As I tested out if you could actually light a fire with a gum wrapper and a AA battery i found out that yes, you probably can but it's hard to find any gum that is packeged in tin foil anymore.
I also did a video in the past testing out a 9 volt and some steel wool (which works) but the problem is that there arent many electrinics that require a 9 volt battery.
My conclusion: make sure you have a couple of bic lighters...problem solved.