I'm currently an engineer and was fascinated at how technology came to be and how we were able to find out that we can take energy and essentially store it for a later time. I was thinking about batteries and how they exactly store energy.
The first question I have is how exactly do batteries store energy for a long time? and since your altitude increases when you are on a plane, I assume a battery gains potential energy. So does it actually charge the battery? A following question is if that is the reason why batteries can explode at a higher altitude?