So I know that when an electronic device powered by batteries is turned off, the batteries actually continue to move charge and will lose energy over time. I keep emergency flashlights in storage and I usually put one battery in them backwards so that a circuit is not completed. What I want to know is, does that actually do anything to save battery life? Another thing also occurred to me, by doing that, do I increase the chance of the battery rupturing and leaking while in storage? Thanks.