UN certified battery packaging

Are Lithium Batteries Prohibited in USPS Shipments?

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Featured Snippet Answer: Lithium batteries are partially restricted by USPS depending on type and quantity. Small consumer-grade lithium-ion/polymer batteries under 100Wh are permitted in domestic mail with proper packaging. Larger batteries, loose cells, and damaged units are prohibited. International shipments face stricter bans. Always declare contents and use UN-certified packaging to comply with USPS Publication … Read more

What Are the 2023 USPS Lithium Battery Shipping Restrictions?

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The USPS updated lithium battery shipping restrictions in 2023 to prohibit air transport of all lithium-ion batteries except those pre-installed in devices. Ground shipping remains permitted with specific packaging requirements, including UN-certified containers and hazard labels. These rules apply to both domestic and international shipments, with stricter limitations for overseas mail (max 2 batteries per … Read more

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