Small consumer-type lithium-ion batteries in equipment (up to 20 Wh per cell, 100 Wh per battery)
For Small consumer-type lithium-ion batteries in equipment (up to 20 Wh per cell, 100 Wh 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 20 Wh, batteries not to exceed 100 Wh; 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-ion batteries in equipment (up to 20 Wh per cell, 100 Wh 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 20 Wh, batteries not to exceed 100 Wh; up to 8 cells or 2 batteries per mailpiece; must display DOT-approved lithium battery mark unconfirmed
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-ion cells and batteries (also called secondary lithium cells or batteries), such as those used to power cell phones and laptop computers, are only mailable domestically under the following conditions.
— pe.usps.com, retrieved 2026-08-04
Source
- pe.usps.comhttps://pe.usps.com/text/pub52/pub52c3_028.htm