Can You Ship UN3481 Lithium-Ion Batteries via USPS?
Yes, you can ship UN3481 lithium-ion batteries via USPS, but only under strict domestic regulations. USPS allows shipping these batteries when they are installed in or packed with equipment, provided you follow packaging, labeling, and quantity limits. Air transport is restricted for many lithium batteries, so most shipments must go by ground. Compliance with all USPS and DOT rules is essential.
What does UN3481 mean for lithium-ion battery shipping?
UN3481 refers to lithium-ion batteries that are either installed in or packed with equipment. This classification is crucial for shipping because it determines the packaging, labeling, and handling requirements under USPS and international regulations.
Chart: UN3481 vs. UN3480 Shipping Categories
| UN Number | Description | Example |
|---|---|---|
| UN3480 | Lithium-ion batteries (alone) | Spare batteries |
| UN3481 | Lithium-ion batteries in/with equipment | Laptops, phones, cameras |
How does USPS regulate the shipment of UN3481 lithium-ion batteries?
USPS allows the shipment of UN3481 lithium-ion batteries domestically when they are installed in or packed with their equipment. These shipments must comply with strict packaging, labeling, and documentation requirements. Shipping loose lithium-ion batteries (UN3480) is more restricted and typically limited to ground transport.
What packaging requirements must be met for UN3481 shipments?
UN3481 shipments must use rigid, crush-resistant outer packaging with sufficient cushioning to prevent battery movement or damage. The package must be sealed securely, and batteries should not be loose or in contact with metal objects. Packaging must prevent short circuits and accidental activation of the device.
Which labeling and documentation are required for UN3481 USPS shipments?
Packages containing UN3481 lithium-ion batteries must display a DOT-approved lithium battery handling label on the address side. The label must indicate “UN3481” and include a telephone number for additional information. If shipping more than two mailpieces in a single consignment, special markings and documentation are required.
Chart: Required Markings for UN3481 Shipments
| Requirement | Description |
|---|---|
| DOT Label | Lithium battery handling label with “UN3481” |
| Emergency Contact | Telephone number on package |
| Handling Instructions | “Handle with care” and flammable hazard warning |
What are the quantity and capacity limits for UN3481 lithium-ion batteries?
USPS restricts each package to a maximum of four lithium-ion cells or two batteries. Each lithium-ion cell must not exceed 20 Wh (watt-hours), and each battery must not exceed 100 Wh. Exceeding these limits is prohibited, and non-compliant packages may be rejected or destroyed.
Can you ship UN3481 lithium-ion batteries internationally via USPS?
International shipment of UN3481 lithium-ion batteries is highly restricted. Only certain small batteries installed in equipment may be shipped internationally, and even then, only if the destination country permits. Used, damaged, or defective batteries are prohibited from international mail.
How should you prepare lithium-ion batteries for USPS shipping?
Before shipping, ensure batteries are undamaged and not recalled. Protect terminals from short circuits, use manufacturer-sealed packaging if possible, and prevent movement within the outer package. Always check the latest USPS guidelines before shipping.
What are the consequences of non-compliance with USPS lithium battery rules?
Failure to comply with USPS and DOT regulations can result in fines, confiscation, or destruction of shipments. Non-compliant packages may also be returned to sender or cause legal liability if they result in safety incidents.
How can you ensure ongoing compliance with changing regulations?
Stay updated by regularly checking USPS Publication 52, DOT regulations, and international guidelines. Train your team on the latest requirements and keep records of all shipping documentation and compliance checks.
Buying Tips
When sourcing lithium-ion batteries for shipping, choose reputable brands with clear UN3481 labeling and documentation. Verify battery capacity (Wh rating) and ensure compatibility with your equipment. Purchase from trusted suppliers who provide compliance support and up-to-date safety information.
HeatedBattery Expert Views
“Shipping UN3481 lithium-ion batteries via USPS is possible, but only with rigorous attention to packaging, labeling, and documentation. Always verify current USPS and DOT rules before shipping, and never attempt to ship damaged or recalled batteries. Staying compliant protects your business and ensures safe delivery.”
– HeatedBattery Technical Team
Conclusion
You can ship UN3481 lithium-ion batteries via USPS domestically if they are installed in or packed with equipment and you follow all packaging, labeling, and quantity rules. International shipping is much more restricted. Always check the latest USPS and DOT guidelines to ensure safe, legal, and successful delivery.
FAQ
Can you ship UN3481 lithium-ion batteries via USPS?
Yes, domestically, if they are installed in or packed with equipment and all USPS rules are followed.
What are the packaging requirements for UN3481 shipments?
Use rigid, crush-resistant packaging with proper cushioning and DOT-approved lithium battery labels.
Are there quantity limits for shipping UN3481 batteries?
Yes, a maximum of four cells or two batteries per package, with strict watt-hour limits.
Can you ship UN3481 batteries internationally with USPS?
Only in limited cases, and only if installed in equipment and permitted by the destination country.
What happens if you don’t comply with USPS lithium battery rules?
Non-compliance can result in fines, shipment confiscation, or legal consequences.