What Are USPS Lithium Battery Label Rules for Military & Diplomatic Mail?
The USPS prohibits lithium batteries in military/diplomatic mail unless authorized under specific exemptions. Military mail handlers must follow IATA Dangerous Goods Regulations for air transport, while diplomatic pouches require UN-certified packaging and “Lithium Battery” labels. Exceptions apply for batteries installed in devices or under 100Wh, but explicit documentation is mandatory. 24V 100Ah LiFePO4 Battery Which … Read more