The Takeaway
- As of September 25, 2025, Southwest requires removable lithium batteries from mobility devices to be carried into the cabin.
- Beginning January 11, 2026, battery size is capped at 300 Wh.
- The FAA already has strict rules for mobility devices with lithium batteries, including limits on spares and carry-on only.
Margaret, who uses an electric wheelchair, had been planning a trip with her granddaughter next summer. She double-checked her travel gear, but never imagined she might run into trouble just getting on the plane because of the battery in her chair.
Starting September 25, that scenario became reality unless her battery meets Southwest’s new safety requirements. The airline has changed its policy for powered mobility devices, especially those with lithium batteries. If your chair or scooter uses one, you’ll want to read this closely.
What Southwest’s Policy Changes Mean
FAA Rules You Should Know
- Lithium-ion batteries generally must be 300 Wh or less when used in mobility devices.
- Spare lithium batteries: at most one spare not exceeding 300 Wh, or two spares not exceeding 160 Wh each, in carry-on only.
- Lithium metal (non-rechargeable) batteries are forbidden in these devices.
What to Do Before You Fly
- Check your battery’s watt-hour rating.
- If your battery is removable, remove it and protect its terminals.
- Contact Southwest with your device’s battery details before travel.
- Print or save FAA’s PackSafe page for reference at the airport.
- Plan for delays — gate staff may need to inspect the device.
Where to Read the Official Policy
- Southwest Airlines: I’m bringing my own wheelchair or mobility aid
- FAA: PackSafe – Wheelchairs and Mobility Devices
