Fill up an electric car with thousands of golf-ball-sized batteries, each holding maybe 10 watts. Small enough they are treated like almost like a fluid. They

Fill up an electric car with thousands of golf-ball-sized batteries, each holding maybe 10 watts. Small enough they are treated like almost like a fluid. They're dumped and recharged at a station, damaged ones disposed of. Too cheap individually to worry about damage, homogeneous enough that ownership of specific cells is not a concern. I'll leave the technical details for the engineers. :)