For UN3481 P.I.966, what are the battery requirements and specifications in section II?

• A. The number of cells or batteries per package must not exceed the number required for operation plus two spare sets
• B. Each package may contain no more than five spare batteries
• C. Batteries must be shipped without any spare sets
• D. Cells or batteries may be combined without limit

Answer: (A)

This question tests the rule for how many spare lithium batteries can accompany equipment in a UN3481 shipment under Packing Instruction 966, Section II. The requirement states that the total number of cells or batteries per package must not exceed the number required for operation plus two spare sets. In other words, you can include up to two spare batteries beyond what’s already installed in the device.

Understanding this helps you apply the limit to real-world packaging. For example, if the device uses one battery, you may include up to two spare batteries (three total). If the device uses two batteries, you could have up to four total in the package (the two installed plus two spares). This limit exists to balance practicality with safety, limiting the total energy risk in a single package while still allowing replacements.

So the correct rule is that spares are allowed, but only up to two beyond what’s needed for operation, which is why this option matches the section II requirement. The other possibilities either understate or overstate the allowable spare quantity and don’t reflect the stated limit.