# Lithium batteries (100 watt hours or less) in a device — Postal shipping restrictions by item category

For Lithium batteries (100 watt hours or less) in a device, carrier is TSA (air transport screening); restriction type is allowed; scope is carry-on bags and checked bags; conditions is Carry On Bags: Yes. Checked Bags: Yes (Special Instructions). Lithium ion batteries limited to a rating of 100 watt hours (Wh) per battery, recorded from its source on 2026-08-04.

- **Item category:** Lithium batteries (100 watt hours or less) in a device _(unconfirmed — we could not tie this to the quote below)_
- **Carrier:** TSA (air transport screening) _(our reading, not quoted from the source)_
- **Restriction type:** allowed _(our reading, not quoted from the source)_
- **Scope:** carry-on bags and checked bags _(our reading, not quoted from the source)_
- **Conditions:** Carry On Bags: Yes. Checked Bags: Yes (Special Instructions). Lithium ion batteries limited to a rating of 100 watt hours (Wh) per battery. _(unconfirmed — we could not tie this to the quote below)_

## What the source says

> Carry On Bags: Yes

## Source

- https://www.tsa.gov/travel/security-screening/whatcanibring/items/lithium-batteries-100-watt-hours-or-less-device

Last verified: 2026-08-04. Review by: 2027-08-04.
Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).