Travelers flying with Turkish budget carrier AJet will now have to keep their portable chargers tucked away for the entire flight. The airline has officially banned the use of power banks onboard, following safety recommendations from Turkey’s Directorate General of Civil Aviation (SHGM).

The new rule mirrors a similar policy recently introduced by another Turkish low-cost carrier, Pegasus. Under the guidelines, passengers may still carry power banks with lithium batteries of up to 100 Wh in their hand luggage, but they cannot use them during the flight. Lithium batteries between 100 and 160 Wh will require airline approval, and anything over 160 Wh will only be allowed as checked baggage under specific conditions.

The SHGM urged airlines to tighten rules earlier this month after an incident on July 29 involving a lost power bank forced an Asiana Airlines flight from Istanbul to Seoul to turn back three hours into its journey.

The crackdown extends beyond portable chargers. Since August, Turkish Airlines has banned “smart luggage” with non-removable lithium batteries from both checked and carry-on baggage.

For passengers, the message is clear: in-flight device charging via personal power banks is off the table — at least for now — as airlines ramp up safety measures surrounding lithium battery use.