Lithium Battery Basics for Air Travel

Lithium batteries are common in electronics but pose fire risks. IATA has strict rules for air transport.

Two Types:

  1. Lithium-ion (Li-ion): Rechargeable, found in laptops, phones, power banks
  2. Lithium metal: Non-rechargeable, found in watches, cameras, some medical devices

Key Measurement: Watt-hours (Wh)

  • Formula: Wh = Voltage (V) Γ— Amp-hours (Ah)
  • Example: 3.7V Γ— 5Ah = 18.5Wh
  • Usually printed on battery label

General Rules:

  • Batteries in devices: Carry-on or checked (carry-on preferred)
  • Spare batteries: CARRY-ON ONLY
  • Damaged/recalled batteries: PROHIBITED
  • Terminals must be protected (tape or case)

Why Carry-On?

  • Cabin crew can respond to fires
  • Hold fires are harder to detect/fight
  • Passenger can monitor device

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