# Spare (uninstalled) lithium ion and lithium metal batteries — Postal shipping restrictions by item category

For Spare (uninstalled) lithium ion and lithium metal batteries, carrier is TSA (air transport screening); restriction type is restricted; scope is carry-on baggage only; conditions is Must be carried in carry-on baggage only. Lithium metal limited to 2 grams per battery; lithium ion limited to 100 watt hours (Wh) per battery, recorded from its source on 2026-08-04.

- **Item category:** Spare (uninstalled) lithium ion and lithium metal batteries
- **Carrier:** TSA (air transport screening) _(our reading, not quoted from the source)_
- **Restriction type:** restricted _(our reading, not quoted from the source)_
- **Scope:** carry-on baggage only _(our reading, not quoted from the source)_
- **Conditions:** Must be carried in carry-on baggage only. Lithium metal limited to 2 grams per battery; lithium ion limited to 100 watt hours (Wh) per battery.

## What the source says

> Spare (uninstalled) lithium ion and lithium metal batteries, including power banks and cell phone battery charging cases, must be carried in carry-on baggage only. Lithium metal (non-rechargeable) batteries are limited to 2 grams of lithium per battery. Lithium ion (rechargeable) batteries are limited to a rating of 100 watt hours (Wh) per battery.

## 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/).