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USPS Packaging Instruction 9E

Lithium and Lithium-ion Cells and Batteries — International and APO/FPO/DPO

Primary lithium (non-rechargeable) cells and batteries and secondary lithium-ion (rechargeable) cells and batteries are mailable in limited quantities internationally or to and from APO, FPO, or DPO locations only when they are properly installed in the equipment they operate. Lithium batteries must also be accepted by the destination country as designated by the Individual Country Listing in the IMM. APO/FPO/DPO destinations are also subject to the conditions prescribed by the Department of Defense (DOD) as listed in Overseas Military/Diplomatic Mail in the Postal Bulletin.

Proper Shipping Name

ID Number

UN3091 (Lithium and Lithium-ion Battery contained in equipment)

Mailability

Required Packaging

Primary and Secondary Lithium Batteries
Markings
Quantities
International — Primary and Secondary Lithium Batteries:

Installed in the equipment they are intended to operate:

International – Secondary Lithium-ion Cells and Batteries:

Installed in equipment:

International Lithium Battery Mailability Exhibit

 

 

International APO/FPO/DPO1

Mailpiece Battery Limit

Primary Lithium Batteries2, 3

Small non-rechargeable consumer-type batteries

Contained in (properly installed in equipment)

Mailable

Maximum of 4 cells or 2 batteries

Packed with equipment, but not installed in the equipment

Prohibited

 

Without the equipment they operate (individual batteries in originally sealed packaging)

Prohibited

 

Secondary Lithium-ion Batteries 4, 5

Small rechargeable consumer-type batteries

Contained in (properly installed in equipment)

Mailable

Maximum of 4 cells or 2 batteries

Packed with equipment, but not installed in the equipment

Prohibited

 

Without the equipment they operate (individual batteries in originally sealed packaging)

Prohibited

 


Each secondary battery must not exceed 100 Wh per battery.Note: Shipments containing lithium batteries are not permitted in Global Express Guaranteed mailpieces.