--- type: restriction id: usps-small-consumer-type-lithium-metal-batteries-in-equipment-up-to-1g-per-cell-2g-pe asset: shipping-restrictions-by-class title: "Small consumer-type lithium metal batteries in equipment (up to 1g per cell, 2g per battery) — Postal shipping restrictions by item category" sources: - https://pe.usps.com/text/pub52/pub52c3_028.htm source_quote: "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." generated: true harvested: 2026-08-04 stale_after: 2027-08-04 item_category: "Small consumer-type lithium metal batteries in equipment (up to 1g per cell, 2g per battery)" carrier: "USPS" restriction_type: "restricted" scope: "domestic mail via air and surface transportation" 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" verified: false unverified_fields: carrier, conditions, item_category, restriction_type --- **Item category:** Small consumer-type lithium metal batteries in equipment (up to 1g per cell, 2g per battery) **Carrier:** USPS **Restriction type:** restricted **Scope:** domestic mail via air and surface transportation **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 > 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. Source: