Quick answer: The UK Civil Aviation Authority (CAA) sets lithium battery limits by the battery’s watt-hour (Wh) rating. Batteries over 160Wh are prohibited in passenger baggage, spare lithium batteries cannot go in the hold, and the airline always has the final say. The CAA’s published guidance has no separate entry for personal e-scooters, so anyone planning to fly with one should contact the airline before travelling.
E-scooters are popular for the last mile of a journey, and the question of whether one can go on holiday inevitably comes up. This guide explains the CAA’s battery guidance for passengers and how to apply it to the figures printed on a scooter battery. It is general information, not a substitute for the airline’s own policy. For the ground journey to the airport, see the guide to taking an e-scooter on a train in Great Britain.
What the CAA guidance covers
The CAA’s page on what items can be taken on aircraft sets out which items may go in checked baggage, carry-on baggage or neither, and which need airline approval. It includes entries for petrol-powered scooters, powered wheelchairs and mobility aids, spare lithium batteries, power banks and portable electronic devices. It has no separate entry for personal e-scooters. That does not mean an e-scooter is permitted or banned; it means the battery-size rules and the airline’s own policy are the relevant starting points. The CAA’s own message is to always check with your airline.
The watt-hour thresholds
The CAA’s “Pack right. Safe flight.” guidance explains battery sizes in three bands:
- Under 100Wh: common in phones, laptops and cameras, and recommended to be carried in the cabin.
- 100Wh to 160Wh: found in power tools and large power banks, and airline approval is required to carry them.
- Over 160Wh: prohibited in passenger baggage, and must be transported separately as dangerous goods cargo.
The CAA gives the formula for working out the rating if it is not printed on the battery: volts multiplied by amp hours equals watt-hours, or volts multiplied by milliamp hours divided by 1000. The CAA also notes that since 2009 and 2011 manufacturers have been required to mark lithium-ion batteries with their watt-hour rating, and that the figure is often marked on the battery.
Anyone considering an e-scooter should therefore find the Wh rating on the battery or in the manual and compare it with these bands. A rating above 160Wh falls in the band the CAA says is prohibited in passenger baggage, regardless of what the scooter is.
Spare batteries and chargers
Battery rules depend on category and capacity. For spare lithium batteries, the CAA’s table says they cannot be carried in checked baggage, must travel in carry-on baggage and must be individually protected against short circuits, for example in original retail packaging or with taped terminals. Spares up to 100Wh need no operator approval. The CAA’s limit of no more than two spare batteries per person attaches to spares above 100Wh and up to 160Wh, which are subject to the operator’s approval; do not apply it to every small spare battery. Power banks have their own limit of two per person and must not be recharged on board. The CAA also says each battery must meet the UN Manual of Tests and Criteria requirements (Part III, subsection 38.3).
Batteries built into devices
For portable electronic devices powered by lithium batteries, the CAA’s table says devices should be carried as carry-on baggage. If they are checked, they must be completely switched off, not in sleep or hibernation mode, when the lithium-ion battery exceeds 2.7Wh per device, and measures must be taken to prevent unintentional activation and damage. Batteries between 100Wh and 160Wh in devices still need operator approval. Whether a scooter counts as a portable electronic device for these purposes is a question for the airline, which is why it should be asked in writing before booking.
Damaged or swollen batteries
The CAA says batteries that show signs of damage, overheating or swelling should not be used and should never be carried on an aircraft. It also advises choosing reputable suppliers and brands when buying devices and spare batteries, and following both airline rules and manufacturer instructions. The site’s guide to e-scooter battery fire safety lists warning signs to watch for before any journey.
Mobility scooters are different
The CAA treats battery-powered mobility aids separately. Its table lists powered wheelchairs and mobility aids as items that may be carried, with airline approval for passengers whose mobility is restricted, and its battery guidance says to check with the airline ahead of travel. Mobility aids have separate arrangements, so contact the airline about the actual aid and battery before travel. A mobility scooter is not an alternative way to carry an e-scooter.
A sensible order of steps
- Find the watt-hour rating on the battery or work it out from volts and amp hours.
- If it is above 160Wh, do not plan to carry it as passenger baggage.
- If it is up to 160Wh, ask the airline in writing whether it will accept the scooter or battery, and get the answer before paying for the ticket.
- Never pack spare lithium batteries in the hold, and protect any permitted spare against short circuits.
The bottom line
The CAA does not give e-scooters a dedicated entry, so the decision rests on the battery’s watt-hour rating and the airline’s policy. A battery above 160Wh cannot travel as passenger baggage, spare lithium batteries stay in the cabin, and a damaged battery should never be flown. Check the figures, ask the airline first and keep the reply.
Sources
- What items can I travel with and which are restricted (caa.co.uk)
- Pack right. Safe flight. (caa.co.uk)