Electric vehicle adoption is growing across Florida, and with it the movement of battery packs: new packs to dealers and repair shops, used packs for second-life storage, and returns for warranty or recycling. Large lithium-ion batteries sit at the demanding end of the dangerous goods spectrum. This guide outlines what shippers should know before moving one.
What classification applies
A lithium-ion battery pack shipped on its own is generally UN3480, Lithium ion batteries, Class 9. A pack installed in or packed with equipment falls under UN3481, and a complete vehicle with the battery installed is regulated as a battery-powered vehicle (UN3171 where applicable). Because EV packs are large, they usually exceed the watt-hour limits that allow small batteries to ship with reduced requirements, so assume full regulation.
Testing and documentation
Every lithium cell and battery type must be proven to meet UN Manual of Tests and Criteria, subsection 38.3 requirements. Manufacturers should supply a test summary, and shippers should keep it available. You also need the correct shipping papers and, for most modes, a documented description of the pack’s watt-hour rating, weight and state of charge. Missing paperwork is a leading cause of refusal.
Large battery packaging provisions
U.S. rules include provisions for lithium batteries above a certain weight, which allow them to travel in strong, impact-resistant outer casings or protective enclosures instead of standard UN-specification boxes, provided the pack is protected from short circuit and secured. In practice, that means:
- Terminals and connectors protected from contact with conductive materials.
- The pack blocked and braced so it cannot move on the pallet or in the trailer.
- Labeling with the Class 9 lithium battery label and UN number when required.
- Pallet and strap arrangements that survive normal handling.
Never assume packaging that worked for a different model will work for another. Confirm the specific pack’s requirements.
Damaged, defective and end-of-life packs
Packs that are damaged, defective or subject to recall are the highest-risk category. They typically require special packaging, specific procedures to contain fire or thermal events and often prohibit certain modes. Do not ship a swollen or leaking pack through ordinary channels. Read our dedicated damaged and recalled battery guide. Used packs for recycling have their own special rules, so involve a compliance specialist first.
Mode limits
Ground
Ground freight is the most common route for EV packs. Choose a carrier that accepts Class 9 lithium batteries, and confirm that the terminal can handle the weight. Use full truckload or a dedicated vehicle when pack size or sensitivity makes cross-docking risky.
Air
Large lithium-ion batteries are typically forbidden on passenger aircraft and heavily restricted on cargo aircraft, often requiring specific approvals and state-of-charge limits. See our Miami airport hazmat guide.
Ocean
Ocean shipments follow IMDG Code requirements and booking constraints from carriers, which sometimes restrict lithium batteries on certain services. We summarized the process in shipping lithium batteries by ocean from Port of Miami.
Storage before you ship
Storing packs needs fire protection planning, quantity limits and distance from combustible material. Storage conditions can also affect state of charge and safety. Our hazmat warehousing is designed for regulated goods, and our team can stage packs for pickup with the proper paperwork prepared in advance.
Getting help
Because EV packs combine high energy and strict rules, it is worth validating classification before the first shipment. Our consultation service reviews packaging and documents, and the compliance team prepares shipping papers. Send the pack model, Wh rating, weight and condition with your quote request. This article is general guidance, and rules change often, so verify current requirements.
Frequently asked questions
What UN number is an EV battery pack?
A lithium-ion pack shipped alone is generally UN3480, Class 9. If it is installed in a vehicle or equipment, other entries such as UN3171 or UN3481 may apply.
Can EV batteries be shipped by air?
Large lithium-ion batteries are typically forbidden on passenger aircraft and tightly restricted on cargo aircraft. Many are moved by ground or ocean instead.
Can I ship a damaged EV battery normally?
No. Damaged, defective or recalled batteries need special packaging and procedures, and some modes prohibit them. Consult a compliance specialist first.