People have car batteries. Just make sure they have a way to hook up to them. In the "first" and "second" world, they are in their cars. In the "third" world

People have car batteries. Just make sure they have a way to hook up to them. In the "first" and "second" world, they are in their cars. In the "third" world, they are charged somewhere and transported to the home (unless they are wealthy enough to have a generator). I'm in the U.S., and with this year's crazy weather, I've observed more and more people who have "thrown their hands up" and purchased a small, gasoline powered Honda or similar generator. When the power goes out, the neighborhood starts humming with the sound of generators. (I hear it somewhat in despair; it makes me worry we are truly heading in the "everybody for themselves" direction, as opposed to actually maintaining our infrastructure. Similar to how people describe the SUV trend in terms of "a way to deal with all the potholes and the streets that don't get plowed after snowstorms, anymore".)