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Certification for Transport of Lithium Batteries

Certification for Transport of Lithium Batteries: A Comprehensive Guide

The transportation of lithium batteries has become increasingly common in recent years due to the growing demand for portable electronic devices, electric vehicles, and renewable energy systems. However, the risks associated with these batteries have led regulatory bodies worldwide to establish specific guidelines and regulations for their transport. One such requirement is certification, which ensures that shippers comply with international standards and safety protocols.

Background on Lithium Battery Transport Regulations

In 2007, the International Civil Aviation Organization (ICAO) implemented the Technical Instructions for the Safe Transport of Dangerous Goods by Air (TI), which included specific regulations for lithium batteries. The TI guidelines were later adopted by the International Maritime Organization (IMO) and the United Nations Committee of Experts on the Transport of Dangerous Goods (TDG).

The regulations outline various requirements, including labeling, packaging, and documentation. Shipments must be properly classified, packaged, and labeled to ensure safe transportation. Additionally, there are restrictions on the types of lithium batteries that can be transported by air or sea.

Classification and Packaging Requirements for Lithium Batteries

For shippers transporting lithium batteries, its essential to understand the classification and packaging requirements. The TDG regulations categorize lithium batteries into three main classes:

  • UN 3090: Spare lithium batteries

  • UN 3480: Cells of batteries containing lithium-ion cells with electrolyte solution

  • UN 3495: Batteries packed with or containing lithium-ion cells with electrolyte solution


  • For air transport, the TI guidelines require that shipments be packaged in accordance with IATAs Lithium Battery Safety Guidelines. The guidelines specify requirements for:

  • Inner packaging: Each cell or battery must be individually enclosed in a protective sleeve or inner pouch.

  • Outer packaging: Inner packages must be placed in an outer package, such as a cardboard box or plastic container, which is designed to prevent damage during transport.

  • Labeling: Shipments must be labeled with UN numbers, proper shipping names, and hazard class labels.


  • For sea transport, the IMO regulations require that shipments comply with the International Maritime Dangerous Goods (IMDG) Code. The IMDG Code specifies requirements for labeling, packaging, and documentation.

    Detailed Requirements for Lithium Battery Transport

    To ensure compliance with regulations, shippers must also adhere to detailed guidelines outlined in IATAs Lithium Battery Safety Guidelines and the IMDG Code:

  • Battery Type: Only lithium-ion batteries are permitted on aircraft, while both lithium-ion and nickel-cadmium (Ni-Cd) batteries can be transported by sea.

  • Battery Capacity: Air transport has a maximum battery capacity limit of 160Wh per battery or 2.5g of Li in any one type, whereas the IMDG Code allows up to 12V 100Ah lithium-ion cells in certain circumstances.

  • Charge State: Lithium batteries must be shipped with no more than 30 charge for air transport and less than 50 charge for sea transport.


  • QA Section

    What is the difference between UN 3090, UN 3480, and UN 3495?

    UN 3090 refers to spare lithium batteries, while UN 3480 and UN 3495 refer to cells of batteries containing lithium-ion cells with electrolyte solution. The main difference lies in how the lithium ions are contained.

    Can I transport lithium batteries by any mode of transportation?

    No, regulations restrict air and sea transport for lithium batteries. Land transport is generally allowed but must comply with national regulations.

    What are some common mistakes made when transporting lithium batteries?

    Common errors include:

  • Incorrect classification or labeling

  • Insufficient inner or outer packaging

  • Failure to follow specific requirements for battery type, capacity, charge state, and weight


  • How do I ensure compliance with TI guidelines for air transport?

    Shipments must be properly labeled, packaged in accordance with IATAs Lithium Battery Safety Guidelines, and accompanied by documentation that includes the shippers address, consignee details, and commodity description.

    What are some additional requirements for sea transport?

    In addition to following IMO regulations, shippers must also:

  • Keep detailed records of shipments

  • Follow specific guidelines for packaging and labeling

  • Ensure compliance with country-specific regulations


  • Can I ship lithium batteries as part of a larger shipment or in bulk quantities?

    Yes, but only if the larger shipment or bulk quantity complies with TI and IMO regulations. Shipments must be properly labeled, packaged, and documented.

    How do I obtain certification for transporting lithium batteries?

    Certification typically involves demonstrating compliance with relevant regulations by:

  • Providing proof of training on safe handling and transportation practices

  • Keeping detailed records of shipments

  • Ensuring compliance with labeling and packaging requirements


  • What are some best practices when shipping lithium batteries?

    Some best practices include:

  • Researching country-specific regulations before transport

  • Following guidelines for packaging, labeling, and documentation

  • Maintaining accurate records of shipments
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