(Source: https://www.faa.gov/about/office_org/headquarters_offices/ash/ash_programs/hazmat/passenger_info/media/Airline_passengers_and_batteries.pdf)
In the US, the Federal Aviation Administration (FAA) guidelines state that lithium batteries above 160WH (watt-hours) are not allowed on board.
For people who travel frequently, this comes as no surprise. There are ample signs to inform you that you're not supposed to do it, and in some airports you have to declare that you're not bringing lithium batteries above 160WH.
What is lesser known, however, is that fact that if you bring a mobility aid such as an electric wheelchair or mobility scooter, you can bring lithium batteries up to 300WH.
But because it is not common knowledge, it's often a challenge when you try to travel with such mobility aids, especially in parts of the world where the use of mobility aids isn't widespread. You will often have to tangle with poorly-trained, ill-informed airline staff. Most of the time you can get it through, if you argue hard enough, but this is a hassle most people don't like to go through.
So this is why the Ultra-Lite motorized mobility chair is designed with 2 pieces of 120WH batteries. As you can see from the chart above, if your batteries are between 100 - 160WH, you can bring TWO pieces on board as carry-on luggage.
So by keeping the batteries below 160WH, most airlines will readily approve your batteries for carriage on board.
The guidelines issued by IATA (International Air Transport Association) are no different (see below).
(Source: http://www.iata.org/whatwedo/cargo/dgr/Documents/passenger-lithium-battery.pdf)
Therefore, whether you're travelling within the US or to other parts of the world, the Ultra-Lite will be your most portable travel mobility chair!
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