Reference Source

Small consumer-type lithium metal batteries in equipment (up to 1g per cell, 2g per battery)

For Small consumer-type lithium metal batteries in equipment (up to 1g per cell, 2g per battery), carrier is USPS; restriction type is restricted; scope is domestic mail via air and surface transportation; conditions is Mailable via air and surface; cells not to exceed 1g lithium, batteries not to exceed 2g lithium; up to 8 cells or 2 batteries per mailpiece; must display DOT-approved lithium battery mark, recorded from its source on 2026-08-04.

Item category
Small consumer-type lithium metal batteries in equipment (up to 1g per cell, 2g per battery) unconfirmed
Carrier
USPS our reading
Restriction type
restricted our reading
Scope
domestic mail via air and surface transportation our reading
Conditions
Mailable via air and surface; cells not to exceed 1g lithium, batteries not to exceed 2g lithium; up to 8 cells or 2 batteries per mailpiece; must display DOT-approved lithium battery mark unconfirmed
Sourcepe.usps.com
Verified2026-08-04
Review by2027-08-04
DatasetPostal shipping restrictions by item category

Values marked unconfirmed are shown, but we could not tie them to the quote below: Conditions, Item category. Read the quote and judge them yourself.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

Small consumer-type lithium metal cells or batteries (also called primary lithium cells or batteries), such as those used to power cameras or flashlights, are mailable domestically under the following conditions.

pe.usps.com, retrieved 2026-08-04

Source

Last verified against source: 2026-08-04. Scheduled for re-check by: 2027-08-04. This page as Markdown · OKF concept · full dataset as JSON.