Required Packaging

Primary (non-rechargeable) and Secondary (rechargeable)

• All primary lithium cells and batteries must be mailed within a firmly sealed package, separated and cushioned to prevent short circuit, movement, or damage.
• Except for batteries installed in equipment, they must be in a strong outer package.
• All outer packages must have a complete delivery and return address.

Marking

• Primary (non-rechargeable) properly packed with or properly installed in the device they operate:
• Mailable international via air transportation and domestic via air or surface transportation.
• The outside of the package must be marked on the address side “Package Contains Primary Lithium Batteries.”
• Primary (non-rechargeable) not packed with or installed in equipment:
• Mailable domestic via surface transportation only.
• The outside of the package must be marked on the address side “Surface Mail Only, Primary Lithium Batteries — Forbidden for Transportation Aboard Passenger Aircraft.”
• Secondary (rechargeable) properly packed with or properly installed in the device they operate or mailed separately:
• Mailable international via air transportation and domestic via air or surface transportation.
• The outside of the package must be marked on the address side “Package Contains Lithium-ion Batteries (no lithium metal).”

Quantities

• Primary (non-rechargeable) properly packed with or properly installed in the device they operate:
• Each cell must contain no more than 1.0 gram (g) of lithium content per cell. Each battery must contain no more than 2.0 g aggregate lithium content per battery.
• The mailpiece must not exceed 11 pounds.
• Primary (non-rechargeable) not packed with or installed in equipment:
• The mailpiece must not exceed 5 pounds.
• Secondary (rechargeable) properly packed with or properly installed in the device they operate or mailed separately:
• Each cell must contain no more than 1.5 g of equivalent lithium content per cell, and each battery must contain no more than 8.0 g aggregate quantity of equivalent lithium content.
• The mailpiece must not contain more than three batteries.