An unlabelled power bank may be refused. A calculator cannot replace a required physical capacity mark. If the label is missing or unreadable, confirm acceptance with the airline before travelling.
A model name is not enough
A manufacturer may sell several capacities under a similar product name. Find the exact model and its battery rating. Do not infer capacity from the charging-output wattage or a seller’s headline.
Use the rated battery voltage
If the label gives mAh and nominal voltage, calculate Wh as mAh × V ÷ 1,000. Do not substitute USB output voltage. Where an airline requires a marked Wh rating, a calculation or screenshot may still be insufficient.
An unlabelled power bank may be refused. A calculator cannot replace a required physical capacity mark. If the label is missing or unreadable, confirm acceptance with the airline before travelling.
A model name is not enough
A manufacturer may sell several capacities under a similar product name. Find the exact model and its battery rating. Do not infer capacity from the charging-output wattage or a seller’s headline.
Use the rated battery voltage
If the label gives mAh and nominal voltage, calculate Wh as mAh × V ÷ 1,000. Do not substitute USB output voltage. Where an airline requires a marked Wh rating, a calculation or screenshot may still be insufficient.
Where can I check the official rule?
Use the Etihad dangerous goods policy source linked above and confirm with every operating airline on your itinerary.
Independent guidance, not airline approval. Confirm with your operating airline before travel. Report a correction.