Are Lithium Batteries Prohibited in USPS Shipments?
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