We also covered a Sparkfun teardown of some power supplies with similar conclusions, and a Fail of the Week in which a faulty USB power adapter was the likely cause of a fire.

Replacement for Amazon Fire Stick, Fire Tablet, Compatible with Samsung S10 1 x USB Charger Power Adapter + 1 x Micro-USB Cable 1 x USB-C Charger Cord (3.3 Feet) Fast Charging & Data Transferring ...

These battery packs were banned from checked luggage in 2016, following new rules set down by international aviation safety ...