Announcement 12 Mar. SQ/TR following quite a few other airlines recently to banning-flight use or charging of powerbanks. Social media ‘outrage’ suggests than compliance will be challenging. Better to simply ban them IMHO, and no doubt insurance companies will drive this along - or until there is an in-flight fire and total loss …

Effective 1st April 2025, Singapore Airlines customers will not be allowed to charge portable power banks via the onboard USB ports, or use power banks to charge their personal devices, throughout the duration of the flight.

The SIA Group complies with the International Air Transport Association's (IATA) Dangerous Goods Regulations regarding the carriage of power banks, which are classified as lithium batteries.

This means power banks must be carried in cabin baggage on all SIA flights and are not permitted in checked baggage. Customers may bring power banks with a capacity of up to 100Wh without special approval, while those between 100Wh and 160Wh require airline approval.

https://www.singaporeair.com/en_UK/sg/corporate/newsroom/newsalert-listing/advisory-on-portable-power-banks-on-singapore-airlines-flights/