# Lithium-ion batteries packed with equipment, PI 966 Section I (UN3481, > 20 Wh cells / > 100 Wh batteries) — Postal shipping restrictions by item category

For Lithium-ion batteries packed with equipment, PI 966 Section I (UN3481, > 20 Wh cells / > 100 Wh batteries), carrier is FAA (air cargo, ICAO Technical Instructions); restriction type is restricted; scope is passenger and cargo aircraft; conditions is Cell/battery count limited to minimum to power equipment plus 2 spare sets; net mass 5 kg passenger aircraft, 35 kg cargo aircraft; shipper's declaration required; Class 9 lithium battery label; UN spec packaging (PG II), recorded from its source on 2026-08-10.

- **Item category:** Lithium-ion batteries packed with equipment, PI 966 Section I (UN3481, > 20 Wh cells / > 100 Wh batteries) _(verified: appears in the quote below)_
- **Carrier:** FAA (air cargo, ICAO Technical Instructions) _(our reading, not quoted from the source)_
- **Restriction type:** restricted _(our reading, not quoted from the source)_
- **Scope:** passenger and cargo aircraft _(our reading, not quoted from the source)_
- **Conditions:** Cell/battery count limited to minimum to power equipment plus 2 spare sets; net mass 5 kg passenger aircraft, 35 kg cargo aircraft; shipper's declaration required; Class 9 lithium battery label; UN spec packaging (PG II). _(verified: appears in the quote below)_

## What the source says

> PI 966 Section I UN3481 Lithium-Ion Batteries Packed w/ Equipment > 20 Wh Minimum to Power Equip + 2 Spare Sets > 100 Wh Minimum to Power Equip + 2 Spare Sets 5kg (PAX) 35kg (CAO) Yes

## Source

- https://www.faa.gov/hazmat/safecargo/icao-lithium-battery-summary-chart

Last verified: 2026-08-10. Review by: 2027-08-10.
Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).