Batteries that are classed as dangerous goods by the latest edition of the International Civil Aviation Organization’s (ICAO) Technical Instructions are prohibited. This includes wet spillable lead acid/lead alkaline batteries (such as car batteries), used alkaline metal, nickel metal hydride (NiMH), nickel cadmium (NiCd), zinc-air batteries, and damaged batteries of any type.
Lithium ion/polymer/metal/alloy batteries when not sent with, or contained in/connected to an electronic device, are prohibited.
Lithium ion/polymer/metal/alloy batteries are allowed when sent with or contained in/connected to an electronic device, but are subject to packaging, volume and quantity restrictions. Please see
www.royalmail.com/restrictedgoods.
For more information on lithium batteries please see the
IATA Lithium Battery Guidance Document .
Sealed lead acid batteries are allowed in the UK, but are also subject to packaging, volume, quantity and labelling restrictions. Please see
www.royalmail.com/restrictedgoods
Alkaline metal, nickel metal hydride (NiMH) and nickel cadmium (NiCd) batteries may only be sent when new and in their original packaging. Please see
www.royalmail.com/restrictedgoods