How to reduce cost of EV(Electric) Cars

[ibnanv]

The most part of cost of electric cars is battery. Instead of replacing battery packs. EV cars should use electric charged sulfuric acid which should be pumped like petrol. There should be another outlet in bottom of the tank where old sulfuric acid can be pumped out of the tank. This would reduce the need to have battery packs replaced in cars. There should be a way to utilize Free Energy motors too.