Which “small” batteries qualify for exceptions from the HMR?

“Smaller” lithium cells and batteries qualify for certain exceptions from regulatory requirements when packed in certain quantities. For the purposes of DOT regulations, a “smaller” cell or battery is as follows:

• Lithium Ion:
  • Cells equal to or less than 20Wh, and Batteries equal to or less than 100Wh
  • For highway and rail ONLY: Cells not exceeding 60Wh, and Batteries not exceeding 300Wh
• Lithium Metal:
  • Cells equal to or less than 1g, and Batteries equal to or less than 2g
  • For highway and rail ONLY: Cells not exceeding 5g, and Batteries not exceeding 25g Note: For a single cell battery, such as a typical coin cell or standard AA or AAA replacement battery, refer to the size for cells.