How many spare LiPo batteries within 100-160 Wh can be carried in checked luggage on a commercial flight?

• A. Two
• B. One
• C. Three
• D. None

Answer: (A)

Spare LiPo batteries pose a fire risk and are treated as hazardous cargo on passenger flights. The key safety rule is that spares must be carried in the cabin, not in checked baggage, so that crewmembers and fire-suppression resources are readily available if a fault occurs. The watt-hour rating (Wh) of the battery determines how many you can carry and whether you need airline approval, but the critical point for checked luggage is that spare batteries are not allowed there. For batteries in the 100–160 Wh range, you would typically need airline approval to bring them at all, and even then they must be in carry-on with terminals protected (often in their original packaging or a protective case). Therefore, you would not be permitted to place spare batteries of 100–160 Wh in checked luggage, meaning the allowed number in checked baggage is effectively none.