Rules differ by region: Australia limits passengers to 2 spare lithium batteries in carry-on. Other regions have no stated quantity limit for personal use.
💼 Cabin bag
Depends
Under 100Wh: permitted. 100–160Wh: airline approval required. Over 160Wh: prohibited.
✈️ Hold (checked)
No
All power banks (lithium batteries) are banned from checked baggage — fire risk without cabin access.
💡 Tip: To find your bank's watt-hours: divide mAh by 1000, then multiply by voltage (usually 3.7V). A 20,000mAh bank = 74Wh — permitted in carry-on everywhere.
Airline-specific rules
🇮🇪RyanairMax 100Wh per power bank, max 2 per passenger, cabin only.
🇬🇧EasyJetMust be in cabin baggage, max 100Wh, switched off.
🇨🇳Air ChinaMax 100Wh; 100–160Wh requires airline approval.
🇦🇪EmiratesCabin only; max 100Wh per unit, up to 2 units; 100–160Wh requires approval.
🇺🇸DeltaCabin only; max 100Wh without approval; 100–160Wh needs prior airline approval.
🇸🇬Singapore AirlinesCabin only; limited to 100Wh per unit; quantities over 100Wh require prior approval.
Related items
Browse all Electronics →Based on official TSA guidelines. Rules vary by airline and route — always verify with your carrier before travel. · Rules last verified May 2026.
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