It would appear that 1/3 to 1/2 of the weight of an electric car is battery weight, an example of this is my citicar, 1,200 pound car, of that 500 pounds is batteries, the
electric ford ranger has a curb weight of 4,800 pounds with a 2,000 pound battery pack, so 2,800 pounds without batteries (less then the gas modle, no engine, exaust and so on), I could go on with other vehicle specs, but this appears to be standard, and the last price I got on lead acid batteries came close to $2 per pound, this is part of why a lighter weight car is ideal.