Mobility
Which battery can fly: the 300 Wh line
A 24 V pack is not one number. 6 Ah, 12 Ah and 20 Ah land on different sides of the airline limit — and the difference decides whether your customer can take the chair to the gate.
Three battery capacities are offered across the range — 6 Ah, 12 Ah and 20 Ah on a 24 V system. Multiply volts by amp-hours and you get watt-hours, which is the number airlines actually care about.
- 6 Ah × 24 V = 144 Wh
- 12 Ah × 24 V = 288 Wh
- 20 Ah × 24 V = 480 Wh
The limit for a lithium battery fitted to a mobility aid is commonly 300 Wh per battery, with one or two spares depending on the carrier. 144 Wh and 288 Wh sit under that line. 480 Wh does not.
What that means commercially
If you sell into travel retail, airport assistance programmes or markets where the end user flies, the 20 Ah pack is the wrong default. It is the right pack for a domestic user who wants range and never boards a plane — and it is the cheapest way to lose a sale to a competitor who understood the rule.
Two practical consequences:
- List the pack, not the model. “Airline friendly” without a watt-hour figure is a claim a buyer cannot verify. Print 288 Wh next to the 12 Ah option.
- Ship the documents with the chair. UN38.3 test summary and MSDS travel with the container, so your forwarder can book the battery before the vessel, not after.
The question to ask us
“Which pack ships with the sample, and what is its watt-hour rating?” If the answer is a model name rather than a number, the specification is not finished.