Flying with a battery-powered mobility aid, wheelchair attachment, scooter, or portable device can be straightforward, but battery rules are becoming more closely checked by airlines and airport staff.

The most important thing to remember is that being under the watt-hour limit may not be enough on its own. Some airlines may also ask for proof that the lithium battery meets UN38.3 transport safety requirements. This certificate shows that the battery has passed testing for safe transport by air.

Before travelling, it is a good idea to carry:

• The battery’s UN38.3 certificate or test summary
• A battery data sheet
• A clear photo of the battery label
• The airline’s battery or mobility-aid policy
• Any manufacturer instructions for removing, isolating, or protecting the battery

For many mobility aid batteries, airlines commonly refer to a limit of 300Wh for one removable lithium battery, or 160Wh each if the device uses two batteries. However, each airline may apply its rules differently, so always check before flying.

It is also worth contacting the airline before your trip and asking them to confirm their requirements in writing. Airport staff may not always give consistent advice, and having documents ready can help avoid delays at check-in or boarding.

Quick pre-flight checklist

Before you fly:

• Check your airline’s battery rules
• Confirm the battery watt-hour rating
• Request the UN38.3 certificate from the supplier or manufacturer
• Save documents on your phone and print a copy
• Take photos of the battery label and device
• Arrive early in case staff need to review the battery

A little preparation can make a big difference. If you travel with battery-powered equipment, treat your battery documents as essential travel paperwork. Having the right information ready can help make the airport process smoother and reduce the risk of last-minute stress.