The regulations for flight baggage state that powerbanks with more than 160 Wh are prohibited in the aircraft cabin. In the description of this and other powerbanks, I can't find any Wh information. Is this powerbank allowed? How do I, as a layman, know the Wh capacity of a part?

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Accepted Answer

The power bank has 88.8Wh printed on it. So it should still fit for air travel.

To get from mAh to Wh, you basically need the (internal) cell pack voltage of a powerbank, since Watt = Ampere * Volt. However, I have hardly ever seen this specified for such products. The cell voltage of a classic cobalt-based Li-ion cell is 3.6V; 3.7V are also relatively common. If you calculate back from 88.8Wh via 24Ah to the voltage, you actually get 3.7V for this powerbank (88.8Wh / 24Ah = 3.7V).

However, I wouldn't rely too much on this if you don't have more detailed information about the internal construction of the powerbank -- so to be on the safe side, ask.

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The regulations for flight baggage state that powerbanks with more than 160 Wh are prohibited in the aircraft cabin. In the description of this and other powerbanks, I can't find any Wh information. Is this powerbank allowed? How do I, as a layman, know the Wh capacity of a part?