Southwest Airlines’ battery policy aligns with FAA regulations, permitting lithium batteries in carry-on luggage under specific conditions. Passengers can bring lithium-ion batteries (up to 100Wh) in devices like laptops or cameras, with spare batteries limited to two per person. Larger 101–160Wh batteries require airline approval. Lithium metal batteries (non-rechargeable) are restricted to 2 grams of lithium content. All batteries must be protected from short-circuiting. Best Motorcycle Battery Chargers for Lithium-Ion Batteries
How does Southwest handle spare lithium batteries?
Spare lithium-ion batteries must be in carry-on baggage, individually protected in original packaging or insulated sleeves. Southwest prohibits loose batteries in checked luggage due to fire risks. For example, a passenger carrying two 95Wh camera batteries must keep them in separate plastic bags. Pro Tip: Use tape to cover battery terminals for added safety during transit.
What about e-cigarettes and power banks?
Devices containing lithium batteries, including vapes and power banks, must remain in carry-ons. Southwest explicitly bans charging these devices onboard. A 20,000mAh power bank (74Wh) would comply if stored properly. Real-world example: In 2025, a passenger’s improperly stored vape battery triggered a cabin alert, delaying the flight by 90 minutes during inspection.
| Device Type | Allowed? | Restrictions |
|---|---|---|
| Power Banks | Yes | ≤100Wh, max 2 units |
| E-Cigarettes | Yes | No in-flight charging |
Are there quantity limits for batteries?
Southwest enforces FAA-mandated limits: up to 20 spare lithium batteries total per passenger, with no single battery exceeding 160Wh. Medical device batteries require prior notification. Why this restriction? Bulk battery storage increases thermal runaway risks in pressurized cabins. How to Safely Ship a 100Ah Lithium-Ion Battery
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How are battery-powered mobility devices handled?
Wheelchairs/scooters with lithium batteries require special handling. Batteries must be securely attached or removed and carried in the cabin. Southwest staff will assist with storage in the cargo hold, following IATA Special Provision A67. Pro Tip: Notify the airline 48 hours before departure for smooth coordination.
| Device Type | Cabin | Cargo |
|---|---|---|
| Detached Batteries | Allowed | Prohibited |
| Mounted Batteries | N/A | Permitted |
What penalties apply for policy violations?
Passengers violating battery transport rules face confiscation of items, fines up to $4,100 per FAA guidelines, and potential flight bans. In April 2025, a traveler attempting to check a suitcase with 12 loose 18650 cells incurred a $1,200 penalty and missed their flight during the investigation.
Battery Expert Insight
FAQs
Yes, if ≤100Wh and carried on. For Mavic 3 batteries (77Wh), store each in a LiPo safety bag.
Are AA lithium batteries allowed?
Non-rechargeable lithium AA batteries (primary cells) are permitted in both carry-on and checked bags, limited to 2g lithium per battery.
Do camera battery grips count as spares?
Yes. A DSLR grip containing two LP-E6NH batteries (14Wh each) counts as two spares toward the 20-battery limit.