Lithium Power Bank

Can I take Lithium Power Bank across a border? Yes in many places, with conditions. Of the 164 country-rules we've indexed for Lithium Power Bank, 155 are allowed (often with limits), 9 are restricted (permit, declaration, or quantity cap), and 0 are prohibited outright. Customs rules depend on the destination, the purpose (travelling, posting, importing personally, or importing commercially), and the quantity.

Lithium-ion power banks are portable battery storage devices used to charge mobile phones, tablets, and other electronics. They are ubiquitous travel accessories and come in capacities ranging from 5,000 mAh to 30,000 mAh or more. They contain lithium-ion or lithium-polymer cells. The safety concern driving aviation rules for lithium batteries is thermal runaway — a chain reaction in which the battery overheats, potentially catching fire, and the fire spreads to adjacent cells. This type of fire is extremely difficult to extinguish in an aircraft environment, which is why the International Air Transport Association (IATA) prohibits lithium batteries and power banks from checked baggage. All power banks must travel in cabin baggage where a fire can be observed and addressed by crew using fire-suppression equipment. Power banks are permitted in cabin baggage up to 100 Wh (watt-hours) freely. Between 100 Wh and 160 Wh, one unit is permitted per passenger with airline approval. Power banks above 160 Wh are generally prohibited on passenger aircraft. Watt-hours can be calculated from the milliamp-hour (mAh) rating: (mAh × nominal voltage) ÷ 1000 = Wh. For a standard 3.7V lithium cell, a 20,000 mAh power bank is approximately 74 Wh — within the free allowance. A 30,000 mAh bank is approximately 111 Wh — requiring airline approval. China restricts power bank imports via airlines to 20,000 mAh (approximately 74 Wh or 100 Wh depending on nominal voltage), and Chinese airports actively enforce this limit. Travelers should confirm the Wh rating on their power bank before travel and always pack it in hand luggage.

Common mistakes with Lithium Power Bank

• Assuming the rules at the origin apply at the destination — they don't. The destination customs authority is the binding rule.
• Travelling and posting are treated differently: an item you can carry may be prohibited by post (and vice versa).
• Personal vs commercial intent: above a quantity threshold, customs may treat your shipment as commercial regardless of intent.
• Undervaluing on the customs declaration to avoid duty — treated as fraud in most jurisdictions.
• Vague item descriptions on CN22/CN23 — biggest single cause of postal customs holds.
• Lithium batteries in checked baggage (must be in carry-on) or above the watt-hour limit without airline approval.
• Missing required certificates (phytosanitary, veterinary, CITES, prescription, product compliance).

Always verify against the destination's customs authority before acting. Not legal advice.

HS codes

• 8507.60 — Lithium-ion batteries
• 8504.40 — Static converters (included for power-bank circuitry)

Regulatory trend

https://www.iata.org/contentassets/6fea26dd84d24b26a7a1fd5788561d6e/lithium-battery-guidance-document.pdf — IATA DGR 2024 tightened carry-on Wh limits for power banks

Names in other languages

es

batería portátil, banco de energía, power bank

fr

batterie externe, power bank, chargeur portable

de

Powerbank, externe Batterie, Akku-Pack

zh

充电宝, 移动电源, 便携充电器

ja

モバイルバッテリー, 携帯充電器, パワーバンク

IATA Dangerous Goods classification

• Class 9Miscellaneous dangerous goods
  CARRY-ON OKCHECKED OK

General notes