[BwanaNdege]

https://www.mobilityscootersdirect.com/blog/general/traveling-with-a-mobility-scooter-or-power-wheelchair-on-an-airplane/

“Per the FAA any lithium battery for mobility purposes larger than 300 Watt Hours is not in compliance. If your mobility scooter or power wheelchair contains lithium ion batteries, you may want to consider buying a set of non-spillable lead acid batteries as a backup just in case.”

[the OlLine Rebel]

And typically, no one responds to useful direct information posted.

Thanks for what you found.