u/0x000-maker

Anyone who flies through CN, KR, JP, TH knows: power-bank rules are no longer "100 Wh you're fine." China requires 3C marking. Thailand caps at 20,000 mAh. Korean carriers (post-Air-Busan fire) ban overhead-bin storage. Singapore Airlines limits two banks per passenger.

I got tired of reading PDFs and built CertiWatt: tell it your power bank + your flight, get one of four answers in seconds with a citation.

Free. Works in English, Chinese, Korean, Japanese.

If anyone in this group is flying through that corridor in the next month, I'd love to know what works and what's missing for your trip.

Certiwatt

I m trying to say it is cooked by me with perfect measurements… hahaha..just kidding! 😂

Kuching best