I'd say the barrier to mass-market electric cars isn't battery size, the Model S can already go over 300 KMs on a single charge, which is very reasonable. The l

I'd say the barrier to mass-market electric cars isn't battery size, the Model S can already go over 300 KMs on a single charge, which is very reasonable. The lack of quick charging infrastructure is much more troubling. Without quick charging, it takes many hours to charge the battery, making long-distance driving infeasible. Quick-chargers also require a rather large supply of power, far more then most homes, or even petrol stations would probably have. We also have a petrol station on nearly every street corner, but it will take a long while for quick chargers to approach anywhere near this. There is also already a split on adapter standards, which will take time to settle down.