with" is physical. If the battery is installed and the device can be switched on as it comes out of the box, it is contained in equipment. If the battery sits in the same box but is not installed, it is packed with equipment. If there is no device in the box at all, it is a battery by itself.

Why are power banks so hard to ship by air?

Because the rules treat a power bank as a battery, not as a device. IATA's guidance says power banks, power packs and similar units designed mainly to charge other devices are classified as batteries and must be shipped as UN 3480 (or UN 3090 for lithium metal). A built-in torch or a display does not change that, because the bulk of the unit is a battery and its main job is supplying power.

Once a power bank is a standalone battery, three rules hit it. It must be shipped at a state of charge of no more than 30% of its rated capacity. It cannot be carried as cargo on a passenger aircraft unless the relevant authorities approve it under Special Provision A201. And for larger batteries, the packing must use UN specification packaging, with labels and a shipper's declaration.

Courier networks add their own limits on top. DHL Express says not all types of lithium batteries are accepted, that only pre-approved account holders can ship them, and it gives a portable battery charger as an example of a loose battery. Many sellers and consolidators selling to Pakistan simply exclude power banks from air shipping because the paperwork and approvals cost more than the item.

What is a watt-hour rating and why does it matter?

Watt-hours (Wh) measure how much energy a lithium-ion battery holds, and the air rules use it to set limits. IATA gives the formula: multiply the nominal voltage by the capacity in amp-hours. If the label only shows milliamp-hours, divide by 1,000 first. So a battery marked 3.7V and 10,000mAh is 3.7 × 10 = 37Wh.

The key thresholds in IATA's flowcharts are 20Wh per cell and 100Wh per battery. Batteries at or under those limits can be shipped under simpler provisions. Batteries above 100Wh, such as many e-bike, scooter and portable power station batteries, fall into the fully regulated category with UN specification packaging and documentation. IATA notes that most consumer lithium-ion batteries are below 100Wh, and that batteries made after 2009 under the simpler sections must have the Wh rating marked on the case. If you cannot find a Wh figure on a listing, ask the seller for it before ordering.

What changed for lithium batteries in 2026?

From 1 January 2026, lithium-ion batteries packed with equipment must be offered for air transport at a state of charge not exceeding 30% of rated capacity, unless the relevant states approve otherwise. Under the simpler Section II rules, this applies to batteries rated above 2.7Wh. The same reduced charge rule now also applies to vehicles powered by lithium-ion batteries, such as e-scooters.

For batteries contained in equipment, IATA strongly recommends, but does not require, shipping at 30% charge or with the battery gauge showing no more than 25%. The reasoning is simple: a battery at lower charge is less likely to go into thermal runaway. In practice this means a camera or tool that arrives with its separate battery nearly empty is normal, and you should charge it fully before judging its battery life.

IATA also notes that passengers face new restrictions on carrying power banks, which it covers in a separate guidance document for travellers. That is a different set of rules from cargo, but it shows the direction of travel: power banks are getting more scrutiny, not less. If someone offers to bring a power bank back from China in their luggage instead, check the airline's current rules first.

What about watches, key fobs and e-scooters?

Two groups of products follow slightly different rules and come up often in single orders.

Lithium metal batteries. These are mostly non-rechargeable cells. IATA lists watches, calculators, cameras, temperature data loggers, car key fobs and defibrillators as typical uses. Installed in a device, they ship like other contained batteries under UN 3091. Shipped on their own under UN 3090, they are forbidden as cargo on passenger aircraft, just like loose lithium-ion batteries. A spare pack of lithium coin cells ordered by itself is therefore harder to ship than a watch with one already inside.

E-scooters, e-bikes and other battery vehicles. IATA treats these as vehicles powered by batteries, with their own UN numbers such as UN 3556 for lithium-ion powered vehicles. Where the battery is over 100Wh, the vehicle must be shipped with the battery at no more than 30% state of charge, or with the gauge showing no more than 25%. Above that, it needs approval from the state of origin and the airline's state. Under 100Wh, the same reduced charge is strongly recommended. Most adult e-scooter and e-bike batteries are well above 100Wh, so these are bulky, regulated shipments, and a spare e-bike battery on its own is about the hardest consumer item to move by air.

The "Cargo Aircraft Only" point matters more than it sounds. IATA requires packages of loose lithium-ion and lithium metal batteries under the fully regulated sections to carry a Cargo Aircraft Only label. Much air cargo travels in the hold of passenger flights, so a parcel that can only go on a freighter has fewer routes, fewer carriers willing to take it and usually a higher cost.

What does this mean for one buyer in Pakistan?

For most single-item orders, very little. Phones, laptops, tablets, earbuds, smartwatches, handheld consoles, dash cams and cordless tools ship by air routinely with their batteries installed or packed with them. That covers the large majority of electronics people import one at a time.

The trouble starts with three kinds of order:

• Power banks and portable chargers. Expect refusal by air unless the seller or courier confirms in writing that they can ship it.
• Spare or replacement batteries on their own. A replacement laptop battery or phone battery ordered without the device is a standalone battery, even if it is meant for a device you own.
• Large batteries over 100Wh. E-bike packs, scooter batteries and power stations need fully regulated dangerous goods shipping. For these, sea freight is often the realistic option, with a much longer timeline.

Sellers sometimes get around the rule by putting a battery inside a device box or declaring it as something else. Do not ask for that. Undeclared dangerous goods are a safety risk, and a parcel caught at screening can be held, returned or destroyed. Our list of what you cannot import from China to Pakistan covers other restricted items, like aerosols and perfumes, that hit the same air shipping wall.

How do I check whether my item will be accepted, step by step?

1. Find out where the battery is. Installed, in the box, or the whole product. That tells you the category.
2. Find the Wh rating. Look for it on the listing or the battery label. If only mAh and voltage are shown, calculate it.
3. Check the chemistry. Rechargeable lithium-ion and lithium polymer follow one set of rules, lithium metal another.
4. Ask the seller for the battery test summary. IATA requires manufacturers and distributors to make a UN 38.3 test summary available for lithium cells and batteries made after 30 June 2003. A seller who cannot provide one is a warning sign.
5. Ask how they will ship it to Pakistan. Get a written yes for air shipping before you pay, especially for anything that is mostly battery.
6. Check condition on arrival. A swollen, hot or leaking battery should not be charged. Stop using it and contact the seller.

What are the common mistakes with battery shipments?

• Assuming a power bank counts as a gadget. Under the rules it is a battery, full stop.
• Ordering a spare battery separately to save money. Buying the device with a spare battery in the box is often easier to ship than the battery alone.
• Trusting "no problem" from a seller who has never shipped to Pakistan. Ask how, by which carrier, and get it in writing.
• Ignoring damaged battery rules. DHL Express says defective, damaged and recalled batteries are not permitted, and a damaged battery inside a device must be removed before the shipment is accepted. Returning a faulty battery device to China can therefore be harder than receiving it.
• Judging battery life on day one. Reduced charge for shipping is normal. Charge fully and run a few cycles first.

Can items with batteries go by sea instead?

Yes. Sea freight is commonly used for large batteries and battery-heavy products, but it is still regulated, and it takes far longer: sea LCL from China to Pakistan typically runs 25 to 45 days, against 7 to 15 days for air freight door to door. For a single small item, sea freight rarely makes sense on cost or time. Our guide on shipping costs and times from China to Pakistan compares the options.

How do we handle items with batteries?

If you send us a product link on WhatsApp, we check how the item ships before quoting. For devices with built-in batteries that is usually straightforward. For power banks, loose batteries and large battery packs, we tell you plainly if air shipping is not possible rather than quoting a price we cannot deliver. When we can ship it, you get one price in rupees, you pay once before it ships, and we handle one item per order only. The complete guide to importing electronics covers the other checks for gadgets.

Sources

• IATA Lithium Battery Guidance Document, 2026
• IATA Battery Shipping Regulations
• DHL Express: Lithium Batteries