If you have ever been in the sky, you are probably familiar with signs saying that power banks are restricted and shouldn’t be carried in checked luggage, and why is that?
Power banks are not allowed in checked baggage on flights because they contain something called lithium-ion battery, which can pose a fire hazard. However, power banks are allowed in carry-on baggage with certain restrictions.
Risk of Fire & Thermal Runaway
Lithium-ion batteries can overheat and catch fire if they are damaged. Now you can imagine how this can become a big issue if those batteries catch fire while your airplane is in the air.
If this battery would cause a fire, it would go undetected in cargo and it would spread all over the cargo hold. That would be a bad news for everyone.
Carry-On Restrictions
Most airlines will allow power banks in carry-on bags since cabin crew can react quickly if there is any kind of issue with it.
Power banks also must be under 100Wh, though some airlines sallow up to 160Wh with approval.
No loose batteries, they must be protected from sort circuits.
Cases of Fire Incidents
There have been incidents where power banks ignited mid-flight, which is why airlines enforce strict policies nowadays.
