Electric wheelchair, mobility scooter
This description includes wheelchairs and mobility devices with nonspillable (gel cell, absorbed electrolyte) batteries or dry cell batteries. For lithium ion batteries, see separate entries in this table.
The battery may remain installed if it is securely attached to the mobility device, the battery housing provides protection from damage, and the terminals are protected from short circuit. The battery cables may remain connected only if the device is protected from accidental activation. For complete passenger instructions contact your airline. Advance arrangements and extra check-in time may be necessary.
See the regulation: 49 CFR 175.10(a)(15)