Which UN number is associated with lithium ion batteries that are included with equipment during transport?

• A. Un 3480
• B. Un 3481
• C. Un 3090
• D. Un 3091

Answer: (B)

In transport, lithium ion batteries are categorized by UN numbers based on how they’re shipped. When the battery is included with equipment during transport, the correct UN number is 3481, which designates lithium ion batteries contained in or packed with equipment. This differs from 3480, which covers lithium ion batteries shipped by themselves. The numbers 3090 and 3091 refer to lithium metal batteries, not lithium ion, so they don’t apply here. Using UN 3481 signals specific packaging and handling requirements for batteries that come with the equipment.