# Electronic devices sent with lithium batteries (battery not connected) — Postal shipping restrictions by item category

For Electronic devices sent with lithium batteries (battery not connected), carrier is Royal Mail / Parcelforce; restriction type is restricted; scope is UK (Post Office counter); conditions is Maximum lithium batteries per parcel is the minimum needed to power the device plus two spares; lithium ion max 20Wh per cell or 100Wh per battery; lithium metal max 1g per cell or 2g per battery; max net quantity 5kg per parcel; defective or damaged cells forbidden, recorded from its source on 2026-08-10.

- **Item category:** Electronic devices sent with lithium batteries (battery not connected) _(verified: appears in the quote below)_
- **Carrier:** Royal Mail / Parcelforce _(our reading, not quoted from the source)_
- **Restriction type:** restricted _(our reading, not quoted from the source)_
- **Scope:** UK (Post Office counter) _(our reading, not quoted from the source)_
- **Conditions:** Maximum lithium batteries per parcel is the minimum needed to power the device plus two spares; lithium ion max 20Wh per cell or 100Wh per battery; lithium metal max 1g per cell or 2g per battery; max net quantity 5kg per parcel; defective or damaged cells forbidden. _(verified: appears in the quote below)_

## What the source says

> The maximum number of lithium batteries allowed in each parcel is the minimum number required to power the device plus two spares. For lithium ion/polymer batteries the Watt-hour rating must not exceed 20Wh per cell or 100Wh per battery. For lithium metal/alloy batteries the lithium content must not be more than 1g per cell or 2g per battery.

## Source

- https://corporate.postoffice.co.uk/media/w5dlus1c/foia-response_foi2025_00179_appendix-d_rm-dangerous-goods-and-prohibited-and-restricted.pdf

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/).