system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why batteries (cameras,power banks, cells, etc) are not allowed in luggage bags in airport but are allowed in carry bag.?
gpt
These items contain batteries which store a lot of energy. If there is a short circuit they can generate a lot of heat starting a fire. In a cabin with lots of people these fires could quickly be extinguished or at least contained until the airplane lands. However if the fire breaks out in the cargo compartment it might not even be noticed before it is quite big and can not be easily extinguished as people can not gain access to it.