Cleared to Pack

Power bank checker: can yours fly?

Enter the capacity on your power bank's label. The checker converts it to watt-hours and applies the FAA and ICAO limits, plus your airline's own rules on how many you can carry and whether you can use it on board.

Your power bank

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Enter a capacity to check it.

How the checker decides

  1. Watt-hours. Wh = mAh × voltage ÷ 1,000. Most power banks use 3.6–3.85 V cells; if the label prints Wh, use that number instead.
  2. Size limit. Up to 100 Wh flies in your carry-on without approval. 101–160 Wh needs the airline's approval, two at most. Over 160 Wh can't fly as passenger baggage.
  3. Checked bags. Never. Power banks are spare lithium batteries and must stay in the cabin.
  4. How many. International flights follow ICAO's 2026 rule of two power banks per passenger. Some airlines allow only one.
  5. Using it on board. Many airlines now ban using or charging power banks during the flight. Pick your airline to see its rule.

Rules come from the FAA, ICAO and each airline's own page; see airline power bank rules for sources. The full explanation is in our power bank guide.

Common capacities

Common power bank capacities converted to watt-hours
CapacityAt 3.6 VAt 3.7 VAt 3.85 VVerdict at 3.7 V
5,000 mAh18 Wh18.5 Wh19.2 WhCarry-on, no approval
10,000 mAh36 Wh37 Wh38.5 WhCarry-on, no approval
15,000 mAh54 Wh55.5 Wh57.8 WhCarry-on, no approval
20,000 mAh72 Wh74 Wh77 WhCarry-on, no approval
25,000 mAh90 Wh92.5 Wh96.2 WhCarry-on, no approval
26,800 mAh96.5 Wh99.2 Wh103.2 WhCarry-on, no approval
27,000 mAh97.2 Wh99.9 Wh104 WhCarry-on, no approval
30,000 mAh108 Wh111 Wh115.5 WhNeeds airline approval
40,000 mAh144 Wh148 Wh154 WhNeeds airline approval
50,000 mAh180 Wh185 Wh192.5 WhNot allowed