can i bring 50000mah power bank on plane :-Depending on the airline and the particular airport security standards, there may be different restrictions and regulations regulating power banks on aeroplanes. However, most airlines and airport authorities impose limitations on the number of power banks that may be transported in hand luggage as of the cutoff date in September 2021.Power banks of a 100 watt-hour (Wh) or less capacity are normally permitted in carry-on luggage without a specific permit. You may multiply the milliampere-hours (mAh) by the voltage (often 3.7V for most power banks) to determine the watt-hours of a power bank.