Alaska Airlines enforces strict lithium battery regulations aligned with IATA standards. Passengers may carry lithium-ion batteries ≤100 Wh in carry-on bags (spares capped at 20 total), while 101-160 Wh batteries require airline approval. All batteries must show intact terminals and remain below 30% state of charge (SoC) when shipped as cargo. Devices with embedded batteries (e.g., wheelchairs) require protective casing and SoC documentation. Pro Tip: Never check spare batteries—thermal events in cargo holds risk catastrophic failure.
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What’s prohibited in checked luggage?
All spare lithium batteries exceeding 2g lithium metal content (metal batteries) or 100Wh (lithium-ion) are banned from checked baggage. Loose batteries in cargo risk short-circuit fires. Deep Dive: Alaska’s policy mirrors FAA rules – checked devices (laptops, cameras) must have batteries securely installed. Exception: Mobility devices with batteries ≤300 Wh may be checked if terminals are insulated and SoC ≤30%. Practically speaking, this prevents accidental activation; a hoverboard left at 80% SoC in cargo could self-heat during pressure changes. Table 1 compares allowances:
| Battery Type | Carry-On Limit | Checked Ban |
|---|---|---|
| Li-ion ≤100Wh | Unlimited (installed) | Spares prohibited |
| Li-metal ≤2g | 2 spares max | All spares banned |
How are cargo shipments regulated?
Alaska requires UN38.3-certified batteries at ≤30% SoC for cargo, with reinforced packaging. Deep Dive: Since 2025 IATA updates, all lithium cargo shipments must pass 3-meter stacking tests and use flame-retardant inner layers. For example, a 200Wh EV scooter battery shipped via Alaska Air needs multilayer packaging: non-conductive separators between cells, UN-certified outer box, and “Caution: Lithium Battery” labels. Transitional labels without phone numbers remain valid until 2026. Pro Tip: Ship via Alaska’s Dangerous Goods service for compliant handling – they’ll verify UN specification markings (e.g., UN3480 for Li-ion cells).
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What about medical device exceptions?
Approved medical batteries (e.g., oxygen concentrators) bypass some restrictions with prior notice. Deep Dive: Passengers must submit Medical Device Form 72 hours pre-flight, confirming battery specs and emergency protocols. Alaska permits up to two 160Wh spares for CPAP machines – but why the limit? Thermal runway tests show clustered batteries exponentially increase fire risks. Real-world example: A 2024 incident involving three unchecked 150Wh medical batteries in cargo triggered an emergency landing at SeaTac.
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FAQs
No – Alaska’s 160Wh maximum applies universally. Even with airline approval, consumer-grade power banks above 160Wh are prohibited on passenger flights.
Do e-bike batteries require special permits?
Yes – all e-bike batteries shipped via Alaska Air need DG declaration forms and must be drained to ≤30% capacity. Ground transport is recommended for packs exceeding 300Wh.